./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-races/race-2_2-container_of.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 0e0057cc 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_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-races/race-2_2-container_of.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91 --witnessprinter.witness.filename witness --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 6053c0f6a5de5dc1a7614e5acfd1de5bdb570ebc833d8c4c70a1e68bd98ac1b0 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-25 00:01:28,555 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-25 00:01:28,647 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2023-11-25 00:01:28,655 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-25 00:01:28,656 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-25 00:01:28,711 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-25 00:01:28,712 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-25 00:01:28,713 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-25 00:01:28,714 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-25 00:01:28,719 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-25 00:01:28,720 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-25 00:01:28,721 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-25 00:01:28,722 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-25 00:01:28,724 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-25 00:01:28,724 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-25 00:01:28,724 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-25 00:01:28,725 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-25 00:01:28,727 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-25 00:01:28,727 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-25 00:01:28,728 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-25 00:01:28,728 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-25 00:01:28,729 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-25 00:01:28,729 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-25 00:01:28,730 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-25 00:01:28,731 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-25 00:01:28,731 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-25 00:01:28,732 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-25 00:01:28,732 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-25 00:01:28,733 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-25 00:01:28,733 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-25 00:01:28,734 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-25 00:01:28,735 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-25 00:01:28,735 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-25 00:01:28,735 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-25 00:01:28,735 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-25 00:01:28,736 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-25 00:01:28,736 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-25 00:01:28,736 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-25 00:01:28,736 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-25 00:01:28,737 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-25 00:01:28,737 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:01:28,737 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-25 00:01:28,738 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-25 00:01:28,738 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-25 00:01:28,738 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-25 00:01:28,739 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-25 00:01:28,739 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-25 00:01:28,739 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-25 00:01:28,739 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6053c0f6a5de5dc1a7614e5acfd1de5bdb570ebc833d8c4c70a1e68bd98ac1b0 [2023-11-25 00:01:29,059 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-25 00:01:29,093 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-25 00:01:29,097 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-25 00:01:29,099 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-25 00:01:29,099 INFO L274 PluginConnector]: CDTParser initialized [2023-11-25 00:01:29,101 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/ldv-races/race-2_2-container_of.i [2023-11-25 00:01:32,135 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-25 00:01:32,555 INFO L384 CDTParser]: Found 1 translation units. [2023-11-25 00:01:32,556 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/sv-benchmarks/c/ldv-races/race-2_2-container_of.i [2023-11-25 00:01:32,613 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/data/a8d7079ec/f6ad29a88d73495292f8fb8354506c86/FLAGaebf34b45 [2023-11-25 00:01:32,630 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/data/a8d7079ec/f6ad29a88d73495292f8fb8354506c86 [2023-11-25 00:01:32,633 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-25 00:01:32,635 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-25 00:01:32,636 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-25 00:01:32,637 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-25 00:01:32,643 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-25 00:01:32,644 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:01:32" (1/1) ... [2023-11-25 00:01:32,645 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15d6937d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:32, skipping insertion in model container [2023-11-25 00:01:32,645 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:01:32" (1/1) ... [2023-11-25 00:01:32,720 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-25 00:01:33,379 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:01:33,393 ERROR L324 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) [2023-11-25 00:01:33,401 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3148f4f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:33, skipping insertion in model container [2023-11-25 00:01:33,401 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-25 00:01:33,402 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-25 00:01:33,404 INFO L158 Benchmark]: Toolchain (without parser) took 768.00ms. Allocated memory is still 155.2MB. Free memory was 119.0MB in the beginning and 98.6MB in the end (delta: 20.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-25 00:01:33,405 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 119.5MB. Free memory is still 92.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-25 00:01:33,406 INFO L158 Benchmark]: CACSL2BoogieTranslator took 765.30ms. Allocated memory is still 155.2MB. Free memory was 119.0MB in the beginning and 98.6MB in the end (delta: 20.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-25 00:01:33,407 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 119.5MB. Free memory is still 92.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 765.30ms. Allocated memory is still 155.2MB. Free memory was 119.0MB in the beginning and 98.6MB in the end (delta: 20.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 3904]: 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_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-races/race-2_2-container_of.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91 --witnessprinter.witness.filename witness --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 6053c0f6a5de5dc1a7614e5acfd1de5bdb570ebc833d8c4c70a1e68bd98ac1b0 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-25 00:01:35,932 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-25 00:01:36,076 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2023-11-25 00:01:36,086 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-25 00:01:36,088 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-25 00:01:36,138 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-25 00:01:36,139 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-25 00:01:36,139 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-25 00:01:36,141 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-25 00:01:36,146 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-25 00:01:36,146 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-25 00:01:36,147 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-25 00:01:36,147 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-25 00:01:36,149 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-25 00:01:36,149 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-25 00:01:36,150 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-25 00:01:36,151 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-25 00:01:36,151 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-25 00:01:36,152 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-25 00:01:36,153 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-25 00:01:36,154 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-25 00:01:36,155 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-25 00:01:36,155 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-25 00:01:36,156 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-25 00:01:36,156 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-25 00:01:36,157 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-25 00:01:36,157 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-25 00:01:36,158 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-25 00:01:36,158 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-25 00:01:36,159 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-25 00:01:36,160 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-25 00:01:36,161 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-25 00:01:36,161 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-25 00:01:36,161 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-25 00:01:36,162 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-25 00:01:36,162 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-25 00:01:36,163 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-25 00:01:36,163 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:01:36,164 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-25 00:01:36,164 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-25 00:01:36,164 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-25 00:01:36,165 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-25 00:01:36,165 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-25 00:01:36,165 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-25 00:01:36,166 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-25 00:01:36,166 INFO L153 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_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6053c0f6a5de5dc1a7614e5acfd1de5bdb570ebc833d8c4c70a1e68bd98ac1b0 [2023-11-25 00:01:36,566 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-25 00:01:36,600 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-25 00:01:36,602 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-25 00:01:36,603 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-25 00:01:36,604 INFO L274 PluginConnector]: CDTParser initialized [2023-11-25 00:01:36,606 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/ldv-races/race-2_2-container_of.i [2023-11-25 00:01:39,691 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-25 00:01:40,163 INFO L384 CDTParser]: Found 1 translation units. [2023-11-25 00:01:40,164 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/sv-benchmarks/c/ldv-races/race-2_2-container_of.i [2023-11-25 00:01:40,219 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/data/bf6655716/529ac3da9424417e8633b11b2f5f1fc2/FLAGf68902ae4 [2023-11-25 00:01:40,235 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/data/bf6655716/529ac3da9424417e8633b11b2f5f1fc2 [2023-11-25 00:01:40,240 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-25 00:01:40,242 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-25 00:01:40,243 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-25 00:01:40,244 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-25 00:01:40,248 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-25 00:01:40,249 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:01:40" (1/1) ... [2023-11-25 00:01:40,250 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d6fda2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:40, skipping insertion in model container [2023-11-25 00:01:40,250 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:01:40" (1/1) ... [2023-11-25 00:01:40,378 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-25 00:01:41,054 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:01:41,077 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-25 00:01:41,101 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-25 00:01:41,143 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:01:41,149 INFO L202 MainTranslator]: Completed pre-run [2023-11-25 00:01:41,228 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:01:41,308 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:01:41,309 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:01:41,317 INFO L206 MainTranslator]: Completed translation [2023-11-25 00:01:41,318 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:41 WrapperNode [2023-11-25 00:01:41,318 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-25 00:01:41,319 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-25 00:01:41,320 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-25 00:01:41,320 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-25 00:01:41,328 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:41" (1/1) ... [2023-11-25 00:01:41,356 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:41" (1/1) ... [2023-11-25 00:01:41,384 INFO L138 Inliner]: procedures = 250, calls = 48, calls flagged for inlining = 11, calls inlined = 14, statements flattened = 126 [2023-11-25 00:01:41,384 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-25 00:01:41,385 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-25 00:01:41,385 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-25 00:01:41,385 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-25 00:01:41,394 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:41" (1/1) ... [2023-11-25 00:01:41,395 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:41" (1/1) ... [2023-11-25 00:01:41,415 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:41" (1/1) ... [2023-11-25 00:01:41,415 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:41" (1/1) ... [2023-11-25 00:01:41,450 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:41" (1/1) ... [2023-11-25 00:01:41,457 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:41" (1/1) ... [2023-11-25 00:01:41,470 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:41" (1/1) ... [2023-11-25 00:01:41,473 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:41" (1/1) ... [2023-11-25 00:01:41,480 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-25 00:01:41,481 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-25 00:01:41,481 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-25 00:01:41,482 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-25 00:01:41,487 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:41" (1/1) ... [2023-11-25 00:01:41,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:01:41,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:01:41,522 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-25 00:01:41,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-25 00:01:41,556 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-25 00:01:41,556 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2023-11-25 00:01:41,556 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2023-11-25 00:01:41,557 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-25 00:01:41,557 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-25 00:01:41,557 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-25 00:01:41,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-25 00:01:41,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-25 00:01:41,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-11-25 00:01:41,557 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-25 00:01:41,557 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-25 00:01:41,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-25 00:01:41,558 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-25 00:01:41,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-25 00:01:41,559 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-25 00:01:41,858 INFO L241 CfgBuilder]: Building ICFG [2023-11-25 00:01:41,860 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-25 00:01:42,535 INFO L282 CfgBuilder]: Performing block encoding [2023-11-25 00:01:42,771 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-25 00:01:42,771 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-25 00:01:42,772 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:01:42 BoogieIcfgContainer [2023-11-25 00:01:42,773 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-25 00:01:42,775 