./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 9bd2c7ff 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_e1bbe64a-7467-4f81-a139-a24958bdc5a2/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bbe64a-7467-4f81-a139-a24958bdc5a2/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bbe64a-7467-4f81-a139-a24958bdc5a2/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bbe64a-7467-4f81-a139-a24958bdc5a2/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bbe64a-7467-4f81-a139-a24958bdc5a2/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bbe64a-7467-4f81-a139-a24958bdc5a2/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d11f955236406002afd026860cf5cae6834e26918579de44c447a4ac30cb678d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:55:07,589 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:55:07,674 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bbe64a-7467-4f81-a139-a24958bdc5a2/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2023-11-19 07:55:07,680 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:55:07,681 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:55:07,728 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:55:07,729 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:55:07,730 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:55:07,731 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:55:07,736 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:55:07,737 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:55:07,737 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:55:07,737 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:55:07,740 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:55:07,740 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:55:07,740 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:55:07,741 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:55:07,741 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:55:07,742 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:55:07,742 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:55:07,742 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 07:55:07,743 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 07:55:07,743 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:55:07,743 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:55:07,744 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 07:55:07,744 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:55:07,745 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:55:07,745 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:55:07,745 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:55:07,746 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:55:07,747 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:55:07,747 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:55:07,747 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:55:07,748 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:55:07,748 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:55:07,748 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:55:07,748 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:55:07,748 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:55:07,749 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:55:07,749 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:55:07,749 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:55:07,749 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_e1bbe64a-7467-4f81-a139-a24958bdc5a2/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bbe64a-7467-4f81-a139-a24958bdc5a2/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d11f955236406002afd026860cf5cae6834e26918579de44c447a4ac30cb678d [2023-11-19 07:55:08,060 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:55:08,082 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:55:08,084 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:55:08,085 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:55:08,086 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:55:08,087 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bbe64a-7467-4f81-a139-a24958bdc5a2/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-2.i [2023-11-19 07:55:11,010 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:55:11,409 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:55:11,410 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bbe64a-7467-4f81-a139-a24958bdc5a2/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-2.i [2023-11-19 07:55:11,432 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bbe64a-7467-4f81-a139-a24958bdc5a2/bin/uautomizer-verify-uCwYo4JHxu/data/046a4c880/53c083582fc84fec9c2bdb710d839a31/FLAGb148a69a3 [2023-11-19 07:55:11,454 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bbe64a-7467-4f81-a139-a24958bdc5a2/bin/uautomizer-verify-uCwYo4JHxu/data/046a4c880/53c083582fc84fec9c2bdb710d839a31 [2023-11-19 07:55:11,461 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:55:11,463 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:55:11,476 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:55:11,476 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:55:11,481 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:55:11,482 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:55:11" (1/1) ... [2023-11-19 07:55:11,483 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63a12493 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:11, skipping insertion in model container [2023-11-19 07:55:11,483 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:55:11" (1/1) ... [2023-11-19 07:55:11,560 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:55:12,250 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:55:12,273 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) [2023-11-19 07:55:12,274 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@68e86ad5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:12, skipping insertion in model container [2023-11-19 07:55:12,274 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:55:12,275 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-19 07:55:12,277 INFO L158 Benchmark]: Toolchain (without parser) took 812.91ms. Allocated memory is still 172.0MB. Free memory was 139.2MB in the beginning and 121.8MB in the end (delta: 17.4MB). Peak memory consumption was 17.6MB. Max. memory is 16.1GB. [2023-11-19 07:55:12,277 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 127.9MB. Free memory is still 100.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:55:12,278 INFO L158 Benchmark]: CACSL2BoogieTranslator took 798.58ms. Allocated memory is still 172.0MB. Free memory was 141.6MB in the beginning and 121.8MB in the end (delta: 19.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-19 07:55:12,280 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 127.9MB. Free memory is still 100.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 798.58ms. Allocated memory is still 172.0MB. Free memory was 141.6MB in the beginning and 121.8MB in the end (delta: 19.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 736]: 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_e1bbe64a-7467-4f81-a139-a24958bdc5a2/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bbe64a-7467-4f81-a139-a24958bdc5a2/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bbe64a-7467-4f81-a139-a24958bdc5a2/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bbe64a-7467-4f81-a139-a24958bdc5a2/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bbe64a-7467-4f81-a139-a24958bdc5a2/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bbe64a-7467-4f81-a139-a24958bdc5a2/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d11f955236406002afd026860cf5cae6834e26918579de44c447a4ac30cb678d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:55:14,695 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:55:14,821 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bbe64a-7467-4f81-a139-a24958bdc5a2/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2023-11-19 07:55:14,830 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:55:14,834 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:55:14,881 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:55:14,882 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:55:14,883 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:55:14,884 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:55:14,888 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:55:14,889 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:55:14,889 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:55:14,890 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:55:14,892 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:55:14,892 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:55:14,893 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:55:14,893 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:55:14,893 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:55:14,894 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:55:14,895 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:55:14,895 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 07:55:14,896 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 07:55:14,896 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:55:14,896 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:55:14,897 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 07:55:14,897 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 07:55:14,897 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 07:55:14,898 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:55:14,898 