./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test2-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version cf1a7837 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_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test2-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX --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 69d24e9affd7540aafb8052ecd737d7732ca2a63c7e8e16adc4217413d1d99a5 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:47:52,027 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:47:52,156 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2023-11-12 00:47:52,167 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:47:52,169 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:47:52,213 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:47:52,213 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:47:52,214 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:47:52,215 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:47:52,221 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:47:52,221 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:47:52,222 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:47:52,223 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:47:52,225 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:47:52,225 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:47:52,226 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:47:52,226 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:47:52,228 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:47:52,228 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:47:52,229 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:47:52,229 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:47:52,230 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:47:52,231 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 00:47:52,231 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 00:47:52,232 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:47:52,233 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:47:52,233 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:47:52,233 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:47:52,234 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:47:52,234 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-12 00:47:52,236 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-12 00:47:52,236 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-12 00:47:52,236 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:47:52,237 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 00:47:52,237 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 00:47:52,237 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:47:52,237 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:47:52,238 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:47:52,238 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:47:52,238 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:47:52,239 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:47:52,240 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:47:52,240 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:47:52,240 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:47:52,241 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:47:52,241 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:47:52,241 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_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 69d24e9affd7540aafb8052ecd737d7732ca2a63c7e8e16adc4217413d1d99a5 [2023-11-12 00:47:52,518 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:47:52,554 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:47:52,558 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:47:52,559 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:47:52,561 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:47:52,562 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test2-1.i [2023-11-12 00:47:55,729 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:47:56,116 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:47:56,117 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test2-1.i [2023-11-12 00:47:56,137 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/data/836764c4c/8ac9550564264fb5bce3b8e4171c5631/FLAG820ecec84 [2023-11-12 00:47:56,153 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/data/836764c4c/8ac9550564264fb5bce3b8e4171c5631 [2023-11-12 00:47:56,156 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:47:56,158 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:47:56,160 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:47:56,160 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:47:56,176 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:47:56,177 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:47:56" (1/1) ... [2023-11-12 00:47:56,178 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2198bcd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:56, skipping insertion in model container [2023-11-12 00:47:56,179 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:47:56" (1/1) ... [2023-11-12 00:47:56,274 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:47:56,984 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:47:57,005 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) [2023-11-12 00:47:57,007 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6bd466d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:57, skipping insertion in model container [2023-11-12 00:47:57,008 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:47:57,008 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-12 00:47:57,010 INFO L158 Benchmark]: Toolchain (without parser) took 851.47ms. Allocated memory is still 125.8MB. Free memory was 71.5MB in the beginning and 92.2MB in the end (delta: -20.7MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. [2023-11-12 00:47:57,012 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 94.4MB. Free memory is still 49.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:47:57,013 INFO L158 Benchmark]: CACSL2BoogieTranslator took 848.29ms. Allocated memory is still 125.8MB. Free memory was 71.3MB in the beginning and 92.2MB in the end (delta: -20.9MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. [2023-11-12 00:47:57,015 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 94.4MB. Free memory is still 49.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 848.29ms. Allocated memory is still 125.8MB. Free memory was 71.3MB in the beginning and 92.2MB in the end (delta: -20.9MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 815]: 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_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test2-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX --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 69d24e9affd7540aafb8052ecd737d7732ca2a63c7e8e16adc4217413d1d99a5 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:47:59,614 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:47:59,743 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2023-11-12 00:47:59,756 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:47:59,757 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:47:59,815 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:47:59,815 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:47:59,816 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:47:59,817 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:47:59,822 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:47:59,823 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:47:59,823 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:47:59,824 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:47:59,826 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:47:59,826 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:47:59,826 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:47:59,827 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 00:47:59,828 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 00:47:59,829 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:47:59,829 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:47:59,830 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:47:59,830 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:47:59,831 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:47:59,831 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-12 00:47:59,831 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-12 00:47:59,832 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-12 00:47:59,832 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:47:59,833 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 00:47:59,833 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-12 00:47:59,834 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-12 00:47:59,835 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 00:47:59,835 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:47:59,836 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:47:59,836 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:47:59,836 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 00:47:59,836 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:47:59,838 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:47:59,838 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:47:59,838 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:47:59,838 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-12 00:47:59,839 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-12 00:47:59,839 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:47:59,839 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:47:59,839 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_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 69d24e9affd7540aafb8052ecd737d7732ca2a63c7e8e16adc4217413d1d99a5 [2023-11-12 00:48:00,213 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:48:00,239 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:48:00,242 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:48:00,243 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:48:00,244 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:48:00,245 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test2-1.i [2023-11-12 00:48:03,459 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:48:03,831 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:48:03,837 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test2-1.i [2023-11-12 00:48:03,867 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/data/4465ea56b/50363cbabdb04e5db0a64ca0aa9a5266/FLAG175dea656 [2023-11-12 00:48:03,894 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/data/4465ea56b/50363cbabdb04e5db0a64ca0aa9a5266 [2023-11-12 00:48:03,900 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:48:03,901 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:48:03,905 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:48:03,905 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:48:03,911 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:48:03,912 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:48:03" (1/1) ... [2023-11-12 00:48:03,913 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@599f2fa1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:03, skipping insertion in model container [2023-11-12 00:48:03,914 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:48:03" (1/1) ... [2023-11-12 