./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test2-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591f4e23-8bbd-4724-967a-04cd759f549e/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591f4e23-8bbd-4724-967a-04cd759f549e/bin/uautomizer-verify-zZY32mL2XJ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591f4e23-8bbd-4724-967a-04cd759f549e/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591f4e23-8bbd-4724-967a-04cd759f549e/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test2-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591f4e23-8bbd-4724-967a-04cd759f549e/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591f4e23-8bbd-4724-967a-04cd759f549e/bin/uautomizer-verify-zZY32mL2XJ --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b879d991ca85089954916015c9838d386a5c85365dad0e09e537aeb772eaaaf8 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 22:25:09,526 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 22:25:09,678 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591f4e23-8bbd-4724-967a-04cd759f549e/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-23 22:25:09,685 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 22:25:09,686 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 22:25:09,734 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 22:25:09,734 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 22:25:09,735 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 22:25:09,736 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 22:25:09,736 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 22:25:09,737 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 22:25:09,738 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 22:25:09,739 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 22:25:09,739 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 22:25:09,740 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 22:25:09,740 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 22:25:09,741 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 22:25:09,741 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 22:25:09,742 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-23 22:25:09,742 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-23 22:25:09,743 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-23 22:25:09,743 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 22:25:09,744 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 22:25:09,744 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 22:25:09,745 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 22:25:09,745 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 22:25:09,746 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 22:25:09,746 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 22:25:09,747 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 22:25:09,747 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 22:25:09,747 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:25:09,748 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 22:25:09,748 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 22:25:09,749 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 22:25:09,749 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 22:25:09,749 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 22:25:09,750 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 22:25:09,750 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 22:25:09,751 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 22:25:09,751 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_591f4e23-8bbd-4724-967a-04cd759f549e/bin/uautomizer-verify-zZY32mL2XJ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591f4e23-8bbd-4724-967a-04cd759f549e/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b879d991ca85089954916015c9838d386a5c85365dad0e09e537aeb772eaaaf8 [2023-11-23 22:25:10,058 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 22:25:10,092 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 22:25:10,095 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 22:25:10,097 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 22:25:10,098 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 22:25:10,099 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591f4e23-8bbd-4724-967a-04cd759f549e/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test2-2.i [2023-11-23 22:25:13,195 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 22:25:13,653 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 22:25:13,654 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591f4e23-8bbd-4724-967a-04cd759f549e/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test2-2.i [2023-11-23 22:25:13,683 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591f4e23-8bbd-4724-967a-04cd759f549e/bin/uautomizer-verify-zZY32mL2XJ/data/19fd5682b/c7708666ee284499bf86448cb6e94540/FLAGe2ddd64cc [2023-11-23 22:25:13,703 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591f4e23-8bbd-4724-967a-04cd759f549e/bin/uautomizer-verify-zZY32mL2XJ/data/19fd5682b/c7708666ee284499bf86448cb6e94540 [2023-11-23 22:25:13,705 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 22:25:13,707 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 22:25:13,709 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 22:25:13,709 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 22:25:13,719 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 22:25:13,724 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:25:13" (1/1) ... [2023-11-23 22:25:13,725 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@732d9292 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:25:13, skipping insertion in model container [2023-11-23 22:25:13,726 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:25:13" (1/1) ... [2023-11-23 22:25:13,809 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 22:25:14,553 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:25:14,576 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) [2023-11-23 22:25:14,577 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6179adf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:25:14, skipping insertion in model container [2023-11-23 22:25:14,578 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 22:25:14,578 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-23 22:25:14,580 INFO L158 Benchmark]: Toolchain (without parser) took 872.36ms. Allocated memory is still 153.1MB. Free memory was 118.4MB in the beginning and 98.0MB in the end (delta: 20.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-23 22:25:14,581 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 115.3MB. Free memory is still 88.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 22:25:14,582 INFO L158 Benchmark]: CACSL2BoogieTranslator took 869.49ms. Allocated memory is still 153.1MB. Free memory was 118.4MB in the beginning and 98.0MB in the end (delta: 20.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-23 22:25:14,584 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 115.3MB. Free memory is still 88.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 869.49ms. Allocated memory is still 153.1MB. Free memory was 118.4MB in the beginning and 98.0MB in the end (delta: 20.4MB). Peak memory consumption was 21.0MB. 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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591f4e23-8bbd-4724-967a-04cd759f549e/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591f4e23-8bbd-4724-967a-04cd759f549e/bin/uautomizer-verify-zZY32mL2XJ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591f4e23-8bbd-4724-967a-04cd759f549e/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591f4e23-8bbd-4724-967a-04cd759f549e/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test2-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591f4e23-8bbd-4724-967a-04cd759f549e/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591f4e23-8bbd-4724-967a-04cd759f549e/bin/uautomizer-verify-zZY32mL2XJ --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b879d991ca85089954916015c9838d386a5c85365dad0e09e537aeb772eaaaf8 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 22:25:17,138 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 22:25:17,276 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591f4e23-8bbd-4724-967a-04cd759f549e/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-11-23 22:25:17,285 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 22:25:17,288 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 22:25:17,334 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 22:25:17,335 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 22:25:17,335 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 22:25:17,337 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 22:25:17,342 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 22:25:17,343 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 22:25:17,343 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 22:25:17,344 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 22:25:17,345 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 22:25:17,346 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 22:25:17,346 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 22:25:17,347 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 22:25:17,347 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 22:25:17,348 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-23 22:25:17,349 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-23 22:25:17,349 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-23 22:25:17,350 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 22:25:17,350 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 22:25:17,351 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 22:25:17,351 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 22:25:17,352 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 22:25:17,352 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 22:25:17,352 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 22:25:17,353 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 22:25:17,354 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 22:25:17,355 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 22:25:17,355 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 22:25:17,356 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:25:17,356 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 22:25:17,357 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 22:25:17,357 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-23 22:25:17,357 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 22:25:17,357 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 22:25:17,358 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 22:25:17,359 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 22:25:17,359 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 22:25:17,359 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-23 22:25:17,360 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_591f4e23-8bbd-4724-967a-04cd759f549e/bin/uautomizer-verify-zZY32mL2XJ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591f4e23-8bbd-4724-967a-04cd759f549e/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b879d991ca85089954916015c9838d386a5c85365dad0e09e537aeb772eaaaf8 [2023-11-23 22:25:17,754 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 