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:55:14,899 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:55:14,900 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:55:14,900 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:55:14,900 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:55:14,901 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:55:14,901 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:55:14,901 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:55:14,901 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:55:14,902 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-19 07:55:14,902 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 07:55:14,903 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:55:14,903 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:55:14,903 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:55:14,903 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-19 07:55:14,904 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:55:14,904 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_e1bbe64a-7467-4f81-a139-a24958bdc5a2/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bbe64a-7467-4f81-a139-a24958bdc5a2/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d11f955236406002afd026860cf5cae6834e26918579de44c447a4ac30cb678d [2023-11-19 07:55:15,304 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:55:15,328 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:55:15,332 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:55:15,334 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:55:15,334 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:55:15,336 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bbe64a-7467-4f81-a139-a24958bdc5a2/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-2.i [2023-11-19 07:55:18,469 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:55:18,944 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:55:18,949 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bbe64a-7467-4f81-a139-a24958bdc5a2/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-2.i [2023-11-19 07:55:18,979 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bbe64a-7467-4f81-a139-a24958bdc5a2/bin/uautomizer-verify-uCwYo4JHxu/data/c4b6c8a25/e96cc3ece14f4c578296f71ea32fdb34/FLAGe4ff521e6 [2023-11-19 07:55:18,993 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bbe64a-7467-4f81-a139-a24958bdc5a2/bin/uautomizer-verify-uCwYo4JHxu/data/c4b6c8a25/e96cc3ece14f4c578296f71ea32fdb34 [2023-11-19 07:55:18,995 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:55:18,997 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:55:18,998 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:55:18,999 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:55:19,004 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:55:19,004 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:55:18" (1/1) ... [2023-11-19 07:55:19,005 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38d116c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:19, skipping insertion in model container [2023-11-19 07:55:19,006 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:55:18" (1/1) ... [2023-11-19 07:55:19,079 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:55:19,670 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:55:19,699 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-19 07:55:19,715 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:55:19,851 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:55:19,870 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:55:19,991 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:55:20,075 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:55:20,083 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:55:20,084 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:20 WrapperNode [2023-11-19 07:55:20,084 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:55:20,085 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:55:20,085 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:55:20,086 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:55:20,093 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:20" (1/1) ... [2023-11-19 07:55:20,143 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:20" (1/1) ... [2023-11-19 07:55:20,252 INFO L138 Inliner]: procedures = 180, calls = 338, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1190 [2023-11-19 07:55:20,252 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:55:20,253 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:55:20,254 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:55:20,254 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:55:20,263 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:20" (1/1) ... [2023-11-19 07:55:20,264 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:20" (1/1) ... [2023-11-19 07:55:20,289 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:20" (1/1) ... [2023-11-19 07:55:20,289 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:20" (1/1) ... [2023-11-19 07:55:20,356 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:20" (1/1) ... [2023-11-19 07:55:20,368 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:20" (1/1) ... [2023-11-19 07:55:20,373 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:20" (1/1) ... [2023-11-19 07:55:20,380 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:20" (1/1) ... [2023-11-19 07:55:20,400 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:55:20,402 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:55:20,402 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:55:20,403 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:55:20,404 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:20" (1/1) ... [2023-11-19 07:55:20,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:55:20,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bbe64a-7467-4f81-a139-a24958bdc5a2/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:55:20,440 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bbe64a-7467-4f81-a139-a24958bdc5a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:55:20,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bbe64a-7467-4f81-a139-a24958bdc5a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:55:20,494 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-11-19 07:55:20,494 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-11-19 07:55:20,495 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-19 07:55:20,495 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-19 07:55:20,495 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-19 07:55:20,495 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-19 07:55:20,496 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-19 07:55:20,497 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-19 07:55:20,498 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 07:55:20,498 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:55:20,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 07:55:20,499 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:55:20,499 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-19 07:55:20,499 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 07:55:20,499 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:55:20,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-19 07:55:20,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 07:55:20,500 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:55:20,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:55:20,823 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:55:20,827 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:55:29,004 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:55:29,022 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:55:29,023 INFO L302 CfgBuilder]: Removed 72 assume(true) statements. [2023-11-19 07:55:29,035 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:55:29 BoogieIcfgContainer [2023-11-19 07:55:29,036 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:55:29,038 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:55:29,039 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:55:29,043 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:55:29,043 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:55:18" (1/3) ... [2023-11-19 07:55:29,044 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c7da1ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:55:29, skipping insertion in model container [2023-11-19 07:55:29,044 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:20" (2/3) ... [2023-11-19 07:55:29,045 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c7da1ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:55:29, skipping insertion in model container [2023-11-19 07:55:29,046 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:55:29" (3/3) ... [2023-11-19 07:55:29,047 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test3-2.i [2023-11-19 07:55:29,087 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:55:29,087 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-19 07:55:29,142 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:55:29,148 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;@4ddbd1f0, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:55:29,149 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-19 07:55:29,155 INFO L276 IsEmpty]: Start isEmpty. Operand has 244 states, 228 states have (on average 1.662280701754386) internal successors, (379), 237 states have internal predecessors, (379), 