00:48:04,016 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:48:04,687 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:48:04,719 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-12 00:48:04,736 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:48:04,825 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:48:04,830 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:48:04,906 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:48:04,957 WARN L672 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:48:04,966 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:48:04,966 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:04 WrapperNode [2023-11-12 00:48:04,966 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:48:04,968 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:48:04,968 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:48:04,968 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:48:04,976 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:04" (1/1) ... [2023-11-12 00:48:05,011 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:04" (1/1) ... [2023-11-12 00:48:05,100 INFO L138 Inliner]: procedures = 211, calls = 237, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 893 [2023-11-12 00:48:05,100 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:48:05,101 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:48:05,101 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:48:05,101 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:48:05,112 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:04" (1/1) ... [2023-11-12 00:48:05,112 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:04" (1/1) ... [2023-11-12 00:48:05,123 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:04" (1/1) ... [2023-11-12 00:48:05,124 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:04" (1/1) ... [2023-11-12 00:48:05,167 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:04" (1/1) ... [2023-11-12 00:48:05,178 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:04" (1/1) ... [2023-11-12 00:48:05,183 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:04" (1/1) ... [2023-11-12 00:48:05,189 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:04" (1/1) ... [2023-11-12 00:48:05,198 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:48:05,199 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:48:05,200 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:48:05,200 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:48:05,201 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:04" (1/1) ... [2023-11-12 00:48:05,208 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:48:05,224 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:48:05,239 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:48:05,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:48:05,305 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-11-12 00:48:05,306 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-11-12 00:48:05,306 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-12 00:48:05,306 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-12 00:48:05,306 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-12 00:48:05,306 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-12 00:48:05,307 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:48:05,307 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-12 00:48:05,309 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 00:48:05,309 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:48:05,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-12 00:48:05,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-12 00:48:05,310 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-12 00:48:05,310 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-12 00:48:05,310 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 00:48:05,311 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:48:05,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 00:48:05,311 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:48:05,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:48:05,558 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:48:05,560 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:48:05,604 WARN L817 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-12 00:48:10,252 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:48:10,267 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:48:10,267 INFO L302 CfgBuilder]: Removed 54 assume(true) statements. [2023-11-12 00:48:10,271 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:48:10 BoogieIcfgContainer [2023-11-12 00:48:10,271 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:48:10,274 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:48:10,274 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:48:10,278 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:48:10,278 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:48:03" (1/3) ... [2023-11-12 00:48:10,279 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ecc7015 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:48:10, skipping insertion in model container [2023-11-12 00:48:10,279 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:04" (2/3) ... [2023-11-12 00:48:10,280 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ecc7015 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:48:10, skipping insertion in model container [2023-11-12 00:48:10,280 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:48:10" (3/3) ... [2023-11-12 00:48:10,281 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test2-1.i [2023-11-12 00:48:10,302 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:48:10,302 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 430 error locations. [2023-11-12 00:48:10,383 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:48:10,391 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;@12c97212, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:48:10,391 INFO L358 AbstractCegarLoop]: Starting to check reachability of 430 error locations. [2023-11-12 00:48:10,399 INFO L276 IsEmpty]: Start isEmpty. Operand has 891 states, 450 states have (on average 2.1955555555555555) internal successors, (988), 884 states have internal predecessors, (988), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-12 00:48:10,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-12 00:48:10,406 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:48:10,406 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-12 00:48:10,407 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 427 more)] === [2023-11-12 00:48:10,413 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:48:10,414 INFO L85 PathProgramCache]: Analyzing trace with hash 47731, now seen corresponding path program 1 times [2023-11-12 00:48:10,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:48:10,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [820729976] [2023-11-12 00:48:10,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:48:10,429 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 [2023-11-12 00:48:10,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:48:10,431 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/mathsat -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) [2023-11-12 00:48:10,438 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/mathsat -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 [2023-11-12 00:48:10,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:48:10,585 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 00:48:10,591 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:48:10,774 INFO L351 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 [2023-11-12 00:48:10,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:48:10,789 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:48:10,790 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:48:10,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [820729976] [2023-11-12 00:48:10,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [820729976] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:48:10,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:48:10,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:48:10,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976246006] [2023-11-12 00:48:10,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:48:10,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:48:10,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:48:10,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:48:10,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:48:10,838 INFO L87 Difference]: Start difference. First operand has 891 states, 450 states have (on average 2.1955555555555555) internal successors, (988), 884 states have internal predecessors, (988), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10) 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) [2023-11-12 00:48:12,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:48:12,842 INFO L93 Difference]: Finished difference Result 879 states and 935 transitions. [2023-11-12 00:48:12,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:48:12,844 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 [2023-11-12 00:48:12,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:48:12,865 INFO L225 Difference]: With dead ends: 879 [2023-11-12 00:48:12,866 INFO L226 Difference]: Without dead ends: 877 [2023-11-12 00:48:12,867 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 [2023-11-12 00:48:12,871 INFO L413 NwaCegarLoop]: 542 mSDtfsCounter, 808 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 816 SdHoareTripleChecker+Valid, 594 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-12 00:48:12,872 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [816 Valid, 594 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 444 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-12 00:48:12,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 877 states. [2023-11-12 00:48:12,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 877 to 876. [2023-11-12 00:48:12,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 876 states, 452 states have (on average 2.024336283185841) internal successors, (915), 869 states have internal predecessors, (915), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-12 00:48:12,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 876 states to 876 states and 933 transitions. [2023-11-12 00:48:12,960 INFO L78 Accepts]: Start accepts. Automaton has 876 states and 933 transitions. Word has length 3 [2023-11-12 00:48:12,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:48:12,961 INFO L495 AbstractCegarLoop]: Abstraction has 876 states and 933 transitions. [2023-11-12 00:48:12,961 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) [2023-11-12 00:48:12,961 INFO L276 IsEmpty]: Start isEmpty. Operand 876 states and 933 transitions. [2023-11-12 00:48:12,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-12 00:48:12,962 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:48:12,962 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-12 00:48:12,979 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-12 00:48:13,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 00:48:13,173 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 427 more)] === [2023-11-12 00:48:13,174 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:48:13,174 INFO L85 PathProgramCache]: Analyzing