22:25:17,778 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 22:25:17,782 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 22:25:17,784 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 22:25:17,784 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 22:25:17,786 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591f4e23-8bbd-4724-967a-04cd759f549e/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test2-2.i [2023-11-23 22:25:20,898 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 22:25:21,344 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 22:25:21,351 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591f4e23-8bbd-4724-967a-04cd759f549e/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test2-2.i [2023-11-23 22:25:21,385 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591f4e23-8bbd-4724-967a-04cd759f549e/bin/uautomizer-verify-zZY32mL2XJ/data/b96f24c8e/8d1a2d5ac179402e8b1acdee445b5dc4/FLAG0fd3dd8d4 [2023-11-23 22:25:21,407 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591f4e23-8bbd-4724-967a-04cd759f549e/bin/uautomizer-verify-zZY32mL2XJ/data/b96f24c8e/8d1a2d5ac179402e8b1acdee445b5dc4 [2023-11-23 22:25:21,414 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 22:25:21,416 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 22:25:21,419 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 22:25:21,420 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 22:25:21,425 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 22:25:21,426 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:25:21" (1/1) ... [2023-11-23 22:25:21,427 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5738676c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:25:21, skipping insertion in model container [2023-11-23 22:25:21,427 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:25:21" (1/1) ... [2023-11-23 22:25:21,510 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 22:25:22,182 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:25:22,198 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-23 22:25:22,212 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 22:25:22,303 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:25:22,309 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 22:25:22,483 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:25:22,545 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 22:25:22,553 INFO L206 MainTranslator]: Completed translation [2023-11-23 22:25:22,554 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:25:22 WrapperNode [2023-11-23 22:25:22,555 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 22:25:22,556 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 22:25:22,556 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 22:25:22,556 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 22:25:22,565 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:25:22" (1/1) ... [2023-11-23 22:25:22,620 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:25:22" (1/1) ... [2023-11-23 22:25:22,757 INFO L138 Inliner]: procedures = 211, calls = 288, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1060 [2023-11-23 22:25:22,758 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 22:25:22,758 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 22:25:22,759 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 22:25:22,759 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 22:25:22,772 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:25:22" (1/1) ... [2023-11-23 22:25:22,773 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:25:22" (1/1) ... [2023-11-23 22:25:22,801 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:25:22" (1/1) ... [2023-11-23 22:25:22,801 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:25:22" (1/1) ... [2023-11-23 22:25:22,854 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:25:22" (1/1) ... [2023-11-23 22:25:22,864 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:25:22" (1/1) ... [2023-11-23 22:25:22,870 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:25:22" (1/1) ... [2023-11-23 22:25:22,876 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:25:22" (1/1) ... [2023-11-23 22:25:22,887 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 22:25:22,888 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 22:25:22,888 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 22:25:22,889 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 22:25:22,889 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:25:22" (1/1) ... [2023-11-23 22:25:22,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:25:22,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591f4e23-8bbd-4724-967a-04cd759f549e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:25:22,931 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591f4e23-8bbd-4724-967a-04cd759f549e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 22:25:22,956 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591f4e23-8bbd-4724-967a-04cd759f549e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 22:25:22,982 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-11-23 22:25:22,982 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-11-23 22:25:22,983 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-23 22:25:22,983 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-23 22:25:22,983 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-23 22:25:22,983 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-23 22:25:22,983 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 22:25:22,983 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-23 22:25:22,984 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 22:25:22,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 22:25:22,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-23 22:25:22,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 22:25:22,986 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-23 22:25:22,986 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-23 22:25:22,986 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 22:25:22,987 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 22:25:22,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 22:25:22,987 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 22:25:22,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 22:25:23,260 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 22:25:23,262 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 22:25:23,308 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-23 22:25:28,278 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 22:25:28,504 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 22:25:28,504 INFO L309 CfgBuilder]: Removed 63 assume(true) statements. [2023-11-23 22:25:28,506 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:25:28 BoogieIcfgContainer [2023-11-23 22:25:28,506 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 22:25:28,508 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 22:25:28,509 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 22:25:28,512 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 22:25:28,513 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:25:21" (1/3) ... [2023-11-23 22:25:28,513 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ef940a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:25:28, skipping insertion in model container [2023-11-23 22:25:28,514 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:25:22" (2/3) ... [2023-11-23 22:25:28,515 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ef940a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:25:28, skipping insertion in model container [2023-11-23 22:25:28,515 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:25:28" (3/3) ... [2023-11-23 22:25:28,517 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test2-2.i [2023-11-23 22:25:28,537 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 22:25:28,537 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 535 error locations. [2023-11-23 22:25:28,621 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 22:25:28,628 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=PETRI_NET, 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;@36958bf7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 22:25:28,629 INFO L358 AbstractCegarLoop]: Starting to check reachability of 535 error locations. [2023-11-23 22:25:28,639 INFO L276 IsEmpty]: Start isEmpty. Operand has 984 states, 438 states have (on average 2.5136986301369864) internal successors, (1101), 977 states have internal predecessors, (1101), 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) [2023-11-23 22:25:28,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-23 22:25:28,653 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:25:28,653 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2023-11-23 22:25:28,654 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 532 more)] === [2023-11-23 22:25:28,661 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:25:28,661 INFO L85 PathProgramCache]: Analyzing trace with hash 55202, now seen corresponding path program 1 times [2023-11-23 22:25:28,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-23 22:25:28,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1649034743] [2023-11-23 22:25:28,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:25:28,676 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 22:25:28,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591f4e23-8bbd-4724-967a-04cd759f549e/bin/uautomizer-verify-zZY32mL2XJ/mathsat [2023-11-23 22:25:28,684 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591f4e23-8bbd-4724-967a-04cd759f549e/bin/uautomizer-verify-zZY32mL2XJ/mathsat -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) [2023-11-23 22:25:28,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591f4e23-8bbd-4724-967a-04cd759f549e/bin/uautomizer-verify-zZY32mL2XJ/mathsat -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 [2023-11-23 22:25:28,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:25:28,872 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 22:25:28,878 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:25:28,947 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-23 22:25:28,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:25:28,960 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:25:28,961 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-23 22:25:28,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1649034743] [2023-11-23 22:25:28,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1649034743] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:25:28,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:25:28,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-23 22:25:28,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093266953] [2023-11-23 22:25:28,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:25:28,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:25:28,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-23 22:25:29,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:25:29,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:25:29,016 INFO L87 Difference]: Start difference. First operand has 984 states, 438 states have (on average 2.5136986301369864) internal successors, (1101), 977 states have internal predecessors, (1101), 