./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-MemCleanup-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E --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 94599b38b669e42115f92cee257d9ed4ed5d4777dca7d2ee690bacb4e0d226f0 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 03:10:38,660 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 03:10:38,747 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-MemCleanup-32bit-Taipan_Default.epf [2024-11-14 03:10:38,756 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 03:10:38,756 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 03:10:38,800 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 03:10:38,802 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 03:10:38,803 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 03:10:38,803 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 03:10:38,804 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 03:10:38,805 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 03:10:38,805 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 03:10:38,805 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 03:10:38,805 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 03:10:38,806 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 03:10:38,807 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 03:10:38,807 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 03:10:38,807 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 03:10:38,807 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 03:10:38,807 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 03:10:38,807 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 03:10:38,807 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 03:10:38,808 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-14 03:10:38,808 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-14 03:10:38,808 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 03:10:38,808 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 03:10:38,808 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 03:10:38,808 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 03:10:38,809 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 03:10:38,809 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 03:10:38,809 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 03:10:38,810 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-14 03:10:38,810 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-14 03:10:38,810 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 03:10:38,810 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 03:10:38,811 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-14 03:10:38,811 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 03:10:38,812 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 03:10:38,812 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 03:10:38,812 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 03:10:38,812 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 03:10:38,812 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 03:10:38,812 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 03:10:38,812 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 03:10:38,812 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:10:38,813 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 03:10:38,813 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 03:10:38,813 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 03:10:38,813 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 03:10:38,814 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 03:10:38,814 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 03:10:38,814 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 03:10:38,814 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E 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 -> 94599b38b669e42115f92cee257d9ed4ed5d4777dca7d2ee690bacb4e0d226f0 [2024-11-14 03:10:39,154 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 03:10:39,164 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 03:10:39,166 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 03:10:39,168 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 03:10:39,168 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 03:10:39,170 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-3.i Unable to find full path for "g++" [2024-11-14 03:10:41,096 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 03:10:41,535 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 03:10:41,536 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-3.i [2024-11-14 03:10:41,562 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/data/61baf73c5/0d6ffd2bd18e413cbeea7a0439dc7749/FLAG6ea5bf441 [2024-11-14 03:10:41,582 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/data/61baf73c5/0d6ffd2bd18e413cbeea7a0439dc7749 [2024-11-14 03:10:41,587 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 03:10:41,588 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 03:10:41,591 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 03:10:41,591 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 03:10:41,595 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 03:10:41,596 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:10:41" (1/1) ... [2024-11-14 03:10:41,597 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4485fcce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:10:41, skipping insertion in model container [2024-11-14 03:10:41,597 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:10:41" (1/1) ... [2024-11-14 03:10:41,665 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 03:10:42,178 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:10:42,223 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:10:42,226 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:10:42,230 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:10:42,238 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:10:42,279 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:10:42,281 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:10:42,287 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:10:42,293 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:10:42,323 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:10:42,323 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:10:42,331 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:10:42,331 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:10:42,336 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:10:42,343 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:10:42,345 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:10:42,349 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:10:42,354 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:10:42,363 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:10:42,367 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:10:42,367 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:10:42,368 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:10:42,375 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:10:42,388 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:10:42,400 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) [2024-11-14 03:10:42,401 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2faac07e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:10:42, skipping insertion in model container [2024-11-14 03:10:42,401 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 03:10:42,401 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-11-14 03:10:42,403 INFO L158 Benchmark]: Toolchain (without parser) took 814.28ms. Allocated memory is still 117.4MB. Free memory was 92.4MB in the beginning and 68.9MB in the end (delta: 23.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-14 03:10:42,403 INFO L158 Benchmark]: CDTParser took 0.48ms. Allocated memory is still 142.6MB. Free memory is still 80.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:10:42,404 INFO L158 Benchmark]: CACSL2BoogieTranslator took 810.68ms. Allocated memory is still 117.4MB. Free memory was 92.4MB in the beginning and 68.9MB in the end (delta: 23.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-14 03:10:42,405 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48ms. Allocated memory is still 142.6MB. Free memory is still 80.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 810.68ms. Allocated memory is still 117.4MB. Free memory was 92.4MB in the beginning and 68.9MB in the end (delta: 23.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 760]: 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/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-MemCleanup-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E --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 94599b38b669e42115f92cee257d9ed4ed5d4777dca7d2ee690bacb4e0d226f0 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 03:10:44,882 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 03:10:44,998 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-MemCleanup-32bit-Taipan_Bitvector.epf [2024-11-14 03:10:45,012 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 03:10:45,013 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 03:10:45,083 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 03:10:45,084 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 03:10:45,085 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 03:10:45,085 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 03:10:45,086 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 03:10:45,087 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 03:10:45,087 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 03:10:45,087 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 03:10:45,087 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 03:10:45,087 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 03:10:45,088 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 03:10:45,088 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-14 03:10:45,088 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-14 03:10:45,088 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 03:10:45,089 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 03:10:45,089 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 03:10:45,089 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 03:10:45,089 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 03:10:45,089 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 03:10:45,089 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 03:10:45,089 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-14 03:10:45,089 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-14 03:10:45,089 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 03:10:45,089 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 03:10:45,089 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-14 03:10:45,090 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-14 03:10:45,090 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 03:10:45,090 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-14 03:10:45,090 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 03:10:45,090 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 03:10:45,091 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 03:10:45,091 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 03:10:45,091 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 03:10:45,091 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-14 03:10:45,091 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 03:10:45,091 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 03:10:45,091 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:10:45,091 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 03:10:45,091 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 03:10:45,091 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-14 03:10:45,092 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-14 03:10:45,092 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 03:10:45,092 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 03:10:45,092 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E 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 -> 94599b38b669e42115f92cee257d9ed4ed5d4777dca7d2ee690bacb4e0d226f0 [2024-11-14 03:10:45,412 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 03:10:45,421 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 03:10:45,423 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 03:10:45,424 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 03:10:45,425 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 03:10:45,426 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-3.i Unable to find full path for "g++" [2024-11-14 03:10:47,298 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 03:10:47,735 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 03:10:47,736 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-3.i [2024-11-14 03:10:47,753 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/data/460e7a955/3f46e01080164ef5b60746b0db0b6618/FLAG56c11d6f7 [2024-11-14 03:10:47,862 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/data/460e7a955/3f46e01080164ef5b60746b0db0b6618 [2024-11-14 03:10:47,867 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 03:10:47,869 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 03:10:47,871 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 03:10:47,871 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 03:10:47,877 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 03:10:47,878 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:10:47" (1/1) ... [2024-11-14 03:10:47,879 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@aab1a53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:10:47, skipping insertion in model container [2024-11-14 03:10:47,880 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:10:47" (1/1) ... [2024-11-14 03:10:47,950 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 03:10:48,420 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:10:48,459 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:10:48,468 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:10:48,478 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:10:48,495 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:10:48,535 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:10:48,538 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:10:48,544 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:10:48,556 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:10:48,588 