./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test4-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f88c6b0-84ec-484d-a251-d69c065c2611/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f88c6b0-84ec-484d-a251-d69c065c2611/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f88c6b0-84ec-484d-a251-d69c065c2611/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f88c6b0-84ec-484d-a251-d69c065c2611/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test4-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f88c6b0-84ec-484d-a251-d69c065c2611/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f88c6b0-84ec-484d-a251-d69c065c2611/bin/uautomizer-verify-VRDe98Ueme --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ee90c95792b81649f087e170ece38fbab8d5281ca8435570782565b7b775a87f --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 10:49:04,431 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 10:49:04,522 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f88c6b0-84ec-484d-a251-d69c065c2611/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-26 10:49:04,530 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 10:49:04,531 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 10:49:04,565 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 10:49:04,566 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 10:49:04,567 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 10:49:04,568 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 10:49:04,569 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 10:49:04,570 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 10:49:04,571 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 10:49:04,573 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 10:49:04,574 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 10:49:04,574 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 10:49:04,575 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 10:49:04,576 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 10:49:04,577 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 10:49:04,578 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 10:49:04,579 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 10:49:04,580 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-26 10:49:04,581 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-26 10:49:04,582 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-26 10:49:04,582 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 10:49:04,583 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-26 10:49:04,584 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 10:49:04,585 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 10:49:04,586 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 10:49:04,587 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 10:49:04,587 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 10:49:04,588 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 10:49:04,589 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 10:49:04,590 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:49:04,591 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 10:49:04,592 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 10:49:04,592 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 10:49:04,593 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 10:49:04,594 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 10:49:04,595 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 10:49:04,595 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 10:49:04,596 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 10:49:04,597 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f88c6b0-84ec-484d-a251-d69c065c2611/bin/uautomizer-verify-VRDe98Ueme/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f88c6b0-84ec-484d-a251-d69c065c2611/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ee90c95792b81649f087e170ece38fbab8d5281ca8435570782565b7b775a87f [2023-11-26 10:49:04,959 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 10:49:04,993 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 10:49:04,999 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 10:49:05,001 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 10:49:05,001 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 10:49:05,003 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f88c6b0-84ec-484d-a251-d69c065c2611/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test4-1.i [2023-11-26 10:49:08,311 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 10:49:08,728 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 10:49:08,729 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f88c6b0-84ec-484d-a251-d69c065c2611/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test4-1.i [2023-11-26 10:49:08,770 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f88c6b0-84ec-484d-a251-d69c065c2611/bin/uautomizer-verify-VRDe98Ueme/data/dd428f458/cb225e14194f4bb79845de630c13317a/FLAG727b9e245 [2023-11-26 10:49:08,789 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f88c6b0-84ec-484d-a251-d69c065c2611/bin/uautomizer-verify-VRDe98Ueme/data/dd428f458/cb225e14194f4bb79845de630c13317a [2023-11-26 10:49:08,792 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 10:49:08,794 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 10:49:08,796 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 10:49:08,797 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 10:49:08,810 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 10:49:08,811 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:49:08" (1/1) ... [2023-11-26 10:49:08,813 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58edde2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:08, skipping insertion in model container [2023-11-26 10:49:08,813 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:49:08" (1/1) ... [2023-11-26 10:49:08,903 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 10:49:09,712 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:49:09,742 ERROR L324 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2023-11-26 10:49:09,743 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1644ed5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:09, skipping insertion in model container [2023-11-26 10:49:09,743 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 10:49:09,744 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-26 10:49:09,748 INFO L158 Benchmark]: Toolchain (without parser) took 951.16ms. Allocated memory is still 140.5MB. Free memory was 94.4MB in the beginning and 73.9MB in the end (delta: 20.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-26 10:49:09,749 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 104.9MB. Free memory is still 78.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 10:49:09,751 INFO L158 Benchmark]: CACSL2BoogieTranslator took 947.74ms. Allocated memory is still 140.5MB. Free memory was 93.8MB in the beginning and 73.9MB in the end (delta: 20.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-26 10:49:09,753 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 104.9MB. Free memory is still 78.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 947.74ms. Allocated memory is still 140.5MB. Free memory was 93.8MB in the beginning and 73.9MB in the end (delta: 20.