trace with hash 47732, now seen corresponding path program 1 times [2023-11-12 00:48:13,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:48:13,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [221804980] [2023-11-12 00:48:13,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:48:13,175 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 [2023-11-12 00:48:13,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:48:13,177 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/mathsat -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) [2023-11-12 00:48:13,178 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/mathsat -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 [2023-11-12 00:48:13,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:48:13,286 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-12 00:48:13,288 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:48:13,306 INFO L351 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 [2023-11-12 00:48:13,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:48:13,325 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:48:13,326 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:48:13,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [221804980] [2023-11-12 00:48:13,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [221804980] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:48:13,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:48:13,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:48:13,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262781727] [2023-11-12 00:48:13,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:48:13,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:48:13,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:48:13,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:48:13,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:48:13,339 INFO L87 Difference]: Start difference. First operand 876 states and 933 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) [2023-11-12 00:48:16,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:48:16,249 INFO L93 Difference]: Finished difference Result 1097 states and 1186 transitions. [2023-11-12 00:48:16,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:48:16,250 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 [2023-11-12 00:48:16,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:48:16,257 INFO L225 Difference]: With dead ends: 1097 [2023-11-12 00:48:16,257 INFO L226 Difference]: Without dead ends: 1097 [2023-11-12 00:48:16,257 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 [2023-11-12 00:48:16,259 INFO L413 NwaCegarLoop]: 833 mSDtfsCounter, 242 mSDsluCounter, 490 mSDsCounter, 0 mSdLazyCounter, 524 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 1323 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-11-12 00:48:16,259 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [247 Valid, 1323 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 524 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-11-12 00:48:16,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1097 states. [2023-11-12 00:48:16,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1097 to 1011. [2023-11-12 00:48:16,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1011 states, 583 states have (on average 1.9828473413379073) internal successors, (1156), 1004 states have internal predecessors, (1156), 15 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-12 00:48:16,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1011 states to 1011 states and 1184 transitions. [2023-11-12 00:48:16,294 INFO L78 Accepts]: Start accepts. Automaton has 1011 states and 1184 transitions. Word has length 3 [2023-11-12 00:48:16,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:48:16,295 INFO L495 AbstractCegarLoop]: Abstraction has 1011 states and 1184 transitions. [2023-11-12 00:48:16,295 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) [2023-11-12 00:48:16,295 INFO L276 IsEmpty]: Start isEmpty. Operand 1011 states and 1184 transitions. [2023-11-12 00:48:16,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-12 00:48:16,296 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:48:16,296 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:48:16,312 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/mathsat -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 [2023-11-12 00:48:16,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 00:48:16,505 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 427 more)] === [2023-11-12 00:48:16,506 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:48:16,506 INFO L85 PathProgramCache]: Analyzing trace with hash 1130822653, now seen corresponding path program 1 times [2023-11-12 00:48:16,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:48:16,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1337593138] [2023-11-12 00:48:16,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:48:16,507 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 [2023-11-12 00:48:16,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:48:16,509 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/mathsat -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) [2023-11-12 00:48:16,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/mathsat -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 [2023-11-12 00:48:16,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:48:16,655 INFO L262 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-12 00:48:16,658 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:48:16,679 INFO L351 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 [2023-11-12 00:48:16,687 INFO L351 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 [2023-11-12 00:48:16,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:48:16,818 INFO L351 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 [2023-11-12 00:48:16,843 INFO L322 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-12 00:48:16,844 INFO L351 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 [2023-11-12 00:48:16,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:48:16,876 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:48:16,877 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:48:16,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1337593138] [2023-11-12 00:48:16,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1337593138] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:48:16,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:48:16,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:48:16,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367115830] [2023-11-12 00:48:16,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:48:16,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 00:48:16,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:48:16,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 00:48:16,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-12 00:48:16,883 INFO L87 Difference]: Start difference. First operand 1011 states and 1184 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:48:19,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:48:19,781 INFO L93 Difference]: Finished difference Result 1001 states and 1173 transitions. [2023-11-12 00:48:19,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 00:48:19,783 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-12 00:48:19,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:48:19,789 INFO L225 Difference]: With dead ends: 1001 [2023-11-12 00:48:19,790 INFO L226 Difference]: Without dead ends: 1001 [2023-11-12 00:48:19,790 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-12 00:48:19,794 INFO L413 NwaCegarLoop]: 319 mSDtfsCounter, 1675 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 672 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1683 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 672 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-11-12 00:48:19,795 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1683 Valid, 350 Invalid, 700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 672 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-11-12 00:48:19,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1001 states. [2023-11-12 00:48:19,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1001 to 865. [2023-11-12 00:48:19,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 865 states, 452 states have (on average 1.997787610619469) internal successors, (903), 858 states have internal predecessors, (903), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-12 00:48:19,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 865 states to 865 states and 921 transitions. [2023-11-12 00:48:19,848 INFO L78 Accepts]: Start accepts. Automaton has 865 states and 921 transitions. Word has length 7 [2023-11-12 00:48:19,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:48:19,849 INFO L495 AbstractCegarLoop]: Abstraction has 865 states and 921 transitions. [2023-11-12 00:48:19,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:48:19,851 INFO L276 IsEmpty]: Start isEmpty. Operand 865 states and 921 transitions. [2023-11-12 00:48:19,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-12 00:48:19,852 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:48:19,852 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:48:19,865 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/mathsat -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 [2023-11-12 00:48:20,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 00:48:20,065 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 427 more)] === [2023-11-12 00:48:20,065 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:48:20,065 INFO L85 PathProgramCache]: Analyzing trace with hash 695763858, now seen corresponding path program 1 times [2023-11-12 00:48:20,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:48:20,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2015364313] [2023-11-12 00:48:20,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:48:20,067 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 [2023-11-12 00:48:20,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:48:20,068 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/mathsat -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) [2023-11-12 00:48:20,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/mathsat -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 [2023-11-12 00:48:20,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:48:20,201 INFO L262 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 00:48:20,204 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:48:20,211 INFO L351 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 [2023-11-12 00:48:20,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:48:20,226 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:48:20,227 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:48:20,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2015364313] [2023-11-12 00:48:20,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2015364313] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:48:20,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:48:20,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:48:20,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977288665] [2023-11-12 