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:10:48,588 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:10:48,591 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:10:48,591 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:10:48,593 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:10:48,596 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:10:48,597 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:10:48,598 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:10:48,599 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:10:48,605 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:10:48,606 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:10:48,610 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:10:48,611 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:10:48,625 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:10:48,636 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:10:48,666 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-14 03:10:48,692 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 03:10:48,748 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:10:48,779 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:10:48,781 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:10:48,788 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:10:48,800 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:10:48,841 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:10:48,843 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:10:48,846 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:10:48,852 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:10:48,871 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:10:48,872 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:10:48,874 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:10:48,874 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:10:48,876 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:10:48,878 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:10:48,879 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:10:48,883 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:10:48,884 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:10:48,892 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:10:48,893 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:10:48,895 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:10:48,896 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:10:48,903 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:10:48,907 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:10:48,919 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 03:10:49,082 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:10:49,122 INFO L204 MainTranslator]: Completed translation [2024-11-14 03:10:49,122 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:10:49 WrapperNode [2024-11-14 03:10:49,122 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 03:10:49,123 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 03:10:49,123 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 03:10:49,123 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 03:10:49,130 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:10:49" (1/1) ... [2024-11-14 03:10:49,179 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:10:49" (1/1) ... [2024-11-14 03:10:49,253 INFO L138 Inliner]: procedures = 180, calls = 474, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1673 [2024-11-14 03:10:49,254 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 03:10:49,254 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 03:10:49,255 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 03:10:49,255 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 03:10:49,266 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:10:49" (1/1) ... [2024-11-14 03:10:49,266 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:10:49" (1/1) ... [2024-11-14 03:10:49,284 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:10:49" (1/1) ... [2024-11-14 03:10:49,286 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:10:49" (1/1) ... [2024-11-14 03:10:49,373 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:10:49" (1/1) ... [2024-11-14 03:10:49,393 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:10:49" (1/1) ... [2024-11-14 03:10:49,405 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:10:49" (1/1) ... [2024-11-14 03:10:49,413 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:10:49" (1/1) ... [2024-11-14 03:10:49,434 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 03:10:49,436 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 03:10:49,436 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 03:10:49,437 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 03:10:49,439 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:10:49" (1/1) ... [2024-11-14 03:10:49,446 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:10:49,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:10:49,480 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 03:10:49,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 03:10:49,513 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-11-14 03:10:49,513 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-11-14 03:10:49,513 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2024-11-14 03:10:49,513 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-14 03:10:49,513 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-14 03:10:49,513 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-14 03:10:49,513 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2024-11-14 03:10:49,513 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2024-11-14 03:10:49,513 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-14 03:10:49,514 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 03:10:49,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-14 03:10:49,514 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-14 03:10:49,514 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-14 03:10:49,514 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-14 03:10:49,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-14 03:10:49,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-14 03:10:49,515 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 03:10:49,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 03:10:49,861 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 03:10:49,864 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 03:11:02,746 INFO L? ?]: Removed 222 outVars from TransFormulas that were not future-live. [2024-11-14 03:11:02,746 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 03:11:02,773 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 03:11:02,773 INFO L316 CfgBuilder]: Removed 100 assume(true) statements. [2024-11-14 03:11:02,774 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:11:02 BoogieIcfgContainer [2024-11-14 03:11:02,774 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 03:11:02,778 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 03:11:02,778 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 03:11:02,783 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 03:11:02,783 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 03:10:47" (1/3) ... [2024-11-14 03:11:02,784 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b050031 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:11:02, skipping insertion in model container [2024-11-14 03:11:02,784 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:10:49" (2/3) ... [2024-11-14 03:11:02,785 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b050031 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:11:02, skipping insertion in model container [2024-11-14 03:11:02,785 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:11:02" (3/3) ... [2024-11-14 03:11:02,787 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test5-3.i [2024-11-14 03:11:02,804 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 03:11:02,806 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_SFH_test5-3.i that has 4 procedures, 322 locations, 1 initial locations, 56 loop locations, and 2 error locations. [2024-11-14 03:11:02,871 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 03:11:02,885 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;@3ada01c3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 03:11:02,886 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-14 03:11:02,892 INFO L276 IsEmpty]: Start isEmpty. Operand has 322 states, 303 states have (on average 1.6732673267326732) internal successors, (507), 312 states have internal predecessors, (507), 13 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-14 03:11:02,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-14 03:11:02,901 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:11:02,902 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:11:02,903 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 03:11:02,909 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:11:02,909 INFO L85 PathProgramCache]: Analyzing trace with hash 1612191385, now seen corresponding path program 1 times [2024-11-14 03:11:02,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:11:02,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1757899004] [2024-11-14 03:11:02,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:11:02,924 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 [2024-11-14 03:11:02,925 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:11:02,932 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/mathsat -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) [2024-11-14 03:11:02,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 [2024-11-14 03:11:03,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:11:03,249 INFO L255 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-14 03:11:03,256 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:11:03,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:11:03,273 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:11:03,274 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:11:03,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1757899004] [2024-11-14 03:11:03,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1757899004] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:11:03,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:11:03,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:11:03,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416117159] [2024-11-14 03:11:03,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:11:03,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-14 03:11:03,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:11:03,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-14 03:11:03,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 03:11:03,318 INFO L87 Difference]: Start difference. First operand has 322 states, 303 states have (on average 1.6732673267326732) internal successors, (507), 312 states have internal predecessors, (507), 13 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:11:03,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:11:03,373 INFO L93 Difference]: Finished difference Result 320 states and 421 transitions. [2024-11-14 03:11:03,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-14 03:11:03,375 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2024-11-14 03:11:03,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:11:03,384 INFO L225 Difference]: With dead ends: 320 [2024-11-14 03:11:03,385 INFO L226 Difference]: Without dead ends: 318 [2024-11-14 03:11:03,386 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 03:11:03,389 INFO L432 NwaCegarLoop]: 421 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 03:11:03,390 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 03:11:03,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2024-11-14 03:11:03,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 318. [2024-11-14 03:11:03,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 301 states have (on average 1.3122923588039868) internal successors, (395), 308 states have internal predecessors, (395), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-14 03:11:03,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 419 transitions. [2024-11-14 03:11:03,456 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 419 transitions. Word has length 10 [2024-11-14 03:11:03,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:11:03,456 INFO L471 AbstractCegarLoop]: Abstraction has 318 states and 419 transitions. [2024-11-14 03:11:03,457 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:11:03,457 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 419 transitions. [2024-11-14 03:11:03,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-14 03:11:03,458 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:11:03,459 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:11:03,463 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 [2024-11-14 03:11:03,659 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:11:03,660 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 03:11:03,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:11:03,660 INFO L85 PathProgramCache]: Analyzing trace with hash -1988202745, now seen corresponding path program 1 times [2024-11-14 03:11:03,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:11:03,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1981780154] [2024-11-14 03:11:03,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:11:03,661 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 [2024-11-14 03:11:03,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:11:03,663 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/mathsat -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) [2024-11-14 03:11:03,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 [2024-11-14 03:11:03,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:11:03,890 INFO L255 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-14 03:11:03,892 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:11:03,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:11:03,918 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:11:03,918 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:11:03,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1981780154] [2024-11-14 03:11:03,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1981780154] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:11:03,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:11:03,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:11:03,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421004730] [2024-11-14 