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 740]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f88c6b0-84ec-484d-a251-d69c065c2611/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f88c6b0-84ec-484d-a251-d69c065c2611/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f88c6b0-84ec-484d-a251-d69c065c2611/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f88c6b0-84ec-484d-a251-d69c065c2611/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test4-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f88c6b0-84ec-484d-a251-d69c065c2611/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f88c6b0-84ec-484d-a251-d69c065c2611/bin/uautomizer-verify-VRDe98Ueme --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ee90c95792b81649f087e170ece38fbab8d5281ca8435570782565b7b775a87f --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 10:49:12,872 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 10:49:13,056 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f88c6b0-84ec-484d-a251-d69c065c2611/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-11-26 10:49:13,066 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 10:49:13,069 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 10:49:13,128 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 10:49:13,129 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 10:49:13,130 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 10:49:13,132 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 10:49:13,138 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 10:49:13,139 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 10:49:13,140 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 10:49:13,141 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 10:49:13,143 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 10:49:13,144 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 10:49:13,145 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 10:49:13,145 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 10:49:13,146 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 10:49:13,147 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 10:49:13,148 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 10:49:13,149 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-26 10:49:13,150 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-26 10:49:13,150 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-26 10:49:13,151 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 10:49:13,151 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-26 10:49:13,152 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-26 10:49:13,152 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-26 10:49:13,153 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 10:49:13,153 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 10:49:13,154 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 10:49:13,156 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 10:49:13,157 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 10:49:13,157 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 10:49:13,157 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 10:49:13,158 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:49:13,158 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 10:49:13,159 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 10:49:13,160 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-26 10:49:13,160 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-26 10:49:13,160 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 10:49:13,161 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 10:49:13,161 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 10:49:13,161 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 10:49:13,162 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-26 10:49:13,162 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f88c6b0-84ec-484d-a251-d69c065c2611/bin/uautomizer-verify-VRDe98Ueme/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f88c6b0-84ec-484d-a251-d69c065c2611/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ee90c95792b81649f087e170ece38fbab8d5281ca8435570782565b7b775a87f [2023-11-26 10:49:13,707 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 10:49:13,737 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 10:49:13,741 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 10:49:13,743 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 10:49:13,743 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 10:49:13,745 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f88c6b0-84ec-484d-a251-d69c065c2611/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test4-1.i [2023-11-26 10:49:17,507 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 10:49:18,005 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 10:49:18,006 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f88c6b0-84ec-484d-a251-d69c065c2611/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test4-1.i [2023-11-26 10:49:18,032 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f88c6b0-84ec-484d-a251-d69c065c2611/bin/uautomizer-verify-VRDe98Ueme/data/d9ceda1f2/4691da3c40524f8c974e9729bdc769c2/FLAG6ab6f94f9 [2023-11-26 10:49:18,051 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f88c6b0-84ec-484d-a251-d69c065c2611/bin/uautomizer-verify-VRDe98Ueme/data/d9ceda1f2/4691da3c40524f8c974e9729bdc769c2 [2023-11-26 10:49:18,054 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 10:49:18,056 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 10:49:18,058 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 10:49:18,058 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 10:49:18,065 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 10:49:18,066 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:49:18" (1/1) ... [2023-11-26 10:49:18,067 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70f442 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:18, skipping insertion in model container [2023-11-26 10:49:18,067 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:49:18" (1/1) ... [2023-11-26 10:49:18,134 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 10:49:19,112 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:49:19,142 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-26 10:49:19,167 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 10:49:19,325 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:49:19,332 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 10:49:19,536 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:49:19,624 INFO L206 MainTranslator]: Completed translation [2023-11-26 10:49:19,625 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:19 WrapperNode [2023-11-26 10:49:19,625 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 10:49:19,626 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 10:49:19,627 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 10:49:19,627 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 10:49:19,637 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:19" (1/1) ... [2023-11-26 10:49:19,685 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:19" (1/1) ... [2023-11-26 10:49:19,791 INFO L138 Inliner]: procedures = 180, calls = 340, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1135 [2023-11-26 10:49:19,798 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 10:49:19,799 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 10:49:19,800 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 10:49:19,800 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 10:49:19,815 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:19" (1/1) ... [2023-11-26 10:49:19,816 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:19" (1/1) ... [2023-11-26 10:49:19,849 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:19" (1/1) ... [2023-11-26 10:49:20,053 INFO L175 MemorySlicer]: Split 319 memory accesses to 4 slices as follows [2, 5, 5, 307]. 