00:48:20,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:48:20,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:48:20,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:48:20,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:48:20,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:48:20,229 INFO L87 Difference]: Start difference. First operand 865 states and 921 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:48:22,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:48:22,257 INFO L93 Difference]: Finished difference Result 1043 states and 1131 transitions. [2023-11-12 00:48:22,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:48:22,259 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-11-12 00:48:22,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:48:22,265 INFO L225 Difference]: With dead ends: 1043 [2023-11-12 00:48:22,265 INFO L226 Difference]: Without dead ends: 1043 [2023-11-12 00:48:22,266 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:48:22,267 INFO L413 NwaCegarLoop]: 703 mSDtfsCounter, 818 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 527 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 826 SdHoareTripleChecker+Valid, 887 SdHoareTripleChecker+Invalid, 578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-12 00:48:22,267 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [826 Valid, 887 Invalid, 578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 527 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-12 00:48:22,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1043 states. [2023-11-12 00:48:22,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1043 to 818. [2023-11-12 00:48:22,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 818 states, 452 states have (on average 1.8938053097345133) internal successors, (856), 811 states have internal predecessors, (856), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-12 00:48:22,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 818 states to 818 states and 874 transitions. [2023-11-12 00:48:22,298 INFO L78 Accepts]: Start accepts. Automaton has 818 states and 874 transitions. Word has length 8 [2023-11-12 00:48:22,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:48:22,299 INFO L495 AbstractCegarLoop]: Abstraction has 818 states and 874 transitions. [2023-11-12 00:48:22,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:48:22,299 INFO L276 IsEmpty]: Start isEmpty. Operand 818 states and 874 transitions. [2023-11-12 00:48:22,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-12 00:48:22,300 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:48:22,300 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:48:22,318 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/mathsat -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 [2023-11-12 00:48:22,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 00:48:22,513 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 427 more)] === [2023-11-12 00:48:22,513 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:48:22,513 INFO L85 PathProgramCache]: Analyzing trace with hash 695763859, now seen corresponding path program 1 times [2023-11-12 00:48:22,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:48:22,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2141727844] [2023-11-12 00:48:22,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:48:22,514 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 [2023-11-12 00:48:22,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:48:22,516 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/mathsat -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) [2023-11-12 00:48:22,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/mathsat -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 [2023-11-12 00:48:22,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:48:22,671 INFO L262 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-12 00:48:22,673 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:48:22,682 INFO L351 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 [2023-11-12 00:48:22,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:48:22,729 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:48:22,729 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:48:22,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2141727844] [2023-11-12 00:48:22,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2141727844] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:48:22,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:48:22,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:48:22,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747452290] [2023-11-12 00:48:22,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:48:22,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:48:22,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:48:22,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:48:22,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:48:22,732 INFO L87 Difference]: Start difference. First operand 818 states and 874 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:48:25,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:48:25,469 INFO L93 Difference]: Finished difference Result 1113 states and 1203 transitions. [2023-11-12 00:48:25,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:48:25,471 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-11-12 00:48:25,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:48:25,477 INFO L225 Difference]: With dead ends: 1113 [2023-11-12 00:48:25,477 INFO L226 Difference]: Without dead ends: 1113 [2023-11-12 00:48:25,477 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:48:25,478 INFO L413 NwaCegarLoop]: 898 mSDtfsCounter, 507 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 544 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 512 SdHoareTripleChecker+Valid, 1244 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 544 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-11-12 00:48:25,479 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [512 Valid, 1244 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 544 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-11-12 00:48:25,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1113 states. [2023-11-12 00:48:25,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1113 to 840. [2023-11-12 00:48:25,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 840 states, 484 states have (on average 1.884297520661157) internal successors, (912), 833 states have internal predecessors, (912), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-12 00:48:25,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 840 states to 840 states and 930 transitions. [2023-11-12 00:48:25,505 INFO L78 Accepts]: Start accepts. Automaton has 840 states and 930 transitions. Word has length 8 [2023-11-12 00:48:25,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:48:25,505 INFO L495 AbstractCegarLoop]: Abstraction has 840 states and 930 transitions. [2023-11-12 00:48:25,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:48:25,506 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states and 930 transitions. [2023-11-12 00:48:25,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-12 00:48:25,506 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:48:25,506 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:48:25,521 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/mathsat -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 [2023-11-12 00:48:25,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 00:48:25,717 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr428ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 427 more)] === [2023-11-12 00:48:25,717 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:48:25,717 INFO L85 PathProgramCache]: Analyzing trace with hash -578348415, now seen corresponding path program 1 times [2023-11-12 00:48:25,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:48:25,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [772948542] [2023-11-12 00:48:25,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:48:25,718 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 [2023-11-12 00:48:25,719 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:48:25,720 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/mathsat -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) [2023-11-12 00:48:25,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/mathsat -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 [2023-11-12 00:48:25,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:48:25,901 INFO L262 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-12 00:48:25,903 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:48:25,912 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-12 00:48:25,913 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-12 00:48:25,913 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-12 00:48:25,918 INFO L351 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 30 treesize of output 39 [2023-11-12 00:48:25,995 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-12 00:48:25,995 INFO L351 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 70 treesize of output 26 [2023-11-12 00:48:26,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:48:26,015 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:48:26,015 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:48:26,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [772948542] [2023-11-12 00:48:26,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [772948542] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:48:26,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:48:26,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 00:48:26,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711944730] [2023-11-12 00:48:26,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:48:26,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 00:48:26,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:48:26,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 00:48:26,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 00:48:26,018 INFO L87 Difference]: Start difference. First operand 840 states and 930 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2023-11-12 00:48:27,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:48:27,589 INFO L93 Difference]: Finished difference Result 1063 states and 1184 transitions. [2023-11-12 00:48:27,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 00:48:27,590 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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 10 [2023-11-12 00:48:27,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:48:27,595 INFO L225 Difference]: With dead ends: 1063 [2023-11-12 00:48:27,595 INFO L226 Difference]: Without dead ends: 1063 [2023-11-12 00:48:27,596 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:48:27,597 INFO L413 NwaCegarLoop]: 820 mSDtfsCounter, 240 mSDsluCounter, 1529 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 2349 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-12 00:48:27,597 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 2349 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-12 00:48:27,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1063 states. [2023-11-12 00:48:27,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1063 to 842. [2023-11-12 00:48:27,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 842 states, 486 states have (on average 1.8806584362139918) internal