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-25 00:01:42,776 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-25 00:01:42,779 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-25 00:01:42,780 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 12:01:40" (1/3) ... [2023-11-25 00:01:42,781 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e76f95c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:01:42, skipping insertion in model container [2023-11-25 00:01:42,781 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:41" (2/3) ... [2023-11-25 00:01:42,783 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e76f95c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:01:42, skipping insertion in model container [2023-11-25 00:01:42,783 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:01:42" (3/3) ... [2023-11-25 00:01:42,784 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_2-container_of.i [2023-11-25 00:01:42,803 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-25 00:01:42,804 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 39 error locations. [2023-11-25 00:01:42,804 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-25 00:01:42,922 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-25 00:01:42,957 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 112 places, 116 transitions, 246 flow [2023-11-25 00:01:43,270 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 5396 states, 4592 states have (on average 3.369773519163763) internal successors, (15474), 5395 states have internal predecessors, (15474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:01:43,292 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-25 00:01:43,299 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;@5b5c9ed7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-25 00:01:43,299 INFO L358 AbstractCegarLoop]: Starting to check reachability of 53 error locations. [2023-11-25 00:01:43,324 INFO L276 IsEmpty]: Start isEmpty. Operand has 5396 states, 4592 states have (on average 3.369773519163763) internal successors, (15474), 5395 states have internal predecessors, (15474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:01:43,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-25 00:01:43,333 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:01:43,334 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-25 00:01:43,337 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK (and 50 more)] === [2023-11-25 00:01:43,342 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:01:43,342 INFO L85 PathProgramCache]: Analyzing trace with hash 454993, now seen corresponding path program 1 times [2023-11-25 00:01:43,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-25 00:01:43,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1143329065] [2023-11-25 00:01:43,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:01:43,400 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 [2023-11-25 00:01:43,400 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-25 00:01:43,401 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -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) [2023-11-25 00:01:43,403 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -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 [2023-11-25 00:01:43,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:01:43,555 INFO L262 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-25 00:01:43,570 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:01:43,646 INFO L378 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 [2023-11-25 00:01:43,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:01:43,658 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:01:43,659 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-25 00:01:43,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1143329065] [2023-11-25 00:01:43,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1143329065] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:01:43,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:01:43,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-25 00:01:43,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812319204] [2023-11-25 00:01:43,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:01:43,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:01:43,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-25 00:01:43,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:01:43,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:01:43,723 INFO L87 Difference]: Start difference. First operand has 5396 states, 4592 states have (on average 3.369773519163763) internal successors, (15474), 5395 states have internal predecessors, (15474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:01:44,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:01:44,288 INFO L93 Difference]: Finished difference Result 5102 states and 14068 transitions. [2023-11-25 00:01:44,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:01:44,291 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2023-11-25 00:01:44,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:01:44,351 INFO L225 Difference]: With dead ends: 5102 [2023-11-25 00:01:44,351 INFO L226 Difference]: Without dead ends: 5097 [2023-11-25 00:01:44,352 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:01:44,356 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 38 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-25 00:01:44,357 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 67 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-25 00:01:44,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5097 states. [2023-11-25 00:01:44,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5097 to 5097. [2023-11-25 00:01:44,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5097 states, 4297 states have (on average 3.2708866651151967) internal successors, (14055), 5096 states have internal predecessors, (14055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:01:44,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5097 states to 5097 states and 14055 transitions. [2023-11-25 00:01:44,720 INFO L78 Accepts]: Start accepts. Automaton has 5097 states and 14055 transitions. Word has length 3 [2023-11-25 00:01:44,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:01:44,720 INFO L495 AbstractCegarLoop]: Abstraction has 5097 states and 14055 transitions. [2023-11-25 00:01:44,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:01:44,721 INFO L276 IsEmpty]: Start isEmpty. Operand 5097 states and 14055 transitions. [2023-11-25 00:01:44,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-25 00:01:44,722 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:01:44,722 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-25 00:01:44,731 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-11-25 00:01:44,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-25 00:01:44,927 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK (and 50 more)] === [2023-11-25 00:01:44,928 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:01:44,928 INFO L85 PathProgramCache]: Analyzing trace with hash 454994, now seen corresponding path program 1 times [2023-11-25 00:01:44,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-25 00:01:44,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2029260837] [2023-11-25 00:01:44,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:01:44,931 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-25 00:01:44,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-25 00:01:44,932 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -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) [2023-11-25 00:01:44,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -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 [2023-11-25 00:01:45,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:01:45,093 INFO L262 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-25 00:01:45,095 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:01:45,122 INFO L378 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 [2023-11-25 00:01:45,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:01:45,140 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:01:45,140 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-25 00:01:45,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2029260837] [2023-11-25 00:01:45,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2029260837] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:01:45,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:01:45,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-25 00:01:45,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305527327] [2023-11-25 00:01:45,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:01:45,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:01:45,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-25 00:01:45,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:01:45,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:01:45,149 INFO L87 Difference]: Start difference. First operand 5097 states and 14055 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:01:45,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:01:45,658 INFO L93 Difference]: Finished difference Result 5095 states and 14053 transitions. [2023-11-25 00:01:45,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:01:45,659 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2023-11-25 00:01:45,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:01:45,704 INFO L225 Difference]: With dead ends: 5095 [2023-11-25 00:01:45,705 INFO L226 Difference]: Without dead ends: 5095 [2023-11-25 00:01:45,705 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:01:45,707 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 36 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-25 00:01:45,708 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 68 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-25 00:01:45,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5095 states. [2023-11-25 00:01:45,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5095 to 5095. [2023-11-25 00:01:45,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5095 states, 4297 states have (on average 3.2704212241098443) internal successors, (14053), 5094 states have internal predecessors, (14053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:01:45,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5095 states to 5095 states and 14053 transitions. [2023-11-25 00:01:45,979 INFO L78 Accepts]: Start accepts. Automaton has 5095 states and 14053 transitions. Word has length 3 [2023-11-25 00:01:45,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:01:45,980 INFO L495 AbstractCegarLoop]: Abstraction has 5095 states and 14053 transitions. [2023-11-25 00:01:45,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:01:45,995 INFO L276 IsEmpty]: Start isEmpty. Operand 5095 states and 14053 transitions. [2023-11-25 00:01:45,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-25 00:01:46,000 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:01:46,001 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-25 00:01:46,012 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-25 00:01:46,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-25 00:01:46,205 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK (and 50 more)] === [2023-11-25 00:01:46,206 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:01:46,206 INFO L85 PathProgramCache]: Analyzing trace with hash 14104646, now seen corresponding path program 1 times [2023-11-25 00:01:46,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-25 00:01:46,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1319295634] [2023-11-25 00:01:46,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:01:46,208 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 [2023-11-25 00:01:46,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-25 00:01:46,209 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -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) [2023-11-25 00:01:46,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -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 [2023-11-25 00:01:46,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:01:46,324 INFO L262 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-25 00:01:46,324 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:01:46,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:01:46,333 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:01:46,333 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-25 00:01:46,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1319295634] [2023-11-25 00:01:46,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1319295634] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:01:46,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:01:46,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-25 00:01:46,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481494192] [2023-11-25 00:01:46,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:01:46,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:01:46,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-25 00:01:46,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:01:46,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:01:46,336 INFO L87 Difference]: Start difference. First operand 5095 states and 14053 transitions. Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:01:46,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:01:46,671 INFO L93 Difference]: Finished difference Result 5095 states and 14052 transitions. [2023-11-25 00:01:46,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:01:46,672 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2023-11-25 00:01:46,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:01:46,720 INFO L225 Difference]: With dead ends: 5095 [2023-11-25 00:01:46,720 INFO L226 Difference]: Without dead ends: 5095 [2023-11-25 00:01:46,720 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:01:46,721 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 95 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-25 00:01:46,722 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 46 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-25 00:01:46,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5095 states. [2023-11-25 00:01:46,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5095 to 5095. [2023-11-25 00:01:46,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5095 states, 4297 states have (on average 3.2701885036071676) internal successors, (14052), 5094 states have internal predecessors, (14052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:01:46,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5095 states to 5095 states and 14052 transitions. [2023-11-25 00:01:46,996 INFO L78 Accepts]: Start accepts. Automaton has 5095 states and 14052 transitions. Word has length 4 [2023-11-25 00:01:46,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:01:46,997 INFO L495 AbstractCegarLoop]: Abstraction has 5095 states and 14052 transitions. [2023-11-25 00:01:46,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:01:46,998 INFO L276 IsEmpty]: Start isEmpty. Operand 5095 states and 14052 transitions. [2023-11-25 00:01:46,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-25 00:01:46,998 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:01:46,999 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-25 00:01:47,004 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-25 00:01:47,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-25 00:01:47,202 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK (and 50 more)] === [2023-11-25 00:01:47,203 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:01:47,203 INFO L85 PathProgramCache]: Analyzing trace with hash 670187504, now seen corresponding path program 1 times [2023-11-25 00:01:47,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-25 00:01:47,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1735618124] [2023-11-25 00:01:47,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:01:47,204 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 [2023-11-25 00:01:47,205 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-25 00:01:47,206 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -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) [2023-11-25 00:01:47,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -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 [2023-11-25 00:01:47,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:01:47,428 INFO L262 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-25 00:01:47,430 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:01:47,496 INFO L349 Elim1Store]: treesize reduction 24, result has 33.3 percent of original size [2023-11-25 00:01:47,496 INFO L378 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 21 treesize of output 20 [2023-11-25 00:01:47,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:01:47,530 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:01:47,531 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-25 