96 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 84 writes are split as follows [0, 1, 1, 82]. [2023-11-26 10:49:20,068 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:19" (1/1) ... [2023-11-26 10:49:20,068 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:19" (1/1) ... [2023-11-26 10:49:20,165 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:19" (1/1) ... [2023-11-26 10:49:20,189 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:19" (1/1) ... [2023-11-26 10:49:20,204 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:19" (1/1) ... [2023-11-26 10:49:20,220 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:19" (1/1) ... [2023-11-26 10:49:20,248 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 10:49:20,249 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 10:49:20,249 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 10:49:20,249 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 10:49:20,250 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:19" (1/1) ... [2023-11-26 10:49:20,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:49:20,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f88c6b0-84ec-484d-a251-d69c065c2611/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:49:20,291 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f88c6b0-84ec-484d-a251-d69c065c2611/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 10:49:20,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f88c6b0-84ec-484d-a251-d69c065c2611/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 10:49:20,335 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2023-11-26 10:49:20,335 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2023-11-26 10:49:20,335 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2023-11-26 10:49:20,335 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2023-11-26 10:49:20,336 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-11-26 10:49:20,336 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-11-26 10:49:20,338 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2023-11-26 10:49:20,340 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2023-11-26 10:49:20,340 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2023-11-26 10:49:20,340 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2023-11-26 10:49:20,340 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2023-11-26 10:49:20,341 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2023-11-26 10:49:20,341 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2023-11-26 10:49:20,341 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2023-11-26 10:49:20,341 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2023-11-26 10:49:20,342 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2023-11-26 10:49:20,343 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-26 10:49:20,344 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 10:49:20,344 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 10:49:20,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-26 10:49:20,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-26 10:49:20,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-26 10:49:20,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-26 10:49:20,346 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-26 10:49:20,347 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-26 10:49:20,347 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-26 10:49:20,348 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-26 10:49:20,348 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 10:49:20,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-11-26 10:49:20,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-11-26 10:49:20,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2023-11-26 10:49:20,350 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2023-11-26 10:49:20,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-26 10:49:20,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-26 10:49:20,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-11-26 10:49:20,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-11-26 10:49:20,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 10:49:20,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 10:49:20,749 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 10:49:20,753 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 10:49:20,759 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-26 10:49:20,843 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-26 10:49:20,885 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-26 10:49:20,922 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-26 10:49:28,117 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 10:49:28,486 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 10:49:28,486 INFO L309 CfgBuilder]: Removed 60 assume(true) statements. [2023-11-26 10:49:28,488 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:49:28 BoogieIcfgContainer [2023-11-26 10:49:28,488 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 10:49:28,491 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 10:49:28,491 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 10:49:28,495 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 10:49:28,495 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 10:49:18" (1/3) ... [2023-11-26 10:49:28,496 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75b50196 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:49:28, skipping insertion in model container [2023-11-26 10:49:28,497 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:19" (2/3) ... [2023-11-26 10:49:28,500 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75b50196 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:49:28, skipping insertion in model container [2023-11-26 10:49:28,501 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:49:28" (3/3) ... [2023-11-26 10:49:28,504 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_JEN_nondet_test4-1.i [2023-11-26 10:49:28,527 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 10:49:28,528 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 648 error locations. [2023-11-26 10:49:28,628 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 10:49:28,638 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@66aca09a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 10:49:28,638 INFO L358 AbstractCegarLoop]: Starting to check reachability of 648 error locations. [2023-11-26 10:49:28,654 INFO L276 IsEmpty]: Start isEmpty. Operand has 1137 states, 487 states have (on average 2.564681724845996) internal successors, (1249), 1129 states have internal predecessors, (1249), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-26 10:49:28,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-26 10:49:28,663 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:49:28,664 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-26 