./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/busybox-1.22.0/sleep-3.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version e7bb482b 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_2c8afbce-8d21-44d8-9684-655d57cc8448/bin/utaipan-verify-FOvIYxoinp/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8afbce-8d21-44d8-9684-655d57cc8448/bin/utaipan-verify-FOvIYxoinp/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8afbce-8d21-44d8-9684-655d57cc8448/bin/utaipan-verify-FOvIYxoinp/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8afbce-8d21-44d8-9684-655d57cc8448/bin/utaipan-verify-FOvIYxoinp/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/busybox-1.22.0/sleep-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8afbce-8d21-44d8-9684-655d57cc8448/bin/utaipan-verify-FOvIYxoinp/config/svcomp-DerefFreeMemtrack-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8afbce-8d21-44d8-9684-655d57cc8448/bin/utaipan-verify-FOvIYxoinp --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 9b2c4c71fd44c34ae7a33274838ccc460f2f1b8a1b9265f4b9e915d25004e6e6 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 20:33:07,572 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 20:33:07,643 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8afbce-8d21-44d8-9684-655d57cc8448/bin/utaipan-verify-FOvIYxoinp/config/svcomp-DerefFreeMemtrack-64bit-Taipan_Default.epf [2023-11-06 20:33:07,649 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 20:33:07,649 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 20:33:07,689 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 20:33:07,690 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 20:33:07,691 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 20:33:07,691 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 20:33:07,699 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 20:33:07,699 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-06 20:33:07,700 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-06 20:33:07,700 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-06 20:33:07,702 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-06 20:33:07,703 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-06 20:33:07,704 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-06 20:33:07,704 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-06 20:33:07,705 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-06 20:33:07,705 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-06 20:33:07,706 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-06 20:33:07,706 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-06 20:33:07,707 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-06 20:33:07,707 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 20:33:07,708 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 20:33:07,708 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 20:33:07,709 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 20:33:07,709 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 20:33:07,709 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-06 20:33:07,710 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-06 20:33:07,710 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-06 20:33:07,710 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 20:33:07,711 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 20:33:07,711 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 20:33:07,711 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 20:33:07,711 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 20:33:07,712 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 20:33:07,712 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 20:33:07,712 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 20:33:07,712 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 20:33:07,713 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-06 20:33:07,713 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 20:33:07,713 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-06 20:33:07,713 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 20:33:07,714 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_2c8afbce-8d21-44d8-9684-655d57cc8448/bin/utaipan-verify-FOvIYxoinp/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8afbce-8d21-44d8-9684-655d57cc8448/bin/utaipan-verify-FOvIYxoinp Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9b2c4c71fd44c34ae7a33274838ccc460f2f1b8a1b9265f4b9e915d25004e6e6 [2023-11-06 20:33:08,019 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 20:33:08,052 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 20:33:08,055 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 20:33:08,056 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 20:33:08,057 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 20:33:08,058 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8afbce-8d21-44d8-9684-655d57cc8448/bin/utaipan-verify-FOvIYxoinp/../../sv-benchmarks/c/busybox-1.22.0/sleep-3.i [2023-11-06 20:33:11,136 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 20:33:11,579 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 20:33:11,580 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8afbce-8d21-44d8-9684-655d57cc8448/sv-benchmarks/c/busybox-1.22.0/sleep-3.i [2023-11-06 20:33:11,615 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8afbce-8d21-44d8-9684-655d57cc8448/bin/utaipan-verify-FOvIYxoinp/data/4696f9216/bf8aaea601124d9e8486620a8c30cc6d/FLAG3d23b1e2b [2023-11-06 20:33:11,630 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8afbce-8d21-44d8-9684-655d57cc8448/bin/utaipan-verify-FOvIYxoinp/data/4696f9216/bf8aaea601124d9e8486620a8c30cc6d [2023-11-06 20:33:11,633 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 20:33:11,634 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 20:33:11,636 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 20:33:11,637 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 20:33:11,642 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 20:33:11,643 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:33:11" (1/1) ... [2023-11-06 20:33:11,644 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45aaa5f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:33:11, skipping insertion in model container [2023-11-06 20:33:11,644 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:33:11" (1/1) ... [2023-11-06 20:33:11,734 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 20:33:13,248 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 20:33:13,275 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) [2023-11-06 20:33:13,276 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7533c193 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:33:13, skipping insertion in model container [2023-11-06 20:33:13,276 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 20:33:13,277 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-06 20:33:13,279 INFO L158 Benchmark]: Toolchain (without parser) took 1643.20ms. Allocated memory was 121.6MB in the beginning and 151.0MB in the end (delta: 29.4MB). Free memory was 71.4MB in the beginning and 114.5MB in the end (delta: -43.1MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2023-11-06 20:33:13,279 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 121.6MB. Free memory is still 94.