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 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2023-11-23 22:25:31,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:25:31,460 INFO L93 Difference]: Finished difference Result 1136 states and 1212 transitions. [2023-11-23 22:25:31,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:25:31,463 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2023-11-23 22:25:31,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:25:31,483 INFO L225 Difference]: With dead ends: 1136 [2023-11-23 22:25:31,484 INFO L226 Difference]: Without dead ends: 1135 [2023-11-23 22:25:31,485 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:25:31,489 INFO L413 NwaCegarLoop]: 546 mSDtfsCounter, 906 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 653 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 914 SdHoareTripleChecker+Valid, 674 SdHoareTripleChecker+Invalid, 669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 653 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-11-23 22:25:31,490 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [914 Valid, 674 Invalid, 669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 653 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-11-23 22:25:31,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1135 states. [2023-11-23 22:25:31,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1135 to 970. [2023-11-23 22:25:31,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 970 states, 441 states have (on average 2.312925170068027) internal successors, (1020), 963 states have internal predecessors, (1020), 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) [2023-11-23 22:25:31,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 970 states to 970 states and 1038 transitions. [2023-11-23 22:25:31,600 INFO L78 Accepts]: Start accepts. Automaton has 970 states and 1038 transitions. Word has length 2 [2023-11-23 22:25:31,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:25:31,601 INFO L495 AbstractCegarLoop]: Abstraction has 970 states and 1038 transitions. [2023-11-23 22:25:31,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2023-11-23 22:25:31,601 INFO L276 IsEmpty]: Start isEmpty. Operand 970 states and 1038 transitions. [2023-11-23 22:25:31,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-23 22:25:31,601 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:25:31,601 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2023-11-23 22:25:31,604 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591f4e23-8bbd-4724-967a-04cd759f549e/bin/uautomizer-verify-zZY32mL2XJ/mathsat -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 [2023-11-23 22:25:31,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591f4e23-8bbd-4724-967a-04cd759f549e/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 22:25:31,805 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 532 more)] === [2023-11-23 22:25:31,810 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:25:31,811 INFO L85 PathProgramCache]: Analyzing trace with hash 55203, now seen corresponding path program 1 times [2023-11-23 22:25:31,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-23 22:25:31,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1513708972] [2023-11-23 22:25:31,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:25:31,812 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 [2023-11-23 22:25:31,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591f4e23-8bbd-4724-967a-04cd759f549e/bin/uautomizer-verify-zZY32mL2XJ/mathsat [2023-11-23 22:25:31,813 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591f4e23-8bbd-4724-967a-04cd759f549e/bin/uautomizer-verify-zZY32mL2XJ/mathsat -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) [2023-11-23 22:25:31,846 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591f4e23-8bbd-4724-967a-04cd759f549e/bin/uautomizer-verify-zZY32mL2XJ/mathsat -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 [2023-11-23 22:25:31,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:25:31,934 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 22:25:31,937 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:25:31,952 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-23 22:25:31,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:25:31,964 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:25:31,965 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-23 22:25:31,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1513708972] [2023-11-23 22:25:31,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1513708972] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:25:31,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:25:31,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-23 22:25:31,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444154526] [2023-11-23 22:25:31,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:25:31,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:25:31,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-23 22:25:31,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:25:31,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:25:31,969 INFO L87 Difference]: Start difference. First operand 970 states and 1038 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2023-11-23 22:25:35,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:25:35,686 INFO L93 Difference]: Finished difference Result 1351 states and 1462 transitions. [2023-11-23 22:25:35,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:25:35,687 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2023-11-23 22:25:35,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:25:35,694 INFO L225 Difference]: With dead ends: 1351 [2023-11-23 22:25:35,695 INFO L226 Difference]: Without dead ends: 1351 [2023-11-23 22:25:35,695 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:25:35,696 INFO L413 NwaCegarLoop]: 774 mSDtfsCounter, 413 mSDsluCounter, 499 mSDsCounter, 0 mSdLazyCounter, 784 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 418 SdHoareTripleChecker+Valid, 1273 SdHoareTripleChecker+Invalid, 789 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 784 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2023-11-23 22:25:35,697 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [418 Valid, 1273 Invalid, 789 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 784 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2023-11-23 22:25:35,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1351 states. [2023-11-23 22:25:35,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1351 to 1082. [2023-11-23 22:25:35,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1082 states, 549 states have (on average 2.255009107468124) internal successors, (1238), 1075 states have internal predecessors, (1238), 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) [2023-11-23 22:25:35,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1082 states to 1082 states and 1266 transitions. [2023-11-23 22:25:35,750 INFO L78 Accepts]: Start accepts. Automaton has 1082 states and 1266 transitions. Word has length 2 [2023-11-23 22:25:35,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:25:35,751 INFO L495 AbstractCegarLoop]: Abstraction has 1082 states and 1266 transitions. [2023-11-23 22:25:35,751 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2023-11-23 22:25:35,751 INFO L276 IsEmpty]: Start isEmpty. Operand 1082 states and 1266 transitions. [2023-11-23 22:25:35,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-23 22:25:35,752 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:25:35,752 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-23 22:25:35,761 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591f4e23-8bbd-4724-967a-04cd759f549e/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-11-23 22:25:35,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591f4e23-8bbd-4724-967a-04cd759f549e/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 22:25:35,955 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 532 more)] === [2023-11-23 22:25:35,955 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:25:35,956 INFO L85 PathProgramCache]: Analyzing trace with hash -559486548, now seen corresponding path program 1 times [2023-11-23 22:25:35,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-23 22:25:35,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1682439401] [2023-11-23 22:25:35,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:25:35,957 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 [2023-11-23 22:25:35,957 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591f4e23-8bbd-4724-967a-04cd759f549e/bin/uautomizer-verify-zZY32mL2XJ/mathsat [2023-11-23 22:25:35,958 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591f4e23-8bbd-4724-967a-04cd759f549e/bin/uautomizer-verify-zZY32mL2XJ/mathsat -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) [2023-11-23 22:25:35,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591f4e23-8bbd-4724-967a-04cd759f549e/bin/uautomizer-verify-zZY32mL2XJ/mathsat -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 [2023-11-23 22:25:36,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:25:36,135 INFO L262 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 22:25:36,138 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:25:36,153 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-23 22:25:36,166 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-23 22:25:36,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 22:25:36,251 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2023-11-23 22:25:36,273 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-23 22:25:36,274 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2023-11-23 22:25:36,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:25:36,297 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:25:36,297 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-23 22:25:36,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1682439401] [2023-11-23 22:25:36,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1682439401] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:25:36,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:25:36,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:25:36,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454928114] [2023-11-23 22:25:36,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:25:36,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 22:25:36,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-23 22:25:36,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 22:25:36,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 22:25:36,301 INFO L87 Difference]: Start difference. First operand 1082 states and 1266 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:25:40,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:25:40,029 INFO L93 Difference]: Finished difference Result 1236 states and 1428 transitions. [2023-11-23 22:25:40,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 22:25:40,029 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-11-23 22:25:40,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:25:40,037 INFO L225 Difference]: With dead ends: 1236 [2023-11-23 22:25:40,037 INFO L226 Difference]: Without dead ends: 1236 [2023-11-23 22:25:40,037 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 22:25:40,039 INFO L413 