00:01:47,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1735618124] [2023-11-25 00:01:47,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1735618124] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:01:47,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:01:47,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-25 00:01:47,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661646614] [2023-11-25 00:01:47,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:01:47,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:01:47,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-25 00:01:47,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:01:47,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:01:47,533 INFO L87 Difference]: Start difference. First operand 5095 states and 14052 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:01:48,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:01:48,095 INFO L93 Difference]: Finished difference Result 4972 states and 13665 transitions. [2023-11-25 00:01:48,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:01:48,096 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-11-25 00:01:48,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:01:48,146 INFO L225 Difference]: With dead ends: 4972 [2023-11-25 00:01:48,147 INFO L226 Difference]: Without dead ends: 4972 [2023-11-25 00:01:48,148 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:01:48,150 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 68 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-25 00:01:48,153 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 46 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-25 00:01:48,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4972 states. [2023-11-25 00:01:48,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4972 to 4949. [2023-11-25 00:01:48,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4949 states, 4202 states have (on average 3.2465492622560683) internal successors, (13642), 4948 states have internal predecessors, (13642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:01:48,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4949 states to 4949 states and 13642 transitions. [2023-11-25 00:01:48,407 INFO L78 Accepts]: Start accepts. Automaton has 4949 states and 13642 transitions. Word has length 6 [2023-11-25 00:01:48,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:01:48,407 INFO L495 AbstractCegarLoop]: Abstraction has 4949 states and 13642 transitions. [2023-11-25 00:01:48,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:01:48,408 INFO L276 IsEmpty]: Start isEmpty. Operand 4949 states and 13642 transitions. [2023-11-25 00:01:48,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-25 00:01:48,408 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:01:48,409 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-25 00:01:48,420 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-11-25 00:01:48,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-25 00:01:48,615 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK (and 50 more)] === [2023-11-25 00:01:48,616 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:01:48,616 INFO L85 PathProgramCache]: Analyzing trace with hash 670187505, now seen corresponding path program 1 times [2023-11-25 00:01:48,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-25 00:01:48,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [646274281] [2023-11-25 00:01:48,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:01:48,617 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 [2023-11-25 00:01:48,618 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-25 00:01:48,619 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -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) [2023-11-25 00:01:48,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -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 [2023-11-25 00:01:48,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:01:48,818 INFO L262 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-25 00:01:48,819 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:01:48,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-25 00:01:48,883 INFO L378 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 14 treesize of output 9 [2023-11-25 00:01:48,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:01:48,941 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:01:48,941 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-25 00:01:48,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [646274281] [2023-11-25 00:01:48,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [646274281] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:01:48,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:01:48,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-25 00:01:48,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671688720] [2023-11-25 00:01:48,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:01:48,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-25 00:01:48,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-25 00:01:48,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-25 00:01:48,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-25 00:01:48,944 INFO L87 Difference]: Start difference. First operand 4949 states and 13642 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:01:49,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:01:49,466 INFO L93 Difference]: Finished difference Result 4826 states and 13255 transitions. [2023-11-25 00:01:49,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-25 00:01:49,467 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-11-25 00:01:49,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:01:49,491 INFO L225 Difference]: With dead ends: 4826 [2023-11-25 00:01:49,491 INFO L226 Difference]: Without dead ends: 4825 [2023-11-25 00:01:49,491 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-25 00:01:49,492 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 135 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-25 00:01:49,492 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 30 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-25 00:01:49,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4825 states. [2023-11-25 00:01:49,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4825 to 4802. [2023-11-25 00:01:49,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4802 states, 4106 states have (on average 3.2223575255723333) internal successors, (13231), 4801 states have internal predecessors, (13231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:01:49,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4802 states to 4802 states and 13231 transitions. [2023-11-25 00:01:49,731 INFO L78 Accepts]: Start accepts. Automaton has 4802 states and 13231 transitions. Word has length 6 [2023-11-25 00:01:49,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:01:49,731 INFO L495 AbstractCegarLoop]: Abstraction has 4802 states and 13231 transitions. [2023-11-25 00:01:49,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:01:49,732 INFO L276 IsEmpty]: Start isEmpty. Operand 4802 states and 13231 transitions. [2023-11-25 00:01:49,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-25 00:01:49,733 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:01:49,733 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:01:49,743 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-11-25 00:01:49,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-25 00:01:49,938 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK (and 50 more)] === [2023-11-25 00:01:49,939 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:01:49,939 INFO L85 PathProgramCache]: Analyzing trace with hash -1746545674, now seen corresponding path program 1 times [2023-11-25 00:01:49,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-25 00:01:49,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [457918304] [2023-11-25 00:01:49,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:01:49,940 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 [2023-11-25 00:01:49,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-25 00:01:49,942 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -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) [2023-11-25 00:01:49,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -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 [2023-11-25 00:01:50,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:01:50,191 INFO L262 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-25 00:01:50,192 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:01:50,242 INFO L349 Elim1Store]: treesize reduction 24, result has 33.3 percent of original size [2023-11-25 00:01:50,243 INFO L378 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 21 treesize of output 20 [2023-11-25 00:01:50,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:01:50,293 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:01:50,293 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-25 00:01:50,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [457918304] [2023-11-25 00:01:50,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [457918304] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:01:50,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:01:50,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-25 00:01:50,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24900405] [2023-11-25 00:01:50,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:01:50,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:01:50,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-25 00:01:50,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:01:50,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:01:50,296 INFO L87 Difference]: Start difference. First operand 4802 states and 13231 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:01:50,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:01:50,732 INFO L93 Difference]: Finished difference Result 4801 states and 13208 transitions. [2023-11-25 00:01:50,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:01:50,733 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-11-25 00:01:50,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:01:50,756 INFO L225 Difference]: With dead ends: 4801 [2023-11-25 00:01:50,757 INFO L226 Difference]: Without dead ends: 4801 [2023-11-25 00:01:50,757 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:01:50,758 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 61 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-25 00:01:50,758 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 44 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-25 00:01:50,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4801 states. [2023-11-25 00:01:50,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4801 to 4778. [2023-11-25 00:01:50,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4778 states, 4096 states have (on average 3.218994140625) internal successors, (13185), 4777 states have internal predecessors, (13185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:01:50,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4778 states to 4778 states and 13185 transitions. [2023-11-25 00:01:50,924 INFO L78 Accepts]: Start accepts. Automaton has 4778 states and 13185 transitions. Word has length 9 [2023-11-25 00:01:50,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:01:50,925 INFO L495 AbstractCegarLoop]: Abstraction has 4778 states and 13185 transitions. [2023-11-25 00:01:50,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:01:50,925 INFO L276 IsEmpty]: Start isEmpty. Operand 4778 states and 13185 transitions. [2023-11-25 00:01:50,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-25 00:01:50,926 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:01:50,926 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:01:50,933 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -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 [2023-11-25 00:01:51,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-25 00:01:51,132 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK (and 50 more)] === [2023-11-25 00:01:51,133 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:01:51,133 INFO L85 PathProgramCache]: Analyzing trace with hash -1746545673, now seen corresponding path program 1 times [2023-11-25 00:01:51,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-25 00:01:51,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [102120755] [2023-11-25 00:01:51,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:01:51,134 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 [2023-11-25 00:01:51,134 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-25 00:01:51,135 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -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) [2023-11-25 00:01:51,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -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 [2023-11-25 00:01:51,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:01:51,428 INFO L262 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-25 00:01:51,429 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:01:51,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-25 00:01:51,501 INFO L378 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 14 treesize of output 9 [2023-11-25 00:01:51,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:01:51,589 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:01:51,590 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-25 00:01:51,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [102120755] [2023-11-25 00:01:51,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [102120755] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:01:51,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:01:51,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-25 00:01:51,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466112895] [2023-11-25 00:01:51,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:01:51,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-25 00:01:51,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-25 00:01:51,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-25 00:01:51,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-25 00:01:51,592 INFO L87 Difference]: Start difference. First operand 4778 states and 13185 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:01:52,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:01:52,097 INFO L93 Difference]: Finished difference Result 4777 states and 13162 transitions. [2023-11-25 00:01:52,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-25 00:01:52,097 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-11-25 00:01:52,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:01:52,116 INFO L225 Difference]: With dead ends: 4777 [2023-11-25 00:01:52,117 INFO L226 Difference]: Without dead ends: 4777 [2023-11-25 00:01:52,117 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-25 00:01:52,118 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 131 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-25 00:01:52,118 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 30 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-25 00:01:52,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4777 states. [2023-11-25 00:01:52,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4777 to 4754. [2023-11-25 00:01:52,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4754 states, 4086 states have (on average 3.2156142927068037) internal successors, (13139), 4753 states have internal predecessors, (13139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:01:52,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4754 states to 4754 states and 13139 transitions. [2023-11-25 00:01:52,253 INFO L78 Accepts]: Start accepts. Automaton has 4754 states and 13139 transitions. Word has length 9 [2023-11-25 00:01:52,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:01:52,254 INFO L495 AbstractCegarLoop]: Abstraction has 4754 states and 13139 transitions. [2023-11-25 00:01:52,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:01:52,254 INFO L276 IsEmpty]: Start isEmpty. Operand 4754 states and 13139 transitions. [2023-11-25 00:01:52,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-25 00:01:52,255 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:01:52,255 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:01:52,265 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-11-25 00:01:52,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-25 00:01:52,462 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK (and 50 more)] === [2023-11-25 00:01:52,462 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:01:52,462 INFO L85 PathProgramCache]: Analyzing trace with hash -1746544584, now seen corresponding path program 1 times [2023-11-25 00:01:52,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-25 00:01:52,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1413899795] [2023-11-25 00:01:52,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:01:52,463 