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 20:33:13,280 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1640.27ms. Allocated memory was 121.6MB in the beginning and 151.0MB in the end (delta: 29.4MB). Free memory was 71.4MB in the beginning and 114.5MB in the end (delta: -43.1MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2023-11-06 20:33:13,282 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 121.6MB. Free memory is still 94.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1640.27ms. Allocated memory was 121.6MB in the beginning and 151.0MB in the end (delta: 29.4MB). Free memory was 71.4MB in the beginning and 114.5MB in the end (delta: -43.1MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 2471]: 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_2c8afbce-8d21-44d8-9684-655d57cc8448/bin/utaipan-verify-FOvIYxoinp/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8afbce-8d21-44d8-9684-655d57cc8448/bin/utaipan-verify-FOvIYxoinp/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8afbce-8d21-44d8-9684-655d57cc8448/bin/utaipan-verify-FOvIYxoinp/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8afbce-8d21-44d8-9684-655d57cc8448/bin/utaipan-verify-FOvIYxoinp/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/busybox-1.22.0/sleep-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8afbce-8d21-44d8-9684-655d57cc8448/bin/utaipan-verify-FOvIYxoinp/config/svcomp-DerefFreeMemtrack-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8afbce-8d21-44d8-9684-655d57cc8448/bin/utaipan-verify-FOvIYxoinp --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 9b2c4c71fd44c34ae7a33274838ccc460f2f1b8a1b9265f4b9e915d25004e6e6 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 20:33:15,947 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 20:33:16,094 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8afbce-8d21-44d8-9684-655d57cc8448/bin/utaipan-verify-FOvIYxoinp/config/svcomp-DerefFreeMemtrack-64bit-Taipan_Bitvector.epf [2023-11-06 20:33:16,103 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 20:33:16,104 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 20:33:16,148 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 20:33:16,149 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 20:33:16,149 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 20:33:16,150 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 20:33:16,155 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 20:33:16,156 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-06 20:33:16,156 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-06 20:33:16,157 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-06 20:33:16,159 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-06 20:33:16,159 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-06 20:33:16,160 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-06 20:33:16,160 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 20:33:16,161 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 20:33:16,162 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 20:33:16,163 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 20:33:16,163 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 20:33:16,164 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-06 20:33:16,164 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-06 20:33:16,165 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-06 20:33:16,165 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 20:33:16,166 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 20:33:16,166 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-06 20:33:16,167 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-06 20:33:16,167 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 20:33:16,168 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 20:33:16,169 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 20:33:16,169 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 20:33:16,170 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 20:33:16,170 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 20:33:16,170 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 20:33:16,171 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 20:33:16,171 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-06 20:33:16,172 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-06 20:33:16,172 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-06 20:33:16,172 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 20:33:16,172 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_2c8afbce-8d21-44d8-9684-655d57cc8448/bin/utaipan-verify-FOvIYxoinp/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8afbce-8d21-44d8-9684-655d57cc8448/bin/utaipan-verify-FOvIYxoinp Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9b2c4c71fd44c34ae7a33274838ccc460f2f1b8a1b9265f4b9e915d25004e6e6 [2023-11-06 20:33:16,580 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 20:33:16,601 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 20:33:16,604 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 20:33:16,605 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 20:33:16,606 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 20:33:16,607 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8afbce-8d21-44d8-9684-655d57cc8448/bin/utaipan-verify-FOvIYxoinp/../../sv-benchmarks/c/busybox-1.22.0/sleep-3.i [2023-11-06 20:33:19,755 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 20:33:20,320 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 20:33:20,321 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8afbce-8d21-44d8-9684-655d57cc8448/sv-benchmarks/c/busybox-1.22.0/sleep-3.i [2023-11-06 20:33:20,362 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8afbce-8d21-44d8-9684-655d57cc8448/bin/utaipan-verify-FOvIYxoinp/data/5d0d60774/33776881d288436491cc909b7b0d592c/FLAG01d8505c1 [2023-11-06 20:33:20,385 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8afbce-8d21-44d8-9684-655d57cc8448/bin/utaipan-verify-FOvIYxoinp/data/5d0d60774/33776881d288436491cc909b7b0d592c [2023-11-06 20:33:20,391 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 20:33:20,393 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 20:33:20,397 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 20:33:20,397 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 20:33:20,405 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 20:33:20,405 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:33:20" (1/1) ... [2023-11-06 20:33:20,406 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1db5613d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:33:20, skipping insertion in model container [2023-11-06 20:33:20,407 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:33:20" (1/1) ... [2023-11-06 20:33:20,479 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 20:33:22,153 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 20:33:22,200 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-06 20:33:22,231 