10:49:28,665 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr647ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 645 more)] === [2023-11-26 10:49:28,673 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:49:28,673 INFO L85 PathProgramCache]: Analyzing trace with hash 1851143, now seen corresponding path program 1 times [2023-11-26 10:49:28,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 10:49:28,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [6857660] [2023-11-26 10:49:28,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:49:28,691 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 10:49:28,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f88c6b0-84ec-484d-a251-d69c065c2611/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 10:49:28,695 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f88c6b0-84ec-484d-a251-d69c065c2611/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-26 10:49:28,700 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f88c6b0-84ec-484d-a251-d69c065c2611/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-26 10:49:28,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:28,909 INFO L262 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 10:49:28,916 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:49:28,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:49:28,957 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:49:28,958 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 10:49:28,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [6857660] [2023-11-26 10:49:28,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [6857660] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:49:28,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:49:28,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-26 10:49:28,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882145053] [2023-11-26 10:49:28,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:49:28,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:49:28,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 10:49:29,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:49:29,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:49:29,014 INFO L87 Difference]: Start difference. First operand has 1137 states, 487 states have (on average 2.564681724845996) internal successors, (1249), 1129 states have internal predecessors, (1249), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:32,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:49:32,702 INFO L93 Difference]: Finished difference Result 1139 states and 1197 transitions. [2023-11-26 10:49:32,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:49:32,707 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2023-11-26 10:49:32,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:49:32,736 INFO L225 Difference]: With dead ends: 1139 [2023-11-26 10:49:32,736 INFO L226 Difference]: Without dead ends: 1136 [2023-11-26 10:49:32,739 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:49:32,744 INFO L413 NwaCegarLoop]: 1044 mSDtfsCounter, 24 mSDsluCounter, 531 mSDsCounter, 0 mSdLazyCounter, 767 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 1575 SdHoareTripleChecker+Invalid, 768 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 767 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2023-11-26 10:49:32,746 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 1575 Invalid, 768 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 767 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2023-11-26 10:49:32,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1136 states. [2023-11-26 10:49:32,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1136 to 1127. [2023-11-26 10:49:32,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1127 states, 488 states have (on average 2.4139344262295084) internal successors, (1178), 1119 states have internal predecessors, (1178), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-26 10:49:32,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1127 states to 1127 states and 1190 transitions. [2023-11-26 10:49:32,903 INFO L78 Accepts]: Start accepts. Automaton has 1127 states and 1190 transitions. Word has length 3 [2023-11-26 10:49:32,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:49:32,904 INFO L495 AbstractCegarLoop]: Abstraction has 1127 states and 1190 transitions. [2023-11-26 10:49:32,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:32,905 INFO L276 IsEmpty]: Start isEmpty. Operand 1127 states and 1190 transitions. [2023-11-26 10:49:32,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-26 10:49:32,906 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:49:32,906 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-26 10:49:32,910 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f88c6b0-84ec-484d-a251-d69c065c2611/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-11-26 10:49:33,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f88c6b0-84ec-484d-a251-d69c065c2611/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 10:49:33,110 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 645 more)] === [2023-11-26 10:49:33,111 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:49:33,111 INFO L85 PathProgramCache]: Analyzing trace with hash 1777262702, now seen corresponding path program 1 times [2023-11-26 10:49:33,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 10:49:33,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [353822154] [2023-11-26 10:49:33,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:49:33,113 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 10:49:33,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f88c6b0-84ec-484d-a251-d69c065c2611/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 10:49:33,115 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f88c6b0-84ec-484d-a251-d69c065c2611/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-26 10:49:33,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f88c6b0-84ec-484d-a251-d69c065c2611/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-26 10:49:33,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:33,312 INFO L262 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 10:49:33,320 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:49:33,394 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-26 10:49:33,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:49:33,408 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:49:33,409 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 10:49:33,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [353822154] [2023-11-26 10:49:33,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [353822154] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:49:33,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:49:33,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:49:33,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104744530] [2023-11-26 10:49:33,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:49:33,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:49:33,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 10:49:33,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:49:33,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:49:33,414 INFO L87 Difference]: Start difference. First operand 1127 states and 1190 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:36,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:49:36,976 