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) [2023-11-19 07:55:29,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-19 07:55:29,165 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:55:29,165 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:55:29,166 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 07:55:29,171 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:55:29,172 INFO L85 PathProgramCache]: Analyzing trace with hash -1550073224, now seen corresponding path program 1 times [2023-11-19 07:55:29,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:55:29,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [275839139] [2023-11-19 07:55:29,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:55:29,191 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 [2023-11-19 07:55:29,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bbe64a-7467-4f81-a139-a24958bdc5a2/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:55:29,196 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bbe64a-7467-4f81-a139-a24958bdc5a2/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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) [2023-11-19 07:55:29,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bbe64a-7467-4f81-a139-a24958bdc5a2/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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 [2023-11-19 07:55:29,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:29,471 INFO L262 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 07:55:29,478 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:55:29,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:55:29,506 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:55:29,507 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:55:29,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [275839139] [2023-11-19 07:55:29,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [275839139] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:55:29,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:55:29,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:55:29,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662461745] [2023-11-19 07:55:29,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:55:29,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:55:29,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:55:29,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:55:29,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:55:29,568 INFO L87 Difference]: Start difference. First operand has 244 states, 228 states have (on average 1.662280701754386) internal successors, (379), 237 states have internal predecessors, (379), 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 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:55:29,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:55:29,609 INFO L93 Difference]: Finished difference Result 242 states and 318 transitions. [2023-11-19 07:55:29,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:55:29,611 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-11-19 07:55:29,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:55:29,624 INFO L225 Difference]: With dead ends: 242 [2023-11-19 07:55:29,624 INFO L226 Difference]: Without dead ends: 240 [2023-11-19 07:55:29,626 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:55:29,637 INFO L413 NwaCegarLoop]: 318 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:55:29,638 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:55:29,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2023-11-19 07:55:29,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 240. [2023-11-19 07:55:29,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 226 states have (on average 1.3185840707964602) internal successors, (298), 233 states have internal predecessors, (298), 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) [2023-11-19 07:55:29,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 316 transitions. [2023-11-19 07:55:29,699 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 316 transitions. Word has length 11 [2023-11-19 07:55:29,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:55:29,699 INFO L495 AbstractCegarLoop]: Abstraction has 240 states and 316 transitions. [2023-11-19 07:55:29,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:55:29,700 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 316 transitions. [2023-11-19 07:55:29,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-19 07:55:29,702 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:55:29,702 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:55:29,706 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bbe64a-7467-4f81-a139-a24958bdc5a2/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-19 07:55:29,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bbe64a-7467-4f81-a139-a24958bdc5a2/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:55:29,906 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 07:55:29,907 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:55:29,907 INFO L85 PathProgramCache]: Analyzing trace with hash 124150477, now seen corresponding path program 1 times [2023-11-19 07:55:29,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:55:29,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [891697211] [2023-11-19 07:55:29,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:55:29,908 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 [2023-11-19 07:55:29,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bbe64a-7467-4f81-a139-a24958bdc5a2/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:55:29,917 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bbe64a-7467-4f81-a139-a24958bdc5a2/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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) [2023-11-19 07:55:29,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bbe64a-7467-4f81-a139-a24958bdc5a2/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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 [2023-11-19 07:55:30,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:30,143 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 07:55:30,146 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:55:30,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:55:30,303 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:55:30,304 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:55:30,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [891697211] [2023-11-19 07:55:30,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [891697211] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:55:30,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:55:30,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:55:30,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278479116] [2023-11-19 07:55:30,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:55:30,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:55:30,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:55:30,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:55:30,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:55:30,311 INFO L87 Difference]: Start difference. First operand 240 states and 316 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:55:32,627 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 07:55:35,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:55:35,274 INFO L93 Difference]: Finished difference Result 387 states and 507 transitions. [2023-11-19 07:55:35,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:55:35,277 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2023-11-19 07:55:35,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:55:35,281 INFO L225 Difference]: With dead ends: 387 [2023-11-19 07:55:35,281 INFO L226 Difference]: Without dead ends: 387 [2023-11-19 07:55:35,281 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:55:35,283 INFO L413 NwaCegarLoop]: 322 mSDtfsCounter, 195 mSDsluCounter, 557 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 879 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2023-11-19 07:55:35,284 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 879 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 110 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2023-11-19 07:55:35,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2023-11-19 07:55:35,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 354. [2023-11-19 07:55:35,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 340 states have (on average 1.3147058823529412) internal successors, (447), 347 states have internal predecessors, (447), 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) [2023-11-19 07:55:35,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 465 transitions. [2023-11-19 07:55:35,314 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 465 transitions. Word has length 16 [2023-11-19 07:55:35,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:55:35,314 INFO L495 AbstractCegarLoop]: Abstraction has 354 states and 465 transitions. [2023-11-19 07:55:35,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:55:35,315 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 465 transitions. [2023-11-19 07:55:35,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-19 07:55:35,316 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:55:35,316 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:55:35,329 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bbe64a-7467-4f81-a139-a24958bdc5a2/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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 [2023-11-19 