03:11:03,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:11:03,919 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:11:03,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:11:03,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:11:03,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:11:03,920 INFO L87 Difference]: Start difference. First operand 318 states and 419 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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) [2024-11-14 03:11:04,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:11:04,163 INFO L93 Difference]: Finished difference Result 565 states and 748 transitions. [2024-11-14 03:11:04,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:11:04,167 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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 11 [2024-11-14 03:11:04,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:11:04,170 INFO L225 Difference]: With dead ends: 565 [2024-11-14 03:11:04,170 INFO L226 Difference]: Without dead ends: 565 [2024-11-14 03:11:04,170 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:11:04,171 INFO L432 NwaCegarLoop]: 443 mSDtfsCounter, 304 mSDsluCounter, 410 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 315 SdHoareTripleChecker+Valid, 853 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:11:04,171 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [315 Valid, 853 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 03:11:04,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2024-11-14 03:11:04,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 320. [2024-11-14 03:11:04,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 303 states have (on average 1.3102310231023102) internal successors, (397), 310 states have internal predecessors, (397), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-14 03:11:04,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 421 transitions. [2024-11-14 03:11:04,194 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 421 transitions. Word has length 11 [2024-11-14 03:11:04,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:11:04,195 INFO L471 AbstractCegarLoop]: Abstraction has 320 states and 421 transitions. [2024-11-14 03:11:04,195 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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) [2024-11-14 03:11:04,195 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 421 transitions. [2024-11-14 03:11:04,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-14 03:11:04,199 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:11:04,199 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:11:04,206 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 [2024-11-14 03:11:04,402 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:11:04,402 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 03:11:04,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:11:04,403 INFO L85 PathProgramCache]: Analyzing trace with hash 78521903, now seen corresponding path program 1 times [2024-11-14 03:11:04,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:11:04,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [534619659] [2024-11-14 03:11:04,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:11:04,405 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 [2024-11-14 03:11:04,405 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:11:04,407 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/mathsat -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) [2024-11-14 03:11:04,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 [2024-11-14 03:11:05,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:11:05,187 INFO L255 TraceCheckSpWp]: Trace formula consists of 616 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 03:11:05,193 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:11:05,250 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:11:05,250 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:11:05,251 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:11:05,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [534619659] [2024-11-14 03:11:05,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [534619659] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:11:05,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:11:05,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 03:11:05,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938642398] [2024-11-14 03:11:05,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:11:05,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:11:05,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:11:05,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:11:05,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:11:05,253 INFO L87 Difference]: Start difference. First operand 320 states and 421 transitions. Second operand has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:11:05,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:11:05,448 INFO L93 Difference]: Finished difference Result 323 states and 416 transitions. [2024-11-14 03:11:05,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:11:05,449 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 152 [2024-11-14 03:11:05,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:11:05,450 INFO L225 Difference]: With dead ends: 323 [2024-11-14 03:11:05,450 INFO L226 Difference]: Without dead ends: 323 [2024-11-14 03:11:05,451 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:11:05,451 INFO L432 NwaCegarLoop]: 389 mSDtfsCounter, 30 mSDsluCounter, 759 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 1148 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:11:05,452 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 1148 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 03:11:05,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2024-11-14 03:11:05,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 323. [2024-11-14 03:11:05,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 306 states have (on average 1.2810457516339868) internal successors, (392), 313 states have internal predecessors, (392), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-14 03:11:05,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 416 transitions. [2024-11-14 03:11:05,466 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 416 transitions. Word has length 152 [2024-11-14 03:11:05,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:11:05,466 INFO L471 AbstractCegarLoop]: Abstraction has 323 states and 416 transitions. [2024-11-14 03:11:05,467 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:11:05,467 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 416 transitions. [2024-11-14 03:11:05,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-14 03:11:05,474 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:11:05,474 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:11:05,487 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-11-14 03:11:05,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:11:05,675 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 03:11:05,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:11:05,675 INFO L85 PathProgramCache]: Analyzing trace with hash 1461604259, now seen corresponding path program 1 times [2024-11-14 03:11:05,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:11:05,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [830829135] [2024-11-14 03:11:05,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:11:05,677 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 [2024-11-14 03:11:05,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:11:05,679 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/mathsat -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) [2024-11-14 03:11:05,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 [2024-11-14 03:11:06,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:11:06,453 INFO L255 TraceCheckSpWp]: Trace formula consists of 604 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 03:11:06,457 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:11:06,638 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:11:06,638 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:11:06,638 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:11:06,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [830829135] [2024-11-14 03:11:06,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [830829135] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:11:06,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:11:06,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 03:11:06,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39793076] [2024-11-14 03:11:06,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:11:06,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 03:11:06,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:11:06,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 03:11:06,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:11:06,641 INFO L87 Difference]: Start difference. First operand 323 states and 416 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 5 states have internal predecessors, (151), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:11:06,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:11:06,798 INFO L93 Difference]: Finished difference Result 317 states and 406 transitions. [2024-11-14 03:11:06,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:11:06,801 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 5 states have internal predecessors, (151), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 152 [2024-11-14 03:11:06,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:11:06,803 INFO L225 Difference]: With dead ends: 317 [2024-11-14 03:11:06,803 INFO L226 Difference]: Without dead ends: 317 [2024-11-14 03:11:06,803 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:11:06,804 INFO L432 NwaCegarLoop]: 388 mSDtfsCounter, 0 mSDsluCounter, 757 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1145 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:11:06,805 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1145 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:11:06,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2024-11-14 03:11:06,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 317. [2024-11-14 03:11:06,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 300 states have (on average 1.2733333333333334) internal successors, (382), 307 states have internal predecessors, (382), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-14 03:11:06,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 406 transitions. [2024-11-14 03:11:06,821 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 406 transitions. Word has length 152 [2024-11-14 03:11:06,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:11:06,822 INFO L471 AbstractCegarLoop]: Abstraction has 317 states and 406 transitions. [2024-11-14 03:11:06,822 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 5 states have internal predecessors, (151), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:11:06,822 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 406 transitions. [2024-11-14 03:11:06,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-14 03:11:06,824 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:11:06,824 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:11:06,837 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/mathsat -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)] Ended with exit code 0 [2024-11-14 03:11:07,025 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:11:07,025 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 03:11:07,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:11:07,025 INFO L85 PathProgramCache]: Analyzing trace with hash -782954139, now seen corresponding path program 1 times [2024-11-14 03:11:07,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:11:07,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [8763868] [2024-11-14 03:11:07,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:11:07,027 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 [2024-11-14 03:11:07,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:11:07,028 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/mathsat -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) [2024-11-14 03:11:07,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 [2024-11-14 03:11:07,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:11:07,682 INFO L255 TraceCheckSpWp]: Trace formula consists of 606 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 03:11:07,687 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:11:08,219 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:11:08,219 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:11:08,219 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:11:08,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [8763868] [2024-11-14 03:11:08,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [8763868] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:11:08,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:11:08,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:11:08,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960110820] [2024-11-14 03:11:08,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:11:08,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:11:08,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:11:08,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:11:08,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:11:08,223 INFO L87 Difference]: Start difference. First operand 317 states and 406 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:11:09,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:11:09,198 INFO L93 Difference]: Finished difference Result 406 states and 512 transitions. [2024-11-14 03:11:09,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:11:09,201 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 152 [2024-11-14 03:11:09,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:11:09,203 INFO L225 Difference]: With dead ends: 406 [2024-11-14 03:11:09,203 INFO L226 Difference]: Without dead ends: 406 [2024-11-14 03:11:09,204 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:11:09,204 INFO L432 NwaCegarLoop]: 427 mSDtfsCounter, 68 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 810 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-14 03:11:09,205 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 