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 20:33:22,390 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 20:33:22,413 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 20:33:22,559 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 20:33:22,840 WARN L672 CHandler]: The function fflush is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 20:33:22,840 WARN L672 CHandler]: The function strtoull is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 20:33:22,840 WARN L672 CHandler]: The function strspn is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 20:33:22,840 WARN L672 CHandler]: The function longjmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 20:33:22,848 INFO L206 MainTranslator]: Completed translation [2023-11-06 20:33:22,849 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:33:22 WrapperNode [2023-11-06 20:33:22,849 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 20:33:22,850 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 20:33:22,850 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 20:33:22,850 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 20:33:22,857 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:33:22" (1/1) ... [2023-11-06 20:33:22,924 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:33:22" (1/1) ... [2023-11-06 20:33:23,035 INFO L138 Inliner]: procedures = 647, calls = 237, calls flagged for inlining = 17, calls inlined = 15, statements flattened = 715 [2023-11-06 20:33:23,036 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 20:33:23,037 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 20:33:23,037 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 20:33:23,038 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 20:33:23,047 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:33:22" (1/1) ... [2023-11-06 20:33:23,047 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:33:22" (1/1) ... [2023-11-06 20:33:23,082 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:33:22" (1/1) ... [2023-11-06 20:33:23,083 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:33:22" (1/1) ... [2023-11-06 20:33:23,147 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:33:22" (1/1) ... [2023-11-06 20:33:23,166 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:33:22" (1/1) ... [2023-11-06 20:33:23,179 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:33:22" (1/1) ... [2023-11-06 20:33:23,187 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:33:22" (1/1) ... [2023-11-06 20:33:23,201 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 20:33:23,202 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 20:33:23,202 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 20:33:23,203 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 20:33:23,203 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:33:22" (1/1) ... [2023-11-06 20:33:23,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 20:33:23,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8afbce-8d21-44d8-9684-655d57cc8448/bin/utaipan-verify-FOvIYxoinp/z3 [2023-11-06 20:33:23,242 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8afbce-8d21-44d8-9684-655d57cc8448/bin/utaipan-verify-FOvIYxoinp/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 20:33:23,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8afbce-8d21-44d8-9684-655d57cc8448/bin/utaipan-verify-FOvIYxoinp/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 20:33:23,286 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 20:33:23,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-06 20:33:23,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-11-06 20:33:23,287 INFO L130 BoogieDeclarations]: Found specification of procedure xatoul_sfx [2023-11-06 20:33:23,287 INFO L138 BoogieDeclarations]: Found implementation of procedure xatoul_sfx [2023-11-06 20:33:23,287 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 20:33:23,287 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2023-11-06 20:33:23,287 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 20:33:23,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-06 20:33:23,288 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2023-11-06 20:33:23,288 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2023-11-06 20:33:23,288 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2023-11-06 20:33:23,288 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2023-11-06 20:33:23,288 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 20:33:23,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 20:33:23,288 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-06 20:33:23,288 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2023-11-06 20:33:23,289 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2023-11-06 20:33:23,289 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2023-11-06 20:33:23,289 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-06 20:33:23,289 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-06 20:33:23,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-06 20:33:23,289 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-06 20:33:23,289 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-06 20:33:23,290 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 20:33:23,290 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-06 20:33:23,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2023-11-06 20:33:23,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2023-11-06 20:33:23,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-06 20:33:23,290 INFO L130 BoogieDeclarations]: Found specification of procedure bb_show_usage [2023-11-06 20:33:23,290 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_show_usage [2023-11-06 20:33:23,291 INFO L130 BoogieDeclarations]: Found specification of procedure strspn [2023-11-06 20:33:23,291 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2023-11-06 20:33:23,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2023-11-06 20:33:23,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2023-11-06 20:33:23,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2023-11-06 20:33:23,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2023-11-06 20:33:23,291 INFO L130 BoogieDeclarations]: Found specification of procedure bb_error_msg_and_die [2023-11-06 20:33:23,291 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_error_msg_and_die [2023-11-06 20:33:23,828 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 20:33:23,830 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 20:33:30,812 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 20:33:30,824 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 20:33:30,824 INFO L302 CfgBuilder]: Removed 11 assume(true) statements. [2023-11-06 20:33:30,827 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:33:30 BoogieIcfgContainer [2023-11-06 20:33:30,827 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 20:33:30,830 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 20:33:30,830 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 20:33:30,833 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 20:33:30,833 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 