./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_nondet_test4-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version a0165632 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_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_nondet_test4-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/config/svcomp-MemCleanup-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 87dd09ebbd7004650762949ef44f5f810b259dfe76e04f61193dc727167eb435 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 06:12:54,016 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:12:54,144 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/config/svcomp-MemCleanup-32bit-Taipan_Default.epf [2024-11-09 06:12:54,152 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:12:54,153 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:12:54,192 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:12:54,195 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:12:54,196 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:12:54,197 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:12:54,199 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:12:54,199 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 06:12:54,200 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 06:12:54,201 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 06:12:54,204 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 06:12:54,204 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 06:12:54,205 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 06:12:54,205 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 06:12:54,206 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 06:12:54,206 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 06:12:54,207 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 06:12:54,211 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 06:12:54,212 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 06:12:54,212 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 06:12:54,213 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 06:12:54,213 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:12:54,214 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:12:54,214 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 06:12:54,214 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 06:12:54,215 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 06:12:54,215 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:12:54,217 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:12:54,217 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-09 06:12:54,218 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-09 06:12:54,218 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:12:54,218 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:12:54,219 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 06:12:54,219 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:12:54,219 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 06:12:54,220 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 06:12:54,220 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:12:54,220 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:12:54,221 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:12:54,221 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 06:12:54,221 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:12:54,222 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:12:54,223 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:12:54,223 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:12:54,223 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 06:12:54,223 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 06:12:54,224 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:12:54,224 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 06:12:54,224 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 06:12:54,226 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 87dd09ebbd7004650762949ef44f5f810b259dfe76e04f61193dc727167eb435 [2024-11-09 06:12:54,597 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:12:54,634 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:12:54,637 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:12:54,639 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:12:54,640 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:12:54,641 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_nondet_test4-3.i Unable to find full path for "g++" [2024-11-09 06:12:57,239 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:12:57,692 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:12:57,693 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_nondet_test4-3.i [2024-11-09 06:12:57,719 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/data/7c6895d3c/e19af049fa7a441fa138e54324240d03/FLAG6f3caf82c [2024-11-09 06:12:57,739 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/data/7c6895d3c/e19af049fa7a441fa138e54324240d03 [2024-11-09 06:12:57,742 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:12:57,744 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:12:57,746 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:12:57,746 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:12:57,754 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:12:57,755 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:12:57" (1/1) ... [2024-11-09 06:12:57,757 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70a51be5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:12:57, skipping insertion in model container [2024-11-09 06:12:57,757 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:12:57" (1/1) ... [2024-11-09 06:12:57,834 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:12:58,582 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:12:58,644 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:12:58,651 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:12:58,659 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:12:58,679 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:12:58,732 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:12:58,736 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:12:58,739 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:12:58,747 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:12:58,760 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:12:58,762 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:12:58,765 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:12:58,768 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:12:58,769 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:12:58,771 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:12:58,781 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:12:58,783 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:12:58,787 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:12:58,788 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:12:58,797 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:12:58,820 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:12:58,844 ERROR L321 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) [2024-11-09 06:12:58,845 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4fc172 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:12:58, skipping insertion in model container [2024-11-09 06:12:58,845 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:12:58,846 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-11-09 06:12:58,850 INFO L158 Benchmark]: Toolchain (without parser) took 1104.26ms. Allocated memory is still 157.3MB. Free memory was 124.8MB in the beginning and 98.8MB in the end (delta: 25.9MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-11-09 06:12:58,850 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 125.8MB. Free memory is still 84.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 06:12:58,851 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1099.82ms. Allocated memory is still 157.3MB. Free memory was 124.4MB in the beginning and 98.8MB in the end (delta: 25.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-09 06:12:58,853 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 125.8MB. Free memory is still 84.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1099.82ms. Allocated memory is still 157.3MB. Free memory was 124.4MB in the beginning and 98.8MB in the end (delta: 25.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 757]: 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_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_nondet_test4-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/config/svcomp-MemCleanup-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 87dd09ebbd7004650762949ef44f5f810b259dfe76e04f61193dc727167eb435 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 06:13:01,524 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:13:01,619 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/config/svcomp-MemCleanup-32bit-Taipan_Bitvector.epf [2024-11-09 06:13:01,625 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:13:01,626 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:13:01,654 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:13:01,655 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:13:01,655 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:13:01,656 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:13:01,657 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:13:01,657 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 06:13:01,658 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 06:13:01,658 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 06:13:01,659 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 06:13:01,659 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 06:13:01,659 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 06:13:01,660 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 06:13:01,661 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 06:13:01,662 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:13:01,662 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:13:01,662 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 06:13:01,663 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 06:13:01,663 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 06:13:01,664 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:13:01,664 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:13:01,665 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-09 06:13:01,665 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-09 06:13:01,666 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:13:01,666 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:13:01,667 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 06:13:01,667 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 06:13:01,667 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:13:01,668 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 06:13:01,668 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 06:13:01,669 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 06:13:01,669 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:13:01,670 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:13:01,670 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:13:01,671 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 06:13:01,671 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 