successors, (914), 835 states have internal predecessors, (914), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-12 00:48:27,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 842 states to 842 states and 932 transitions. [2023-11-12 00:48:27,621 INFO L78 Accepts]: Start accepts. Automaton has 842 states and 932 transitions. Word has length 10 [2023-11-12 00:48:27,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:48:27,621 INFO L495 AbstractCegarLoop]: Abstraction has 842 states and 932 transitions. [2023-11-12 00:48:27,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2023-11-12 00:48:27,622 INFO L276 IsEmpty]: Start isEmpty. Operand 842 states and 932 transitions. [2023-11-12 00:48:27,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-12 00:48:27,622 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:48:27,622 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:48:27,644 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-11-12 00:48:27,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 00:48:27,837 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 427 more)] === [2023-11-12 00:48:27,837 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:48:27,837 INFO L85 PathProgramCache]: Analyzing trace with hash -168464001, now seen corresponding path program 1 times [2023-11-12 00:48:27,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:48:27,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1041633220] [2023-11-12 00:48:27,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:48:27,838 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 00:48:27,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:48:27,840 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/mathsat -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) [2023-11-12 00:48:27,851 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/mathsat -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 [2023-11-12 00:48:28,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:48:28,045 INFO L262 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-12 00:48:28,047 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:48:28,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:48:28,061 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:48:28,061 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:48:28,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1041633220] [2023-11-12 00:48:28,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1041633220] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:48:28,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:48:28,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:48:28,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86774807] [2023-11-12 00:48:28,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:48:28,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:48:28,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:48:28,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:48:28,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:48:28,064 INFO L87 Difference]: Start difference. First operand 842 states and 932 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 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) [2023-11-12 00:48:28,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:48:28,100 INFO L93 Difference]: Finished difference Result 800 states and 889 transitions. [2023-11-12 00:48:28,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:48:28,101 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 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 [2023-11-12 00:48:28,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:48:28,106 INFO L225 Difference]: With dead ends: 800 [2023-11-12 00:48:28,106 INFO L226 Difference]: Without dead ends: 800 [2023-11-12 00:48:28,106 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:48:28,107 INFO L413 NwaCegarLoop]: 801 mSDtfsCounter, 81 mSDsluCounter, 729 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 1530 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 00:48:28,110 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 1530 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 00:48:28,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 800 states. [2023-11-12 00:48:28,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 800 to 800. [2023-11-12 00:48:28,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 800 states, 468 states have (on average 1.8611111111111112) internal successors, (871), 793 states have internal predecessors, (871), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-12 00:48:28,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 800 states to 800 states and 889 transitions. [2023-11-12 00:48:28,141 INFO L78 Accepts]: Start accepts. Automaton has 800 states and 889 transitions. Word has length 18 [2023-11-12 00:48:28,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:48:28,141 INFO L495 AbstractCegarLoop]: Abstraction has 800 states and 889 transitions. [2023-11-12 00:48:28,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 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) [2023-11-12 00:48:28,144 INFO L276 IsEmpty]: Start isEmpty. Operand 800 states and 889 transitions. [2023-11-12 00:48:28,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-12 00:48:28,147 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:48:28,147 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] [2023-11-12 00:48:28,165 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/mathsat -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 [2023-11-12 00:48:28,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 00:48:28,361 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr38REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 427 more)] === [2023-11-12 00:48:28,361 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:48:28,361 INFO L85 PathProgramCache]: Analyzing trace with hash 1314847992, now seen corresponding path program 1 times [2023-11-12 00:48:28,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:48:28,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1483665196] [2023-11-12 00:48:28,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:48:28,362 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 [2023-11-12 00:48:28,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:48:28,365 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/mathsat -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) [2023-11-12 00:48:28,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/mathsat -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 [2023-11-12 00:48:28,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:48:28,585 INFO L262 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 00:48:28,587 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:48:28,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:48:28,617 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:48:28,618 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:48:28,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1483665196] [2023-11-12 00:48:28,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1483665196] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:48:28,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:48:28,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 00:48:28,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026930694] [2023-11-12 00:48:28,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:48:28,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 00:48:28,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:48:28,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 00:48:28,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 00:48:28,621 INFO L87 Difference]: Start difference. First operand 800 states and 889 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:48:28,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:48:28,707 INFO L93 Difference]: Finished difference Result 779 states and 861 transitions. [2023-11-12 00:48:28,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 00:48:28,708 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2023-11-12 00:48:28,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:48:28,713 INFO L225 Difference]: With dead ends: 779 [2023-11-12 00:48:28,713 INFO L226 Difference]: Without dead ends: 779 [2023-11-12 00:48:28,713 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:48:28,714 INFO L413 NwaCegarLoop]: 756 mSDtfsCounter, 62 mSDsluCounter, 1478 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 2234 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:48:28,714 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 2234 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:48:28,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 779 states. [2023-11-12 00:48:28,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 779 to 778. [2023-11-12 00:48:28,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 778 states, 460 states have (on average 1.8304347826086957) internal successors, (842), 771 states have internal predecessors, (842), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-12 00:48:28,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 778 states to 778 states and 860 transitions. [2023-11-12 00:48:28,738 INFO L78 Accepts]: Start accepts. Automaton has 778 states and 860 transitions. Word has length 20 [2023-11-12 00:48:28,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:48:28,739 INFO L495 AbstractCegarLoop]: Abstraction has 778 states and 860 transitions. [2023-11-12 00:48:28,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:48:28,739 INFO L276 IsEmpty]: Start isEmpty. Operand 778 states and 860 transitions. [2023-11-12 00:48:28,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-12 00:48:28,740 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:48:28,741 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:48:28,758 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-11-12 00:48:28,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 00:48:28,953 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr52REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 427 more)] === [2023-11-12 00:48:28,954 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:48:28,954 INFO L85 PathProgramCache]: Analyzing trace with hash 1346685766, now seen corresponding path program 1 times [2023-11-12 00:48:28,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:48:28,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [94064348] [2023-11-12 00:48:28,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:48:28,955 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 [2023-11-12 00:48:28,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:48:28,958 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/mathsat -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) [2023-11-12 00:48:28,976 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/mathsat -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 [2023-11-12 00:48:29,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:48:29,159 INFO L262 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-12 00:48:29,161 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:48:29,169 INFO L351 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 [2023-11-12 00:48:29,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:48:29,280 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:48:29,281 