810 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-14 03:11:09,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 406 states. [2024-11-14 03:11:09,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 406 to 353. [2024-11-14 03:11:09,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 336 states have (on average 1.244047619047619) internal successors, (418), 343 states have internal predecessors, (418), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-14 03:11:09,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 442 transitions. [2024-11-14 03:11:09,221 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 442 transitions. Word has length 152 [2024-11-14 03:11:09,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:11:09,221 INFO L471 AbstractCegarLoop]: Abstraction has 353 states and 442 transitions. [2024-11-14 03:11:09,222 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:11:09,222 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 442 transitions. [2024-11-14 03:11:09,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-14 03:11:09,229 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:11:09,229 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:11:09,246 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2024-11-14 03:11:09,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:11:09,430 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 03:11:09,431 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:11:09,431 INFO L85 PathProgramCache]: Analyzing trace with hash 456604716, now seen corresponding path program 1 times [2024-11-14 03:11:09,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:11:09,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [737038611] [2024-11-14 03:11:09,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:11:09,433 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 [2024-11-14 03:11:09,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:11:09,435 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/mathsat -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) [2024-11-14 03:11:09,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 [2024-11-14 03:11:10,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:11:10,255 INFO L255 TraceCheckSpWp]: Trace formula consists of 735 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 03:11:10,260 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:11:10,313 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:11:10,314 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:11:10,314 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:11:10,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [737038611] [2024-11-14 03:11:10,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [737038611] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:11:10,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:11:10,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 03:11:10,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809381391] [2024-11-14 03:11:10,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:11:10,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:11:10,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:11:10,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:11:10,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:11:10,318 INFO L87 Difference]: Start difference. First operand 353 states and 442 transitions. Second operand has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 03:11:10,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:11:10,410 INFO L93 Difference]: Finished difference Result 356 states and 447 transitions. [2024-11-14 03:11:10,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 03:11:10,411 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 167 [2024-11-14 03:11:10,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:11:10,413 INFO L225 Difference]: With dead ends: 356 [2024-11-14 03:11:10,413 INFO L226 Difference]: Without dead ends: 356 [2024-11-14 03:11:10,413 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:11:10,416 INFO L432 NwaCegarLoop]: 400 mSDtfsCounter, 0 mSDsluCounter, 793 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1193 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 [2024-11-14 03:11:10,419 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1193 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:11:10,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2024-11-14 03:11:10,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 356. [2024-11-14 03:11:10,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 338 states have (on average 1.2455621301775148) internal successors, (421), 346 states have internal predecessors, (421), 13 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 7 states have call predecessors, (13), 11 states have call successors, (13) [2024-11-14 03:11:10,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 447 transitions. [2024-11-14 03:11:10,436 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 447 transitions. Word has length 167 [2024-11-14 03:11:10,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:11:10,436 INFO L471 AbstractCegarLoop]: Abstraction has 356 states and 447 transitions. [2024-11-14 03:11:10,437 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 03:11:10,437 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 447 transitions. [2024-11-14 03:11:10,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-14 03:11:10,440 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:11:10,441 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:11:10,454 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2024-11-14 03:11:10,641 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:11:10,641 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 03:11:10,642 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:11:10,642 INFO L85 PathProgramCache]: Analyzing trace with hash -1124349526, now seen corresponding path program 1 times [2024-11-14 03:11:10,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:11:10,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1252373403] [2024-11-14 03:11:10,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:11:10,643 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 [2024-11-14 03:11:10,643 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:11:10,645 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/mathsat -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) [2024-11-14 03:11:10,646 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 [2024-11-14 03:11:11,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:11:11,449 INFO L255 TraceCheckSpWp]: Trace formula consists of 757 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 03:11:11,456 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:11:11,525 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-14 03:11:11,525 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:11:11,687 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 03:11:11,687 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:11:11,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1252373403] [2024-11-14 03:11:11,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1252373403] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:11:11,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1811236733] [2024-11-14 03:11:11,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:11:11,688 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 03:11:11,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 03:11:11,691 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 03:11:11,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2024-11-14 03:11:12,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:11:12,771 INFO L255 TraceCheckSpWp]: Trace formula consists of 757 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 03:11:12,775 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:11:12,852 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-14 03:11:12,852 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:11:12,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1811236733] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:11:12,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-14 03:11:12,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5, 5] total 9 [2024-11-14 03:11:12,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302711283] [2024-11-14 03:11:12,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:11:12,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:11:12,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:11:12,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:11:12,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-14 03:11:12,854 INFO L87 Difference]: Start difference. First operand 356 states and 447 transitions. Second operand has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 03:11:12,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:11:12,977 INFO L93 Difference]: Finished difference Result 376 states and 467 transitions. [2024-11-14 03:11:12,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:11:12,978 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 169 [2024-11-14 03:11:12,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:11:12,980 INFO L225 Difference]: With dead ends: 376 [2024-11-14 03:11:12,980 INFO L226 Difference]: Without dead ends: 376 [2024-11-14 03:11:12,980 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 504 GetRequests, 497 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-14 03:11:12,981 INFO L432 NwaCegarLoop]: 384 mSDtfsCounter, 5 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 753 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:11:12,982 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 753 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:11:12,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2024-11-14 03:11:12,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 376. [2024-11-14 03:11:12,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 358 states have (on average 1.2318435754189945) internal successors, (441), 366 states have internal predecessors, (441), 13 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 7 states have call predecessors, (13), 11 states have call successors, (13) [2024-11-14 03:11:13,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 467 transitions. [2024-11-14 03:11:13,000 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 467 transitions. Word has length 169 [2024-11-14 03:11:13,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:11:13,001 INFO L471 AbstractCegarLoop]: Abstraction has 376 states and 467 transitions. [2024-11-14 03:11:13,001 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 03:11:13,001 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 467 transitions. [2024-11-14 03:11:13,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-14 03:11:13,003 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:11:13,003 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:11:13,016 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2024-11-14 03:11:13,208 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (9)] Ended with exit code 0 [2024-11-14 03:11:13,404 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt [2024-11-14 03:11:13,404 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 03:11:13,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:11:13,405 INFO L85 PathProgramCache]: Analyzing trace with hash -66511448, now seen corresponding path program 1 times [2024-11-14 03:11:13,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:11:13,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [896871753] [2024-11-14 03:11:13,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:11:13,406 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 [2024-11-14 03:11:13,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:11:13,409 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/mathsat -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) [2024-11-14 03:11:13,411 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2024-11-14 03:11:14,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:11:14,251 INFO L255 TraceCheckSpWp]: Trace formula consists of 759 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 03:11:14,254 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:11:14,317 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-14 03:11:14,317 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:11:14,464 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 03:11:14,464 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:11:14,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [896871753] [2024-11-14 03:11:14,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [896871753] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:11:14,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1751184697] [2024-11-14 03:11:14,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:11:14,465 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 03:11:14,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 03:11:14,467 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 03:11:14,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2024-11-14 03:11:15,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:11:15,590 INFO L255 TraceCheckSpWp]: Trace formula consists of 759 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 03:11:15,595 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:11:16,220 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-14 03:11:16,220 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:11:16,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1751184697] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:11:16,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-14 03:11:16,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5, 5] total 9 [2024-11-14 03:11:16,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797080012] [2024-11-14 03:11:16,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:11:16,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:11:16,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:11:16,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:11:16,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-14 03:11:16,223 INFO L87 Difference]: Start difference. First operand 376 states and 467 transitions. Second operand has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 03:11:17,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:11:17,051 INFO L93 Difference]: Finished difference Result 670 states and 843 transitions. [2024-11-14 