08:33:20" (1/3) ... [2023-11-06 20:33:30,834 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3db4895e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:33:30, skipping insertion in model container [2023-11-06 20:33:30,834 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:33:22" (2/3) ... [2023-11-06 20:33:30,835 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3db4895e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:33:30, skipping insertion in model container [2023-11-06 20:33:30,835 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:33:30" (3/3) ... [2023-11-06 20:33:30,836 INFO L112 eAbstractionObserver]: Analyzing ICFG sleep-3.i [2023-11-06 20:33:30,856 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 20:33:30,856 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 221 error locations. [2023-11-06 20:33:30,914 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 20:33:30,921 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;@34dd899, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-06 20:33:30,922 INFO L358 AbstractCegarLoop]: Starting to check reachability of 221 error locations. [2023-11-06 20:33:30,929 INFO L276 IsEmpty]: Start isEmpty. Operand has 533 states, 291 states have (on average 1.9725085910652922) internal successors, (574), 514 states have internal predecessors, (574), 15 states have call successors, (15), 5 states have call predecessors, (15), 5 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-06 20:33:30,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-06 20:33:30,935 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 20:33:30,936 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-06 20:33:30,936 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 218 more)] === [2023-11-06 20:33:30,942 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 20:33:30,942 INFO L85 PathProgramCache]: Analyzing trace with hash 358541, now seen corresponding path program 1 times [2023-11-06 20:33:30,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-06 20:33:30,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1779746466] [2023-11-06 20:33:30,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 20:33:30,959 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 [2023-11-06 20:33:30,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8afbce-8d21-44d8-9684-655d57cc8448/bin/utaipan-verify-FOvIYxoinp/mathsat [2023-11-06 20:33:30,968 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8afbce-8d21-44d8-9684-655d57cc8448/bin/utaipan-verify-FOvIYxoinp/mathsat -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) [2023-11-06 20:33:31,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8afbce-8d21-44d8-9684-655d57cc8448/bin/utaipan-verify-FOvIYxoinp/mathsat -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 [2023-11-06 20:33:31,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 20:33:31,312 INFO L262 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 20:33:31,317 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 20:33:31,396 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 [2023-11-06 20:33:31,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 20:33:31,424 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 20:33:31,424 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-06 20:33:31,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1779746466] [2023-11-06 20:33:31,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1779746466] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 20:33:31,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 20:33:31,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 20:33:31,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635396109] [2023-11-06 20:33:31,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 20:33:31,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 20:33:31,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-06 20:33:31,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 20:33:31,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 20:33:31,466 INFO L87 Difference]: Start difference. First operand has 533 states, 291 states have (on average 1.9725085910652922) internal successors, (574), 514 states have internal predecessors, (574), 15 states have call successors, (15), 5 states have call predecessors, (15), 5 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) 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) [2023-11-06 20:33:35,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 20:33:35,145 INFO L93 Difference]: Finished difference Result 525 states and 579 transitions. [2023-11-06 20:33:35,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 20:33:35,149 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 [2023-11-06 20:33:35,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 20:33:35,171 INFO L225 Difference]: With dead ends: 525 [2023-11-06 20:33:35,178 INFO L226 Difference]: Without dead ends: 520 [2023-11-06 20:33:35,180 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 [2023-11-06 20:33:35,185 INFO L413 NwaCegarLoop]: 570 mSDtfsCounter, 15 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 916 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2023-11-06 20:33:35,186 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 916 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2023-11-06 20:33:35,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2023-11-06 20:33:35,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 520. [2023-11-06 20:33:35,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 520 states, 285 states have (on average 1.9263157894736842) internal successors, (549), 504 states have internal predecessors, (549), 13 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-06 20:33:35,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 573 transitions. [2023-11-06 20:33:35,287 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 573 transitions. Word has length 3 [2023-11-06 20:33:35,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 20:33:35,287 INFO L495 AbstractCegarLoop]: Abstraction has 520 states and 573 transitions. [2023-11-06 20:33:35,288 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) [2023-11-06 20:33:35,288 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 573 transitions. [2023-11-06 20:33:35,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-06 20:33:35,288 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 20:33:35,289 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-06 20:33:35,301 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8afbce-8d21-44d8-9684-655d57cc8448/bin/utaipan-verify-FOvIYxoinp/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-11-06 20:33:35,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8afbce-8d21-44d8-9684-655d57cc8448/bin/utaipan-verify-FOvIYxoinp/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 20:33:35,492 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 218 more)] === [2023-11-06 20:33:35,493 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 20:33:35,494 INFO L85 PathProgramCache]: Analyzing trace with hash 358540, now seen corresponding path program 1 times [2023-11-06 