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:48:29,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [94064348] [2023-11-12 00:48:29,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [94064348] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:48:29,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:48:29,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:48:29,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808352331] [2023-11-12 00:48:29,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:48:29,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 00:48:29,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:48:29,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 00:48:29,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 00:48:29,283 INFO L87 Difference]: Start difference. First operand 778 states and 860 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:48:31,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:48:31,608 INFO L93 Difference]: Finished difference Result 999 states and 1113 transitions. [2023-11-12 00:48:31,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 00:48:31,608 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2023-11-12 00:48:31,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:48:31,614 INFO L225 Difference]: With dead ends: 999 [2023-11-12 00:48:31,614 INFO L226 Difference]: Without dead ends: 999 [2023-11-12 00:48:31,615 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:48:31,615 INFO L413 NwaCegarLoop]: 409 mSDtfsCounter, 743 mSDsluCounter, 525 mSDsCounter, 0 mSdLazyCounter, 864 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 751 SdHoareTripleChecker+Valid, 934 SdHoareTripleChecker+Invalid, 872 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 864 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-11-12 00:48:31,616 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [751 Valid, 934 Invalid, 872 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 864 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-11-12 00:48:31,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 999 states. [2023-11-12 00:48:31,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 999 to 774. [2023-11-12 00:48:31,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 774 states, 460 states have (on average 1.8217391304347825) internal successors, (838), 767 states have internal predecessors, (838), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-12 00:48:31,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 774 states to 774 states and 856 transitions. [2023-11-12 00:48:31,636 INFO L78 Accepts]: Start accepts. Automaton has 774 states and 856 transitions. Word has length 34 [2023-11-12 00:48:31,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:48:31,636 INFO L495 AbstractCegarLoop]: Abstraction has 774 states and 856 transitions. [2023-11-12 00:48:31,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:48:31,637 INFO L276 IsEmpty]: Start isEmpty. Operand 774 states and 856 transitions. [2023-11-12 00:48:31,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-12 00:48:31,638 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:48:31,638 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:48:31,655 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/mathsat -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)] Ended with exit code 0 [2023-11-12 00:48:31,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 00:48:31,850 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr53REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 427 more)] === [2023-11-12 00:48:31,851 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:48:31,851 INFO L85 PathProgramCache]: Analyzing trace with hash 1346685767, now seen corresponding path program 1 times [2023-11-12 00:48:31,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:48:31,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [366585482] [2023-11-12 00:48:31,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:48:31,851 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 [2023-11-12 00:48:31,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:48:31,852 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/mathsat -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) [2023-11-12 00:48:31,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/mathsat -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 [2023-11-12 00:48:32,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:48:32,047 INFO L262 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-12 00:48:32,054 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:48:32,070 INFO L351 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 [2023-11-12 00:48:32,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:48:32,307 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:48:32,308 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:48:32,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [366585482] [2023-11-12 00:48:32,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [366585482] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:48:32,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:48:32,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:48:32,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748006498] [2023-11-12 00:48:32,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:48:32,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 00:48:32,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:48:32,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 00:48:32,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 00:48:32,309 INFO L87 Difference]: Start difference. First operand 774 states and 856 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:48:35,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:48:35,501 INFO L93 Difference]: Finished difference Result 1043 states and 1125 transitions. [2023-11-12 00:48:35,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 00:48:35,502 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2023-11-12 00:48:35,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:48:35,506 INFO L225 Difference]: With dead ends: 1043 [2023-11-12 00:48:35,507 INFO L226 Difference]: Without dead ends: 1043 [2023-11-12 00:48:35,507 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:48:35,507 INFO L413 NwaCegarLoop]: 602 mSDtfsCounter, 434 mSDsluCounter, 700 mSDsCounter, 0 mSdLazyCounter, 875 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 439 SdHoareTripleChecker+Valid, 1302 SdHoareTripleChecker+Invalid, 878 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 875 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:48:35,508 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [439 Valid, 1302 Invalid, 878 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 875 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-11-12 00:48:35,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1043 states. [2023-11-12 00:48:35,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1043 to 770. [2023-11-12 00:48:35,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 770 states, 460 states have (on average 1.8130434782608695) internal successors, (834), 763 states have internal predecessors, (834), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-12 00:48:35,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 770 states to 770 states and 852 transitions. [2023-11-12 00:48:35,529 INFO L78 Accepts]: Start accepts. Automaton has 770 states and 852 transitions. Word has length 34 [2023-11-12 00:48:35,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:48:35,530 INFO L495 AbstractCegarLoop]: Abstraction has 770 states and 852 transitions. [2023-11-12 00:48:35,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:48:35,530 INFO L276 IsEmpty]: Start isEmpty. Operand 770 states and 852 transitions. [2023-11-12 00:48:35,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-12 00:48:35,532 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:48:35,532 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:48:35,549 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/mathsat -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 [2023-11-12 00:48:35,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 00:48:35,745 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr117REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 427 more)] === [2023-11-12 00:48:35,745 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:48:35,745 INFO L85 PathProgramCache]: Analyzing trace with hash 691711424, now seen corresponding path program 1 times [2023-11-12 00:48:35,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:48:35,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [762814881] [2023-11-12 00:48:35,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:48:35,746 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 [2023-11-12 00:48:35,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:48:35,748 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/mathsat -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) [2023-11-12 00:48:35,753 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/mathsat -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 [2023-11-12 00:48:35,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:48:36,009 INFO L262 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 00:48:36,011 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:48:36,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:48:36,068 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:48:36,068 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:48:36,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [762814881] [2023-11-12 00:48:36,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [762814881] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:48:36,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:48:36,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 00:48:36,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637543470] [2023-11-12 00:48:36,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:48:36,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 00:48:36,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:48:36,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 00:48:36,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 00:48:36,071 INFO L87 Difference]: Start difference. First operand 770 states and 852 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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) [2023-11-12 00:48:36,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:48:36,153 INFO L93 Difference]: Finished difference Result 764 states and 842 transitions. [2023-11-12 00:48:36,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 00:48:36,154 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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 50 [2023-11-12 00:48:36,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:48:36,158 INFO L225 Difference]: With dead ends: 764 [2023-11-12 00:48:36,158 INFO L226 Difference]: Without dead ends: 764 [2023-11-12 00:48:36,159 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:48:36,159 INFO L413 NwaCegarLoop]: 750 mSDtfsCounter, 31 mSDsluCounter, 1462 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 2212 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:48:36,160 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 2212 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:48:36,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 