06:13:01,672 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:13:01,672 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:13:01,673 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:13:01,673 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:13:01,673 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 06:13:01,674 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 06:13:01,674 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:13:01,674 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 06:13:01,675 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 87dd09ebbd7004650762949ef44f5f810b259dfe76e04f61193dc727167eb435 [2024-11-09 06:13:02,183 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:13:02,225 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:13:02,229 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:13:02,232 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:13:02,233 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:13:02,235 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_nondet_test4-3.i Unable to find full path for "g++" [2024-11-09 06:13:05,077 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:13:05,690 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:13:05,693 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_nondet_test4-3.i [2024-11-09 06:13:05,720 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/data/426e6ffa7/6e3de6f415ee48a38b1d5c820cb540fb/FLAGc13395614 [2024-11-09 06:13:05,746 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/data/426e6ffa7/6e3de6f415ee48a38b1d5c820cb540fb [2024-11-09 06:13:05,750 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:13:05,752 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:13:05,756 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:13:05,756 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:13:05,764 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:13:05,767 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:13:05" (1/1) ... [2024-11-09 06:13:05,768 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6aaff45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:13:05, skipping insertion in model container [2024-11-09 06:13:05,769 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:13:05" (1/1) ... [2024-11-09 06:13:05,865 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:13:06,547 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:13:06,609 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:13:06,616 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:13:06,622 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:13:06,644 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:13:06,733 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:13:06,742 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:13:06,750 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:13:06,770 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:13:06,791 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:13:06,793 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:13:06,797 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:13:06,799 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:13:06,801 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:13:06,802 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:13:06,810 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:13:06,811 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:13:06,813 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:13:06,814 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:13:06,819 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:13:06,831 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:13:06,848 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-09 06:13:06,868 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:13:06,910 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:13:06,933 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:13:06,936 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:13:06,939 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:13:06,947 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:13:06,978 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:13:06,981 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:13:06,985 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:13:06,991 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:13:07,004 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:13:07,005 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:13:07,009 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:13:07,010 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:13:07,012 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:13:07,013 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:13:07,019 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:13:07,021 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:13:07,022 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:13:07,024 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:13:07,028 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:13:07,032 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:13:07,038 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:13:07,240 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:13:07,294 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:13:07,295 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:13:07 WrapperNode [2024-11-09 06:13:07,295 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:13:07,297 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:13:07,298 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:13:07,299 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:13:07,309 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:13:07" (1/1) ... [2024-11-09 06:13:07,368 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:13:07" (1/1) ... [2024-11-09 06:13:07,480 INFO L138 Inliner]: procedures = 179, calls = 425, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1388 [2024-11-09 06:13:07,483 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:13:07,484 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:13:07,484 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:13:07,485 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:13:07,498 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:13:07" (1/1) ... [2024-11-09 06:13:07,498 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:13:07" (1/1) ... [2024-11-09 06:13:07,523 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:13:07" (1/1) ... [2024-11-09 06:13:07,526 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:13:07" (1/1) ... [2024-11-09 06:13:07,614 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:13:07" (1/1) ... [2024-11-09 06:13:07,626 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:13:07" (1/1) ... [2024-11-09 06:13:07,632 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:13:07" (1/1) ... [2024-11-09 06:13:07,638 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:13:07" (1/1) ... [2024-11-09 06:13:07,649 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:13:07,650 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:13:07,651 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:13:07,651 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:13:07,652 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:13:07" (1/1) ... [2024-11-09 06:13:07,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:13:07,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:13:07,764 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 06:13:07,780 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 06:13:07,813 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2024-11-09 06:13:07,813 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-09 06:13:07,814 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2024-11-09 06:13:07,814 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2024-11-09 06:13:07,814 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 06:13:07,815 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:13:07,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-09 06:13:07,815 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-09 06:13:07,815 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 06:13:07,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-09 06:13:07,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-09 06:13:07,816 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:13:07,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:13:08,198 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:13:08,201 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:13:22,586 INFO L? ?]: Removed 206 outVars from TransFormulas that were not future-live. [2024-11-09 06:13:22,587 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:13:22,612 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:13:22,612 INFO L316 CfgBuilder]: Removed 70 assume(true) statements. [2024-11-09 06:13:22,613 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:13:22 BoogieIcfgContainer [2024-11-09 06:13:22,613 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:13:22,615 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:13:22,615 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:13:22,620 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:13:22,620 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:13:05" (1/3) ... [2024-11-09 06:13:22,621 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@473b5ba8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:13:22, skipping insertion in model container [2024-11-09 06:13:22,621 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:13:07" (2/3) ... [2024-11-09 06:13:22,622 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@473b5ba8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:13:22, skipping insertion in model container [2024-11-09 06:13:22,622 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:13:22" (3/3) ... [2024-11-09 06:13:22,624 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SAX_nondet_test4-3.i [2024-11-09 06:13:22,648 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:13:22,648 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-09 06:13:22,759 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:13:22,769 INFO L333 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, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, 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;@416900de, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:13:22,769 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-09 06:13:22,776 INFO L276 IsEmpty]: Start isEmpty. Operand has 256 states, 246 states have (on average 1.6422764227642277) internal successors, (404), 248 states have internal predecessors, (404), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-09 06:13:22,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-09 06:13:22,790 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:13:22,791 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-09 06:13:22,792 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 06:13:22,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:13:22,802 INFO L85 PathProgramCache]: Analyzing trace with hash 1172838, now seen corresponding path program 1 times [2024-11-09 06:13:22,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:13:22,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1536637817] [2024-11-09 