03:11:17,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:11:17,051 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 169 [2024-11-14 03:11:17,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:11:17,056 INFO L225 Difference]: With dead ends: 670 [2024-11-14 03:11:17,057 INFO L226 Difference]: Without dead ends: 670 [2024-11-14 03:11:17,058 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 504 GetRequests, 497 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-14 03:11:17,058 INFO L432 NwaCegarLoop]: 512 mSDtfsCounter, 304 mSDsluCounter, 373 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 885 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-14 03:11:17,059 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [313 Valid, 885 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-14 03:11:17,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 670 states. [2024-11-14 03:11:17,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 670 to 613. [2024-11-14 03:11:17,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 613 states, 586 states have (on average 1.2320819112627985) internal successors, (722), 599 states have internal predecessors, (722), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (24), 12 states have call predecessors, (24), 20 states have call successors, (24) [2024-11-14 03:11:17,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 613 states to 613 states and 768 transitions. [2024-11-14 03:11:17,090 INFO L78 Accepts]: Start accepts. Automaton has 613 states and 768 transitions. Word has length 169 [2024-11-14 03:11:17,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:11:17,091 INFO L471 AbstractCegarLoop]: Abstraction has 613 states and 768 transitions. [2024-11-14 03:11:17,092 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 03:11:17,092 INFO L276 IsEmpty]: Start isEmpty. Operand 613 states and 768 transitions. [2024-11-14 03:11:17,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-14 03:11:17,096 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:11:17,096 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:11:17,109 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2024-11-14 03:11:17,305 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (11)] Ended with exit code 0 [2024-11-14 03:11:17,501 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt [2024-11-14 03:11:17,501 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 03:11:17,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:11:17,501 INFO L85 PathProgramCache]: Analyzing trace with hash -1293261936, now seen corresponding path program 1 times [2024-11-14 03:11:17,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:11:17,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1028932927] [2024-11-14 03:11:17,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:11:17,502 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 [2024-11-14 03:11:17,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:11:17,504 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/mathsat -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) [2024-11-14 03:11:17,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2024-11-14 03:11:18,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:11:18,403 INFO L255 TraceCheckSpWp]: Trace formula consists of 775 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 03:11:18,406 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:11:18,464 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-14 03:11:18,464 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:11:18,597 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 03:11:18,597 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:11:18,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1028932927] [2024-11-14 03:11:18,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1028932927] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:11:18,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1499647487] [2024-11-14 03:11:18,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:11:18,597 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 03:11:18,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 03:11:18,600 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 03:11:18,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2024-11-14 03:11:19,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:11:19,789 INFO L255 TraceCheckSpWp]: Trace formula consists of 775 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 03:11:19,794 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:11:21,168 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-14 03:11:21,168 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:11:21,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1499647487] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:11:21,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-14 03:11:21,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5, 5] total 9 [2024-11-14 03:11:21,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30059628] [2024-11-14 03:11:21,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:11:21,169 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:11:21,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:11:21,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:11:21,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-14 03:11:21,170 INFO L87 Difference]: Start difference. First operand 613 states and 768 transitions. Second operand has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 03:11:21,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:11:21,672 INFO L93 Difference]: Finished difference Result 810 states and 1021 transitions. [2024-11-14 03:11:21,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:11:21,680 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 177 [2024-11-14 03:11:21,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:11:21,683 INFO L225 Difference]: With dead ends: 810 [2024-11-14 03:11:21,683 INFO L226 Difference]: Without dead ends: 810 [2024-11-14 03:11:21,684 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 528 GetRequests, 521 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-14 03:11:21,684 INFO L432 NwaCegarLoop]: 456 mSDtfsCounter, 154 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 846 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-14 03:11:21,684 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 846 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-14 03:11:21,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 810 states. [2024-11-14 03:11:21,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 810 to 753. [2024-11-14 03:11:21,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 753 states, 723 states have (on average 1.2351313969571232) internal successors, (893), 736 states have internal predecessors, (893), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (28), 15 states have call predecessors, (28), 23 states have call successors, (28) [2024-11-14 03:11:21,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 753 states to 753 states and 946 transitions. [2024-11-14 03:11:21,706 INFO L78 Accepts]: Start accepts. Automaton has 753 states and 946 transitions. Word has length 177 [2024-11-14 03:11:21,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:11:21,706 INFO L471 AbstractCegarLoop]: Abstraction has 753 states and 946 transitions. [2024-11-14 03:11:21,707 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 03:11:21,707 INFO L276 IsEmpty]: Start isEmpty. Operand 753 states and 946 transitions. [2024-11-14 03:11:21,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2024-11-14 03:11:21,709 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:11:21,709 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:11:21,718 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (13)] Ended with exit code 0 [2024-11-14 03:11:21,923 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/mathsat -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)] Ended with exit code 0 [2024-11-14 03:11:22,113 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:11:22,113 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 03:11:22,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:11:22,114 INFO L85 PathProgramCache]: Analyzing trace with hash -194509834, now seen corresponding path program 1 times [2024-11-14 03:11:22,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:11:22,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1279093757] [2024-11-14 03:11:22,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:11:22,115 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 [2024-11-14 03:11:22,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:11:22,117 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/mathsat -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) [2024-11-14 03:11:22,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2024-11-14 03:11:23,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:11:23,081 INFO L255 TraceCheckSpWp]: Trace formula consists of 910 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 03:11:23,084 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:11:23,147 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-14 03:11:23,148 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:11:23,278 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 1 proven. 19 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-14 03:11:23,278 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:11:23,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1279093757] [2024-11-14 03:11:23,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1279093757] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:11:23,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [137240808] [2024-11-14 03:11:23,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:11:23,279 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 03:11:23,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 03:11:23,281 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 03:11:23,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2024-11-14 03:11:24,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:11:24,596 INFO L255 TraceCheckSpWp]: Trace formula consists of 910 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 03:11:24,601 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:11:24,681 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2024-11-14 03:11:24,681 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:11:24,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [137240808] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:11:24,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-14 03:11:24,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5, 5] total 9 [2024-11-14 03:11:24,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865557817] [2024-11-14 03:11:24,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:11:24,682 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:11:24,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:11:24,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:11:24,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-14 03:11:24,683 INFO L87 Difference]: Start difference. First operand 753 states and 946 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-14 03:11:24,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:11:24,842 INFO L93 Difference]: Finished difference Result 813 states and 1006 transitions. [2024-11-14 03:11:24,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:11:24,842 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 186 [2024-11-14 03:11:24,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:11:24,845 INFO L225 Difference]: With dead ends: 813 [2024-11-14 03:11:24,846 INFO L226 Difference]: Without dead ends: 813 [2024-11-14 03:11:24,847 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 555 GetRequests, 548 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-14 03:11:24,849 INFO L432 NwaCegarLoop]: 384 mSDtfsCounter, 5 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 753 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:11:24,849 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 753 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:11:24,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 813 states. [2024-11-14 03:11:24,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 813 to 813. [2024-11-14 03:11:24,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 813 states, 783 states have (on average 1.2171136653895274) internal successors, (953), 796 states have internal predecessors, (953), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (28), 15 states have call predecessors, (28), 23 states have call successors, (28) [2024-11-14 03:11:24,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 813 states to 813 states and 1006 transitions. [2024-11-14 03:11:24,875 INFO L78 Accepts]: Start accepts. Automaton has 813 states and 1006 transitions. Word has length 186 [2024-11-14 03:11:24,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:11:24,875 INFO L471 AbstractCegarLoop]: Abstraction has 813 states and 1006 transitions. [2024-11-14 03:11:24,876 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-14 03:11:24,876 INFO L276 IsEmpty]: Start isEmpty. Operand 813 states and 1006 transitions. [2024-11-14 03:11:24,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2024-11-14 03:11:24,878 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:11:24,878 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:11:24,892 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2024-11-14 03:11:25,086 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (15)] Ended with exit code 0 [2024-11-14 03:11:25,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt [2024-11-14 03:11:25,279 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 03:11:25,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:11:25,279 INFO L85 PathProgramCache]: Analyzing trace with hash -256549448, now seen corresponding path program 1 times [2024-11-14 03:11:25,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:11:25,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [382795464] [2024-11-14 03:11:25,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:11:25,280 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 [2024-11-14 03:11:25,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:11:25,282 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/mathsat -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) [2024-11-14 03:11:25,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2024-11-14 03:11:26,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:11:26,259 INFO L255 TraceCheckSpWp]: Trace formula consists of 912 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 03:11:26,262 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:11:26,301 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-14 03:11:26,302 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:11:26,458 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 1 proven. 