764 states. [2023-11-12 00:48:36,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 764 to 764. [2023-11-12 00:48:36,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 764 states, 454 states have (on average 1.8149779735682818) internal successors, (824), 757 states have internal predecessors, (824), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-12 00:48:36,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 764 states to 764 states and 842 transitions. [2023-11-12 00:48:36,178 INFO L78 Accepts]: Start accepts. Automaton has 764 states and 842 transitions. Word has length 50 [2023-11-12 00:48:36,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:48:36,179 INFO L495 AbstractCegarLoop]: Abstraction has 764 states and 842 transitions. [2023-11-12 00:48:36,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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) [2023-11-12 00:48:36,179 INFO L276 IsEmpty]: Start isEmpty. Operand 764 states and 842 transitions. [2023-11-12 00:48:36,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-12 00:48:36,181 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:48:36,181 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:48:36,197 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/mathsat -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 [2023-11-12 00:48:36,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 00:48:36,395 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr117REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 427 more)] === [2023-11-12 00:48:36,395 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:48:36,395 INFO L85 PathProgramCache]: Analyzing trace with hash 530354060, now seen corresponding path program 1 times [2023-11-12 00:48:36,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:48:36,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [82544313] [2023-11-12 00:48:36,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:48:36,396 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 [2023-11-12 00:48:36,397 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:48:36,397 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/mathsat -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) [2023-11-12 00:48:36,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/mathsat -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 [2023-11-12 00:48:36,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:48:36,661 INFO L262 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 00:48:36,663 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:48:37,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:48:37,043 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:48:37,043 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:48:37,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [82544313] [2023-11-12 00:48:37,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [82544313] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:48:37,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:48:37,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:48:37,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033204562] [2023-11-12 00:48:37,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:48:37,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:48:37,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:48:37,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:48:37,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:48:37,046 INFO L87 Difference]: Start difference. First operand 764 states and 842 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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) [2023-11-12 00:48:37,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:48:37,207 INFO L93 Difference]: Finished difference Result 968 states and 1069 transitions. [2023-11-12 00:48:37,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:48:37,208 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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 58 [2023-11-12 00:48:37,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:48:37,213 INFO L225 Difference]: With dead ends: 968 [2023-11-12 00:48:37,213 INFO L226 Difference]: Without dead ends: 968 [2023-11-12 00:48:37,213 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:48:37,214 INFO L413 NwaCegarLoop]: 902 mSDtfsCounter, 230 mSDsluCounter, 652 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 1554 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:48:37,214 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [237 Valid, 1554 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:48:37,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 968 states. [2023-11-12 00:48:37,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 968 to 914. [2023-11-12 00:48:37,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 914 states, 599 states have (on average 1.7328881469115192) internal successors, (1038), 907 states have internal predecessors, (1038), 15 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-12 00:48:37,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 914 states to 914 states and 1066 transitions. [2023-11-12 00:48:37,236 INFO L78 Accepts]: Start accepts. Automaton has 914 states and 1066 transitions. Word has length 58 [2023-11-12 00:48:37,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:48:37,236 INFO L495 AbstractCegarLoop]: Abstraction has 914 states and 1066 transitions. [2023-11-12 00:48:37,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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) [2023-11-12 00:48:37,237 INFO L276 IsEmpty]: Start isEmpty. Operand 914 states and 1066 transitions. [2023-11-12 00:48:37,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-12 00:48:37,238 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:48:37,238 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:48:37,252 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2023-11-12 00:48:37,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 00:48:37,452 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 427 more)] === [2023-11-12 00:48:37,453 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:48:37,453 INFO L85 PathProgramCache]: Analyzing trace with hash -1514336476, now seen corresponding path program 1 times [2023-11-12 00:48:37,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:48:37,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1664884700] [2023-11-12 00:48:37,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:48:37,453 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 [2023-11-12 00:48:37,454 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:48:37,455 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/mathsat -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) [2023-11-12 00:48:37,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/mathsat -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 [2023-11-12 00:48:37,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:48:37,821 INFO L262 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-12 00:48:37,834 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:48:37,848 INFO L351 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 [2023-11-12 00:48:37,855 INFO L351 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 [2023-11-12 00:48:38,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:48:38,531 INFO L351 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 [2023-11-12 00:48:38,548 INFO L322 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-12 00:48:38,548 INFO L351 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 [2023-11-12 00:48:38,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:48:38,566 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:48:38,566 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:48:38,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1664884700] [2023-11-12 00:48:38,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1664884700] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:48:38,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:48:38,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:48:38,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655972310] [2023-11-12 00:48:38,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:48:38,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 00:48:38,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:48:38,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 00:48:38,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-12 00:48:38,570 INFO L87 Difference]: Start difference. First operand 914 states and 1066 transitions. Second operand has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 4 states have internal predecessors, (61), 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) [2023-11-12 00:48:41,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:48:41,266 INFO L93 Difference]: Finished difference Result 1199 states and 1457 transitions. [2023-11-12 00:48:41,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 00:48:41,266 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 4 states have internal predecessors, (61), 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 61 [2023-11-12 00:48:41,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:48:41,272 INFO L225 Difference]: With dead ends: 1199 [2023-11-12 00:48:41,273 INFO L226 Difference]: Without dead ends: 1199 [2023-11-12 00:48:41,273 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-12 00:48:41,274 INFO L413 NwaCegarLoop]: 274 mSDtfsCounter, 1519 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 614 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1532 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 614 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-11-12 00:48:41,275 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1532 Valid, 405 Invalid, 667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 614 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-11-12 00:48:41,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1199 states. [2023-11-12 00:48:41,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1199 to 844. [2023-11-12 00:48:41,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 844 states, 567 states have (on average 1.6472663139329806) internal successors, (934), 837 states have internal predecessors, (934), 15 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-12 00:48:41,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 962 transitions. [2023-11-12 00:48:41,297 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 962 transitions. Word has length 61 [2023-11-12 00:48:41,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:48:41,299 INFO L495 AbstractCegarLoop]: Abstraction has 844 states and 962 transitions. [2023-11-12 00:48:41,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 4 states have internal predecessors, (61), 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) [2023-11-12 00:48:41,300 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 962 transitions. [2023-11-12 00:48:41,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-12 00:48:41,305 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:48:41,305 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:48:41,326 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/mathsat -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 [2023-11-12 00:48:41,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 00:48:41,518 