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 [2023-11-25 00:01:52,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-25 00:01:52,464 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -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) [2023-11-25 00:01:52,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -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 [2023-11-25 00:01:52,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:01:52,654 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-25 00:01:52,656 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:01:52,669 INFO L378 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 [2023-11-25 00:01:52,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:01:52,796 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:01:52,796 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-25 00:01:52,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1413899795] [2023-11-25 00:01:52,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1413899795] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:01:52,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:01:52,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-25 00:01:52,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604618786] [2023-11-25 00:01:52,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:01:52,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-25 00:01:52,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-25 00:01:52,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-25 00:01:52,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-25 00:01:52,799 INFO L87 Difference]: Start difference. First operand 4754 states and 13139 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:01:53,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:01:53,926 INFO L93 Difference]: Finished difference Result 3665 states and 9971 transitions. [2023-11-25 00:01:53,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-25 00:01:53,926 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-11-25 00:01:53,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:01:53,943 INFO L225 Difference]: With dead ends: 3665 [2023-11-25 00:01:53,944 INFO L226 Difference]: Without dead ends: 3665 [2023-11-25 00:01:53,944 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-25 00:01:53,945 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 163 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-25 00:01:53,945 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 169 Invalid, 341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 337 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-25 00:01:53,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3665 states. [2023-11-25 00:01:54,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3665 to 3665. [2023-11-25 00:01:54,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3665 states, 3249 states have (on average 3.0689442905509385) internal successors, (9971), 3664 states have internal predecessors, (9971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:01:54,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3665 states to 3665 states and 9971 transitions. [2023-11-25 00:01:54,071 INFO L78 Accepts]: Start accepts. Automaton has 3665 states and 9971 transitions. Word has length 9 [2023-11-25 00:01:54,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:01:54,072 INFO L495 AbstractCegarLoop]: Abstraction has 3665 states and 9971 transitions. [2023-11-25 00:01:54,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:01:54,072 INFO L276 IsEmpty]: Start isEmpty. Operand 3665 states and 9971 transitions. [2023-11-25 00:01:54,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-25 00:01:54,073 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:01:54,073 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:01:54,083 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -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)] Ended with exit code 0 [2023-11-25 00:01:54,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-25 00:01:54,278 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting my_callbackErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK (and 50 more)] === [2023-11-25 00:01:54,278 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:01:54,278 INFO L85 PathProgramCache]: Analyzing trace with hash -1746544585, now seen corresponding path program 1 times [2023-11-25 00:01:54,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-25 00:01:54,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1950910982] [2023-11-25 00:01:54,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:01:54,280 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 [2023-11-25 00:01:54,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-25 00:01:54,282 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -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) [2023-11-25 00:01:54,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -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 [2023-11-25 00:01:54,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:01:54,478 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-25 00:01:54,480 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:01:54,490 INFO L378 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 [2023-11-25 00:01:54,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:01:54,536 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:01:54,537 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-25 00:01:54,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1950910982] [2023-11-25 00:01:54,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1950910982] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:01:54,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:01:54,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-25 00:01:54,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746552488] [2023-11-25 00:01:54,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:01:54,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-25 00:01:54,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-25 00:01:54,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-25 00:01:54,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-25 00:01:54,540 INFO L87 Difference]: Start difference. First operand 3665 states and 9971 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:01:55,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:01:55,560 INFO L93 Difference]: Finished difference Result 2836 states and 7465 transitions. [2023-11-25 00:01:55,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-25 00:01:55,560 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-11-25 00:01:55,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:01:55,580 INFO L225 Difference]: With dead ends: 2836 [2023-11-25 00:01:55,580 INFO L226 Difference]: Without dead ends: 2832 [2023-11-25 00:01:55,581 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-25 00:01:55,581 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 179 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-25 00:01:55,582 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 151 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-25 00:01:55,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2832 states. [2023-11-25 00:01:55,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2832 to 2740. [2023-11-25 00:01:55,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2740 states, 2555 states have (on average 2.838747553816047) internal successors, (7253), 2739 states have internal predecessors, (7253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:01:55,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2740 states to 2740 states and 7253 transitions. [2023-11-25 00:01:55,679 INFO L78 Accepts]: Start accepts. Automaton has 2740 states and 7253 transitions. Word has length 9 [2023-11-25 00:01:55,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:01:55,679 INFO L495 AbstractCegarLoop]: Abstraction has 2740 states and 7253 transitions. [2023-11-25 00:01:55,680 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:01:55,680 INFO L276 IsEmpty]: Start isEmpty. Operand 2740 states and 7253 transitions. [2023-11-25 00:01:55,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-25 00:01:55,681 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:01:55,681 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:01:55,690 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -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 [2023-11-25 00:01:55,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-25 00:01:55,891 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr22REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK (and 50 more)] === [2023-11-25 00:01:55,891 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:01:55,891 INFO L85 PathProgramCache]: Analyzing trace with hash -1746398738, now seen corresponding path program 1 times [2023-11-25 00:01:55,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-25 00:01:55,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [59375183] [2023-11-25 00:01:55,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:01:55,892 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 [2023-11-25 00:01:55,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-25 00:01:55,893 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -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) [2023-11-25 00:01:55,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -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 [2023-11-25 00:01:56,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:01:56,056 INFO L262 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-25 00:01:56,058 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:01:56,063 INFO L378 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 [2023-11-25 00:01:56,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:01:56,095 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:01:56,095 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-25 00:01:56,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [59375183] [2023-11-25 00:01:56,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [59375183] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:01:56,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:01:56,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-25 00:01:56,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024980733] [2023-11-25 00:01:56,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:01:56,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:01:56,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-25 00:01:56,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:01:56,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:01:56,098 INFO L87 Difference]: Start difference. First operand 2740 states and 7253 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:01:56,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:01:56,441 INFO L93 Difference]: Finished difference Result 2447 states and 6456 transitions. [2023-11-25 00:01:56,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:01:56,441 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-11-25 00:01:56,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:01:56,451 INFO L225 Difference]: With dead ends: 2447 [2023-11-25 00:01:56,451 INFO L226 Difference]: Without dead ends: 2447 [2023-11-25 00:01:56,451 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:01:56,452 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 64 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-25 00:01:56,452 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 20 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-25 00:01:56,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2447 states. [2023-11-25 00:01:56,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2447 to 2447. [2023-11-25 00:01:56,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2447 states, 2295 states have (on average 2.813071895424837) internal successors, (6456), 2446 states have internal predecessors, (6456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:01:56,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2447 states to 2447 states and 6456 transitions. [2023-11-25 00:01:56,534 INFO L78 Accepts]: Start accepts. Automaton has 2447 states and 6456 transitions. Word has length 9 [2023-11-25 00:01:56,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:01:56,534 INFO L495 AbstractCegarLoop]: Abstraction has 2447 states and 6456 transitions. [2023-11-25 00:01:56,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:01:56,535 INFO L276 IsEmpty]: Start isEmpty. Operand 2447 states and 6456 transitions. [2023-11-25 00:01:56,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-25 00:01:56,535 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:01:56,536 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:01:56,545 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-11-25 00:01:56,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-25 00:01:56,740 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr23REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK (and 50 more)] === [2023-11-25 00:01:56,741 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:01:56,741 INFO L85 PathProgramCache]: Analyzing trace with hash -1746398737, now seen corresponding path program 1 times [2023-11-25 00:01:56,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-25 00:01:56,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2086478213] [2023-11-25 00:01:56,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:01:56,742 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 [2023-11-25 00:01:56,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-25 00:01:56,743 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -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) [2023-11-25 00:01:56,744 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -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 [2023-11-25 00:01:56,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:01:56,917 INFO L262 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-25 00:01:56,919 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:01:56,926 INFO L378 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 [2023-11-25 00:01:56,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:01:56,975 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:01:56,975 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-25 00:01:56,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2086478213] [2023-11-25 00:01:56,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2086478213] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:01:56,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:01:56,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-25 00:01:56,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700815730] [2023-11-25 00:01:56,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:01:56,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:01:56,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-25 00:01:56,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:01:56,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:01:56,978 INFO L87 Difference]: Start difference. First operand 2447 states and 6456 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:01:57,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:01:57,358 INFO L93 Difference]: Finished difference Result 2174 states and 5679 transitions. [2023-11-25 00:01:57,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:01:57,359 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-11-25 00:01:57,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:01:57,365 INFO L225 Difference]: With dead ends: 2174 [2023-11-25 00:01:57,366 INFO L226 Difference]: Without dead ends: 2174 [2023-11-25 00:01:57,366 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:01:57,367 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 36 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-25 00:01:57,367 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 44 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-25 00:01:57,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2174 states. [2023-11-25 00:01:57,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2174 to 2166. [2023-11-25 00:01:57,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2166 states, 2042 states have (on average 2.7776689520078355) internal successors, (5672), 2165 states have internal predecessors, (5672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:01:57,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2166 states to 2166 states and 5672 transitions. [2023-11-25 00:01:57,440 INFO L78 Accepts]: Start accepts. Automaton has 2166 states and 5672 transitions. Word has length 9 [2023-11-25 00:01:57,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:01:57,441 INFO L495 AbstractCegarLoop]: Abstraction has 2166 states and 5672 transitions. [2023-11-25 00:01:57,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:01:57,441 INFO L276 IsEmpty]: Start isEmpty. Operand 2166 states and 5672 transitions. [2023-11-25 