INFO L93 Difference]: Finished difference Result 1157 states and 1231 transitions. [2023-11-26 10:49:36,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:49:36,977 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 5 [2023-11-26 10:49:36,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:49:36,986 INFO L225 Difference]: With dead ends: 1157 [2023-11-26 10:49:36,987 INFO L226 Difference]: Without dead ends: 1157 [2023-11-26 10:49:36,987 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:49:36,989 INFO L413 NwaCegarLoop]: 443 mSDtfsCounter, 1029 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 712 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1035 SdHoareTripleChecker+Valid, 533 SdHoareTripleChecker+Invalid, 817 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 712 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2023-11-26 10:49:36,990 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1035 Valid, 533 Invalid, 817 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 712 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2023-11-26 10:49:36,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1157 states. [2023-11-26 10:49:37,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1157 to 1100. [2023-11-26 10:49:37,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1100 states, 554 states have (on average 2.1805054151624548) internal successors, (1208), 1092 states have internal predecessors, (1208), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-26 10:49:37,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1100 states to 1100 states and 1220 transitions. [2023-11-26 10:49:37,039 INFO L78 Accepts]: Start accepts. Automaton has 1100 states and 1220 transitions. Word has length 5 [2023-11-26 10:49:37,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:49:37,040 INFO L495 AbstractCegarLoop]: Abstraction has 1100 states and 1220 transitions. [2023-11-26 10:49:37,040 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:37,040 INFO L276 IsEmpty]: Start isEmpty. Operand 1100 states and 1220 transitions. [2023-11-26 10:49:37,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-26 10:49:37,041 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:49:37,041 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-26 10:49:37,053 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f88c6b0-84ec-484d-a251-d69c065c2611/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-26 10:49:37,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f88c6b0-84ec-484d-a251-d69c065c2611/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 10:49:37,245 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 645 more)] === [2023-11-26 10:49:37,245 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:49:37,246 INFO L85 PathProgramCache]: Analyzing trace with hash 1777262703, now seen corresponding path program 1 times [2023-11-26 10:49:37,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 10:49:37,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [787599241] [2023-11-26 10:49:37,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:49:37,247 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 10:49:37,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f88c6b0-84ec-484d-a251-d69c065c2611/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 10:49:37,248 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f88c6b0-84ec-484d-a251-d69c065c2611/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-26 10:49:37,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f88c6b0-84ec-484d-a251-d69c065c2611/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-26 10:49:37,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:37,412 INFO L262 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 10:49:37,416 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:49:37,434 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-26 10:49:37,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:49:37,462 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:49:37,463 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 10:49:37,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [787599241] [2023-11-26 10:49:37,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [787599241] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:49:37,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:49:37,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:49:37,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150840034] [2023-11-26 10:49:37,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:49:37,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:49:37,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 10:49:37,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:49:37,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:49:37,468 INFO L87 Difference]: Start difference. First operand 1100 states and 1220 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:42,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:49:42,077 INFO L93 Difference]: Finished difference Result 1372 states and 1512 transitions. [2023-11-26 10:49:42,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:49:42,077 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 5 [2023-11-26 10:49:42,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:49:42,085 INFO L225 Difference]: With dead ends: 1372 [2023-11-26 10:49:42,086 INFO L226 Difference]: Without dead ends: 1372 [2023-11-26 10:49:42,086 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:49:42,087 INFO L413 NwaCegarLoop]: 771 mSDtfsCounter, 456 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 856 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 456 SdHoareTripleChecker+Valid, 1123 SdHoareTripleChecker+Invalid, 879 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 856 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2023-11-26 10:49:42,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [456 Valid, 1123 Invalid, 879 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 856 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2023-11-26 10:49:42,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1372 states. [2023-11-26 10:49:42,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1372 to 1223. [2023-11-26 10:49:42,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1223 states, 687 states have (on average 2.155749636098981) internal successors, (1481), 1215 states have internal predecessors, (1481), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-26 10:49:42,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1223 states to 1223 states and 1493 transitions. [2023-11-26 10:49:42,143 INFO L78 Accepts]: Start accepts. Automaton has 1223 states and 1493 transitions. Word has length 5 [2023-11-26 10:49:42,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:49:42,143 INFO L495 AbstractCegarLoop]: Abstraction has 1223 states and 1493 transitions. [2023-11-26 10:49:42,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:42,144 INFO L276 IsEmpty]: Start isEmpty. Operand 1223 states and 1493 transitions. [2023-11-26 10:49:42,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-26 10:49:42,144 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:49:42,144 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-26 10:49:42,160 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f88c6b0-84ec-484d-a251-d69c065c2611/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-26 