07:55:35,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bbe64a-7467-4f81-a139-a24958bdc5a2/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:55:35,529 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 07:55:35,529 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:55:35,530 INFO L85 PathProgramCache]: Analyzing trace with hash 1366296664, now seen corresponding path program 1 times [2023-11-19 07:55:35,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:55:35,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [837542555] [2023-11-19 07:55:35,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:55:35,530 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 [2023-11-19 07:55:35,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bbe64a-7467-4f81-a139-a24958bdc5a2/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:55:35,531 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bbe64a-7467-4f81-a139-a24958bdc5a2/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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) [2023-11-19 07:55:35,533 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bbe64a-7467-4f81-a139-a24958bdc5a2/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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 [2023-11-19 07:55:35,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:35,794 INFO L262 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 07:55:35,798 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:55:35,832 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:55:35,833 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:55:35,834 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:55:35,848 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 [2023-11-19 07:55:35,940 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 07:55:35,941 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 [2023-11-19 07:55:35,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:55:35,971 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:55:35,972 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:55:35,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [837542555] [2023-11-19 07:55:35,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [837542555] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:55:35,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:55:35,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:55:35,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797339627] [2023-11-19 07:55:35,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:55:35,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:55:35,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:55:35,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:55:35,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:55:35,977 INFO L87 Difference]: Start difference. First operand 354 states and 465 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 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) [2023-11-19 07:55:40,285 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 07:55:43,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:55:43,863 INFO L93 Difference]: Finished difference Result 480 states and 640 transitions. [2023-11-19 07:55:43,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:55:43,869 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 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 [2023-11-19 07:55:43,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:55:43,872 INFO L225 Difference]: With dead ends: 480 [2023-11-19 07:55:43,873 INFO L226 Difference]: Without dead ends: 480 [2023-11-19 07:55:43,873 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:55:43,877 INFO L413 NwaCegarLoop]: 291 mSDtfsCounter, 191 mSDsluCounter, 513 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 804 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2023-11-19 07:55:43,878 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 804 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 193 Invalid, 1 Unknown, 0 Unchecked, 7.8s Time] [2023-11-19 07:55:43,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2023-11-19 07:55:43,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 353. [2023-11-19 07:55:43,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 339 states have (on average 1.3126843657817109) internal successors, (445), 346 states have internal predecessors, (445), 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) [2023-11-19 07:55:43,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 463 transitions. [2023-11-19 07:55:43,904 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 463 transitions. Word has length 15 [2023-11-19 07:55:43,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:55:43,904 INFO L495 AbstractCegarLoop]: Abstraction has 353 states and 463 transitions. [2023-11-19 07:55:43,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 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) [2023-11-19 07:55:43,905 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 463 transitions. [2023-11-19 07:55:43,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-11-19 07:55:43,909 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:55:43,909 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:55:43,918 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bbe64a-7467-4f81-a139-a24958bdc5a2/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-19 07:55:44,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bbe64a-7467-4f81-a139-a24958bdc5a2/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:55:44,114 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 07:55:44,114 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:55:44,114 INFO L85 PathProgramCache]: Analyzing trace with hash -1047302450, now seen corresponding path program 1 times [2023-11-19 07:55:44,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:55:44,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1174085605] [2023-11-19 07:55:44,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:55:44,116 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 [2023-11-19 07:55:44,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bbe64a-7467-4f81-a139-a24958bdc5a2/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:55:44,117 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bbe64a-7467-4f81-a139-a24958bdc5a2/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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) [2023-11-19 07:55:44,122 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bbe64a-7467-4f81-a139-a24958bdc5a2/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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 [2023-11-19 07:55:44,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:44,717 INFO L262 TraceCheckSpWp]: Trace formula consists of 501 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:55:44,723 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:55:44,764 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 07:55:44,765 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:55:44,765 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:55:44,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1174085605] [2023-11-19 07:55:44,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1174085605] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:55:44,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:55:44,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:55:44,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185122564] [2023-11-19 07:55:44,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:55:44,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:55:44,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:55:44,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:55:44,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:55:44,770 INFO L87 Difference]: Start difference. First operand 353 states and 463 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:55:44,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:55:44,918 INFO L93 Difference]: Finished difference Result 361 states and 455 transitions. [2023-11-19 07:55:44,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:55:44,919 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 87 [2023-11-19 07:55:44,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:55:44,922 INFO L225 Difference]: With dead ends: 361 [2023-11-19 07:55:44,922 INFO L226 Difference]: Without dead ends: 361 [2023-11-19 07:55:44,922 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:55:44,923 INFO L413 NwaCegarLoop]: 287 mSDtfsCounter, 36 mSDsluCounter, 548 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 835 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:55:44,924 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 835 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:55:44,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2023-11-19 07:55:44,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 359. [2023-11-19 07:55:44,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 345 states have (on average 1.2608695652173914) internal successors, (435), 352 states have internal predecessors, (435), 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) [2023-11-19 07:55:44,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 453 transitions. [2023-11-19 07:55:44,940 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 453 transitions. Word has length 87 [2023-11-19 07:55:44,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:55:44,941 INFO L495 AbstractCegarLoop]: Abstraction has 359 states and 453 transitions. [2023-11-19 