00:01:57,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-25 00:01:57,442 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:01:57,442 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:01:57,456 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -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 [2023-11-25 00:01:57,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-25 00:01:57,656 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting my_callbackErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK (and 50 more)] === [2023-11-25 00:01:57,657 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:01:57,657 INFO L85 PathProgramCache]: Analyzing trace with hash -2107865261, now seen corresponding path program 1 times [2023-11-25 00:01:57,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-25 00:01:57,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1173328504] [2023-11-25 00:01:57,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:01:57,658 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 [2023-11-25 00:01:57,658 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-25 00:01:57,659 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -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) [2023-11-25 00:01:57,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -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 [2023-11-25 00:01:57,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:01:57,858 INFO L262 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-25 00:01:57,861 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:01:57,871 INFO L378 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 [2023-11-25 00:01:57,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:01:57,917 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:01:57,917 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-25 00:01:57,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1173328504] [2023-11-25 00:01:57,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1173328504] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:01:57,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:01:57,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-25 00:01:57,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816195356] [2023-11-25 00:01:57,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:01:57,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-25 00:01:57,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-25 00:01:57,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-25 00:01:57,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-25 00:01:57,920 INFO L87 Difference]: Start difference. First operand 2166 states and 5672 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:01:58,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:01:58,909 INFO L93 Difference]: Finished difference Result 2029 states and 5207 transitions. [2023-11-25 00:01:58,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-25 00:01:58,910 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-11-25 00:01:58,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:01:58,917 INFO L225 Difference]: With dead ends: 2029 [2023-11-25 00:01:58,917 INFO L226 Difference]: Without dead ends: 2029 [2023-11-25 00:01:58,918 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-25 00:01:58,918 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 139 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-25 00:01:58,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 129 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-25 00:01:58,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2029 states. [2023-11-25 00:01:58,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2029 to 1861. [2023-11-25 00:01:58,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1861 states, 1761 states have (on average 2.779670641680863) internal successors, (4895), 1860 states have internal predecessors, (4895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:01:58,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1861 states to 1861 states and 4895 transitions. [2023-11-25 00:01:58,975 INFO L78 Accepts]: Start accepts. Automaton has 1861 states and 4895 transitions. Word has length 12 [2023-11-25 00:01:58,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:01:58,976 INFO L495 AbstractCegarLoop]: Abstraction has 1861 states and 4895 transitions. [2023-11-25 00:01:58,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:01:58,976 INFO L276 IsEmpty]: Start isEmpty. Operand 1861 states and 4895 transitions. [2023-11-25 00:01:58,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-25 00:01:58,977 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:01:58,977 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:01:58,992 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -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)] Forceful destruction successful, exit code 0 [2023-11-25 00:01:59,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-25 00:01:59,182 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK (and 50 more)] === [2023-11-25 00:01:59,183 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:01:59,183 INFO L85 PathProgramCache]: Analyzing trace with hash -2107865260, now seen corresponding path program 1 times [2023-11-25 00:01:59,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-25 00:01:59,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [127729577] [2023-11-25 00:01:59,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:01:59,184 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 [2023-11-25 00:01:59,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-25 00:01:59,185 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -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) [2023-11-25 00:01:59,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -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 [2023-11-25 00:01:59,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:01:59,362 INFO L262 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-25 00:01:59,364 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:01:59,377 INFO L378 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 [2023-11-25 00:01:59,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:01:59,485 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:01:59,485 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-25 00:01:59,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [127729577] [2023-11-25 00:01:59,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [127729577] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:01:59,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:01:59,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-25 00:01:59,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814033280] [2023-11-25 00:01:59,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:01:59,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-25 00:01:59,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-25 00:01:59,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-25 00:01:59,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-25 00:01:59,488 INFO L87 Difference]: Start difference. First operand 1861 states and 4895 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:02:00,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:02:00,497 INFO L93 Difference]: Finished difference Result 1405 states and 3520 transitions. [2023-11-25 00:02:00,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-25 00:02:00,498 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-11-25 00:02:00,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:02:00,501 INFO L225 Difference]: With dead ends: 1405 [2023-11-25 00:02:00,501 INFO L226 Difference]: Without dead ends: 1397 [2023-11-25 00:02:00,502 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-25 00:02:00,502 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 105 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-25 00:02:00,502 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 129 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 312 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-25 00:02:00,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1397 states. [2023-11-25 00:02:00,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1397 to 1397. [2023-11-25 00:02:00,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1397 states, 1327 states have (on average 2.6284853051996984) internal successors, (3488), 1396 states have internal predecessors, (3488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:02:00,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1397 states to 1397 states and 3488 transitions. [2023-11-25 00:02:00,558 INFO L78 Accepts]: Start accepts. Automaton has 1397 states and 3488 transitions. Word has length 12 [2023-11-25 00:02:00,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:02:00,559 INFO L495 AbstractCegarLoop]: Abstraction has 1397 states and 3488 transitions. [2023-11-25 00:02:00,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:02:00,559 INFO L276 IsEmpty]: Start isEmpty. Operand 1397 states and 3488 transitions. [2023-11-25 00:02:00,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-25 00:02:00,560 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:02:00,561 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:02:00,567 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2023-11-25 00:02:00,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-25 00:02:00,767 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK (and 50 more)] === [2023-11-25 00:02:00,767 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:02:00,767 INFO L85 PathProgramCache]: Analyzing trace with hash -901696396, now seen corresponding path program 1 times [2023-11-25 00:02:00,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-25 00:02:00,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [324423461] [2023-11-25 00:02:00,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:02:00,768 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 [2023-11-25 00:02:00,768 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-25 00:02:00,769 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -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) [2023-11-25 00:02:00,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -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 [2023-11-25 00:02:00,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:02:01,005 INFO L262 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-25 00:02:01,008 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:02:01,014 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-25 00:02:01,014 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-25 00:02:01,015 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-25 00:02:01,020 INFO L378 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 32 treesize of output 41 [2023-11-25 00:02:01,099 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-25 00:02:01,099 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 88 treesize of output 63 [2023-11-25 00:02:01,224 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-25 00:02:01,224 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 131 treesize of output 53 [2023-11-25 00:02:01,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:02:01,249 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:02:01,249 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-25 00:02:01,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [324423461] [2023-11-25 00:02:01,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [324423461] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:02:01,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:02:01,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-25 00:02:01,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602228407] [2023-11-25 00:02:01,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:02:01,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-25 00:02:01,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-25 00:02:01,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-25 00:02:01,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-25 00:02:01,251 INFO L87 Difference]: Start difference. First operand 1397 states and 3488 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:02:03,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:02:03,902 INFO L93 Difference]: Finished difference Result 1766 states and 4456 transitions. [2023-11-25 00:02:03,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-25 00:02:03,904 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2023-11-25 00:02:03,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:02:03,908 INFO L225 Difference]: With dead ends: 1766 [2023-11-25 00:02:03,908 INFO L226 Difference]: Without dead ends: 1766 [2023-11-25 00:02:03,909 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-25 00:02:03,909 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 51 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-11-25 00:02:03,910 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 72 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-11-25 00:02:03,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1766 states. [2023-11-25 00:02:03,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1766 to 1478. [2023-11-25 00:02:03,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1478 states, 1409 states have (on average 2.62597586941093) internal successors, (3700), 1477 states have internal predecessors, (3700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:02:03,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1478 states to 1478 states and 3700 transitions. [2023-11-25 00:02:03,952 INFO L78 Accepts]: Start accepts. Automaton has 1478 states and 3700 transitions. Word has length 14 [2023-11-25 00:02:03,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:02:03,953 INFO L495 AbstractCegarLoop]: Abstraction has 1478 states and 3700 transitions. [2023-11-25 00:02:03,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:02:03,953 INFO L276 IsEmpty]: Start isEmpty. Operand 1478 states and 3700 transitions. [2023-11-25 00:02:03,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-25 00:02:03,954 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:02:03,954 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:02:03,972 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2023-11-25 00:02:04,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-25 00:02:04,161 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK (and 50 more)] === [2023-11-25 00:02:04,161 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:02:04,162 INFO L85 PathProgramCache]: Analyzing trace with hash 1256156237, now seen corresponding path program 1 times [2023-11-25 00:02:04,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-25 00:02:04,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1700273796] [2023-11-25 00:02:04,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:02:04,163 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 [2023-11-25 00:02:04,163 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-25 00:02:04,164 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -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) [2023-11-25 00:02:04,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -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 [2023-11-25 00:02:04,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:02:04,439 INFO L262 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-25 00:02:04,441 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:02:04,456 INFO L378 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 [2023-11-25 00:02:04,465 INFO L378 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 [2023-11-25 00:02:04,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-25 00:02:04,658 INFO L378 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 14 treesize of output 9 [2023-11-25 00:02:04,670 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-25 00:02:04,670 INFO L378 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 [2023-11-25 00:02:04,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:02:04,691 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:02:04,691 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-25 00:02:04,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1700273796] [2023-11-25 00:02:04,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1700273796] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:02:04,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:02:04,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-25 00:02:04,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203880380] [2023-11-25 00:02:04,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:02:04,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-25 00:02:04,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-25 00:02:04,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-25 00:02:04,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-25 00:02:04,693 INFO L87 Difference]: Start difference. First operand 1478 states and 3700 