10:49:42,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f88c6b0-84ec-484d-a251-d69c065c2611/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 10:49:42,347 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr640REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 645 more)] === [2023-11-26 10:49:42,348 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:49:42,348 INFO L85 PathProgramCache]: Analyzing trace with hash -737739788, now seen corresponding path program 1 times [2023-11-26 10:49:42,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 10:49:42,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [909668275] [2023-11-26 10:49:42,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:49:42,349 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 10:49:42,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f88c6b0-84ec-484d-a251-d69c065c2611/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 10:49:42,350 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f88c6b0-84ec-484d-a251-d69c065c2611/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-26 10:49:42,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f88c6b0-84ec-484d-a251-d69c065c2611/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-26 10:49:42,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:42,496 INFO L262 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-26 10:49:42,499 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:49:42,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:49:42,562 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:49:42,562 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 10:49:42,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [909668275] [2023-11-26 10:49:42,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [909668275] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:49:42,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:49:42,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 10:49:42,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20191559] [2023-11-26 10:49:42,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:49:42,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 10:49:42,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 10:49:42,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 10:49:42,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 10:49:42,571 INFO L87 Difference]: Start difference. First operand 1223 states and 1493 transitions. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:45,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:49:45,461 INFO L93 Difference]: Finished difference Result 1979 states and 2434 transitions. [2023-11-26 10:49:45,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 10:49:45,464 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-11-26 10:49:45,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:49:45,474 INFO L225 Difference]: With dead ends: 1979 [2023-11-26 10:49:45,474 INFO L226 Difference]: Without dead ends: 1977 [2023-11-26 10:49:45,475 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 10:49:45,476 INFO L413 NwaCegarLoop]: 942 mSDtfsCounter, 699 mSDsluCounter, 1616 mSDsCounter, 0 mSdLazyCounter, 578 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 704 SdHoareTripleChecker+Valid, 2558 SdHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 578 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-11-26 10:49:45,476 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [704 Valid, 2558 Invalid, 581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 578 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-11-26 10:49:45,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1977 states. [2023-11-26 10:49:45,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1977 to 1667. [2023-11-26 10:49:45,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1667 states, 1131 states have (on average 2.1343943412908932) internal successors, (2414), 1656 states have internal predecessors, (2414), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-26 10:49:45,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1667 states to 1667 states and 2432 transitions. [2023-11-26 10:49:45,526 INFO L78 Accepts]: Start accepts. Automaton has 1667 states and 2432 transitions. Word has length 6 [2023-11-26 10:49:45,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:49:45,526 INFO L495 AbstractCegarLoop]: Abstraction has 1667 states and 2432 transitions. [2023-11-26 10:49:45,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:45,527 INFO L276 IsEmpty]: Start isEmpty. Operand 1667 states and 2432 transitions. [2023-11-26 10:49:45,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-26 10:49:45,527 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:49:45,527 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:49:45,535 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f88c6b0-84ec-484d-a251-d69c065c2611/bin/uautomizer-verify-VRDe98Ueme/mathsat -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 [2023-11-26 10:49:45,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f88c6b0-84ec-484d-a251-d69c065c2611/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 10:49:45,730 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 645 more)] === [2023-11-26 10:49:45,730 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:49:45,730 INFO L85 PathProgramCache]: Analyzing trace with hash 624379352, now seen corresponding path program 1 times [2023-11-26 10:49:45,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 10:49:45,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1973014358] [2023-11-26 10:49:45,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:49:45,731 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 10:49:45,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f88c6b0-84ec-484d-a251-d69c065c2611/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 10:49:45,733 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f88c6b0-84ec-484d-a251-d69c065c2611/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-26 10:49:45,736 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f88c6b0-84ec-484d-a251-d69c065c2611/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-11-26 10:49:45,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:45,931 INFO L262 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 10:49:45,934 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:49:45,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:49:45,946 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:49:45,947 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 10:49:45,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1973014358] [2023-11-26 10:49:45,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1973014358] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:49:45,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:49:45,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 10:49:45,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880488874] [2023-11-26 10:49:45,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:49:45,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:49:45,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 10:49:45,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:49:45,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:49:45,950 INFO L87 Difference]: Start