06:13:22,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:13:22,819 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 [2024-11-09 06:13:22,819 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:13:22,821 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/mathsat -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) [2024-11-09 06:13:22,824 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/mathsat -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 [2024-11-09 06:13:23,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:13:23,086 INFO L255 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 06:13:23,093 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:13:23,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:13:23,134 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:13:23,135 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:13:23,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1536637817] [2024-11-09 06:13:23,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1536637817] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:13:23,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:13:23,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:13:23,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129268184] [2024-11-09 06:13:23,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:13:23,147 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:13:23,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:13:23,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:13:23,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:13:23,190 INFO L87 Difference]: Start difference. First operand has 256 states, 246 states have (on average 1.6422764227642277) internal successors, (404), 248 states have internal predecessors, (404), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:13:25,326 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:13:27,412 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:13:28,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:13:28,563 INFO L93 Difference]: Finished difference Result 321 states and 426 transitions. [2024-11-09 06:13:28,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:13:28,578 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-11-09 06:13:28,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:13:28,589 INFO L225 Difference]: With dead ends: 321 [2024-11-09 06:13:28,590 INFO L226 Difference]: Without dead ends: 317 [2024-11-09 06:13:28,591 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:13:28,596 INFO L432 NwaCegarLoop]: 365 mSDtfsCounter, 86 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 683 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2024-11-09 06:13:28,597 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 683 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 2 Unknown, 0 Unchecked, 5.3s Time] [2024-11-09 06:13:28,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2024-11-09 06:13:28,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 267. [2024-11-09 06:13:28,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 258 states have (on average 1.3255813953488371) internal successors, (342), 259 states have internal predecessors, (342), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-09 06:13:28,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 354 transitions. [2024-11-09 06:13:28,668 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 354 transitions. Word has length 4 [2024-11-09 06:13:28,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:13:28,669 INFO L471 AbstractCegarLoop]: Abstraction has 267 states and 354 transitions. [2024-11-09 06:13:28,669 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:13:28,669 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 354 transitions. [2024-11-09 06:13:28,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-09 06:13:28,670 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:13:28,671 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:13:28,675 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-09 06:13:28,873 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:13:28,874 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 06:13:28,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:13:28,875 INFO L85 PathProgramCache]: Analyzing trace with hash -1132691444, now seen corresponding path program 1 times [2024-11-09 06:13:28,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:13:28,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [679991489] [2024-11-09 06:13:28,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:13:28,877 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 [2024-11-09 06:13:28,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:13:28,879 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/mathsat -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) [2024-11-09 06:13:28,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/mathsat -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 [2024-11-09 06:13:29,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:13:29,117 INFO L255 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 06:13:29,120 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:13:29,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:13:29,237 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:13:29,237 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:13:29,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [679991489] [2024-11-09 06:13:29,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [679991489] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:13:29,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:13:29,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 06:13:29,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042288541] [2024-11-09 06:13:29,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:13:29,240 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:13:29,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:13:29,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:13:29,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:13:29,242 INFO L87 Difference]: Start difference. First operand 267 states and 354 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:13:32,237 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:13:34,653 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:13:37,760 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:13:39,776 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:13:40,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:13:40,154 INFO L93 Difference]: Finished difference Result 389 states and 513 transitions. [2024-11-09 06:13:40,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:13:40,158 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-11-09 06:13:40,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:13:40,161 INFO L225 Difference]: With dead ends: 389 [2024-11-09 06:13:40,161 INFO L226 Difference]: Without dead ends: 389 [2024-11-09 06:13:40,161 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:13:40,163 INFO L432 NwaCegarLoop]: 330 mSDtfsCounter, 164 mSDsluCounter, 585 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 915 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time [2024-11-09 06:13:40,164 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 915 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 80 Invalid, 3 Unknown, 0 Unchecked, 10.9s Time] [2024-11-09 06:13:40,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2024-11-09 06:13:40,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 389. [2024-11-09 06:13:40,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 377 states have (on average 1.312997347480106) internal successors, (495), 378 states have internal predecessors, (495), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-09 06:13:40,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 513 transitions. [2024-11-09 06:13:40,198 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 513 transitions. Word has length 12 [2024-11-09 06:13:40,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:13:40,199 INFO L471 AbstractCegarLoop]: Abstraction has 389 states and 513 transitions. [2024-11-09 06:13:40,199 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:13:40,200 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 513 transitions. [2024-11-09 06:13:40,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-09 06:13:40,201 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:13:40,201 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:13:40,208 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/mathsat -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 [2024-11-09 06:13:40,403 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:13:40,404 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 06:13:40,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:13:40,406 INFO L85 PathProgramCache]: Analyzing trace with hash -681842369, now seen corresponding path program 1 times [2024-11-09 06:13:40,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:13:40,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [334468260] [2024-11-09 06:13:40,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:13:40,407 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 [2024-11-09 06:13:40,407 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:13:40,411 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/mathsat -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) [2024-11-09 06:13:40,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/mathsat -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 [2024-11-09 06:13:40,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:13:40,656 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 06:13:40,661 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:13:40,792 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 06:13:40,792 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:13:40,792 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:13:40,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [334468260] [2024-11-09 06:13:40,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [334468260] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:13:40,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:13:40,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:13:40,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75248528] [2024-11-09 06:13:40,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:13:40,795 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:13:40,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:13:40,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:13:40,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:13:40,797 INFO L87 Difference]: Start difference. First operand 389 states and 513 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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) [2024-11-09 06:13:42,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:13:42,019 INFO L93 Difference]: Finished difference Result 441 states and 581 transitions. [2024-11-09 06:13:42,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:13:42,025 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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 27 [2024-11-09 06:13:42,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:13:42,027 INFO L225 Difference]: With dead ends: 441 [2024-11-09 06:13:42,028 