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:02:06,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:02:06,157 INFO L93 Difference]: Finished difference Result 1745 states and 4316 transitions. [2023-11-25 00:02:06,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-25 00:02:06,159 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2023-11-25 00:02:06,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:02:06,164 INFO L225 Difference]: With dead ends: 1745 [2023-11-25 00:02:06,164 INFO L226 Difference]: Without dead ends: 1745 [2023-11-25 00:02:06,164 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-11-25 00:02:06,165 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 171 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-25 00:02:06,165 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 113 Invalid, 455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 448 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-25 00:02:06,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1745 states. [2023-11-25 00:02:06,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1745 to 1409. [2023-11-25 00:02:06,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1409 states, 1358 states have (on average 2.6075110456553756) internal successors, (3541), 1408 states have internal predecessors, (3541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:02:06,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1409 states to 1409 states and 3541 transitions. [2023-11-25 00:02:06,205 INFO L78 Accepts]: Start accepts. Automaton has 1409 states and 3541 transitions. Word has length 15 [2023-11-25 00:02:06,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:02:06,205 INFO L495 AbstractCegarLoop]: Abstraction has 1409 states and 3541 transitions. [2023-11-25 00:02:06,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:02:06,206 INFO L276 IsEmpty]: Start isEmpty. Operand 1409 states and 3541 transitions. [2023-11-25 00:02:06,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-25 00:02:06,209 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:02:06,209 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:02:06,225 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -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 [2023-11-25 00:02:06,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-25 00:02:06,416 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK (and 50 more)] === [2023-11-25 00:02:06,416 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:02:06,416 INFO L85 PathProgramCache]: Analyzing trace with hash 1254348895, now seen corresponding path program 1 times [2023-11-25 00:02:06,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-25 00:02:06,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1713139589] [2023-11-25 00:02:06,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:02:06,417 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 [2023-11-25 00:02:06,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-25 00:02:06,418 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -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) [2023-11-25 00:02:06,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -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 [2023-11-25 00:02:06,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:02:06,733 INFO L262 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-25 00:02:06,736 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:02:06,747 INFO L378 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 [2023-11-25 00:02:06,755 INFO L378 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 [2023-11-25 00:02:06,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-25 00:02:06,883 INFO L378 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 14 treesize of output 9 [2023-11-25 00:02:06,894 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-25 00:02:06,895 INFO L378 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 [2023-11-25 00:02:06,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:02:06,934 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:02:06,934 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-25 00:02:06,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1713139589] [2023-11-25 00:02:06,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1713139589] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:02:06,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:02:06,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-25 00:02:06,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745977925] [2023-11-25 00:02:06,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:02:06,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-25 00:02:06,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-25 00:02:06,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-25 00:02:06,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-25 00:02:06,936 INFO L87 Difference]: Start difference. First operand 1409 states and 3541 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:02:08,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:02:08,152 INFO L93 Difference]: Finished difference Result 1544 states and 3768 transitions. [2023-11-25 00:02:08,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-25 00:02:08,152 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2023-11-25 00:02:08,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:02:08,157 INFO L225 Difference]: With dead ends: 1544 [2023-11-25 00:02:08,157 INFO L226 Difference]: Without dead ends: 1544 [2023-11-25 00:02:08,158 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-11-25 00:02:08,158 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 257 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-25 00:02:08,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 110 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-25 00:02:08,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1544 states. [2023-11-25 00:02:08,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1544 to 1445. [2023-11-25 00:02:08,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1445 states, 1394 states have (on average 2.6004304160688667) internal successors, (3625), 1444 states have internal predecessors, (3625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:02:08,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1445 states to 1445 states and 3625 transitions. [2023-11-25 00:02:08,193 INFO L78 Accepts]: Start accepts. Automaton has 1445 states and 3625 transitions. Word has length 15 [2023-11-25 00:02:08,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:02:08,193 INFO L495 AbstractCegarLoop]: Abstraction has 1445 states and 3625 transitions. [2023-11-25 00:02:08,194 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:02:08,194 INFO L276 IsEmpty]: Start isEmpty. Operand 1445 states and 3625 transitions. [2023-11-25 00:02:08,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-25 00:02:08,195 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:02:08,195 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:02:08,203 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -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 [2023-11-25 00:02:08,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-25 00:02:08,402 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK (and 50 more)] === [2023-11-25 00:02:08,402 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:02:08,402 INFO L85 PathProgramCache]: Analyzing trace with hash 1254387025, now seen corresponding path program 2 times [2023-11-25 00:02:08,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-25 00:02:08,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [524624685] [2023-11-25 00:02:08,403 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-25 00:02:08,403 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 [2023-11-25 00:02:08,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-25 00:02:08,405 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -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) [2023-11-25 00:02:08,406 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -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 [2023-11-25 00:02:08,713 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-25 00:02:08,713 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-25 00:02:08,726 INFO L262 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-25 00:02:08,729 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:02:08,747 INFO L378 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 [2023-11-25 00:02:08,753 INFO L378 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 [2023-11-25 00:02:08,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-25 00:02:08,927 INFO L378 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 14 treesize of output 9 [2023-11-25 00:02:08,942 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-25 00:02:08,942 INFO L378 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 [2023-11-25 00:02:08,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:02:08,960 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:02:08,961 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-25 00:02:08,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [524624685] [2023-11-25 00:02:08,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [524624685] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:02:08,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:02:08,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-25 00:02:08,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729877592] [2023-11-25 00:02:08,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:02:08,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-25 00:02:08,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-25 00:02:08,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-25 00:02:08,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-25 00:02:08,963 INFO L87 Difference]: Start difference. First operand 1445 states and 3625 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:02:10,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:02:10,229 INFO L93 Difference]: Finished difference Result 1745 states and 4316 transitions. [2023-11-25 00:02:10,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-25 00:02:10,229 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2023-11-25 00:02:10,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:02:10,234 INFO L225 Difference]: With dead ends: 1745 [2023-11-25 00:02:10,234 INFO L226 Difference]: Without dead ends: 1745 [2023-11-25 00:02:10,235 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-11-25 00:02:10,235 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 167 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-25 00:02:10,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 117 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-25 00:02:10,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1745 states. [2023-11-25 00:02:10,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1745 to 1373. [2023-11-25 00:02:10,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1373 states, 1325 states have (on average 2.6090566037735847) internal successors, (3457), 1372 states have internal predecessors, (3457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:02:10,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1373 states to 1373 states and 3457 transitions. [2023-11-25 00:02:10,286 INFO L78 Accepts]: Start accepts. Automaton has 1373 states and 3457 transitions. Word has length 15 [2023-11-25 00:02:10,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:02:10,287 INFO L495 AbstractCegarLoop]: Abstraction has 1373 states and 3457 transitions. [2023-11-25 00:02:10,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:02:10,287 INFO L276 IsEmpty]: Start isEmpty. Operand 1373 states and 3457 transitions. [2023-11-25 00:02:10,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-25 00:02:10,288 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:02:10,288 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:02:10,300 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -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)] Forceful destruction successful, exit code 0 [2023-11-25 00:02:10,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-25 00:02:10,502 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK (and 50 more)] === [2023-11-25 00:02:10,503 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:02:10,504 INFO L85 PathProgramCache]: Analyzing trace with hash -1670641725, now seen corresponding path program 1 times [2023-11-25 00:02:10,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-25 00:02:10,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [635404239] [2023-11-25 00:02:10,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:02:10,505 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 [2023-11-25 00:02:10,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-25 00:02:10,506 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -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) [2023-11-25 00:02:10,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -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 [2023-11-25 00:02:10,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:02:10,790 INFO L262 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-25 00:02:10,795 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:02:10,800 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-25 00:02:10,803 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-25 00:02:10,804 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-25 00:02:10,807 INFO L378 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 32 treesize of output 41 [2023-11-25 00:02:10,954 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-25 00:02:10,955 INFO L378 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 121 treesize of output 49 [2023-11-25 00:02:10,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:02:10,972 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:02:10,972 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-25 00:02:10,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [635404239] [2023-11-25 00:02:10,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [635404239] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:02:10,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:02:10,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-25 00:02:10,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795612920] [2023-11-25 00:02:10,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:02:10,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-25 00:02:10,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-25 00:02:10,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-25 00:02:10,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-25 00:02:10,975 INFO L87 Difference]: Start difference. First operand 1373 states and 3457 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:02:12,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:02:12,494 INFO L93 Difference]: Finished difference Result 1742 states and 4426 transitions. [2023-11-25 00:02:12,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-25 00:02:12,495 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2023-11-25 00:02:12,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:02:12,499 INFO L225 Difference]: With dead ends: 1742 [2023-11-25 00:02:12,499 INFO L226 Difference]: Without dead ends: 1742 [2023-11-25 00:02:12,499 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-25 00:02:12,500 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 34 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-25 00:02:12,500 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 75 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-25 00:02:12,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1742 states. [2023-11-25 00:02:12,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1742 to 1550. [2023-11-25 00:02:12,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1550 states, 1503 states have (on average 2.6307385229540916) internal successors, (3954), 1549 states have internal predecessors, (3954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:02:12,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1550 states to 1550 states and 3954 transitions. [2023-11-25 00:02:12,541 INFO L78 Accepts]: Start accepts. Automaton has 1550 states and 3954 transitions. Word has length 17 [2023-11-25 00:02:12,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:02:12,542 INFO L495 AbstractCegarLoop]: Abstraction has 1550 states and 3954 transitions. [2023-11-25 00:02:12,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:02:12,542 INFO L276 IsEmpty]: Start isEmpty. Operand 1550 states and 3954 transitions. [2023-11-25 00:02:12,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-25 00:02:12,543 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:02:12,543 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:02:12,550 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Ended with exit code 0 [2023-11-25 00:02:12,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-25 00:02:12,750 