difference. First operand 1667 states and 2432 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) [2023-11-26 10:49:47,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:49:47,343 INFO L93 Difference]: Finished difference Result 1613 states and 2352 transitions. [2023-11-26 10:49:47,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:49:47,346 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 [2023-11-26 10:49:47,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:49:47,357 INFO L225 Difference]: With dead ends: 1613 [2023-11-26 10:49:47,357 INFO L226 Difference]: Without dead ends: 1613 [2023-11-26 10:49:47,357 INFO L412 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 [2023-11-26 10:49:47,358 INFO L413 NwaCegarLoop]: 895 mSDtfsCounter, 70 mSDsluCounter, 846 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 1741 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-26 10:49:47,359 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 1741 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-26 10:49:47,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1613 states. [2023-11-26 10:49:47,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1613 to 1613. [2023-11-26 10:49:47,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1613 states, 1101 states have (on average 2.119891008174387) internal successors, (2334), 1602 states have internal predecessors, (2334), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-26 10:49:47,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1613 states to 1613 states and 2352 transitions. [2023-11-26 10:49:47,410 INFO L78 Accepts]: Start accepts. Automaton has 1613 states and 2352 transitions. Word has length 11 [2023-11-26 10:49:47,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:49:47,411 INFO L495 AbstractCegarLoop]: Abstraction has 1613 states and 2352 transitions. [2023-11-26 10:49:47,411 INFO L496 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) [2023-11-26 10:49:47,412 INFO L276 IsEmpty]: Start isEmpty. Operand 1613 states and 2352 transitions. [2023-11-26 10:49:47,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-26 10:49:47,412 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:49:47,412 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:49:47,423 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f88c6b0-84ec-484d-a251-d69c065c2611/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-11-26 10:49:47,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f88c6b0-84ec-484d-a251-d69c065c2611/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 10:49:47,616 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr28REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 645 more)] === [2023-11-26 10:49:47,616 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:49:47,616 INFO L85 PathProgramCache]: Analyzing trace with hash -1266867310, now seen corresponding path program 1 times [2023-11-26 10:49:47,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 10:49:47,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [828940763] [2023-11-26 10:49:47,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:49:47,617 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 10:49:47,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f88c6b0-84ec-484d-a251-d69c065c2611/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 10:49:47,648 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f88c6b0-84ec-484d-a251-d69c065c2611/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-26 10:49:47,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f88c6b0-84ec-484d-a251-d69c065c2611/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-11-26 10:49:47,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:47,866 INFO L262 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 10:49:47,868 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:49:47,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:49:47,892 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:49:47,892 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 10:49:47,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [828940763] [2023-11-26 10:49:47,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [828940763] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:49:47,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:49:47,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 10:49:47,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175348016] [2023-11-26 10:49:47,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:49:47,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 10:49:47,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 10:49:47,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 10:49:47,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 10:49:47,895 INFO L87 Difference]: Start difference. First operand 1613 states and 2352 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:49,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:49:49,557 INFO L93 Difference]: Finished difference Result 1599 states and 2310 transitions. [2023-11-26 10:49:49,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 10:49:49,559 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2023-11-26 10:49:49,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:49:49,567 INFO L225 Difference]: With dead ends: 1599 [2023-11-26 10:49:49,568 INFO L226 Difference]: Without dead ends: 1599 [2023-11-26 10:49:49,568 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 10:49:49,569 INFO L413 NwaCegarLoop]: 864 mSDtfsCounter, 58 mSDsluCounter, 1704 mSDsCounter, 0 mSdLazyCounter, 371 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 2568 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-26 10:49:49,569 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 2568 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 371 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-26 10:49:49,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1599 states. [2023-11-26 10:49:49,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1599 to 1597. [2023-11-26 10:49:49,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1597 states, 1099 states have (on average 2.083712465878071) internal successors, (2290), 1586 states have internal predecessors, (2290), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-26 10:49:49,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1597 states to 1597 states and 2308 transitions. [2023-11-26 10:49:49,612 INFO L78 Accepts]: Start accepts. Automaton has 1597 states and 2308 transitions. Word has length 13 [2023-11-26 10:49:49,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:49:49,612 INFO L495 AbstractCegarLoop]: Abstraction has 1597 states and 2308 transitions. [2023-11-26 10:49:49,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:49,613 INFO L276 IsEmpty]: Start isEmpty. Operand 1597 states and 2308 transitions. [2023-11-26 10:49:49,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-26 10:49:49,614 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:49:49,614 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:49:49,618 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f88c6b0-84ec-484d-a251-d69c065c2611/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-11-26 10:49:49,817 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f88c6b0-84ec-484d-a251-d69c065c2611/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 10:49:49,818 