19 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-14 03:11:26,458 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:11:26,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [382795464] [2024-11-14 03:11:26,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [382795464] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:11:26,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1259609609] [2024-11-14 03:11:26,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:11:26,459 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 03:11:26,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 03:11:26,462 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 03:11:26,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2024-11-14 03:11:27,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:11:27,817 INFO L255 TraceCheckSpWp]: Trace formula consists of 912 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 03:11:27,820 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:11:27,885 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-14 03:11:27,885 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:11:27,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1259609609] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:11:27,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-14 03:11:27,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 5] total 10 [2024-11-14 03:11:27,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953858147] [2024-11-14 03:11:27,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:11:27,886 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:11:27,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:11:27,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:11:27,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-14 03:11:27,887 INFO L87 Difference]: Start difference. First operand 813 states and 1006 transitions. Second operand has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-14 03:11:28,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:11:28,044 INFO L93 Difference]: Finished difference Result 762 states and 922 transitions. [2024-11-14 03:11:28,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:11:28,045 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 186 [2024-11-14 03:11:28,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:11:28,048 INFO L225 Difference]: With dead ends: 762 [2024-11-14 03:11:28,048 INFO L226 Difference]: Without dead ends: 762 [2024-11-14 03:11:28,048 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 556 GetRequests, 547 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-11-14 03:11:28,049 INFO L432 NwaCegarLoop]: 371 mSDtfsCounter, 32 mSDsluCounter, 728 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 1099 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:11:28,049 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 1099 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:11:28,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 762 states. [2024-11-14 03:11:28,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 762 to 762. [2024-11-14 03:11:28,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 762 states, 732 states have (on average 1.1871584699453552) internal successors, (869), 745 states have internal predecessors, (869), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (28), 15 states have call predecessors, (28), 23 states have call successors, (28) [2024-11-14 03:11:28,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 762 states to 762 states and 922 transitions. [2024-11-14 03:11:28,068 INFO L78 Accepts]: Start accepts. Automaton has 762 states and 922 transitions. Word has length 186 [2024-11-14 03:11:28,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:11:28,069 INFO L471 AbstractCegarLoop]: Abstraction has 762 states and 922 transitions. [2024-11-14 03:11:28,069 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-14 03:11:28,069 INFO L276 IsEmpty]: Start isEmpty. Operand 762 states and 922 transitions. [2024-11-14 03:11:28,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2024-11-14 03:11:28,071 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:11:28,071 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:11:28,084 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (17)] Ended with exit code 0 [2024-11-14 03:11:28,282 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Ended with exit code 0 [2024-11-14 03:11:28,472 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:11:28,472 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 03:11:28,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:11:28,472 INFO L85 PathProgramCache]: Analyzing trace with hash -101081494, now seen corresponding path program 1 times [2024-11-14 03:11:28,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:11:28,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [183074232] [2024-11-14 03:11:28,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:11:28,474 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 [2024-11-14 03:11:28,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:11:28,476 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/mathsat -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) [2024-11-14 03:11:28,477 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 [2024-11-14 03:11:29,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:11:29,480 INFO L255 TraceCheckSpWp]: Trace formula consists of 898 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 03:11:29,484 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:11:29,574 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-14 03:11:29,574 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:11:29,713 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 1 proven. 19 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-14 03:11:29,713 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:11:29,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [183074232] [2024-11-14 03:11:29,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [183074232] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:11:29,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1203898475] [2024-11-14 03:11:29,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:11:29,714 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 03:11:29,714 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 03:11:29,715 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 03:11:29,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2024-11-14 03:11:31,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:11:31,141 INFO L255 TraceCheckSpWp]: Trace formula consists of 898 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 03:11:31,145 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:11:31,724 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-14 03:11:31,724 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:11:31,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1203898475] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:11:31,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-14 03:11:31,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 5] total 10 [2024-11-14 03:11:31,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968378295] [2024-11-14 03:11:31,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:11:31,727 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:11:31,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:11:31,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:11:31,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-14 03:11:31,728 INFO L87 Difference]: Start difference. First operand 762 states and 922 transitions. Second operand has 4 states, 4 states have (on average 41.25) internal successors, (165), 4 states have internal predecessors, (165), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-14 03:11:34,047 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:11:36,052 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:11:40,494 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:11:42,498 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:11:46,872 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:11:49,757 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:11:49,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:11:49,778 INFO L93 Difference]: Finished difference Result 687 states and 821 transitions. [2024-11-14 03:11:49,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:11:49,778 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.25) internal successors, (165), 4 states have internal predecessors, (165), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 186 [2024-11-14 03:11:49,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:11:49,781 INFO L225 Difference]: With dead ends: 687 [2024-11-14 03:11:49,781 INFO L226 Difference]: Without dead ends: 687 [2024-11-14 03:11:49,781 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 556 GetRequests, 547 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-11-14 03:11:49,781 INFO L432 NwaCegarLoop]: 436 mSDtfsCounter, 479 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 16 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 480 SdHoareTripleChecker+Valid, 665 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.0s IncrementalHoareTripleChecker+Time [2024-11-14 03:11:49,782 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [480 Valid, 665 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 124 Invalid, 5 Unknown, 0 Unchecked, 18.0s Time] [2024-11-14 03:11:49,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 687 states. [2024-11-14 03:11:49,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 687 to 465. [2024-11-14 03:11:49,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 465 states, 444 states have (on average 1.1824324324324325) internal successors, (525), 452 states have internal predecessors, (525), 16 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (17), 10 states have call predecessors, (17), 14 states have call successors, (17) [2024-11-14 03:11:49,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 558 transitions. [2024-11-14 03:11:49,796 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 558 transitions. Word has length 186 [2024-11-14 03:11:49,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:11:49,797 INFO L471 AbstractCegarLoop]: Abstraction has 465 states and 558 transitions. [2024-11-14 03:11:49,797 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.25) internal successors, (165), 4 states have internal predecessors, (165), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-14 03:11:49,797 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 558 transitions. [2024-11-14 03:11:49,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2024-11-14 03:11:49,800 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:11:49,800 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:11:49,816 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/mathsat -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)] Ended with exit code 0 [2024-11-14 03:11:50,012 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (19)] Ended with exit code 0 [2024-11-14 03:11:50,200 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/mathsat -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_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt [2024-11-14 03:11:50,201 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 03:11:50,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:11:50,201 INFO L85 PathProgramCache]: Analyzing trace with hash 1412891218, now seen corresponding path program 1 times [2024-11-14 03:11:50,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:11:50,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1259987819] [2024-11-14 03:11:50,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:11:50,202 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 [2024-11-14 03:11:50,202 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:11:50,204 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/mathsat -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) [2024-11-14 03:11:50,205 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2024-11-14 03:11:51,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:11:51,327 INFO L255 TraceCheckSpWp]: Trace formula consists of 914 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 03:11:51,330 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:11:51,378 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-14 03:11:51,378 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:11:51,505 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 1 proven. 