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK (and 50 more)] === [2023-11-25 00:02:12,750 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:02:12,750 INFO L85 PathProgramCache]: Analyzing trace with hash -250306520, now seen corresponding path program 1 times [2023-11-25 00:02:12,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-25 00:02:12,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1396380863] [2023-11-25 00:02:12,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:02:12,751 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 [2023-11-25 00:02:12,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-25 00:02:12,752 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -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) [2023-11-25 00:02:12,755 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -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 [2023-11-25 00:02:13,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:02:13,101 INFO L262 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-25 00:02:13,102 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:02:13,206 WARN L876 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#data~1#1.base_85| (_ BitVec 32))) (and (= (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#data~1#1.base_85|) (_ bv0 1)) (= (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#data~1#1.base_85| (_ bv0 1)) |c_#valid|))) is different from true [2023-11-25 00:02:13,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:02:13,213 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:02:13,214 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-25 00:02:13,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1396380863] [2023-11-25 00:02:13,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1396380863] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:02:13,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:02:13,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-25 00:02:13,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331757639] [2023-11-25 00:02:13,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:02:13,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-25 00:02:13,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-25 00:02:13,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-25 00:02:13,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=8, Unknown=1, NotChecked=4, Total=20 [2023-11-25 00:02:13,216 INFO L87 Difference]: Start difference. First operand 1550 states and 3954 transitions. Second operand has 5 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:02:13,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:02:13,911 INFO L93 Difference]: Finished difference Result 1487 states and 3798 transitions. [2023-11-25 00:02:13,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-25 00:02:13,912 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2023-11-25 00:02:13,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:02:13,915 INFO L225 Difference]: With dead ends: 1487 [2023-11-25 00:02:13,915 INFO L226 Difference]: Without dead ends: 1398 [2023-11-25 00:02:13,915 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=13, Unknown=1, NotChecked=6, Total=30 [2023-11-25 00:02:13,916 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 57 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 124 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-25 00:02:13,916 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 61 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 170 Invalid, 0 Unknown, 124 Unchecked, 0.6s Time] [2023-11-25 00:02:13,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1398 states. [2023-11-25 00:02:13,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1398 to 1352. [2023-11-25 00:02:13,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1352 states, 1321 states have (on average 2.566994700984103) internal successors, (3391), 1351 states have internal predecessors, (3391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:02:13,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1352 states to 1352 states and 3391 transitions. [2023-11-25 00:02:13,948 INFO L78 Accepts]: Start accepts. Automaton has 1352 states and 3391 transitions. Word has length 18 [2023-11-25 00:02:13,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:02:13,949 INFO L495 AbstractCegarLoop]: Abstraction has 1352 states and 3391 transitions. [2023-11-25 00:02:13,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:02:13,949 INFO L276 IsEmpty]: Start isEmpty. Operand 1352 states and 3391 transitions. [2023-11-25 00:02:13,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-25 00:02:13,951 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:02:13,951 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] [2023-11-25 00:02:13,962 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -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 [2023-11-25 00:02:14,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-25 00:02:14,158 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK (and 50 more)] === [2023-11-25 00:02:14,158 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:02:14,158 INFO L85 PathProgramCache]: Analyzing trace with hash -1936736458, now seen corresponding path program 1 times [2023-11-25 00:02:14,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-25 00:02:14,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [493811103] [2023-11-25 00:02:14,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:02:14,161 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 [2023-11-25 00:02:14,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-25 00:02:14,162 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -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) [2023-11-25 00:02:14,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -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 [2023-11-25 00:02:14,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:02:14,445 INFO L262 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-25 00:02:14,447 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:02:14,452 INFO L378 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 [2023-11-25 00:02:14,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:02:14,478 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:02:14,479 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-25 00:02:14,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [493811103] [2023-11-25 00:02:14,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [493811103] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:02:14,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:02:14,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-25 00:02:14,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846757013] [2023-11-25 00:02:14,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:02:14,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:02:14,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-25 00:02:14,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:02:14,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:02:14,480 INFO L87 Difference]: Start difference. First operand 1352 states and 3391 transitions. Second operand has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:02:14,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:02:14,832 INFO L93 Difference]: Finished difference Result 1345 states and 3379 transitions. [2023-11-25 00:02:14,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:02:14,833 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2023-11-25 00:02:14,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:02:14,835 INFO L225 Difference]: With dead ends: 1345 [2023-11-25 00:02:14,835 INFO L226 Difference]: Without dead ends: 1345 [2023-11-25 00:02:14,836 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:02:14,836 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 10 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-25 00:02:14,837 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 47 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-25 00:02:14,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1345 states. [2023-11-25 00:02:14,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1345 to 1345. [2023-11-25 00:02:14,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1345 states, 1316 states have (on average 2.567629179331307) internal successors, (3379), 1344 states have internal predecessors, (3379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:02:14,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1345 states to 1345 states and 3379 transitions. [2023-11-25 00:02:14,868 INFO L78 Accepts]: Start accepts. Automaton has 1345 states and 3379 transitions. Word has length 21 [2023-11-25 00:02:14,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:02:14,869 INFO L495 AbstractCegarLoop]: Abstraction has 1345 states and 3379 transitions. [2023-11-25 00:02:14,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:02:14,869 INFO L276 IsEmpty]: Start isEmpty. Operand 1345 states and 3379 transitions. [2023-11-25 00:02:14,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-25 00:02:14,871 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:02:14,871 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] [2023-11-25 00:02:14,878 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -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)] Forceful destruction successful, exit code 0 [2023-11-25 00:02:15,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-25 00:02:15,077 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK (and 50 more)] === [2023-11-25 00:02:15,078 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:02:15,078 INFO L85 PathProgramCache]: Analyzing trace with hash -1936736457, now seen corresponding path program 1 times [2023-11-25 00:02:15,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-25 00:02:15,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [328566246] [2023-11-25 00:02:15,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:02:15,079 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 [2023-11-25 00:02:15,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-25 00:02:15,081 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -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) [2023-11-25 00:02:15,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -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 [2023-11-25 00:02:15,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:02:15,396 INFO L262 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-25 00:02:15,398 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:02:15,407 INFO L378 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 [2023-11-25 00:02:15,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:02:15,463 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:02:15,463 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-25 00:02:15,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [328566246] [2023-11-25 00:02:15,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [328566246] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:02:15,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:02:15,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-25 00:02:15,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667192406] [2023-11-25 00:02:15,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:02:15,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:02:15,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-25 00:02:15,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:02:15,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:02:15,466 INFO L87 Difference]: Start difference. First operand 1345 states and 3379 transitions. Second operand has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:02:15,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:02:15,853 INFO L93 Difference]: Finished difference Result 1338 states and 3367 transitions. [2023-11-25 00:02:15,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:02:15,854 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2023-11-25 00:02:15,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:02:15,857 INFO L225 Difference]: With dead ends: 1338 [2023-11-25 00:02:15,857 INFO L226 Difference]: Without dead ends: 1338 [2023-11-25 00:02:15,857 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:02:15,858 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 8 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-25 00:02:15,859 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 43 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-25 00:02:15,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1338 states. [2023-11-25 00:02:15,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1338 to 1338. [2023-11-25 00:02:15,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1338 states, 1311 states have (on average 2.568268497330282) internal successors, (3367), 1337 states have internal predecessors, (3367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:02:15,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1338 states to 1338 states and 3367 transitions. [2023-11-25 00:02:15,891 INFO L78 Accepts]: Start accepts. Automaton has 1338 states and 3367 transitions. Word has length 21 [2023-11-25 00:02:15,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:02:15,892 INFO L495 AbstractCegarLoop]: Abstraction has 1338 states and 3367 transitions. [2023-11-25 00:02:15,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:02:15,892 INFO L276 IsEmpty]: Start isEmpty. Operand 1338 states and 3367 transitions. [2023-11-25 00:02:15,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-25 00:02:15,897 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:02:15,897 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] [2023-11-25 00:02:15,904 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2023-11-25 00:02:16,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-25 00:02:16,104 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK (and 50 more)] === [2023-11-25 00:02:16,105 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:02:16,105 INFO L85 PathProgramCache]: Analyzing trace with hash 39458257, now seen corresponding path program 1 times [2023-11-25 00:02:16,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-25 00:02:16,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1627139807] [2023-11-25 00:02:16,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:02:16,105 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 [2023-11-25 00:02:16,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-25 00:02:16,106 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -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) [2023-11-25 00:02:16,108 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -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 [2023-11-25 00:02:16,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:02:16,434 INFO L262 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-25 00:02:16,435 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:02:16,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:02:16,451 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:02:16,451 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-25 00:02:16,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1627139807] [2023-11-25 00:02:16,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1627139807] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:02:16,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:02:16,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-25 00:02:16,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371784292] [2023-11-25 00:02:16,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:02:16,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-25 00:02:16,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-25 00:02:16,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-25 00:02:16,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-25 00:02:16,454 INFO L87 Difference]: Start difference. First operand 1338 states and 3367 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:02:16,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:02:16,826 INFO L93 Difference]: Finished difference Result 255 states and 549 transitions. [2023-11-25 00:02:16,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-25 00:02:16,827 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2023-11-25 00:02:16,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:02:16,827 INFO L225 Difference]: With dead ends: 255 [2023-11-25 00:02:16,827 INFO L226 Difference]: Without dead ends: 255 [2023-11-25 00:02:16,827 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-25 00:02:16,828 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 91 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-25 00:02:16,828 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 32 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-25 00:02:16,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2023-11-25 00:02:16,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 255. [2023-11-25 00:02:16,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 