INFO L226 Difference]: Without dead ends: 441 [2024-11-09 06:13:42,028 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:13:42,033 INFO L432 NwaCegarLoop]: 321 mSDtfsCounter, 126 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 632 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:13:42,033 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 632 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-09 06:13:42,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2024-11-09 06:13:42,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 387. [2024-11-09 06:13:42,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 375 states have (on average 1.3093333333333332) internal successors, (491), 376 states have internal predecessors, (491), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-09 06:13:42,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 509 transitions. [2024-11-09 06:13:42,082 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 509 transitions. Word has length 27 [2024-11-09 06:13:42,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:13:42,083 INFO L471 AbstractCegarLoop]: Abstraction has 387 states and 509 transitions. [2024-11-09 06:13:42,083 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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) [2024-11-09 06:13:42,084 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 509 transitions. [2024-11-09 06:13:42,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-09 06:13:42,085 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:13:42,085 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:13:42,094 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/mathsat -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 [2024-11-09 06:13:42,286 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:13:42,287 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 06:13:42,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:13:42,288 INFO L85 PathProgramCache]: Analyzing trace with hash -1499490819, now seen corresponding path program 1 times [2024-11-09 06:13:42,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:13:42,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1006429321] [2024-11-09 06:13:42,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:13:42,289 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 [2024-11-09 06:13:42,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:13:42,298 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/mathsat -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) [2024-11-09 06:13:42,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/mathsat -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 [2024-11-09 06:13:42,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:13:42,516 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 06:13:42,520 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:13:42,715 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:13:42,715 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:13:42,715 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:13:42,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1006429321] [2024-11-09 06:13:42,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1006429321] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:13:42,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:13:42,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 06:13:42,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838000503] [2024-11-09 06:13:42,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:13:42,717 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:13:42,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:13:42,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:13:42,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:13:42,718 INFO L87 Difference]: Start difference. First operand 387 states and 509 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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) [2024-11-09 06:13:45,217 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:13:47,604 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:13:52,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:13:52,952 INFO L93 Difference]: Finished difference Result 440 states and 579 transitions. [2024-11-09 06:13:52,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:13:52,958 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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 27 [2024-11-09 06:13:52,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:13:52,966 INFO L225 Difference]: With dead ends: 440 [2024-11-09 06:13:52,970 INFO L226 Difference]: Without dead ends: 434 [2024-11-09 06:13:52,971 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:13:52,972 INFO L432 NwaCegarLoop]: 355 mSDtfsCounter, 128 mSDsluCounter, 596 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 951 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:13:52,972 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 951 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 112 Invalid, 2 Unknown, 0 Unchecked, 10.2s Time] [2024-11-09 06:13:52,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2024-11-09 06:13:52,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 380. [2024-11-09 06:13:53,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 368 states have (on average 1.309782608695652) internal successors, (482), 369 states have internal predecessors, (482), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-09 06:13:53,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 500 transitions. [2024-11-09 06:13:53,007 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 500 transitions. Word has length 27 [2024-11-09 06:13:53,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:13:53,007 INFO L471 AbstractCegarLoop]: Abstraction has 380 states and 500 transitions. [2024-11-09 06:13:53,010 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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) [2024-11-09 06:13:53,011 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 500 transitions. [2024-11-09 06:13:53,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-09 06:13:53,017 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:13:53,018 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:13:53,021 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/mathsat -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 [2024-11-09 06:13:53,218 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:13:53,218 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 06:13:53,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:13:53,219 INFO L85 PathProgramCache]: Analyzing trace with hash -1603879084, now seen corresponding path program 1 times [2024-11-09 06:13:53,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:13:53,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1088881423] [2024-11-09 06:13:53,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:13:53,222 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 [2024-11-09 06:13:53,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:13:53,226 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/mathsat -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) [2024-11-09 06:13:53,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/mathsat -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 [2024-11-09 06:13:54,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:13:54,318 INFO L255 TraceCheckSpWp]: Trace formula consists of 800 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 06:13:54,327 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:13:54,409 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-09 06:13:54,410 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:13:54,410 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:13:54,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1088881423] [2024-11-09 06:13:54,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1088881423] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:13:54,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:13:54,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 06:13:54,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512510092] [2024-11-09 06:13:54,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:13:54,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:13:54,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:13:54,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:13:54,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:13:54,415 INFO L87 Difference]: Start difference. First operand 380 states and 500 transitions. Second operand has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 06:13:54,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:13:54,619 INFO L93 Difference]: Finished difference Result 384 states and 486 transitions. [2024-11-09 06:13:54,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:13:54,620 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 149 [2024-11-09 06:13:54,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:13:54,622 INFO L225 Difference]: With dead ends: 384 [2024-11-09 06:13:54,622 INFO L226 Difference]: Without dead ends: 384 [2024-11-09 06:13:54,623 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:13:54,624 INFO L432 NwaCegarLoop]: 299 mSDtfsCounter, 33 mSDsluCounter, 582 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 881 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:13:54,625 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 881 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 06:13:54,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2024-11-09 06:13:54,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 384. [2024-11-09 06:13:54,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 372 states have (on average 1.2580645161290323) internal successors, (468), 373 states have internal predecessors, (468), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-09 06:13:54,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 486 transitions. [2024-11-09 06:13:54,640 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 486 transitions. Word has length 149 [2024-11-09 06:13:54,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:13:54,640 INFO L471 AbstractCegarLoop]: Abstraction has 384 states and 486 transitions. [2024-11-09 06:13:54,641 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 06:13:54,641 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 486 transitions. [2024-11-09 06:13:54,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-09 06:13:54,644 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:13:54,645 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:13:54,664 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/mathsat -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)] Ended with exit code 0 [2024-11-09 06:13:54,845 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:13:54,846 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 06:13:54,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:13:54,847 INFO L85 PathProgramCache]: Analyzing trace with hash -1115045530, now seen corresponding path program 1 times [2024-11-09 06:13:54,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:13:54,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [257986186] [2024-11-09 06:13:54,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:13:54,849 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 [2024-11-09 06:13:54,849 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:13:54,850 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/mathsat -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) [2024-11-09 06:13:54,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/mathsat -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 [2024-11-09 06:13:55,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:13:55,982 INFO L255 TraceCheckSpWp]: Trace formula consists of 782 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 06:13:56,000 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:13:56,217 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-09 06:13:56,217 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:13:56,217 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:13:56,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [257986186] [2024-11-09 06:13:56,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [257986186] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:13:56,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:13:56,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:13:56,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756467934] [2024-11-09 06:13:56,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:13:56,222 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:13:56,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:13:56,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:13:56,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:13:56,224 INFO L87 Difference]: Start difference. First operand 384 states and 486 transitions. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 06:13:56,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:13:56,373 INFO L93 Difference]: Finished difference Result 372 states and 466 transitions. [2024-11-09 06:13:56,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:13:56,374 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 149 [2024-11-09 06:13:56,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:13:56,376 INFO L225 Difference]: With dead ends: 372 [2024-11-09 06:13:56,376 INFO L226 Difference]: Without dead ends: 372 [2024-11-09 06:13:56,377 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:13:56,378 INFO L432 NwaCegarLoop]: 300 mSDtfsCounter, 4 mSDsluCounter, 581 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 881 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:13:56,378 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 881 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:13:56,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2024-11-09 06:13:56,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 372. [2024-11-09 06:13:56,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 360 states have (on average 1.2444444444444445) internal successors, (448), 361 states have internal predecessors, (448), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-09 06:13:56,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 466 transitions. [2024-11-09 06:13:56,392 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 466 transitions. Word has length 149 [2024-11-09 06:13:56,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:13:56,392 INFO L471 AbstractCegarLoop]: Abstraction has 372 states and 466 transitions. [2024-11-09 06:13:56,393 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 06:13:56,393 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 466 transitions. [2024-11-09 06:13:56,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-09 06:13:56,396 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:13:56,396 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:13:56,414 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2024-11-09 06:13:56,597 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:13:56,597 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 06:13:56,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:13:56,598 INFO L85 PathProgramCache]: Analyzing trace with hash 1401082336, now seen corresponding path program 1 times [2024-11-09 06:13:56,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:13:56,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1602338948] [2024-11-09 06:13:56,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:13:56,599 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 [2024-11-09 06:13:56,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:13:56,606 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/mathsat -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) [2024-11-09 06:13:56,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/mathsat -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 [2024-11-09 06:13:57,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:13:57,652 INFO L255 TraceCheckSpWp]: Trace formula consists of 788 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 06:13:57,658 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:13:57,701 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 06:13:57,701 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:13:57,702 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:13:57,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1602338948] [2024-11-09 06:13:57,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1602338948] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:13:57,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:13:57,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 06:13:57,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976681891] [2024-11-09 06:13:57,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:13:57,703 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:13:57,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:13:57,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:13:57,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:13:57,717 INFO L87 Difference]: Start difference. First operand 372 states and 466 transitions. Second operand has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 06:13:57,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:13:57,816 INFO L93 Difference]: Finished difference Result 375 states and 472 transitions. [2024-11-09 06:13:57,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:13:57,818 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 149 [2024-11-09 06:13:57,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:13:57,822 INFO L225 Difference]: With dead ends: 375 [2024-11-09 06:13:57,823 INFO L226 Difference]: Without dead ends: 375 [2024-11-09 06:13:57,823 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:13:57,825 INFO L432 NwaCegarLoop]: 312 mSDtfsCounter, 0 mSDsluCounter, 617 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 929 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:13:57,826 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 929 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:13:57,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2024-11-09 06:13:57,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 375. [2024-11-09 06:13:57,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 362 states have (on average 1.2458563535911602) internal successors, (451), 364 states have internal predecessors, (451), 9 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2024-11-09 06:13:57,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 472 transitions. [2024-11-09 06:13:57,843 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 472 transitions. Word has length 149 [2024-11-09 06:13:57,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:13:57,846 INFO L471 AbstractCegarLoop]: Abstraction has 375 states and 472 transitions. [2024-11-09 06:13:57,847 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 06:13:57,847 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 472 transitions. [2024-11-09 06:13:57,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-09 06:13:57,852 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:13:57,853 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:13:57,870 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2024-11-09 06:13:58,053 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:13:58,054 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 06:13:58,055 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:13:58,055 INFO L85 PathProgramCache]: Analyzing trace with hash 281932956, now seen corresponding path program 1 times [2024-11-09 06:13:58,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:13:58,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1789363383] [2024-11-09 06:13:58,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:13:58,057 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 [2024-11-09 06:13:58,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:13:58,061 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/mathsat -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) [2024-11-09 06:13:58,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/mathsat -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 [2024-11-09 06:13:59,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:13:59,296 INFO L255 TraceCheckSpWp]: Trace formula consists of 832 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 06:13:59,303 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:13:59,371 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-09 06:13:59,371 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:13:59,614 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 1 proven. 19 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-09 06:13:59,614 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:13:59,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1789363383] [2024-11-09 06:13:59,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1789363383] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:13:59,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [284436258] [2024-11-09 06:13:59,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:13:59,616 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 06:13:59,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 06:13:59,620 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 06:13:59,625 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2024-11-09 06:14:01,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:14:01,028 INFO L255 TraceCheckSpWp]: Trace formula consists of 832 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 06:14:01,033 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:14:01,134 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-09 06:14:01,135 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:14:01,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [284436258] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:14:01,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-09 06:14:01,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5, 5] total 9 [2024-11-09 06:14:01,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521163593] [2024-11-09 06:14:01,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:14:01,137 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:14:01,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:14:01,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:14:01,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-09 06:14:01,138 INFO L87 Difference]: Start difference. First operand 375 states and 472 transitions. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 06:14:01,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:14:01,333 INFO L93 Difference]: Finished difference Result 415 states and 512 transitions. [2024-11-09 06:14:01,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:14:01,334 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 153 [2024-11-09 06:14:01,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:14:01,337 INFO L225 Difference]: With dead ends: 415 [2024-11-09 06:14:01,337 INFO L226 Difference]: Without dead ends: 415 [2024-11-09 06:14:01,337 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 456 GetRequests, 449 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-09 06:14:01,338 INFO L432 NwaCegarLoop]: 296 mSDtfsCounter, 5 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:14:01,339 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 577 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 06:14:01,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2024-11-09 06:14:01,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 415. [2024-11-09 06:14:01,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 415 states, 402 states have (on average 1.2213930348258706) internal successors, (491), 404 states have internal predecessors, (491), 9 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2024-11-09 06:14:01,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 512 transitions. [2024-11-09 06:14:01,355 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 512 transitions. Word has length 153 [2024-11-09 06:14:01,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:14:01,356 INFO L471 AbstractCegarLoop]: Abstraction has 415 states and 512 transitions. [2024-11-09 06:14:01,356 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 06:14:01,356 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 512 transitions. [2024-11-09 06:14:01,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-09 06:14:01,359 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:14:01,359 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:14:01,378 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2024-11-09 06:14:01,570 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2024-11-09 06:14:01,763 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/mathsat -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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt [2024-11-09 06:14:01,764 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 06:14:01,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:14:01,765 INFO L85 PathProgramCache]: Analyzing trace with hash 699329562, now seen corresponding path program 1 times [2024-11-09 06:14:01,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:14:01,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1429889657] [2024-11-09 06:14:01,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:14:01,766 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 [2024-11-09 06:14:01,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:14:01,769 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/mathsat -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) [2024-11-09 06:14:01,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/mathsat -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 [2024-11-09 06:14:02,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:14:02,978 INFO L255 TraceCheckSpWp]: Trace formula consists of 834 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 06:14:02,982 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:14:03,064 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-09 06:14:03,064 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:14:03,267 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 1 proven. 19 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-09 06:14:03,270 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:14:03,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1429889657] [2024-11-09 06:14:03,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1429889657] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:14:03,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1149060461] [2024-11-09 06:14:03,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:14:03,271 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 06:14:03,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 06:14:03,274 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 06:14:03,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2024-11-09 06:14:04,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:14:04,709 INFO L255 TraceCheckSpWp]: Trace formula consists of 834 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 06:14:04,715 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:14:04,811 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-09 06:14:04,811 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:14:04,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1149060461] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:14:04,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-09 06:14:04,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 5] total 10 [2024-11-09 06:14:04,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069359423] [2024-11-09 06:14:04,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:14:04,813 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:14:04,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:14:04,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:14:04,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-09 06:14:04,815 INFO L87 Difference]: Start difference. First operand 415 states and 512 transitions. Second operand has 4 states, 4 states have (on average 34.25) internal successors, (137), 4 states have internal predecessors, (137), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 06:14:05,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:14:05,011 INFO L93 Difference]: Finished difference Result 379 states and 452 transitions. [2024-11-09 06:14:05,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:14:05,012 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 4 states have internal predecessors, (137), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 153 [2024-11-09 06:14:05,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:14:05,014 INFO L225 Difference]: With dead ends: 379 [2024-11-09 06:14:05,015 INFO L226 Difference]: Without dead ends: 379 [2024-11-09 06:14:05,015 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 457 GetRequests, 448 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-11-09 06:14:05,016 INFO L432 NwaCegarLoop]: 281 mSDtfsCounter, 32 mSDsluCounter, 548 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 829 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:14:05,016 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 829 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 06:14:05,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2024-11-09 06:14:05,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 379. [2024-11-09 06:14:05,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 366 states have (on average 1.1775956284153006) internal successors, (431), 368 states have internal predecessors, (431), 9 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2024-11-09 06:14:05,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 452 transitions. [2024-11-09 06:14:05,030 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 452 transitions. Word has length 153 [2024-11-09 06:14:05,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:14:05,030 INFO L471 AbstractCegarLoop]: Abstraction has 379 states and 452 transitions. [2024-11-09 06:14:05,031 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 4 states have internal predecessors, (137), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 06:14:05,031 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 452 transitions. [2024-11-09 06:14:05,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-09 06:14:05,033 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:14:05,033 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:14:05,048 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/mathsat -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)] Ended with exit code 0 [2024-11-09 06:14:05,241 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (12)] Ended with exit code 0 [2024-11-09 06:14:05,434 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/mathsat -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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt [2024-11-09 06:14:05,434 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 06:14:05,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:14:05,435 INFO L85 PathProgramCache]: Analyzing trace with hash 265121960, now seen corresponding path program 1 times [2024-11-09 06:14:05,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:14:05,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1768063620] [2024-11-09 06:14:05,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:14:05,436 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 [2024-11-09 06:14:05,437 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:14:05,438 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/mathsat -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) [2024-11-09 06:14:05,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/mathsat -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 [2024-11-09 06:14:06,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:14:06,553 INFO L255 TraceCheckSpWp]: Trace formula consists of 820 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 06:14:06,557 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:14:06,640 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-09 06:14:06,641 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:14:06,846 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 1 proven. 