07:55:44,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:55:44,941 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 453 transitions. [2023-11-19 07:55:44,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-11-19 07:55:44,945 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:55:44,945 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:55:44,960 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bbe64a-7467-4f81-a139-a24958bdc5a2/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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 [2023-11-19 07:55:45,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bbe64a-7467-4f81-a139-a24958bdc5a2/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:55:45,155 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 07:55:45,155 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:55:45,156 INFO L85 PathProgramCache]: Analyzing trace with hash 647489346, now seen corresponding path program 1 times [2023-11-19 07:55:45,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:55:45,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [504528645] [2023-11-19 07:55:45,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:55:45,157 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 [2023-11-19 07:55:45,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bbe64a-7467-4f81-a139-a24958bdc5a2/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:55:45,159 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bbe64a-7467-4f81-a139-a24958bdc5a2/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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) [2023-11-19 07:55:45,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bbe64a-7467-4f81-a139-a24958bdc5a2/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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 [2023-11-19 07:55:45,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:45,800 INFO L262 TraceCheckSpWp]: Trace formula consists of 495 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:55:45,804 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:55:45,849 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:55:45,849 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:55:45,849 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:55:45,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [504528645] [2023-11-19 07:55:45,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [504528645] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:55:45,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:55:45,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:55:45,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555753239] [2023-11-19 07:55:45,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:55:45,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:55:45,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:55:45,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:55:45,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:55:45,852 INFO L87 Difference]: Start difference. First operand 359 states and 453 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:55:45,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:55:45,919 INFO L93 Difference]: Finished difference Result 362 states and 457 transitions. [2023-11-19 07:55:45,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:55:45,920 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 87 [2023-11-19 07:55:45,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:55:45,923 INFO L225 Difference]: With dead ends: 362 [2023-11-19 07:55:45,923 INFO L226 Difference]: Without dead ends: 362 [2023-11-19 07:55:45,924 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:55:45,925 INFO L413 NwaCegarLoop]: 302 mSDtfsCounter, 2 mSDsluCounter, 600 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 902 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:55:45,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 902 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:55:45,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2023-11-19 07:55:45,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 362. [2023-11-19 07:55:45,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 347 states have (on average 1.2622478386167146) internal successors, (438), 355 states have internal predecessors, (438), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2023-11-19 07:55:45,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 457 transitions. [2023-11-19 07:55:45,939 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 457 transitions. Word has length 87 [2023-11-19 07:55:45,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:55:45,940 INFO L495 AbstractCegarLoop]: Abstraction has 362 states and 457 transitions. [2023-11-19 07:55:45,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:55:45,941 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 457 transitions. [2023-11-19 07:55:45,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-19 07:55:45,945 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:55:45,945 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:55:45,966 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bbe64a-7467-4f81-a139-a24958bdc5a2/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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 [2023-11-19 07:55:46,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bbe64a-7467-4f81-a139-a24958bdc5a2/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:55:46,161 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 07:55:46,161 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:55:46,161 INFO L85 PathProgramCache]: Analyzing trace with hash -878417916, now seen corresponding path program 1 times [2023-11-19 07:55:46,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:55:46,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1780708426] [2023-11-19 07:55:46,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:55:46,162 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 [2023-11-19 07:55:46,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bbe64a-7467-4f81-a139-a24958bdc5a2/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:55:46,164 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bbe64a-7467-4f81-a139-a24958bdc5a2/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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) [2023-11-19 07:55:46,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bbe64a-7467-4f81-a139-a24958bdc5a2/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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 [2023-11-19 07:55:46,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:46,867 INFO L262 TraceCheckSpWp]: Trace formula consists of 517 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:55:46,871 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:55:46,938 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 07:55:46,938 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:55:47,093 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 07:55:47,093 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:55:47,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1780708426] [2023-11-19 07:55:47,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1780708426] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:55:47,094 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:55:47,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-19 07:55:47,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47088354] [2023-11-19 07:55:47,099 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:55:47,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 07:55:47,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:55:47,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 07:55:47,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:55:47,102 INFO L87 Difference]: Start difference. First operand 362 states and 457 transitions. Second operand has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 07:55:47,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:55:47,392 INFO L93 Difference]: Finished difference Result 373 states and 473 transitions. [2023-11-19 07:55:47,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-19 07:55:47,393 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 89 [2023-11-19 07:55:47,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:55:47,396 INFO L225 Difference]: With dead ends: 373 [2023-11-19 07:55:47,396 INFO L226 Difference]: Without dead ends: 373 [2023-11-19 07:55:47,397 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=94, Unknown=0, NotChecked=0, Total=156 [2023-11-19 07:55:47,398 INFO L413 NwaCegarLoop]: 303 mSDtfsCounter, 9 mSDsluCounter, 900 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1203 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:55:47,398 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1203 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 07:55:47,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2023-11-19 07:55:47,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 371. [2023-11-19 07:55:47,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 355 states have (on average 1.2732394366197184) internal successors, (452), 363 states have internal predecessors, (452), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2023-11-19 07:55:47,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 471 transitions. [2023-11-19 07:55:47,412 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 471 transitions. Word has length 89 [2023-11-19 07:55:47,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:55:47,413 INFO L495 AbstractCegarLoop]: Abstraction