NwaCegarLoop]: 283 mSDtfsCounter, 2045 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 969 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2053 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 997 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 969 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2023-11-23 22:25:40,039 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2053 Valid, 344 Invalid, 997 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 969 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2023-11-23 22:25:40,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1236 states. [2023-11-23 22:25:40,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1236 to 959. [2023-11-23 22:25:40,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 959 states, 441 states have (on average 2.2857142857142856) internal successors, (1008), 952 states have internal predecessors, (1008), 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) [2023-11-23 22:25:40,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 959 states to 959 states and 1026 transitions. [2023-11-23 22:25:40,071 INFO L78 Accepts]: Start accepts. Automaton has 959 states and 1026 transitions. Word has length 6 [2023-11-23 22:25:40,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:25:40,071 INFO L495 AbstractCegarLoop]: Abstraction has 959 states and 1026 transitions. [2023-11-23 22:25:40,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:25:40,072 INFO L276 IsEmpty]: Start isEmpty. Operand 959 states and 1026 transitions. [2023-11-23 22:25:40,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-23 22:25:40,073 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:25:40,073 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:25:40,080 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591f4e23-8bbd-4724-967a-04cd759f549e/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-11-23 22:25:40,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591f4e23-8bbd-4724-967a-04cd759f549e/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 22:25:40,277 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 532 more)] === [2023-11-23 22:25:40,281 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:25:40,281 INFO L85 PathProgramCache]: Analyzing trace with hash -164213821, now seen corresponding path program 1 times [2023-11-23 22:25:40,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-23 22:25:40,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [631940492] [2023-11-23 22:25:40,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:25:40,287 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 [2023-11-23 22:25:40,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591f4e23-8bbd-4724-967a-04cd759f549e/bin/uautomizer-verify-zZY32mL2XJ/mathsat [2023-11-23 22:25:40,288 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591f4e23-8bbd-4724-967a-04cd759f549e/bin/uautomizer-verify-zZY32mL2XJ/mathsat -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) [2023-11-23 22:25:40,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591f4e23-8bbd-4724-967a-04cd759f549e/bin/uautomizer-verify-zZY32mL2XJ/mathsat -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 [2023-11-23 22:25:40,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:25:40,443 INFO L262 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 22:25:40,445 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:25:40,455 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-23 22:25:40,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:25:40,470 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:25:40,470 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-23 22:25:40,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [631940492] [2023-11-23 22:25:40,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [631940492] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:25:40,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:25:40,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:25:40,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251622420] [2023-11-23 22:25:40,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:25:40,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:25:40,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-23 22:25:40,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:25:40,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:25:40,473 INFO L87 Difference]: Start difference. First operand 959 states and 1026 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 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) [2023-11-23 22:25:42,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:25:42,813 INFO L93 Difference]: Finished difference Result 1112 states and 1211 transitions. [2023-11-23 22:25:42,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:25:42,815 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 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 [2023-11-23 22:25:42,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:25:42,821 INFO L225 Difference]: With dead ends: 1112 [2023-11-23 22:25:42,821 INFO L226 Difference]: Without dead ends: 1112 [2023-11-23 22:25:42,821 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:25:42,822 INFO L413 NwaCegarLoop]: 743 mSDtfsCounter, 732 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 678 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 740 SdHoareTripleChecker+Valid, 984 SdHoareTripleChecker+Invalid, 729 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-11-23 22:25:42,823 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [740 Valid, 984 Invalid, 729 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 678 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-11-23 22:25:42,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1112 states. [2023-11-23 22:25:42,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1112 to 912. [2023-11-23 22:25:42,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 912 states, 441 states have (on average 2.179138321995465) internal successors, (961), 905 states have internal predecessors, (961), 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) [2023-11-23 22:25:42,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 912 states to 912 states and 979 transitions. [2023-11-23 22:25:42,849 INFO L78 Accepts]: Start accepts. Automaton has 912 states and 979 transitions. Word has length 7 [2023-11-23 22:25:42,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:25:42,849 INFO L495 AbstractCegarLoop]: Abstraction has 912 states and 979 transitions. [2023-11-23 22:25:42,849 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 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) [2023-11-23 22:25:42,850 INFO L276 IsEmpty]: Start isEmpty. Operand 912 states and 979 transitions. [2023-11-23 22:25:42,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-23 22:25:42,850 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:25:42,850 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:25:42,862 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591f4e23-8bbd-4724-967a-04cd759f549e/bin/uautomizer-verify-zZY32mL2XJ/mathsat -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 [2023-11-23 22:25:43,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591f4e23-8bbd-4724-967a-04cd759f549e/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 22:25:43,053 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 532 more)] === [2023-11-23 22:25:43,054 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:25:43,054 INFO L85 PathProgramCache]: Analyzing trace with hash -164213820, now seen corresponding path program 1 times [2023-11-23 22:25:43,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-23 22:25:43,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [233528700] [2023-11-23 22:25:43,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:25:43,054 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 [2023-11-23 22:25:43,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591f4e23-8bbd-4724-967a-04cd759f549e/bin/uautomizer-verify-zZY32mL2XJ/mathsat [2023-11-23 22:25:43,056 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591f4e23-8bbd-4724-967a-04cd759f549e/bin/uautomizer-verify-zZY32mL2XJ/mathsat -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) [2023-11-23 22:25:43,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591f4e23-8bbd-4724-967a-04cd759f549e/bin/uautomizer-verify-zZY32mL2XJ/mathsat -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 [2023-11-23 22:25:43,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:25:43,213 INFO L262 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 22:25:43,215 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:25:43,223 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-23 22:25:43,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:25:43,253 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:25:43,254 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-23 22:25:43,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [233528700] [2023-11-23 22:25:43,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [233528700] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:25:43,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:25:43,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:25:43,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084315136] [2023-11-23 22:25:43,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:25:43,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:25:43,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-23 22:25:43,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:25:43,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:25:43,256 INFO L87 Difference]: Start difference. First operand 912 states and 979 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 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) [2023-11-23 22:25:46,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:25:46,649 INFO L93 Difference]: Finished difference Result 1170 states and 1272 transitions. [2023-11-23 22:25:46,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:25:46,651 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 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 [2023-11-23 22:25:46,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:25:46,657 INFO L225 Difference]: With dead ends: 1170 [2023-11-23 22:25:46,657 INFO L226 Difference]: Without dead ends: 1170 [2023-11-23 22:25:46,658 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:25:46,659 INFO L413 NwaCegarLoop]: 900 mSDtfsCounter, 450 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 726 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 455 SdHoareTripleChecker+Valid, 1266 SdHoareTripleChecker+Invalid, 738 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 726 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-11-23 22:25:46,659 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [455 Valid, 1266 Invalid, 738 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 726 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-11-23 22:25:46,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1170 states. [2023-11-23 22:25:46,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1170 to 925. [2023-11-23 22:25:46,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 925 states, 464 states have (on average 2.1724137931034484) internal successors, (1008), 918 