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr76REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 427 more)] === [2023-11-12 00:48:41,519 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:48:41,519 INFO L85 PathProgramCache]: Analyzing trace with hash 1287372127, now seen corresponding path program 1 times [2023-11-12 00:48:41,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:48:41,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [239685599] [2023-11-12 00:48:41,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:48:41,520 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 [2023-11-12 00:48:41,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:48:41,521 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/mathsat -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) [2023-11-12 00:48:41,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/mathsat -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 [2023-11-12 00:48:41,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:48:41,811 INFO L262 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-12 00:48:41,814 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:48:41,826 INFO L351 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 [2023-11-12 00:48:41,843 INFO L351 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 19 treesize of output 1 [2023-11-12 00:48:41,883 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-11-12 00:48:41,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:48:41,897 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:48:41,897 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:48:41,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [239685599] [2023-11-12 00:48:41,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [239685599] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:48:41,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:48:41,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 00:48:41,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070057051] [2023-11-12 00:48:41,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:48:41,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 00:48:41,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:48:41,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 00:48:41,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:48:41,900 INFO L87 Difference]: Start difference. First operand 844 states and 962 transitions. Second operand has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 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) [2023-11-12 00:48:44,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:48:44,356 INFO L93 Difference]: Finished difference Result 843 states and 961 transitions. [2023-11-12 00:48:44,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 00:48:44,357 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 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 66 [2023-11-12 00:48:44,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:48:44,361 INFO L225 Difference]: With dead ends: 843 [2023-11-12 00:48:44,361 INFO L226 Difference]: Without dead ends: 843 [2023-11-12 00:48:44,361 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-12 00:48:44,362 INFO L413 NwaCegarLoop]: 723 mSDtfsCounter, 4 mSDsluCounter, 1174 mSDsCounter, 0 mSdLazyCounter, 1000 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1897 SdHoareTripleChecker+Invalid, 1001 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1000 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-11-12 00:48:44,362 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1897 Invalid, 1001 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1000 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-11-12 00:48:44,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 843 states. [2023-11-12 00:48:44,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 843 to 843. [2023-11-12 00:48:44,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 843 states, 567 states have (on average 1.6455026455026456) internal successors, (933), 836 states have internal predecessors, (933), 15 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-12 00:48:44,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 843 states to 843 states and 961 transitions. [2023-11-12 00:48:44,380 INFO L78 Accepts]: Start accepts. Automaton has 843 states and 961 transitions. Word has length 66 [2023-11-12 00:48:44,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:48:44,380 INFO L495 AbstractCegarLoop]: Abstraction has 843 states and 961 transitions. [2023-11-12 00:48:44,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 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) [2023-11-12 00:48:44,381 INFO L276 IsEmpty]: Start isEmpty. Operand 843 states and 961 transitions. [2023-11-12 00:48:44,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-12 00:48:44,381 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:48:44,381 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:48:44,396 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/mathsat -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 [2023-11-12 00:48:44,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 00:48:44,596 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr77REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 427 more)] === [2023-11-12 00:48:44,596 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:48:44,596 INFO L85 PathProgramCache]: Analyzing trace with hash 1287372128, now seen corresponding path program 1 times [2023-11-12 00:48:44,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:48:44,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [187449553] [2023-11-12 00:48:44,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:48:44,597 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 [2023-11-12 00:48:44,597 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:48:44,598 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/mathsat -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) [2023-11-12 00:48:44,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/mathsat -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 [2023-11-12 00:48:44,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:48:44,913 INFO L262 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-12 00:48:44,916 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:48:44,943 INFO L351 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 [2023-11-12 00:48:44,965 INFO L351 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 13 treesize of output 9 [2023-11-12 00:48:44,974 INFO L351 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 19 treesize of output 1 [2023-11-12 00:48:45,031 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2023-11-12 00:48:45,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:48:45,051 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:48:45,051 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:48:45,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [187449553] [2023-11-12 00:48:45,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [187449553] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:48:45,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:48:45,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 00:48:45,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454565170] [2023-11-12 00:48:45,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:48:45,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 00:48:45,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:48:45,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 00:48:45,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:48:45,053 INFO L87 Difference]: Start difference. First operand 843 states and 961 transitions. Second operand has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 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) [2023-11-12 00:48:48,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:48:48,309 INFO L93 Difference]: Finished difference Result 842 states and 960 transitions. [2023-11-12 00:48:48,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 00:48:48,310 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 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 66 [2023-11-12 00:48:48,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:48:48,314 INFO L225 Difference]: With dead ends: 842 [2023-11-12 00:48:48,314 INFO L226 Difference]: Without dead ends: 842 [2023-11-12 00:48:48,314 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-12 00:48:48,315 INFO L413 NwaCegarLoop]: 723 mSDtfsCounter, 2 mSDsluCounter, 1194 mSDsCounter, 0 mSdLazyCounter, 978 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1917 SdHoareTripleChecker+Invalid, 979 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 978 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-11-12 00:48:48,315 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1917 Invalid, 979 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 978 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-11-12 00:48:48,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 842 states. [2023-11-12 00:48:48,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 842 to 842. [2023-11-12 00:48:48,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 842 states, 566 states have (on average 1.646643109540636) internal successors, (932), 835 states have internal predecessors, (932), 15 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-12 00:48:48,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 842 states to 842 states and 960 transitions. [2023-11-12 00:48:48,335 INFO L78 Accepts]: Start accepts. Automaton has 842 states and 960 transitions. Word has length 66 [2023-11-12 00:48:48,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:48:48,335 INFO L495 AbstractCegarLoop]: Abstraction has 842 states and 960 transitions. [2023-11-12 00:48:48,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 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) [2023-11-12 00:48:48,336 INFO L276 IsEmpty]: Start isEmpty. Operand 842 states and 960 transitions. [2023-11-12 00:48:48,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-11-12 00:48:48,336 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:48:48,337 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:48:48,352 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/mathsat -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)] Ended with exit code 0 [2023-11-12 00:48:48,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 00:48:48,552 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 427 more)] === [2023-11-12 00:48:48,553 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:48:48,553 INFO L85 PathProgramCache]: Analyzing trace with hash 719761222, now seen corresponding path program 1 times [2023-11-12 00:48:48,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:48:48,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1109335552] [2023-11-12 00:48:48,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:48:48,553 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 [2023-11-12 00:48:48,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:48:48,555 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/mathsat -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) [2023-11-12 00:48:48,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93352567-784c-4826-8430-7c96f11ef98a/bin/utaipan-verify-NcY6lQBIFX/mathsat -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