245 states have (on average 2.240816326530612) internal successors, (549), 254 states have internal predecessors, (549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:02:16,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 549 transitions. [2023-11-25 00:02:16,832 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 549 transitions. Word has length 22 [2023-11-25 00:02:16,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:02:16,833 INFO L495 AbstractCegarLoop]: Abstraction has 255 states and 549 transitions. [2023-11-25 00:02:16,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:02:16,833 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 549 transitions. [2023-11-25 00:02:16,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-25 00:02:16,834 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:02:16,834 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] [2023-11-25 00:02:16,839 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -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 [2023-11-25 00:02:17,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-25 00:02:17,035 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK (and 50 more)] === [2023-11-25 00:02:17,035 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:02:17,035 INFO L85 PathProgramCache]: Analyzing trace with hash 1213057523, now seen corresponding path program 1 times [2023-11-25 00:02:17,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-25 00:02:17,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [331339382] [2023-11-25 00:02:17,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:02:17,036 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 [2023-11-25 00:02:17,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-25 00:02:17,037 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -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) [2023-11-25 00:02:17,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -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 [2023-11-25 00:02:17,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:02:17,370 INFO L262 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-25 00:02:17,371 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:02:17,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:02:17,673 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:02:17,673 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-25 00:02:17,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [331339382] [2023-11-25 00:02:17,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [331339382] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:02:17,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:02:17,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-25 00:02:17,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043151814] [2023-11-25 00:02:17,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:02:17,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-25 00:02:17,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-25 00:02:17,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-25 00:02:17,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-25 00:02:17,675 INFO L87 Difference]: Start difference. First operand 255 states and 549 transitions. Second operand has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:02:18,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:02:18,524 INFO L93 Difference]: Finished difference Result 305 states and 642 transitions. [2023-11-25 00:02:18,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-25 00:02:18,525 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2023-11-25 00:02:18,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:02:18,526 INFO L225 Difference]: With dead ends: 305 [2023-11-25 00:02:18,526 INFO L226 Difference]: Without dead ends: 305 [2023-11-25 00:02:18,526 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2023-11-25 00:02:18,526 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 176 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-25 00:02:18,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 39 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-25 00:02:18,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2023-11-25 00:02:18,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 286. [2023-11-25 00:02:18,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 280 states have (on average 2.164285714285714) internal successors, (606), 285 states have internal predecessors, (606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:02:18,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 606 transitions. [2023-11-25 00:02:18,532 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 606 transitions. Word has length 30 [2023-11-25 00:02:18,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:02:18,533 INFO L495 AbstractCegarLoop]: Abstraction has 286 states and 606 transitions. [2023-11-25 00:02:18,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:02:18,533 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 606 transitions. [2023-11-25 00:02:18,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-25 00:02:18,534 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:02:18,534 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] [2023-11-25 00:02:18,541 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -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)] Forceful destruction successful, exit code 0 [2023-11-25 00:02:18,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-25 00:02:18,741 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK (and 50 more)] === [2023-11-25 00:02:18,741 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:02:18,742 INFO L85 PathProgramCache]: Analyzing trace with hash 1213057522, now seen corresponding path program 1 times [2023-11-25 00:02:18,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-25 00:02:18,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [271801429] [2023-11-25 00:02:18,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:02:18,742 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 [2023-11-25 00:02:18,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-25 00:02:18,743 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -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) [2023-11-25 00:02:18,745 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -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 [2023-11-25 00:02:19,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:02:19,228 INFO L262 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-25 00:02:19,230 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:02:19,236 INFO L378 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 [2023-11-25 00:02:19,375 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-25 00:02:19,375 INFO L378 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 [2023-11-25 00:02:19,496 INFO L378 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 13 [2023-11-25 00:02:19,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:02:19,510 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:02:19,511 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-25 00:02:19,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [271801429] [2023-11-25 00:02:19,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [271801429] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:02:19,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:02:19,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-25 00:02:19,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088505691] [2023-11-25 00:02:19,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:02:19,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-25 00:02:19,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-25 00:02:19,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-25 00:02:19,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-25 00:02:19,512 INFO L87 Difference]: Start difference. First operand 286 states and 606 transitions. Second operand has 8 states, 7 states have (on average 4.285714285714286) internal successors, (30), 8 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:02:20,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:02:20,338 INFO L93 Difference]: Finished difference Result 391 states and 814 transitions. [2023-11-25 00:02:20,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-25 00:02:20,338 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.285714285714286) internal successors, (30), 8 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2023-11-25 00:02:20,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:02:20,339 INFO L225 Difference]: With dead ends: 391 [2023-11-25 00:02:20,339 INFO L226 Difference]: Without dead ends: 391 [2023-11-25 00:02:20,339 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2023-11-25 00:02:20,340 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 105 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-25 00:02:20,340 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 50 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-25 00:02:20,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2023-11-25 00:02:20,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 285. [2023-11-25 00:02:20,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 280 states have (on average 2.157142857142857) internal successors, (604), 284 states have internal predecessors, (604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:02:20,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 604 transitions. [2023-11-25 00:02:20,345 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 604 transitions. Word has length 30 [2023-11-25 00:02:20,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:02:20,345 INFO L495 AbstractCegarLoop]: Abstraction has 285 states and 604 transitions. [2023-11-25 00:02:20,345 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.285714285714286) internal successors, (30), 8 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:02:20,345 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 604 transitions. [2023-11-25 00:02:20,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-25 00:02:20,346 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:02:20,346 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] [2023-11-25 00:02:20,355 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2023-11-25 00:02:20,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-25 00:02:20,555 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK (and 50 more)] === [2023-11-25 00:02:20,555 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:02:20,555 INFO L85 PathProgramCache]: Analyzing trace with hash -734281731, now seen corresponding path program 2 times [2023-11-25 00:02:20,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-25 00:02:20,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1875949331] [2023-11-25 00:02:20,556 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-25 00:02:20,556 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 [2023-11-25 00:02:20,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-25 00:02:20,557 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -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) [2023-11-25 00:02:20,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -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 [2023-11-25 00:02:20,975 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-25 00:02:20,976 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-25 00:02:20,991 INFO L262 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-25 00:02:20,993 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:02:20,998 INFO L378 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 [2023-11-25 00:02:21,005 INFO L378 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 [2023-11-25 00:02:21,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-25 00:02:21,231 INFO L378 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 14 treesize of output 9 [2023-11-25 00:02:21,243 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-25 00:02:21,243 INFO L378 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 [2023-11-25 00:02:21,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:02:21,289 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:02:21,289 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-25 00:02:21,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1875949331] [2023-11-25 00:02:21,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1875949331] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:02:21,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:02:21,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-25 00:02:21,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946298810] [2023-11-25 00:02:21,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:02:21,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-25 00:02:21,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-25 00:02:21,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-25 00:02:21,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-25 00:02:21,291 INFO L87 Difference]: Start difference. First operand 285 states and 604 transitions. Second operand has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:02:21,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:02:21,487 INFO L93 Difference]: Finished difference Result 283 states and 602 transitions. [2023-11-25 00:02:21,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-25 00:02:21,488 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2023-11-25 00:02:21,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:02:21,488 INFO L225 Difference]: With dead ends: 283 [2023-11-25 00:02:21,489 INFO L226 Difference]: Without dead ends: 283 [2023-11-25 00:02:21,489 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-25 00:02:21,489 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 24 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-25 00:02:21,490 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 13 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-25 00:02:21,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2023-11-25 00:02:21,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 248. [2023-11-25 00:02:21,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 245 states have (on average 2.2122448979591836) internal successors, (542), 247 states have internal predecessors, (542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:02:21,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 542 transitions. [2023-11-25 00:02:21,494 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 542 transitions. Word has length 30 [2023-11-25 00:02:21,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:02:21,495 INFO L495 AbstractCegarLoop]: Abstraction has 248 states and 542 transitions. [2023-11-25 00:02:21,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:02:21,495 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 542 transitions. [2023-11-25 00:02:21,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-25 00:02:21,495 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:02:21,495 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] [2023-11-25 00:02:21,502 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -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)] Ended with exit code 0 [2023-11-25 00:02:21,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-25 00:02:21,696 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK (and 50 more)] === [2023-11-25 00:02:21,696 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:02:21,696 INFO L85 PathProgramCache]: Analyzing trace with hash 342291860, now seen corresponding path program 1 times [2023-11-25 00:02:21,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-25 00:02:21,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [371936863] [2023-11-25 00:02:21,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:02:21,697 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 [2023-11-25 00:02:21,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-25 00:02:21,698 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -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) [2023-11-25 00:02:21,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b6e92-9752-48a6-a0e7-33c4a73d54c7/bin/utaipan-verify-SwPr7d2a91/mathsat -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 [2023-11-25 00:02:22,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:02:22,185 INFO L262 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 42 conjunts are in the unsatisfiable core [2023-11-25 00:02:22,193 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:02:22,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-25 00:02:22,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-25 00:02:22,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-25 00:02:22,566 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-25 00:02:22,567 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-25 00:02:22,568 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 33 [2023-11-25 00:02:22,707 INFO L378 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 65 treesize of output 85