19 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-14 03:11:51,505 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:11:51,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1259987819] [2024-11-14 03:11:51,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1259987819] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:11:51,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1808099560] [2024-11-14 03:11:51,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:11:51,506 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 03:11:51,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 03:11:51,509 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 03:11:51,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process [2024-11-14 03:11:53,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:11:53,132 INFO L255 TraceCheckSpWp]: Trace formula consists of 914 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 03:11:53,135 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:11:53,210 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2024-11-14 03:11:53,210 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:11:53,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1808099560] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:11:53,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-14 03:11:53,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 5] total 10 [2024-11-14 03:11:53,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803293878] [2024-11-14 03:11:53,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:11:53,211 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:11:53,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:11:53,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:11:53,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-14 03:11:53,212 INFO L87 Difference]: Start difference. First operand 465 states and 558 transitions. Second operand has 4 states, 4 states have (on average 43.25) internal successors, (173), 4 states have internal predecessors, (173), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-14 03:11:53,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:11:53,397 INFO L93 Difference]: Finished difference Result 448 states and 530 transitions. [2024-11-14 03:11:53,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:11:53,398 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 43.25) internal successors, (173), 4 states have internal predecessors, (173), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 194 [2024-11-14 03:11:53,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:11:53,400 INFO L225 Difference]: With dead ends: 448 [2024-11-14 03:11:53,401 INFO L226 Difference]: Without dead ends: 448 [2024-11-14 03:11:53,402 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 580 GetRequests, 571 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-11-14 03:11:53,402 INFO L432 NwaCegarLoop]: 359 mSDtfsCounter, 32 mSDsluCounter, 704 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 1063 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:11:53,403 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 1063 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:11:53,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2024-11-14 03:11:53,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 448. [2024-11-14 03:11:53,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 448 states, 427 states have (on average 1.1639344262295082) internal successors, (497), 435 states have internal predecessors, (497), 16 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (17), 10 states have call predecessors, (17), 14 states have call successors, (17) [2024-11-14 03:11:53,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 530 transitions. [2024-11-14 03:11:53,417 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 530 transitions. Word has length 194 [2024-11-14 03:11:53,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:11:53,417 INFO L471 AbstractCegarLoop]: Abstraction has 448 states and 530 transitions. [2024-11-14 03:11:53,418 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.25) internal successors, (173), 4 states have internal predecessors, (173), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-14 03:11:53,418 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 530 transitions. [2024-11-14 03:11:53,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2024-11-14 03:11:53,420 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:11:53,420 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:11:53,438 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (21)] Ended with exit code 0 [2024-11-14 03:11:53,632 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Ended with exit code 0 [2024-11-14 03:11:53,821 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:11:53,821 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 03:11:53,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:11:53,822 INFO L85 PathProgramCache]: Analyzing trace with hash -858139900, now seen corresponding path program 1 times [2024-11-14 03:11:53,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:11:53,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1383666090] [2024-11-14 03:11:53,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:11:53,823 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 [2024-11-14 03:11:53,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:11:53,826 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/mathsat -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) [2024-11-14 03:11:53,828 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2024-11-14 03:11:54,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:11:54,965 INFO L255 TraceCheckSpWp]: Trace formula consists of 900 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 03:11:54,968 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:11:55,029 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-14 03:11:55,029 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:11:55,153 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 1 proven. 19 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-14 03:11:55,153 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:11:55,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1383666090] [2024-11-14 03:11:55,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1383666090] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:11:55,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2007875494] [2024-11-14 03:11:55,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:11:55,153 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 03:11:55,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 03:11:55,155 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 03:11:55,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (23)] Waiting until timeout for monitored process [2024-11-14 03:11:57,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:11:57,137 INFO L255 TraceCheckSpWp]: Trace formula consists of 900 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 03:11:57,139 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:11:57,161 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-14 03:11:57,161 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:11:57,245 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 1 proven. 19 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-14 03:11:57,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2007875494] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:11:57,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [468315682] [2024-11-14 03:11:57,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:11:57,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:11:57,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:11:57,249 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:11:57,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-14 03:11:58,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:11:58,327 INFO L255 TraceCheckSpWp]: Trace formula consists of 900 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 03:11:58,329 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:11:58,729 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-14 03:11:58,729 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:11:59,272 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-14 03:11:59,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [468315682] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:11:59,272 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-14 03:11:59,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 4, 4] total 12 [2024-11-14 03:11:59,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361474338] [2024-11-14 03:11:59,273 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-14 03:11:59,274 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-14 03:11:59,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:11:59,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-14 03:11:59,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-11-14 03:11:59,275 INFO L87 Difference]: Start difference. First operand 448 states and 530 transitions. Second operand has 12 states, 12 states have (on average 35.083333333333336) internal successors, (421), 12 states have internal predecessors, (421), 4 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-14 03:12:00,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:12:00,903 INFO L93 Difference]: Finished difference Result 979 states and 1177 transitions. [2024-11-14 03:12:00,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-14 03:12:00,904 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 35.083333333333336) internal successors, (421), 12 states have internal predecessors, (421), 4 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) Word has length 194 [2024-11-14 03:12:00,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:12:00,907 INFO L225 Difference]: With dead ends: 979 [2024-11-14 03:12:00,907 INFO L226 Difference]: Without dead ends: 979 [2024-11-14 03:12:00,907 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1163 GetRequests, 1149 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2024-11-14 03:12:00,908 INFO L432 NwaCegarLoop]: 549 mSDtfsCounter, 1235 mSDsluCounter, 2683 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1261 SdHoareTripleChecker+Valid, 3232 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-14 03:12:00,908 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1261 Valid, 3232 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-14 03:12:00,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 979 states. [2024-11-14 03:12:00,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 979 to 901. [2024-11-14 03:12:00,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 901 states, 865 states have (on average 1.1653179190751446) internal successors, (1008), 878 states have internal predecessors, (1008), 30 states have call successors, (30), 4 states have call predecessors, (30), 4 states have return successors, (36), 20 states have call predecessors, (36), 28 states have call successors, (36) [2024-11-14 03:12:00,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 901 states to 901 states and 1074 transitions. [2024-11-14 03:12:00,936 INFO L78 Accepts]: Start accepts. Automaton has 901 states and 1074 transitions. Word has length 194 [2024-11-14 03:12:00,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:12:00,937 INFO L471 AbstractCegarLoop]: Abstraction has 901 states and 1074 transitions. [2024-11-14 03:12:00,937 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 35.083333333333336) internal successors, (421), 12 states have internal predecessors, (421), 4 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-14 03:12:00,937 INFO L276 IsEmpty]: Start isEmpty. Operand 901 states and 1074 transitions. [2024-11-14 03:12:00,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 521 [2024-11-14 03:12:00,947 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:12:00,947 INFO L215 NwaCegarLoop]: trace histogram [12, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:12:00,961 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Ended with exit code 0 [2024-11-14 03:12:01,182 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2024-11-14 03:12:01,363 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (23)] Ended with exit code 0 [2024-11-14 03:12:01,548 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt [2024-11-14 03:12:01,548 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 03:12:01,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:12:01,549 INFO L85 PathProgramCache]: Analyzing trace with hash 1544012244, now seen corresponding path program 1 times [2024-11-14 03:12:01,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:12:01,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1604709685] [2024-11-14 03:12:01,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:12:01,550 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 [2024-11-14 03:12:01,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:12:01,552 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/mathsat -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) [2024-11-14 03:12:01,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2024-11-14 03:12:03,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:12:03,880 INFO L255 TraceCheckSpWp]: Trace formula consists of 2407 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 03:12:03,883 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:12:04,020 INFO L134 CoverageAnalysis]: Checked inductivity of 766 backedges. 176 proven. 10 refuted. 0 times theorem prover too weak. 580 trivial. 0 not checked. [2024-11-14 03:12:04,020 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:12:04,298 INFO L134 CoverageAnalysis]: Checked inductivity of 766 backedges. 112 proven. 71 refuted. 0 times theorem prover too weak. 583 trivial. 0 not checked. [2024-11-14 03:12:04,298 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:12:04,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1604709685] [2024-11-14 03:12:04,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1604709685] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:12:04,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [256206218] [2024-11-14 03:12:04,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:12:04,299 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 03:12:04,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 03:12:04,302 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 03:12:04,306 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (26)] Waiting until timeout for monitored process [2024-11-14 03:12:08,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:12:08,413 INFO L255 TraceCheckSpWp]: Trace formula consists of 2407 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 03:12:08,418 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:12:08,459 INFO L134 CoverageAnalysis]: Checked inductivity of 766 backedges. 176 proven. 10 refuted. 0 times theorem prover too weak. 580 trivial. 0 not checked. [2024-11-14 03:12:08,460 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:12:08,596 INFO L134 CoverageAnalysis]: Checked inductivity of 766 backedges. 112 proven. 71 refuted. 0 times theorem prover too weak. 583 trivial. 0 not checked. [2024-11-14 03:12:08,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [256206218] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:12:08,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [376208778] [2024-11-14 03:12:08,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:12:08,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:12:08,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:12:08,600 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:12:08,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-14 03:12:11,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:12:11,163 INFO L255 TraceCheckSpWp]: Trace formula consists of 2407 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 03:12:11,168 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:12:11,273 INFO L134 CoverageAnalysis]: Checked inductivity of 766 backedges. 205 proven. 3 refuted. 