has 371 states and 471 transitions. [2023-11-19 07:55:47,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 07:55:47,413 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 471 transitions. [2023-11-19 07:55:47,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-19 07:55:47,416 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:55:47,416 INFO L195 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:55:47,433 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bbe64a-7467-4f81-a139-a24958bdc5a2/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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 [2023-11-19 07:55:47,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bbe64a-7467-4f81-a139-a24958bdc5a2/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:55:47,626 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 07:55:47,627 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:55:47,627 INFO L85 PathProgramCache]: Analyzing trace with hash -1107862046, now seen corresponding path program 2 times [2023-11-19 07:55:47,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:55:47,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1243106502] [2023-11-19 07:55:47,627 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-19 07:55:47,628 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 [2023-11-19 07:55:47,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bbe64a-7467-4f81-a139-a24958bdc5a2/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:55:47,629 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bbe64a-7467-4f81-a139-a24958bdc5a2/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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) [2023-11-19 07:55:47,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bbe64a-7467-4f81-a139-a24958bdc5a2/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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 [2023-11-19 07:55:48,050 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-19 07:55:48,050 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 07:55:48,058 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-19 07:55:48,064 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:55:48,106 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:55:48,107 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:55:48,108 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:55:48,113 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 [2023-11-19 07:55:48,192 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 07:55:48,193 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 [2023-11-19 07:55:48,216 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2023-11-19 07:55:48,216 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:55:48,216 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:55:48,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1243106502] [2023-11-19 07:55:48,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1243106502] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:55:48,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:55:48,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:55:48,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909409498] [2023-11-19 07:55:48,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:55:48,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:55:48,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:55:48,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:55:48,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:55:48,219 INFO L87 Difference]: Start difference. First operand 371 states and 471 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:55:52,373 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 07:55:55,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:55:55,276 INFO L93 Difference]: Finished difference Result 459 states and 589 transitions. [2023-11-19 07:55:55,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:55:55,278 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 93 [2023-11-19 07:55:55,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:55:55,281 INFO L225 Difference]: With dead ends: 459 [2023-11-19 07:55:55,282 INFO L226 Difference]: Without dead ends: 459 [2023-11-19 07:55:55,282 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:55:55,283 INFO L413 NwaCegarLoop]: 283 mSDtfsCounter, 136 mSDsluCounter, 507 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 790 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:55:55,283 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 790 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 147 Invalid, 1 Unknown, 0 Unchecked, 7.0s Time] [2023-11-19 07:55:55,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2023-11-19 07:55:55,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 373. [2023-11-19 07:55:55,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 357 states have (on average 1.2717086834733893) internal successors, (454), 365 states have internal predecessors, (454), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2023-11-19 07:55:55,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 473 transitions. [2023-11-19 07:55:55,298 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 473 transitions. Word has length 93 [2023-11-19 07:55:55,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:55:55,299 INFO L495 AbstractCegarLoop]: Abstraction has 373 states and 473 transitions. [2023-11-19 07:55:55,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:55:55,299 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 473 transitions. [2023-11-19 07:55:55,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-11-19 07:55:55,301 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:55:55,301 INFO L195 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:55:55,310 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bbe64a-7467-4f81-a139-a24958bdc5a2/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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 [2023-11-19 07:55:55,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bbe64a-7467-4f81-a139-a24958bdc5a2/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:55:55,505 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 07:55:55,506 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:55:55,506 INFO L85 PathProgramCache]: Analyzing trace with hash 1425217989, now seen corresponding path program 1 times [2023-11-19 07:55:55,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:55:55,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1631179816] [2023-11-19 07:55:55,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:55:55,507 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:55:55,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bbe64a-7467-4f81-a139-a24958bdc5a2/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:55:55,510 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bbe64a-7467-4f81-a139-a24958bdc5a2/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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) [2023-11-19 07:55:55,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bbe64a-7467-4f81-a139-a24958bdc5a2/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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 [2023-11-19 07:55:56,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:56,309 INFO L262 TraceCheckSpWp]: Trace formula consists of 601 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 07:55:56,314 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:55:56,449 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 20 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-19 07:55:56,449 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:55:56,790 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 2 proven. 27 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 07:55:56,791 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:55:56,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1631179816] [2023-11-19 07:55:56,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1631179816] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:55:56,791 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:55:56,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2023-11-19 07:55:56,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581505948] [2023-11-19 07:55:56,792 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:55:56,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-19 07:55:56,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:55:56,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-19 07:55:56,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2023-11-19 07:55:56,794 INFO L87 Difference]: Start difference. First operand 373 states and 473 transitions. Second operand has 14 states, 14 states have (on average 9.285714285714286) internal successors, (130), 14 states have internal predecessors, (130), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 07:55:57,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:55:57,850 INFO L93 Difference]: Finished difference Result 394 states and 501 transitions. [2023-11-19 07:55:57,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-19 07:55:57,851 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 9.285714285714286) internal successors, (130), 14 states have internal predecessors, (130), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 125 [2023-11-19 07:55:57,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:55:57,854 INFO L225 Difference]: With dead ends: 394 [2023-11-19 07:55:57,854 INFO L226 Difference]: Without dead ends: 390 [2023-11-19 07:55:57,855 