states have internal predecessors, (1008), 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) [2023-11-23 22:25:46,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 925 states to 925 states and 1026 transitions. [2023-11-23 22:25:46,686 INFO L78 Accepts]: Start accepts. Automaton has 925 states and 1026 transitions. Word has length 7 [2023-11-23 22:25:46,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:25:46,687 INFO L495 AbstractCegarLoop]: Abstraction has 925 states and 1026 transitions. [2023-11-23 22:25:46,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 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) [2023-11-23 22:25:46,687 INFO L276 IsEmpty]: Start isEmpty. Operand 925 states and 1026 transitions. [2023-11-23 22:25:46,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-23 22:25:46,688 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:25:46,688 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:25:46,697 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591f4e23-8bbd-4724-967a-04cd759f549e/bin/uautomizer-verify-zZY32mL2XJ/mathsat -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 [2023-11-23 22:25:46,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591f4e23-8bbd-4724-967a-04cd759f549e/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 22:25:46,891 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr428REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 532 more)] === [2023-11-23 22:25:46,892 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:25:46,892 INFO L85 PathProgramCache]: Analyzing trace with hash -864044681, now seen corresponding path program 1 times [2023-11-23 22:25:46,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-23 22:25:46,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1861418798] [2023-11-23 22:25:46,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:25:46,893 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 [2023-11-23 22:25:46,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591f4e23-8bbd-4724-967a-04cd759f549e/bin/uautomizer-verify-zZY32mL2XJ/mathsat [2023-11-23 22:25:46,894 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591f4e23-8bbd-4724-967a-04cd759f549e/bin/uautomizer-verify-zZY32mL2XJ/mathsat -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) [2023-11-23 22:25:46,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591f4e23-8bbd-4724-967a-04cd759f549e/bin/uautomizer-verify-zZY32mL2XJ/mathsat -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 [2023-11-23 22:25:47,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:25:47,054 INFO L262 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 22:25:47,057 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:25:47,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:25:47,124 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:25:47,124 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-23 22:25:47,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1861418798] [2023-11-23 22:25:47,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1861418798] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:25:47,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:25:47,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:25:47,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236213615] [2023-11-23 22:25:47,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:25:47,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:25:47,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-23 22:25:47,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:25:47,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:25:47,127 INFO L87 Difference]: Start difference. First operand 925 states and 1026 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 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) [2023-11-23 22:25:48,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:25:48,588 INFO L93 Difference]: Finished difference Result 1356 states and 1503 transitions. [2023-11-23 22:25:48,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:25:48,590 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 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 [2023-11-23 22:25:48,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:25:48,597 INFO L225 Difference]: With dead ends: 1356 [2023-11-23 22:25:48,597 INFO L226 Difference]: Without dead ends: 1356 [2023-11-23 22:25:48,597 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:25:48,598 INFO L413 NwaCegarLoop]: 902 mSDtfsCounter, 516 mSDsluCounter, 721 mSDsCounter, 0 mSdLazyCounter, 325 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 523 SdHoareTripleChecker+Valid, 1623 SdHoareTripleChecker+Invalid, 332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-23 22:25:48,599 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [523 Valid, 1623 Invalid, 332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 325 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-23 22:25:48,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1356 states. [2023-11-23 22:25:48,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1356 to 1079. [2023-11-23 22:25:48,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1079 states, 613 states have (on average 2.096247960848287) internal successors, (1285), 1072 states have internal predecessors, (1285), 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) [2023-11-23 22:25:48,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1079 states to 1079 states and 1313 transitions. [2023-11-23 22:25:48,629 INFO L78 Accepts]: Start accepts. Automaton has 1079 states and 1313 transitions. Word has length 10 [2023-11-23 22:25:48,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:25:48,630 INFO L495 AbstractCegarLoop]: Abstraction has 1079 states and 1313 transitions. [2023-11-23 22:25:48,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 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) [2023-11-23 22:25:48,630 INFO L276 IsEmpty]: Start isEmpty. Operand 1079 states and 1313 transitions. [2023-11-23 22:25:48,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-23 22:25:48,631 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:25:48,631 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:25:48,640 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591f4e23-8bbd-4724-967a-04cd759f549e/bin/uautomizer-verify-zZY32mL2XJ/mathsat -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 [2023-11-23 22:25:48,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591f4e23-8bbd-4724-967a-04cd759f549e/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 22:25:48,834 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr340REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 532 more)] === [2023-11-23 22:25:48,834 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:25:48,834 INFO L85 PathProgramCache]: Analyzing trace with hash -1791306123, now seen corresponding path program 1 times [2023-11-23 22:25:48,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-23 22:25:48,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [664724292] [2023-11-23 22:25:48,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:25:48,835 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 [2023-11-23 22:25:48,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591f4e23-8bbd-4724-967a-04cd759f549e/bin/uautomizer-verify-zZY32mL2XJ/mathsat [2023-11-23 22:25:48,836 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591f4e23-8bbd-4724-967a-04cd759f549e/bin/uautomizer-verify-zZY32mL2XJ/mathsat -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) [2023-11-23 22:25:48,837 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591f4e23-8bbd-4724-967a-04cd759f549e/bin/uautomizer-verify-zZY32mL2XJ/mathsat -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 [2023-11-23 22:25:48,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:25:48,989 INFO L262 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 22:25:48,991 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:25:49,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:25:49,001 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:25:49,001 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-23 22:25:49,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [664724292] [2023-11-23 22:25:49,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [664724292] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:25:49,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:25:49,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 22:25:49,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909322721] [2023-11-23 22:25:49,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:25:49,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:25:49,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-23 22:25:49,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:25:49,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:25:49,004 INFO L87 Difference]: Start difference. First operand 1079 states and 1313 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:25:49,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:25:49,957 INFO L93 Difference]: Finished difference Result 1025 states and 1233 transitions. [2023-11-23 22:25:49,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:25:49,959 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-11-23 22:25:49,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:25:49,964 INFO L225 Difference]: With dead ends: 1025 [2023-11-23 22:25:49,965 INFO L226 Difference]: Without dead ends: 1025 [2023-11-23 22:25:49,965 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:25:49,966 INFO L413 NwaCegarLoop]: 805 mSDtfsCounter, 70 mSDsluCounter, 756 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 1561 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-23 22:25:49,966 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 1561 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-23 22:25:49,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1025 states. [2023-11-23 22:25:49,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1025 to 1025. [2023-11-23 22:25:49,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1025 states, 583 states have (on average 2.0668953687821614) internal successors, (1205), 1018 states have internal predecessors, (1205), 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) [2023-11-23 22:25:49,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1025 states to 1025 states and 1233 transitions. [2023-11-23 22:25:49,993 INFO L78 Accepts]: Start accepts. Automaton has 1025 states and 1233 transitions. Word has length 12 [2023-11-23 22:25:49,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:25:49,993 INFO L495 AbstractCegarLoop]: Abstraction has 1025 states and 1233 transitions. [2023-11-23 22:25:49,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:25:49,994 INFO L276 IsEmpty]: Start isEmpty. Operand 1025 states and 1233 transitions. [2023-11-23 22:25:49,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-23 22:25:49,994 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:25:49,995 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:25:50,003 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591f4e23-8bbd-4724-967a-04cd759f549e/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2023-11-23 22:25:50,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591f4e23-8bbd-4724-967a-04cd759f549e/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 