19 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-09 06:14:06,847 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:14:06,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1768063620] [2024-11-09 06:14:06,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1768063620] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:14:06,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [321146795] [2024-11-09 06:14:06,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:14:06,848 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 06:14:06,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 06:14:06,851 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 06:14:06,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2024-11-09 06:14:08,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:14:08,384 INFO L255 TraceCheckSpWp]: Trace formula consists of 820 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 06:14:08,391 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:14:09,177 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-09 06:14:09,177 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:14:09,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [321146795] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:14:09,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-09 06:14:09,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 5] total 10 [2024-11-09 06:14:09,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167854795] [2024-11-09 06:14:09,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:14:09,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:14:09,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:14:09,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:14:09,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-09 06:14:09,182 INFO L87 Difference]: Start difference. First operand 379 states and 452 transitions. Second operand has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 06:14:11,975 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:14:13,980 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:14:17,124 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:14:19,294 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:14:21,301 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:14:25,218 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:14:27,232 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:14:28,478 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:14:31,179 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:14:31,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:14:31,198 INFO L93 Difference]: Finished difference Result 388 states and 461 transitions. [2024-11-09 06:14:31,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:14:31,199 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 153 [2024-11-09 06:14:31,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:14:31,202 INFO L225 Difference]: With dead ends: 388 [2024-11-09 06:14:31,203 INFO L226 Difference]: Without dead ends: 388 [2024-11-09 06:14:31,203 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 458 GetRequests, 449 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-11-09 06:14:31,205 INFO L432 NwaCegarLoop]: 350 mSDtfsCounter, 275 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 7 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 649 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:14:31,205 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [276 Valid, 649 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 135 Invalid, 7 Unknown, 0 Unchecked, 22.0s Time] [2024-11-09 06:14:31,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2024-11-09 06:14:31,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 381. [2024-11-09 06:14:31,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 368 states have (on average 1.173913043478261) internal successors, (432), 370 states have internal predecessors, (432), 9 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2024-11-09 06:14:31,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 453 transitions. [2024-11-09 06:14:31,223 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 453 transitions. Word has length 153 [2024-11-09 06:14:31,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:14:31,224 INFO L471 AbstractCegarLoop]: Abstraction has 381 states and 453 transitions. [2024-11-09 06:14:31,224 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 06:14:31,224 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 453 transitions. [2024-11-09 06:14:31,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-09 06:14:31,227 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:14:31,227 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:14:31,242 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (14)] Ended with exit code 0 [2024-11-09 06:14:31,442 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2024-11-09 06:14:31,628 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:14:31,628 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 06:14:31,629 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:14:31,629 INFO L85 PathProgramCache]: Analyzing trace with hash -1389143462, now seen corresponding path program 1 times [2024-11-09 06:14:31,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:14:31,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1178251268] [2024-11-09 06:14:31,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:14:31,630 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 [2024-11-09 06:14:31,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:14:31,632 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/mathsat -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) [2024-11-09 06:14:31,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2024-11-09 06:14:32,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:14:33,018 INFO L255 TraceCheckSpWp]: Trace formula consists of 817 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 06:14:33,025 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:14:33,145 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-09 06:14:33,145 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:14:33,385 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 1 proven. 19 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-09 06:14:33,385 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:14:33,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1178251268] [2024-11-09 06:14:33,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1178251268] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:14:33,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [10539016] [2024-11-09 06:14:33,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:14:33,387 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 06:14:33,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 06:14:33,391 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 06:14:33,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2024-11-09 06:14:35,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:14:35,529 INFO L255 TraceCheckSpWp]: Trace formula consists of 817 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 06:14:35,535 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:14:35,569 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-09 06:14:35,570 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:14:35,688 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 1 proven. 19 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-09 06:14:35,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [10539016] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:14:35,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1779634891] [2024-11-09 06:14:35,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:14:35,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:14:35,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:14:35,692 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:14:35,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-09 06:14:36,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:14:36,920 INFO L255 TraceCheckSpWp]: Trace formula consists of 817 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 06:14:36,925 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:14:36,963 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 35 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-09 06:14:36,963 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:14:37,171 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 7 proven. 13 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-09 06:14:37,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1779634891] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:14:37,171 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-09 06:14:37,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 11 [2024-11-09 06:14:37,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314475368] [2024-11-09 06:14:37,173 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-09 06:14:37,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 06:14:37,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:14:37,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 06:14:37,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2024-11-09 06:14:37,176 INFO L87 Difference]: Start difference. First operand 381 states and 453 transitions. Second operand has 11 states, 11 states have (on average 13.727272727272727) internal successors, (151), 11 states have internal predecessors, (151), 2 states have call successors, (8), 2 states have call predecessors, (8), 5 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 06:14:37,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:14:37,940 INFO L93 Difference]: Finished difference Result 396 states and 479 transitions. [2024-11-09 06:14:37,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 06:14:37,942 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 13.727272727272727) internal successors, (151), 11 states have internal predecessors, (151), 2 states have call successors, (8), 2 states have call predecessors, (8), 5 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 153 [2024-11-09 06:14:37,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:14:37,945 INFO L225 Difference]: With dead ends: 396 [2024-11-09 06:14:37,946 INFO L226 Difference]: Without dead ends: 396 [2024-11-09 06:14:37,946 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 921 GetRequests, 903 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=122, Invalid=258, Unknown=0, NotChecked=0, Total=380 [2024-11-09 06:14:37,947 INFO L432 NwaCegarLoop]: 296 mSDtfsCounter, 14 mSDsluCounter, 1158 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 1454 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 06:14:37,947 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 1454 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 06:14:37,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2024-11-09 06:14:37,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 392. [2024-11-09 06:14:37,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 378 states have (on average 1.1904761904761905) internal successors, (450), 380 states have internal predecessors, (450), 9 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2024-11-09 06:14:37,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 471 transitions. [2024-11-09 06:14:37,986 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 471 transitions. Word has length 153 [2024-11-09 06:14:37,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:14:37,986 INFO L471 AbstractCegarLoop]: Abstraction has 392 states and 471 transitions. [2024-11-09 06:14:37,986 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 13.727272727272727) internal successors, (151), 11 states have internal predecessors, (151), 2 states have call successors, (8), 2 states have call predecessors, (8), 5 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 06:14:37,987 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 471 transitions. [2024-11-09 06:14:37,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-09 06:14:37,989 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:14:37,990 INFO L215 NwaCegarLoop]: trace histogram [16, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:14:38,010 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (16)] Ended with exit code 0 [2024-11-09 06:14:38,220 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-09 06:14:38,403 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2024-11-09 06:14:38,591 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:14:38,591 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 06:14:38,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:14:38,592 INFO L85 PathProgramCache]: Analyzing trace with hash 1333588126, now seen corresponding path program 2 times [2024-11-09 06:14:38,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:14:38,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2092758196] [2024-11-09 06:14:38,593 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 06:14:38,593 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 [2024-11-09 06:14:38,593 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:14:38,597 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/mathsat -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) [2024-11-09 06:14:38,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2024-11-09 06:14:39,994 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 06:14:39,994 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:14:40,038 INFO L255 TraceCheckSpWp]: Trace formula consists of 949 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 06:14:40,045 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:14:40,198 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 85 proven. 