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=257, Invalid=499, Unknown=0, NotChecked=0, Total=756 [2023-11-19 07:55:57,856 INFO L413 NwaCegarLoop]: 306 mSDtfsCounter, 18 mSDsluCounter, 1816 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 2122 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-19 07:55:57,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 2122 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-19 07:55:57,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2023-11-19 07:55:57,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 382. [2023-11-19 07:55:57,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 382 states, 366 states have (on average 1.273224043715847) internal successors, (466), 374 states have internal predecessors, (466), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2023-11-19 07:55:57,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 485 transitions. [2023-11-19 07:55:57,869 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 485 transitions. Word has length 125 [2023-11-19 07:55:57,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:55:57,870 INFO L495 AbstractCegarLoop]: Abstraction has 382 states and 485 transitions. [2023-11-19 07:55:57,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 9.285714285714286) internal successors, (130), 14 states have internal predecessors, (130), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 07:55:57,870 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 485 transitions. [2023-11-19 07:55:57,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-11-19 07:55:57,872 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:55:57,873 INFO L195 NwaCegarLoop]: trace histogram [15, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:55:57,889 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bbe64a-7467-4f81-a139-a24958bdc5a2/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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 [2023-11-19 07:55:58,084 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bbe64a-7467-4f81-a139-a24958bdc5a2/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:55:58,084 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 07:55:58,084 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:55:58,084 INFO L85 PathProgramCache]: Analyzing trace with hash 1581279320, now seen corresponding path program 2 times [2023-11-19 07:55:58,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:55:58,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1524927745] [2023-11-19 07:55:58,085 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-19 07:55:58,085 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 [2023-11-19 07:55:58,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bbe64a-7467-4f81-a139-a24958bdc5a2/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:55:58,086 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bbe64a-7467-4f81-a139-a24958bdc5a2/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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) [2023-11-19 07:55:58,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bbe64a-7467-4f81-a139-a24958bdc5a2/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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 [2023-11-19 07:55:58,538 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-19 07:55:58,538 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 07:55:58,543 INFO L262 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:55:58,548 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:55:58,585 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2023-11-19 07:55:58,586 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:55:58,586 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:55:58,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1524927745] [2023-11-19 07:55:58,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1524927745] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:55:58,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:55:58,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:55:58,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618410837] [2023-11-19 07:55:58,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:55:58,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:55:58,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:55:58,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:55:58,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:55:58,589 INFO L87 Difference]: Start difference. First operand 382 states and 485 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:55:58,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:55:58,744 INFO L93 Difference]: Finished difference Result 390 states and 477 transitions. [2023-11-19 07:55:58,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:55:58,745 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 134 [2023-11-19 07:55:58,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:55:58,750 INFO L225 Difference]: With dead ends: 390 [2023-11-19 07:55:58,750 INFO L226 Difference]: Without dead ends: 390 [2023-11-19 07:55:58,751 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:55:58,753 INFO L413 NwaCegarLoop]: 275 mSDtfsCounter, 37 mSDsluCounter, 526 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 801 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:55:58,754 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 801 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:55:58,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2023-11-19 07:55:58,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 388. [2023-11-19 07:55:58,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 388 states, 372 states have (on average 1.2258064516129032) internal successors, (456), 380 states have internal predecessors, (456), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2023-11-19 07:55:58,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 475 transitions. [2023-11-19 07:55:58,768 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 475 transitions. Word has length 134 [2023-11-19 07:55:58,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:55:58,770 INFO L495 AbstractCegarLoop]: Abstraction has 388 states and 475 transitions. [2023-11-19 07:55:58,770 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:55:58,770 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 475 transitions. [2023-11-19 07:55:58,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-11-19 07:55:58,774 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:55:58,775 INFO L195 NwaCegarLoop]: trace histogram [15, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:55:58,784 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bbe64a-7467-4f81-a139-a24958bdc5a2/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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 [2023-11-19 07:55:58,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bbe64a-7467-4f81-a139-a24958bdc5a2/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:55:58,978 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 07:55:58,978 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:55:58,978 INFO L85 PathProgramCache]: Analyzing trace with hash -1363758132, now seen corresponding path program 1 times [2023-11-19 07:55:58,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:55:58,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1775492254] [2023-11-19 07:55:58,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:55:58,980 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 [2023-11-19 07:55:58,980 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bbe64a-7467-4f81-a139-a24958bdc5a2/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:55:58,981 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bbe64a-7467-4f81-a139-a24958bdc5a2/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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) [2023-11-19 07:55:58,997 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bbe64a-7467-4f81-a139-a24958bdc5a2/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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 [2023-11-19 07:55:59,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:59,718 INFO L262 TraceCheckSpWp]: Trace formula consists of 694 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-19 07:55:59,725 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:56:00,070 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 71 proven. 55 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-19 07:56:00,071 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:56:00,991 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 2 proven. 