22:25:50,198 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr533ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 532 more)] === [2023-11-23 22:25:50,198 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:25:50,198 INFO L85 PathProgramCache]: Analyzing trace with hash -1008937855, now seen corresponding path program 1 times [2023-11-23 22:25:50,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-23 22:25:50,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [723529795] [2023-11-23 22:25:50,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:25:50,199 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 [2023-11-23 22:25:50,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591f4e23-8bbd-4724-967a-04cd759f549e/bin/uautomizer-verify-zZY32mL2XJ/mathsat [2023-11-23 22:25:50,200 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591f4e23-8bbd-4724-967a-04cd759f549e/bin/uautomizer-verify-zZY32mL2XJ/mathsat -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) [2023-11-23 22:25:50,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591f4e23-8bbd-4724-967a-04cd759f549e/bin/uautomizer-verify-zZY32mL2XJ/mathsat -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 [2023-11-23 22:25:50,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:25:50,404 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 22:25:50,407 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:25:50,416 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 22:25:50,417 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 22:25:50,418 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 22:25:50,422 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2023-11-23 22:25:50,480 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 22:25:50,481 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2023-11-23 22:25:50,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:25:50,501 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:25:50,501 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-23 22:25:50,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [723529795] [2023-11-23 22:25:50,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [723529795] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:25:50,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:25:50,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 22:25:50,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532216715] [2023-11-23 22:25:50,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:25:50,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 22:25:50,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-23 22:25:50,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 22:25:50,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 22:25:50,504 INFO L87 Difference]: Start difference. First operand 1025 states and 1233 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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) [2023-11-23 22:25:52,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:25:52,689 INFO L93 Difference]: Finished difference Result 1336 states and 1596 transitions. [2023-11-23 22:25:52,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 22:25:52,690 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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 13 [2023-11-23 22:25:52,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:25:52,697 INFO L225 Difference]: With dead ends: 1336 [2023-11-23 22:25:52,697 INFO L226 Difference]: Without dead ends: 1336 [2023-11-23 22:25:52,697 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 22:25:52,698 INFO L413 NwaCegarLoop]: 809 mSDtfsCounter, 318 mSDsluCounter, 1566 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 323 SdHoareTripleChecker+Valid, 2375 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-23 22:25:52,699 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [323 Valid, 2375 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 394 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-23 22:25:52,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1336 states. [2023-11-23 22:25:52,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1336 to 1024. [2023-11-23 22:25:52,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1024 states, 582 states have (on average 2.0670103092783507) internal successors, (1203), 1017 states have internal predecessors, (1203), 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) [2023-11-23 22:25:52,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1024 states to 1024 states and 1231 transitions. [2023-11-23 22:25:52,729 INFO L78 Accepts]: Start accepts. Automaton has 1024 states and 1231 transitions. Word has length 13 [2023-11-23 22:25:52,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:25:52,730 INFO L495 AbstractCegarLoop]: Abstraction has 1024 states and 1231 transitions. [2023-11-23 22:25:52,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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) [2023-11-23 22:25:52,730 INFO L276 IsEmpty]: Start isEmpty. Operand 1024 states and 1231 transitions. [2023-11-23 22:25:52,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-23 22:25:52,731 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:25:52,731 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:25:52,737 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591f4e23-8bbd-4724-967a-04cd759f549e/bin/uautomizer-verify-zZY32mL2XJ/mathsat -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 [2023-11-23 22:25:52,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591f4e23-8bbd-4724-967a-04cd759f549e/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 22:25:52,936 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 532 more)] === [2023-11-23 22:25:52,936 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:25:52,936 INFO L85 PathProgramCache]: Analyzing trace with hash -1206139973, now seen corresponding path program 1 times [2023-11-23 22:25:52,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-23 22:25:52,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [576467688] [2023-11-23 22:25:52,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:25:52,937 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 [2023-11-23 22:25:52,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591f4e23-8bbd-4724-967a-04cd759f549e/bin/uautomizer-verify-zZY32mL2XJ/mathsat [2023-11-23 22:25:52,938 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591f4e23-8bbd-4724-967a-04cd759f549e/bin/uautomizer-verify-zZY32mL2XJ/mathsat -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) [2023-11-23 22:25:52,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591f4e23-8bbd-4724-967a-04cd759f549e/bin/uautomizer-verify-zZY32mL2XJ/mathsat -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 [2023-11-23 22:25:53,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:25:53,126 INFO L262 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 22:25:53,128 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:25:53,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:25:53,138 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:25:53,138 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-23 22:25:53,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [576467688] [2023-11-23 22:25:53,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [576467688] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:25:53,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:25:53,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 22:25:53,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888182514] [2023-11-23 22:25:53,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:25:53,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:25:53,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-23 22:25:53,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:25:53,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:25:53,140 INFO L87 Difference]: Start difference. First operand 1024 states and 1231 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:25:54,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:25:54,097 INFO L93 Difference]: Finished difference Result 970 states and 1151 transitions. [2023-11-23 22:25:54,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:25:54,099 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2023-11-23 22:25:54,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:25:54,103 INFO L225 Difference]: With dead ends: 970 [2023-11-23 22:25:54,103 INFO L226 Difference]: Without dead ends: 970 [2023-11-23 22:25:54,103 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:25:54,104 INFO L413 NwaCegarLoop]: 768 mSDtfsCounter, 70 mSDsluCounter, 719 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 1487 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-23 22:25:54,104 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 1487 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-23 22:25:54,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 970 states. [2023-11-23 22:25:54,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 970 to 970. [2023-11-23 22:25:54,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 970 states, 552 states have (on average 2.0344202898550723) internal successors, (1123), 963 states have internal predecessors, (1123), 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) [2023-11-23 22:25:54,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 970 states to 970 states and 1151 transitions. [2023-11-23 22:25:54,130 INFO L78 Accepts]: Start accepts. Automaton has 970 states and 1151 transitions. Word has length 15 [2023-11-23 22:25:54,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:25:54,131 INFO L495 AbstractCegarLoop]: Abstraction has 970 states and 1151 transitions. [2023-11-23 22:25:54,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:25:54,131 INFO L276 IsEmpty]: Start isEmpty. Operand 970 states and 1151 transitions. [2023-11-23 22:25:54,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-23 22:25:54,132 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:25:54,132 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:25:54,140 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591f4e23-8bbd-4724-967a-04cd759f549e/bin/uautomizer-verify-zZY32mL2XJ/mathsat -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 [2023-11-23 22:25:54,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591f4e23-8bbd-4724-967a-04cd759f549e/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 22:25:54,336 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr38REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 532 more)] === [2023-11-23 22:25:54,336 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:25:54,337 INFO L85 PathProgramCache]: Analyzing trace with hash 540651572, now seen corresponding path program 1 times [2023-11-23 22:25:54,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-23 22:25:54,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [162021893] [2023-11-23 22:25:54,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:25:54,338 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 [2023-11-23 22:25:54,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591f4e23-8bbd-4724-967a-04cd759f549e/bin/uautomizer-verify-zZY32mL2XJ/mathsat [2023-11-23 22:25:54,339 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591f4e23-8bbd-4724-967a-04cd759f549e/bin/uautomizer-verify-zZY32mL2XJ/mathsat -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) [2023-11-23 22:25:54,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591f4e23-8bbd-4724-967a-04cd759f549e/bin/uautomizer-verify-zZY32mL2XJ/mathsat -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 [2023-11-23 22:25:54,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:25:54,542 INFO L262 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 22:25:54,544 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:25:54,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:25:54,566 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:25:54,566 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-23 22:25:54,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [162021893] [2023-11-23 22:25:54,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [162021893] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:25:54,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:25:54,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 22:25:54,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998376947] [2023-11-23 22:25:54,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:25:54,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 22:25:54,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-23 22:25:54,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 22:25:54,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 22:25:54,569 INFO L87 Difference]: Start difference. First operand 970 states and 1151 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:25:55,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:25:55,948 INFO L93 Difference]: Finished difference Result 956 states and 1109 transitions. [2023-11-23 22:25:55,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 22:25:55,950 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2023-11-23 22:25:55,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:25:55,955 INFO L225 Difference]: With dead ends: 956 [2023-11-23 22:25:55,955 INFO L226 Difference]: Without dead ends: 956 [2023-11-23 22:25:55,955 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 22:25:55,956 INFO L413 NwaCegarLoop]: 737 mSDtfsCounter, 58 mSDsluCounter, 1450 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 2187 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-23 22:25:55,957 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 2187 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-23 22:25:55,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 956 states. [2023-11-23 22:25:55,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 956 to 954. [2023-11-23 22:25:55,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 954 states, 550 states have (on average 1.961818181818182) internal successors, (1079), 947 states have internal predecessors, (1079), 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) [2023-11-23 22:25:55,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 954 states to 954 states and 1107 transitions. [2023-11-23 22:25:55,981 INFO L78 Accepts]: Start accepts. Automaton has 954 states and 1107 transitions. Word has length 17 [2023-11-23 22:25:55,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:25:55,981 INFO L495 AbstractCegarLoop]: Abstraction has 954 states and 1107 transitions. [2023-11-23 22:25:55,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:25:55,982 INFO L276 IsEmpty]: Start isEmpty. Operand 954 states and 1107 transitions. [2023-11-23 22:25:55,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-23 22:25:55,982 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:25:55,983 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] [2023-11-23 22:25:55,989 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591f4e23-8bbd-4724-967a-04cd759f549e/bin/uautomizer-verify-zZY32mL2XJ/mathsat -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 [2023-11-23 22:25:56,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591f4e23-8bbd-4724-967a-04cd759f549e/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 22:25:56,187 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr52REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 532 more)] === [2023-11-23 22:25:56,187 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:25:56,187 INFO L85 PathProgramCache]: Analyzing trace with hash 1465329026, now seen corresponding path program 1 times [2023-11-23 22:25:56,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-23 22:25:56,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [298057509] [2023-11-23 22:25:56,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:25:56,188 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 [2023-11-23 22:25:56,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591f4e23-8bbd-4724-967a-04cd759f549e/bin/uautomizer-verify-zZY32mL2XJ/mathsat [2023-11-23 22:25:56,189 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591f4e23-8bbd-4724-967a-04cd759f549e/bin/uautomizer-verify-zZY32mL2XJ/mathsat -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) [2023-11-23 22:25:56,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591f4e23-8bbd-4724-967a-04cd759f549e/bin/uautomizer-verify-zZY32mL2XJ/mathsat -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 [2023-11-23 22:25:56,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:25:56,391 INFO L262 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 22:25:56,394 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:25:56,401 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-23 22:25:56,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:25:56,513 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:25:56,514 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-23 22:25:56,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [298057509] [2023-11-23 22:25:56,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [298057509] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:25:56,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:25:56,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 22:25:56,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335725576] [2023-11-23 22:25:56,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:25:56,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 22:25:56,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-23 22:25:56,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 22:25:56,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 22:25:56,516 INFO L87 Difference]: Start difference. First operand 954 states and 1107 transitions. Second operand has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 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) [2023-11-23 22:25:59,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:25:59,192 INFO L93 Difference]: Finished difference Result 1178 states and 1407 transitions. [2023-11-23 22:25:59,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 22:25:59,193 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 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 31 [2023-11-23 22:25:59,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:25:59,200 INFO L225 Difference]: With dead ends: 1178 [2023-11-23 22:25:59,200 INFO L226 Difference]: Without dead ends: 1178 [2023-11-23 22:25:59,200 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 22:25:59,201 INFO L413 NwaCegarLoop]: 489 mSDtfsCounter, 625 mSDsluCounter, 568 mSDsCounter, 0 mSdLazyCounter, 1021 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 633 SdHoareTripleChecker+Valid, 1057 SdHoareTripleChecker+Invalid, 1029 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1021 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-11-23 22:25:59,201 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [633 Valid, 1057 Invalid, 1029 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1021 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-11-23 22:25:59,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1178 states. [2023-11-23 22:25:59,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1178 to 950. [2023-11-23 22:25:59,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 950 states, 550 states have (on average 1.9472727272727273) internal successors, (1071), 943 states have internal predecessors, (1071), 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) [2023-11-23 22:25:59,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 950 states to 950 states and 1099 transitions. [2023-11-23 22:25:59,226 INFO L78 Accepts]: Start accepts. Automaton has 950 states and 1099 transitions. Word has length 31 [2023-11-23 22:25:59,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:25:59,227 INFO L495 AbstractCegarLoop]: Abstraction has 950 states and 1099 transitions. [2023-11-23 22:25:59,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 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) [2023-11-23 22:25:59,227 INFO L276 IsEmpty]: Start isEmpty. Operand 950 states and 1099 transitions. [2023-11-23 22:25:59,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-23 22:25:59,228 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:25:59,229 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] [2023-11-23 22:25:59,237 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591f4e23-8bbd-4724-967a-04cd759f549e/bin/uautomizer-verify-zZY32mL2XJ/mathsat -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 [2023-11-23 22:25:59,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591f4e23-8bbd-4724-967a-04cd759f549e/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 22:25:59,432 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr53REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 532 more)] === [2023-11-23 22:25:59,433 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:25:59,433 INFO L85 PathProgramCache]: Analyzing trace with hash 1465329027, now seen corresponding path program 1 times [2023-11-23 22:25:59,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-23 22:25:59,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2100034866] [2023-11-23 22:25:59,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:25:59,434 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 [2023-11-23 22:25:59,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591f4e23-8bbd-4724-967a-04cd759f549e/bin/uautomizer-verify-zZY32mL2XJ/mathsat [2023-11-23 22:25:59,435 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591f4e23-8bbd-4724-967a-04cd759f549e/bin/uautomizer-verify-zZY32mL2XJ/mathsat -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) [2023-11-23 22:25:59,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591f4e23-8bbd-4724-967a-04cd759f549e/bin/uautomizer-verify-zZY32mL2XJ/mathsat -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 [2023-11-23 22:25:59,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:25:59,657 INFO L262 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-23 22:25:59,660 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:25:59,669 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-23 22:25:59,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:25:59,940 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:25:59,940 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-23 22:25:59,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2100034866] [2023-11-23 22:25:59,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2100034866] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:25:59,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:25:59,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 