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr42REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 645 more)] === [2023-11-26 10:49:49,818 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:49:49,818 INFO L85 PathProgramCache]: Analyzing trace with hash -1039830624, now seen corresponding path program 1 times [2023-11-26 10:49:49,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 10:49:49,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [445424844] [2023-11-26 10:49:49,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:49:49,819 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 10:49:49,819 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f88c6b0-84ec-484d-a251-d69c065c2611/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 10:49:49,820 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f88c6b0-84ec-484d-a251-d69c065c2611/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-26 10:49:49,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f88c6b0-84ec-484d-a251-d69c065c2611/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-11-26 10:49:50,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:50,014 INFO L262 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 10:49:50,018 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:49:50,024 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-26 10:49:50,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:49:50,146 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:49:50,146 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 10:49:50,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [445424844] [2023-11-26 10:49:50,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [445424844] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:49:50,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:49:50,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 10:49:50,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27377210] [2023-11-26 10:49:50,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:49:50,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 10:49:50,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 10:49:50,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 10:49:50,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 10:49:50,152 INFO L87 Difference]: Start difference. First operand 1597 states and 2308 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:54,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:49:54,285 INFO L93 Difference]: Finished difference Result 1650 states and 2311 transitions. [2023-11-26 10:49:54,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 10:49:54,286 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2023-11-26 10:49:54,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:49:54,297 INFO L225 Difference]: With dead ends: 1650 [2023-11-26 10:49:54,298 INFO L226 Difference]: Without dead ends: 1650 [2023-11-26 10:49:54,298 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 10:49:54,299 INFO L413 NwaCegarLoop]: 407 mSDtfsCounter, 964 mSDsluCounter, 446 mSDsCounter, 0 mSdLazyCounter, 1265 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 970 SdHoareTripleChecker+Valid, 853 SdHoareTripleChecker+Invalid, 1280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-11-26 10:49:54,300 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [970 Valid, 853 Invalid, 1280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1265 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2023-11-26 10:49:54,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1650 states. [2023-11-26 10:49:54,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1650 to 1593. [2023-11-26 10:49:54,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1593 states, 1099 states have (on average 2.0764331210191083) internal successors, (2282), 1582 states have internal predecessors, (2282), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-26 10:49:54,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1593 states to 1593 states and 2300 transitions. [2023-11-26 10:49:54,350 INFO L78 Accepts]: Start accepts. Automaton has 1593 states and 2300 transitions. Word has length 27 [2023-11-26 10:49:54,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:49:54,351 INFO L495 AbstractCegarLoop]: Abstraction has 1593 states and 2300 transitions. [2023-11-26 10:49:54,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:54,352 INFO L276 IsEmpty]: Start isEmpty. Operand 1593 states and 2300 transitions. [2023-11-26 10:49:54,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-26 10:49:54,353 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:49:54,353 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:49:54,367 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f88c6b0-84ec-484d-a251-d69c065c2611/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2023-11-26 10:49:54,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f88c6b0-84ec-484d-a251-d69c065c2611/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 10:49:54,558 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr43REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 645 more)] === [2023-11-26 10:49:54,559 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:49:54,559 INFO L85 PathProgramCache]: Analyzing trace with hash -1039830623, now seen corresponding path program 1 times [2023-11-26 10:49:54,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 10:49:54,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [900389479] [2023-11-26 10:49:54,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:49:54,560 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 10:49:54,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f88c6b0-84ec-484d-a251-d69c065c2611/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 10:49:54,561 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f88c6b0-84ec-484d-a251-d69c065c2611/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-26 10:49:54,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f88c6b0-84ec-484d-a251-d69c065c2611/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-11-26 10:49:54,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:54,797 INFO L262 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-26 10:49:54,801 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:49:54,817 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-26 10:49:55,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:49:55,179 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:49:55,179 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 10:49:55,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [900389479] [2023-11-26 10:49:55,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [900389479] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:49:55,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:49:55,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 10:49:55,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527622089] [2023-11-26 10:49:55,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:49:55,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 10:49:55,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 10:49:55,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 10:49:55,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 10:49:55,183 INFO L87 Difference]: Start difference. First operand 1593 states and 2300 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)