123 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-19 07:56:00,991 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:56:00,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1775492254] [2023-11-19 07:56:00,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1775492254] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:56:00,992 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:56:00,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2023-11-19 07:56:00,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980344071] [2023-11-19 07:56:00,992 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:56:00,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-11-19 07:56:00,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:56:00,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-11-19 07:56:00,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2023-11-19 07:56:00,996 INFO L87 Difference]: Start difference. First operand 388 states and 475 transitions. Second operand has 26 states, 26 states have (on average 5.461538461538462) internal successors, (142), 26 states have internal predecessors, (142), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 07:56:04,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:56:04,838 INFO L93 Difference]: Finished difference Result 430 states and 533 transitions. [2023-11-19 07:56:04,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-11-19 07:56:04,840 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.461538461538462) internal successors, (142), 26 states have internal predecessors, (142), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 134 [2023-11-19 07:56:04,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:56:04,843 INFO L225 Difference]: With dead ends: 430 [2023-11-19 07:56:04,843 INFO L226 Difference]: Without dead ends: 426 [2023-11-19 07:56:04,845 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 242 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 368 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=1025, Invalid=2281, Unknown=0, NotChecked=0, Total=3306 [2023-11-19 07:56:04,846 INFO L413 NwaCegarLoop]: 301 mSDtfsCounter, 36 mSDsluCounter, 3568 mSDsCounter, 0 mSdLazyCounter, 666 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 3869 SdHoareTripleChecker+Invalid, 705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 666 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-19 07:56:04,847 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 3869 Invalid, 705 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 666 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-19 07:56:04,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2023-11-19 07:56:04,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 406. [2023-11-19 07:56:04,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 390 states have (on average 1.2307692307692308) internal successors, (480), 398 states have internal predecessors, (480), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2023-11-19 07:56:04,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 499 transitions. [2023-11-19 07:56:04,862 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 499 transitions. Word has length 134 [2023-11-19 07:56:04,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:56:04,863 INFO L495 AbstractCegarLoop]: Abstraction has 406 states and 499 transitions. [2023-11-19 07:56:04,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.461538461538462) internal successors, (142), 26 states have internal predecessors, (142), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 07:56:04,863 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 499 transitions. [2023-11-19 07:56:04,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-11-19 07:56:04,866 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:56:04,866 INFO L195 NwaCegarLoop]: trace histogram [33, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:56:04,884 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bbe64a-7467-4f81-a139-a24958bdc5a2/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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 [2023-11-19 07:56:05,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bbe64a-7467-4f81-a139-a24958bdc5a2/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:56:05,079 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 07:56:05,080 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:56:05,080 INFO L85 PathProgramCache]: Analyzing trace with hash -1659786260, now seen corresponding path program 2 times [2023-11-19 07:56:05,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:56:05,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [694934835] [2023-11-19 07:56:05,081 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-19 07:56:05,081 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 [2023-11-19 07:56:05,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bbe64a-7467-4f81-a139-a24958bdc5a2/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:56:05,082 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bbe64a-7467-4f81-a139-a24958bdc5a2/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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) [2023-11-19 07:56:05,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bbe64a-7467-4f81-a139-a24958bdc5a2/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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 [2023-11-19 07:56:05,599 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-19 07:56:05,599 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 07:56:05,606 INFO L262 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 07:56:05,611 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:56:05,649 INFO L134 CoverageAnalysis]: Checked inductivity of 600 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 600 trivial. 0 not checked. [2023-11-19 07:56:05,649 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:56:05,649 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:56:05,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [694934835] [2023-11-19 07:56:05,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [694934835] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:56:05,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:56:05,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:56:05,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713371444] [2023-11-19 07:56:05,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:56:05,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:56:05,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:56:05,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:56:05,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:56:05,652 INFO L87 Difference]: Start difference. First operand 406 states and 499 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:56:05,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:56:05,743 INFO L93 Difference]: Finished difference Result 408 states and 495 transitions. [2023-11-19 07:56:05,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:56:05,744 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 152 [2023-11-19 07:56:05,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:56:05,747 INFO L225 Difference]: With dead ends: 408 [2023-11-19 07:56:05,749 INFO L226 Difference]: Without dead ends: 408 [2023-11-19 07:56:05,750 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:56:05,751 INFO L413 NwaCegarLoop]: 288 mSDtfsCounter, 1 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 554 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:56:05,751 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 554 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:56:05,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2023-11-19 07:56:05,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 406. [2023-11-19 07:56:05,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 390 states have (on average 1.2153846153846153) internal successors, (474), 398 states have internal predecessors, (474), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2023-11-19 07:56:05,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 493 transitions. [2023-11-19 07:56:05,766 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 493 transitions. Word has length 152 [2023-11-19 07:56:05,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:56:05,766 INFO L495 AbstractCegarLoop]: Abstraction has 406 states and 493 transitions. [2023-11-19 07:56:05,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:56:05,767 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 493 transitions. [2023-11-19 07:56:05,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-11-19 07:56:05,769 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:56:05,769 INFO L195 NwaCegarLoop]: trace histogram [33, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:56:05,781 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bbe64a-7467-4f81-a139-a24958bdc5a2/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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 [2023-11-19 07:56:05,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bbe64a-7467-4f81-a139-a24958bdc5a2/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:56:05,973 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 07:56:05,973 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:56:05,973 INFO L85 PathProgramCache]: Analyzing trace with hash -638717906, now seen corresponding path program 1 times [2023-11-19 07:56:05,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:56:05,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1593221836] [2023-11-19 07:56:05,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:05,975 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 [2023-11-19 07:56:05,975 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bbe64a-7467-4f81-a139-a24958bdc5a2/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:56:05,976 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bbe64a-7467-4f81-a139-a24958bdc5a2/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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) [2023-11-19 07:56:06,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bbe64a-7467-4f81-a139-a24958bdc5a2/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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 [2023-11-19 07:56:06,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:06,913 INFO L262 TraceCheckSpWp]: Trace formula consists of 893 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-19 07:56:06,919 INFO L285 TraceCheckSpWp]: Computing forward predicates...