22:25:59,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866018787] [2023-11-23 22:25:59,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:25:59,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 22:25:59,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-23 22:25:59,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 22:25:59,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 22:25:59,942 INFO L87 Difference]: Start difference. First operand 950 states and 1099 transitions. Second operand has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 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) [2023-11-23 22:26:04,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:26:04,037 INFO L93 Difference]: Finished difference Result 1219 states and 1413 transitions. [2023-11-23 22:26:04,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 22:26:04,038 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 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 31 [2023-11-23 22:26:04,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:26:04,045 INFO L225 Difference]: With dead ends: 1219 [2023-11-23 22:26:04,045 INFO L226 Difference]: Without dead ends: 1219 [2023-11-23 22:26:04,045 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 22:26:04,046 INFO L413 NwaCegarLoop]: 875 mSDtfsCounter, 345 mSDsluCounter, 871 mSDsCounter, 0 mSdLazyCounter, 1196 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 350 SdHoareTripleChecker+Valid, 1746 SdHoareTripleChecker+Invalid, 1199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2023-11-23 22:26:04,046 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [350 Valid, 1746 Invalid, 1199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1196 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2023-11-23 22:26:04,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1219 states. [2023-11-23 22:26:04,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1219 to 946. [2023-11-23 22:26:04,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 946 states, 550 states have (on average 1.9327272727272726) internal successors, (1063), 939 states have internal predecessors, (1063), 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) [2023-11-23 22:26:04,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 946 states to 946 states and 1091 transitions. [2023-11-23 22:26:04,073 INFO L78 Accepts]: Start accepts. Automaton has 946 states and 1091 transitions. Word has length 31 [2023-11-23 22:26:04,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:26:04,073 INFO L495 AbstractCegarLoop]: Abstraction has 946 states and 1091 transitions. [2023-11-23 22:26:04,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 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) [2023-11-23 22:26:04,095 INFO L276 IsEmpty]: Start isEmpty. Operand 946 states and 1091 transitions. [2023-11-23 22:26:04,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-23 22:26:04,097 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:26:04,097 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] [2023-11-23 22:26:04,107 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591f4e23-8bbd-4724-967a-04cd759f549e/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2023-11-23 22:26:04,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591f4e23-8bbd-4724-967a-04cd759f549e/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 22:26:04,298 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 532 more)] === [2023-11-23 22:26:04,298 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:26:04,298 INFO L85 PathProgramCache]: Analyzing trace with hash -1206683468, now seen corresponding path program 1 times [2023-11-23 22:26:04,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-23 22:26:04,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [114160453] [2023-11-23 22:26:04,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:26:04,299 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 [2023-11-23 22:26:04,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591f4e23-8bbd-4724-967a-04cd759f549e/bin/uautomizer-verify-zZY32mL2XJ/mathsat [2023-11-23 22:26:04,300 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591f4e23-8bbd-4724-967a-04cd759f549e/bin/uautomizer-verify-zZY32mL2XJ/mathsat -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) [2023-11-23 22:26:04,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591f4e23-8bbd-4724-967a-04cd759f549e/bin/uautomizer-verify-zZY32mL2XJ/mathsat -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 [2023-11-23 22:26:04,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:26:04,565 INFO L262 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 22:26:04,569 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:26:04,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:26:04,648 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:26:04,648 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-23 22:26:04,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [114160453] [2023-11-23 22:26:04,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [114160453] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:26:04,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:26:04,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 22:26:04,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684339953] [2023-11-23 22:26:04,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:26:04,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 22:26:04,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-23 22:26:04,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 22:26:04,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 22:26:04,651 INFO L87 Difference]: Start difference. First operand 946 states and 1091 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) [2023-11-23 22:26:05,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:26:05,888 INFO L93 Difference]: Finished difference Result 934 states and 1071 transitions. [2023-11-23 22:26:05,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 22:26:05,890 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 [2023-11-23 22:26:05,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:26:05,894 INFO L225 Difference]: With dead ends: 934 [2023-11-23 22:26:05,894 INFO L226 Difference]: Without dead ends: 934 [2023-11-23 22:26:05,895 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 [2023-11-23 22:26:05,895 INFO L413 NwaCegarLoop]: 731 mSDtfsCounter, 23 mSDsluCounter, 1442 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 2173 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-23 22:26:05,896 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 2173 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-23 22:26:05,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 934 states. [2023-11-23 22:26:05,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 934 to 934. [2023-11-23 22:26:05,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 934 states, 538 states have (on average 1.9386617100371748) internal successors, (1043), 927 states have internal predecessors, (1043), 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) [2023-11-23 22:26:05,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 934 states to 934 states and 1071 transitions. [2023-11-23 22:26:05,919 INFO L78 Accepts]: Start accepts. Automaton has 934 states and 1071 transitions. Word has length 50 [2023-11-23 22:26:05,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:26:05,919 INFO L495 AbstractCegarLoop]: Abstraction has 934 states and 1071 transitions. [2023-11-23 22:26:05,920 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) [2023-11-23 22:26:05,920 INFO L276 IsEmpty]: Start isEmpty. Operand 934 states and 1071 transitions. [2023-11-23 22:26:05,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-23 22:26:05,922 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:26:05,922 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] [2023-11-23 22:26:05,928 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591f4e23-8bbd-4724-967a-04cd759f549e/bin/uautomizer-verify-zZY32mL2XJ/mathsat -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 [2023-11-23 22:26:06,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591f4e23-8bbd-4724-967a-04cd759f549e/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 22:26:06,128 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 532 more)] === [2023-11-23 22:26:06,128 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:26:06,128 INFO L85 PathProgramCache]: Analyzing trace with hash 17560563, now seen corresponding path program 1 times [2023-11-23 22:26:06,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-23 22:26:06,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1772039299] [2023-11-23 22:26:06,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:26:06,130 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 [2023-11-23 22:26:06,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591f4e23-8bbd-4724-967a-04cd759f549e/bin/uautomizer-verify-zZY32mL2XJ/mathsat [2023-11-23 22:26:06,131 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591f4e23-8bbd-4724-967a-04cd759f549e/bin/uautomizer-verify-zZY32mL2XJ/mathsat -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) [2023-11-23 22:26:06,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_591f4e23-8bbd-4724-967a-04cd759f549e/bin/uautomizer-verify-zZY32mL2XJ/mathsat -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 [2023-11-23 22:26:06,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:26:06,533 INFO L262 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 22:26:06,538 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:26:06,548 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-23 22:26:06,557 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-23 22:26:07,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 22:26:07,268 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2023-11-23 22:26:07,286 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-23 22:26:07,287 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2023-11-23 22:26:07,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:26:07,306 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:26:07,306 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-23 22:26:07,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1772039299] [2023-11-23 22:26:07,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1772039299] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:26:07,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:26:07,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 22:26:07,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846768600] [2023-11-23 22:26:07,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:26:07,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 22:26:07,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-23 22:26:07,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 22:26:07,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 22:26:07,309 INFO L87 Difference]: Start difference. First operand 934 states and 1071 transitions. Second operand has 4 states, 3 states have (on average 18.0) internal successors, (54), 4 states have internal predecessors, (54), 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)