0 times theorem prover too weak. 558 trivial. 0 not checked. [2024-11-14 03:12:11,274 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:12:11,629 INFO L134 CoverageAnalysis]: Checked inductivity of 766 backedges. 129 proven. 31 refuted. 0 times theorem prover too weak. 606 trivial. 0 not checked. [2024-11-14 03:12:11,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [376208778] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:12:11,630 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-14 03:12:11,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8, 8, 6, 6] total 20 [2024-11-14 03:12:11,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026623231] [2024-11-14 03:12:11,630 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-14 03:12:11,632 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-14 03:12:11,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:12:11,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-14 03:12:11,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=265, Unknown=0, NotChecked=0, Total=380 [2024-11-14 03:12:11,633 INFO L87 Difference]: Start difference. First operand 901 states and 1074 transitions. Second operand has 20 states, 20 states have (on average 12.15) internal successors, (243), 20 states have internal predecessors, (243), 2 states have call successors, (9), 2 states have call predecessors, (9), 6 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-14 03:12:12,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:12:12,879 INFO L93 Difference]: Finished difference Result 923 states and 1119 transitions. [2024-11-14 03:12:12,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-14 03:12:12,881 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 12.15) internal successors, (243), 20 states have internal predecessors, (243), 2 states have call successors, (9), 2 states have call predecessors, (9), 6 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 520 [2024-11-14 03:12:12,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:12:12,884 INFO L225 Difference]: With dead ends: 923 [2024-11-14 03:12:12,884 INFO L226 Difference]: Without dead ends: 917 [2024-11-14 03:12:12,884 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3133 GetRequests, 3096 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 277 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=403, Invalid=1079, Unknown=0, NotChecked=0, Total=1482 [2024-11-14 03:12:12,885 INFO L432 NwaCegarLoop]: 375 mSDtfsCounter, 23 mSDsluCounter, 2942 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 3317 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-14 03:12:12,885 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 3317 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-14 03:12:12,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 917 states. [2024-11-14 03:12:12,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 917 to 913. [2024-11-14 03:12:12,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 913 states, 877 states have (on average 1.1676168757126568) internal successors, (1024), 890 states have internal predecessors, (1024), 30 states have call successors, (30), 4 states have call predecessors, (30), 4 states have return successors, (36), 20 states have call predecessors, (36), 28 states have call successors, (36) [2024-11-14 03:12:12,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 913 states to 913 states and 1090 transitions. [2024-11-14 03:12:12,906 INFO L78 Accepts]: Start accepts. Automaton has 913 states and 1090 transitions. Word has length 520 [2024-11-14 03:12:12,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:12:12,906 INFO L471 AbstractCegarLoop]: Abstraction has 913 states and 1090 transitions. [2024-11-14 03:12:12,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 12.15) internal successors, (243), 20 states have internal predecessors, (243), 2 states have call successors, (9), 2 states have call predecessors, (9), 6 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-14 03:12:12,907 INFO L276 IsEmpty]: Start isEmpty. Operand 913 states and 1090 transitions. [2024-11-14 03:12:12,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 545 [2024-11-14 03:12:12,916 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:12:12,917 INFO L215 NwaCegarLoop]: trace histogram [36, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:12:12,951 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Ended with exit code 0 [2024-11-14 03:12:13,145 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (26)] Ended with exit code 0 [2024-11-14 03:12:13,365 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2024-11-14 03:12:13,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:12:13,518 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 03:12:13,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:12:13,518 INFO L85 PathProgramCache]: Analyzing trace with hash 997354196, now seen corresponding path program 2 times [2024-11-14 03:12:13,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:12:13,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [440058992] [2024-11-14 03:12:13,520 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-14 03:12:13,520 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:12:13,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:12:13,524 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/mathsat -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) [2024-11-14 03:12:13,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2024-11-14 03:12:16,325 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-14 03:12:16,325 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:12:16,410 INFO L255 TraceCheckSpWp]: Trace formula consists of 2671 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-14 03:12:16,415 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:12:16,693 INFO L134 CoverageAnalysis]: Checked inductivity of 1426 backedges. 440 proven. 55 refuted. 0 times theorem prover too weak. 931 trivial. 0 not checked. [2024-11-14 03:12:16,693 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:12:17,500 INFO L134 CoverageAnalysis]: Checked inductivity of 1426 backedges. 112 proven. 380 refuted. 0 times theorem prover too weak. 934 trivial. 0 not checked. [2024-11-14 03:12:17,500 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:12:17,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [440058992] [2024-11-14 03:12:17,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [440058992] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:12:17,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1463401723] [2024-11-14 03:12:17,501 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-14 03:12:17,501 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 03:12:17,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 03:12:17,503 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 03:12:17,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (29)] Waiting until timeout for monitored process [2024-11-14 03:12:23,384 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-14 03:12:23,384 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:12:23,482 INFO L255 TraceCheckSpWp]: Trace formula consists of 2671 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-14 03:12:23,490 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:12:23,559 INFO L134 CoverageAnalysis]: Checked inductivity of 1426 backedges. 440 proven. 55 refuted. 0 times theorem prover too weak. 931 trivial. 0 not checked. [2024-11-14 03:12:23,559 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:12:23,824 INFO L134 CoverageAnalysis]: Checked inductivity of 1426 backedges. 112 proven. 380 refuted. 0 times theorem prover too weak. 934 trivial. 0 not checked. [2024-11-14 03:12:23,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1463401723] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:12:23,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [380887940] [2024-11-14 03:12:23,824 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-14 03:12:23,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:12:23,824 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:12:23,826 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:12:23,828 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-11-14 03:12:26,419 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-14 03:12:26,419 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:12:26,510 INFO L255 TraceCheckSpWp]: Trace formula consists of 2671 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 03:12:26,515 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:12:28,300 INFO L134 CoverageAnalysis]: Checked inductivity of 1426 backedges. 0 proven. 628 refuted. 0 times theorem prover too weak. 798 trivial. 0 not checked. [2024-11-14 03:12:28,300 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:12:30,542 INFO L134 CoverageAnalysis]: Checked inductivity of 1426 backedges. 0 proven. 628 refuted. 0 times theorem prover too weak. 798 trivial. 0 not checked. [2024-11-14 03:12:30,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [380887940] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:12:30,542 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-14 03:12:30,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14, 14, 7, 7] total 36 [2024-11-14 03:12:30,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428993997] [2024-11-14 03:12:30,543 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-14 03:12:30,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-11-14 03:12:30,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:12:30,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-11-14 03:12:30,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=238, Invalid=1022, Unknown=0, NotChecked=0, Total=1260 [2024-11-14 03:12:30,546 INFO L87 Difference]: Start difference. First operand 913 states and 1090 transitions. Second operand has 36 states, 36 states have (on average 31.02777777777778) internal successors, (1117), 36 states have internal predecessors, (1117), 4 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-14 03:12:45,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:12:45,639 INFO L93 Difference]: Finished difference Result 2228 states and 2677 transitions. [2024-11-14 03:12:45,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2024-11-14 03:12:45,640 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 31.02777777777778) internal successors, (1117), 36 states have internal predecessors, (1117), 4 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) Word has length 544 [2024-11-14 03:12:45,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:12:45,645 INFO L225 Difference]: With dead ends: 2228 [2024-11-14 03:12:45,645 INFO L226 Difference]: Without dead ends: 2224 [2024-11-14 03:12:45,646 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3287 GetRequests, 3228 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 310 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=821, Invalid=2839, Unknown=0, NotChecked=0, Total=3660 [2024-11-14 03:12:45,647 INFO L432 NwaCegarLoop]: 1271 mSDtfsCounter, 4856 mSDsluCounter, 25376 mSDsCounter, 0 mSdLazyCounter, 1657 mSolverCounterSat, 278 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4910 SdHoareTripleChecker+Valid, 26647 SdHoareTripleChecker+Invalid, 1935 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 278 IncrementalHoareTripleChecker+Valid, 1657 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:12:45,647 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4910 Valid, 26647 Invalid, 1935 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [278 Valid, 1657 Invalid, 0 Unknown, 0 Unchecked, 12.2s Time] [2024-11-14 03:12:45,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2224 states. [2024-11-14 03:12:45,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2224 to 2143. [2024-11-14 03:12:45,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2143 states, 2068 states have (on average 1.1552224371373307) internal successors, (2389), 2096 states have internal predecessors, (2389), 69 states have call successors, (69), 4 states have call predecessors, (69), 4 states have return successors, (87), 47 states have call predecessors, (87), 67 states have call successors, (87) [2024-11-14 03:12:45,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2143 states to 2143 states and 2545 transitions. [2024-11-14 03:12:45,704 INFO L78 Accepts]: Start accepts. Automaton has 2143 states and 2545 transitions. Word has length 544 [2024-11-14 03:12:45,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:12:45,705 INFO L471 AbstractCegarLoop]: Abstraction has 2143 states and 2545 transitions. [2024-11-14 03:12:45,705 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 31.02777777777778) internal successors, (1117), 36 states have internal predecessors, (1117), 4 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-14 03:12:45,705 INFO L276 IsEmpty]: Start isEmpty. Operand 2143 states and 2545 transitions. [2024-11-14 03:12:45,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1211 [2024-11-14 03:12:45,720 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:12:45,720 INFO L215 NwaCegarLoop]: trace histogram [66, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 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] [2024-11-14 03:12:45,789 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2024-11-14 03:12:45,959 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (29)] Forceful destruction successful, exit code 0 [2024-11-14 03:12:46,156 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2024-11-14 03:12:46,321 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt,28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:12:46,321 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 03:12:46,322 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:12:46,322 INFO L85 PathProgramCache]: Analyzing trace with hash -2089883184, now seen corresponding path program 3 times [2024-11-14 03:12:46,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:12:46,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [192109072] [2024-11-14 03:12:46,325 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 03:12:46,325 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 [2024-11-14 03:12:46,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:12:46,327 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/mathsat -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) [2024-11-14 03:12:46,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32297c4d-6d4b-413b-a06a-c52523336621/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Waiting until timeout for monitored process