20:33:35,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-06 20:33:35,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1373032414] [2023-11-06 20:33:35,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 20:33:35,497 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 [2023-11-06 20:33:35,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8afbce-8d21-44d8-9684-655d57cc8448/bin/utaipan-verify-FOvIYxoinp/mathsat [2023-11-06 20:33:35,499 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8afbce-8d21-44d8-9684-655d57cc8448/bin/utaipan-verify-FOvIYxoinp/mathsat -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) [2023-11-06 20:33:35,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8afbce-8d21-44d8-9684-655d57cc8448/bin/utaipan-verify-FOvIYxoinp/mathsat -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 [2023-11-06 20:33:35,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 20:33:35,743 INFO L262 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 20:33:35,744 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 20:33:35,755 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 [2023-11-06 20:33:35,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 20:33:35,770 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 20:33:35,771 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-06 20:33:35,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1373032414] [2023-11-06 20:33:35,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1373032414] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 20:33:35,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 20:33:35,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 20:33:35,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97456789] [2023-11-06 20:33:35,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 20:33:35,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 20:33:35,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-06 20:33:35,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 20:33:35,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 20:33:35,774 INFO L87 Difference]: Start difference. First operand 520 states and 573 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) [2023-11-06 20:33:37,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 20:33:37,951 INFO L93 Difference]: Finished difference Result 571 states and 629 transitions. [2023-11-06 20:33:37,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 20:33:37,953 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 [2023-11-06 20:33:37,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 20:33:37,959 INFO L225 Difference]: With dead ends: 571 [2023-11-06 20:33:37,959 INFO L226 Difference]: Without dead ends: 571 [2023-11-06 20:33:37,960 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 [2023-11-06 20:33:37,961 INFO L413 NwaCegarLoop]: 519 mSDtfsCounter, 107 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 819 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-06 20:33:37,962 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 819 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-06 20:33:37,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2023-11-06 20:33:37,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 518. [2023-11-06 20:33:37,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 518 states, 285 states have (on average 1.919298245614035) internal successors, (547), 502 states have internal predecessors, (547), 13 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-06 20:33:37,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 571 transitions. [2023-11-06 20:33:37,992 INFO L78 Accepts]: Start accepts. Automaton has 518 states and 571 transitions. Word has length 3 [2023-11-06 20:33:37,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 20:33:37,992 INFO L495 AbstractCegarLoop]: Abstraction has 518 states and 571 transitions. [2023-11-06 20:33:37,993 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) [2023-11-06 20:33:37,993 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states and 571 transitions. [2023-11-06 20:33:37,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-06 20:33:37,993 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 20:33:37,994 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-06 20:33:38,014 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8afbce-8d21-44d8-9684-655d57cc8448/bin/utaipan-verify-FOvIYxoinp/mathsat -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 [2023-11-06 20:33:38,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8afbce-8d21-44d8-9684-655d57cc8448/bin/utaipan-verify-FOvIYxoinp/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 20:33:38,214 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 218 more)] === [2023-11-06 20:33:38,214 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 20:33:38,214 INFO L85 PathProgramCache]: Analyzing trace with hash 2091635657, now seen corresponding path program 1 times [2023-11-06 20:33:38,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-06 20:33:38,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2039479836] [2023-11-06 20:33:38,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 20:33:38,216 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 [2023-11-06 20:33:38,216 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8afbce-8d21-44d8-9684-655d57cc8448/bin/utaipan-verify-FOvIYxoinp/mathsat [2023-11-06 20:33:38,218 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8afbce-8d21-44d8-9684-655d57cc8448/bin/utaipan-verify-FOvIYxoinp/mathsat -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) [2023-11-06 20:33:38,233 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8afbce-8d21-44d8-9684-655d57cc8448/bin/utaipan-verify-FOvIYxoinp/mathsat -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 [2023-11-06 20:33:38,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 20:33:38,477 INFO L262 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 20:33:38,479 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 20:33:38,493 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 [2023-11-06 20:33:38,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 20:33:38,605 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 20:33:38,605 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-06 20:33:38,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2039479836] [2023-11-06 20:33:38,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2039479836] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 20:33:38,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 20:33:38,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 20:33:38,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667564866] [2023-11-06 20:33:38,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 20:33:38,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 20:33:38,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-06 20:33:38,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 20:33:38,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-06 20:33:38,607 INFO L87 Difference]: Start difference. First operand 518 states and 571 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)