10 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2024-11-09 06:14:40,198 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:14:40,735 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 1 proven. 91 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2024-11-09 06:14:40,736 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:14:40,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2092758196] [2024-11-09 06:14:40,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2092758196] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:14:40,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [856894843] [2024-11-09 06:14:40,737 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 06:14:40,737 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 06:14:40,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 06:14:40,740 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 06:14:40,744 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2024-11-09 06:14:43,428 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 06:14:43,428 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:14:43,480 INFO L255 TraceCheckSpWp]: Trace formula consists of 949 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 06:14:43,484 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:14:43,529 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 85 proven. 10 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2024-11-09 06:14:43,530 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:14:43,714 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 1 proven. 91 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2024-11-09 06:14:43,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [856894843] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:14:43,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [791529302] [2024-11-09 06:14:43,715 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 06:14:43,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:14:43,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:14:43,718 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:14:43,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-09 06:14:44,979 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 06:14:44,979 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:14:45,004 INFO L255 TraceCheckSpWp]: Trace formula consists of 949 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 06:14:45,008 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:14:45,169 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 140 proven. 10 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2024-11-09 06:14:45,169 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:14:45,741 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 28 proven. 64 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2024-11-09 06:14:45,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [791529302] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:14:45,742 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-09 06:14:45,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8, 8, 8, 8] total 22 [2024-11-09 06:14:45,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870595369] [2024-11-09 06:14:45,743 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-09 06:14:45,744 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-09 06:14:45,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:14:45,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-09 06:14:45,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2024-11-09 06:14:45,769 INFO L87 Difference]: Start difference. First operand 392 states and 471 transitions. Second operand has 22 states, 22 states have (on average 7.409090909090909) internal successors, (163), 22 states have internal predecessors, (163), 2 states have call successors, (8), 2 states have call predecessors, (8), 6 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 06:14:47,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:14:47,902 INFO L93 Difference]: Finished difference Result 412 states and 502 transitions. [2024-11-09 06:14:47,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-09 06:14:47,904 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 7.409090909090909) internal successors, (163), 22 states have internal predecessors, (163), 2 states have call successors, (8), 2 states have call predecessors, (8), 6 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 165 [2024-11-09 06:14:47,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:14:47,906 INFO L225 Difference]: With dead ends: 412 [2024-11-09 06:14:47,907 INFO L226 Difference]: Without dead ends: 406 [2024-11-09 06:14:47,908 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1005 GetRequests, 964 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 340 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=505, Invalid=1301, Unknown=0, NotChecked=0, Total=1806 [2024-11-09 06:14:47,909 INFO L432 NwaCegarLoop]: 297 mSDtfsCounter, 24 mSDsluCounter, 3473 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 3770 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:14:47,909 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 3770 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 287 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-09 06:14:47,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 406 states. [2024-11-09 06:14:47,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 406 to 404. [2024-11-09 06:14:47,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 390 states have (on average 1.1974358974358974) internal successors, (467), 392 states have internal predecessors, (467), 9 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2024-11-09 06:14:47,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 488 transitions. [2024-11-09 06:14:47,923 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 488 transitions. Word has length 165 [2024-11-09 06:14:47,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:14:47,924 INFO L471 AbstractCegarLoop]: Abstraction has 404 states and 488 transitions. [2024-11-09 06:14:47,924 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 7.409090909090909) internal successors, (163), 22 states have internal predecessors, (163), 2 states have call successors, (8), 2 states have call predecessors, (8), 6 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 06:14:47,924 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 488 transitions. [2024-11-09 06:14:47,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2024-11-09 06:14:47,927 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:14:47,928 INFO L215 NwaCegarLoop]: trace histogram [40, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:14:47,956 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2024-11-09 06:14:48,152 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (19)] Forceful destruction successful, exit code 0 [2024-11-09 06:14:48,376 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-11-09 06:14:48,529 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:14:48,529 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 06:14:48,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:14:48,531 INFO L85 PathProgramCache]: Analyzing trace with hash -1116251746, now seen corresponding path program 3 times [2024-11-09 06:14:48,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:14:48,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [40555153] [2024-11-09 06:14:48,533 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 06:14:48,534 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 [2024-11-09 06:14:48,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:14:48,538 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/mathsat -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) [2024-11-09 06:14:48,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2024-11-09 06:14:52,369 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2024-11-09 06:14:52,369 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:14:52,419 INFO L255 TraceCheckSpWp]: Trace formula consists of 624 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-09 06:14:52,424 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:14:52,900 INFO L134 CoverageAnalysis]: Checked inductivity of 965 backedges. 370 proven. 55 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2024-11-09 06:14:52,900 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:14:54,013 INFO L134 CoverageAnalysis]: Checked inductivity of 965 backedges. 370 proven. 55 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2024-11-09 06:14:54,013 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:14:54,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [40555153] [2024-11-09 06:14:54,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [40555153] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:14:54,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1757374827] [2024-11-09 06:14:54,014 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 06:14:54,014 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 06:14:54,014 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 06:14:54,015 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 06:14:54,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process [2024-11-09 06:15:31,428 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2024-11-09 06:15:31,428 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:15:31,528 INFO L255 TraceCheckSpWp]: Trace formula consists of 624 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-09 06:15:31,532 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:15:31,627 INFO L134 CoverageAnalysis]: Checked inductivity of 965 backedges. 370 proven. 55 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2024-11-09 06:15:31,627 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:15:31,998 INFO L134 CoverageAnalysis]: Checked inductivity of 965 backedges. 370 proven. 55 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2024-11-09 06:15:31,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1757374827] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:15:31,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [442333403] [2024-11-09 06:15:31,999 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 06:15:31,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:15:31,999 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:15:32,000 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:15:32,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ef8db1e-b205-40be-881a-fe0f4539d636/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process