./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test2-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/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_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test2-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/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_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/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 e277983cfe4b30513b023d34f2b840358d8a25fd7a5c39241cadd105379bfb92 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:59:47,507 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:59:47,573 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-26 11:59:47,579 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:59:47,580 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:59:47,605 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:59:47,606 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:59:47,607 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:59:47,608 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 11:59:47,609 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 11:59:47,609 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:59:47,610 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:59:47,611 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:59:47,612 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:59:47,612 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:59:47,613 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:59:47,614 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 11:59:47,615 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 11:59:47,615 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 11:59:47,616 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:59:47,617 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-26 11:59:47,617 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-26 11:59:47,618 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-26 11:59:47,619 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:59:47,619 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-26 11:59:47,620 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 11:59:47,620 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 11:59:47,621 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:59:47,622 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:59:47,622 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:59:47,623 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 11:59:47,623 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:59:47,623 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:59:47,624 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:59:47,625 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:59:47,625 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 11:59:47,626 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 11:59:47,626 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:59:47,626 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:59:47,627 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:59:47,627 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:59:47,628 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_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e277983cfe4b30513b023d34f2b840358d8a25fd7a5c39241cadd105379bfb92 [2023-11-26 11:59:47,861 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:59:47,890 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:59:47,893 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:59:47,896 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:59:47,896 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:59:47,898 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test2-1.i [2023-11-26 11:59:51,186 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:59:51,525 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:59:51,526 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test2-1.i [2023-11-26 11:59:51,549 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/bin/uautomizer-verify-VRDe98Ueme/data/4e12ea95d/f23700dc7fdf482792fab7d529be7d83/FLAGb1db4c72b [2023-11-26 11:59:51,562 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/bin/uautomizer-verify-VRDe98Ueme/data/4e12ea95d/f23700dc7fdf482792fab7d529be7d83 [2023-11-26 11:59:51,565 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:59:51,567 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:59:51,568 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:59:51,568 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:59:51,574 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:59:51,574 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:59:51" (1/1) ... [2023-11-26 11:59:51,576 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16402da9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:59:51, skipping insertion in model container [2023-11-26 11:59:51,576 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:59:51" (1/1) ... [2023-11-26 11:59:51,667 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:59:52,404 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:59:52,416 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 11:59:52,417 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@37934218 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:59:52, skipping insertion in model container [2023-11-26 11:59:52,417 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:59:52,418 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-26 11:59:52,420 INFO L158 Benchmark]: Toolchain (without parser) took 852.30ms. Allocated memory is still 127.9MB. Free memory was 88.3MB in the beginning and 69.0MB in the end (delta: 19.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-26 11:59:52,421 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 100.7MB. Free memory was 51.6MB in the beginning and 51.4MB in the end (delta: 142.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 11:59:52,422 INFO L158 Benchmark]: CACSL2BoogieTranslator took 849.81ms. Allocated memory is still 127.9MB. Free memory was 88.0MB in the beginning and 69.0MB in the end (delta: 19.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-26 11:59:52,424 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 100.7MB. Free memory was 51.6MB in the beginning and 51.4MB in the end (delta: 142.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 849.81ms. Allocated memory is still 127.9MB. Free memory was 88.0MB in the beginning and 69.0MB in the end (delta: 19.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 817]: 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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/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_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test2-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/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_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/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 e277983cfe4b30513b023d34f2b840358d8a25fd7a5c39241cadd105379bfb92 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:59:54,933 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:59:55,060 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-11-26 11:59:55,071 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:59:55,072 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:59:55,123 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:59:55,124 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:59:55,125 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:59:55,126 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 11:59:55,131 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 11:59:55,131 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:59:55,132 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:59:55,132 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:59:55,134 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:59:55,135 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:59:55,135 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:59:55,136 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 11:59:55,136 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 11:59:55,137 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 11:59:55,137 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:59:55,137 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-26 11:59:55,138 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-26 11:59:55,138 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-26 11:59:55,139 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:59:55,139 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-26 11:59:55,140 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-26 11:59:55,140 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-26 11:59:55,140 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 11:59:55,141 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 11:59:55,141 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:59:55,143 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:59:55,144 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:59:55,144 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 11:59:55,144 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:59:55,145 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:59:55,145 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:59:55,146 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:59:55,146 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-26 11:59:55,147 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-26 11:59:55,147 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:59:55,147 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:59:55,147 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:59:55,148 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:59:55,148 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-26 11:59:55,149 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_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e277983cfe4b30513b023d34f2b840358d8a25fd7a5c39241cadd105379bfb92 [2023-11-26 11:59:55,619 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:59:55,647 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:59:55,649 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:59:55,650 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:59:55,651 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:59:55,652 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test2-1.i [2023-11-26 11:59:58,900 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:59:59,375 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:59:59,376 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test2-1.i [2023-11-26 11:59:59,408 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/bin/uautomizer-verify-VRDe98Ueme/data/18ccb7f49/93d03209856943c4b5db4a36bae2f81c/FLAG73e5f753f [2023-11-26 11:59:59,434 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/bin/uautomizer-verify-VRDe98Ueme/data/18ccb7f49/93d03209856943c4b5db4a36bae2f81c [2023-11-26 11:59:59,440 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:59:59,443 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:59:59,446 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:59:59,447 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:59:59,452 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:59:59,453 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:59:59" (1/1) ... [2023-11-26 11:59:59,455 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ea8b04f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:59:59, skipping insertion in model container [2023-11-26 11:59:59,458 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:59:59" (1/1) ... [2023-11-26 11:59:59,536 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 12:00:00,358 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:00:00,388 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-26 12:00:00,405 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 12:00:00,516 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:00:00,521 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 12:00:00,608 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:00:00,673 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 12:00:00,682 INFO L206 MainTranslator]: Completed translation [2023-11-26 12:00:00,682 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:00 WrapperNode [2023-11-26 12:00:00,683 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 12:00:00,684 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 12:00:00,684 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 12:00:00,684 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 12:00:00,693 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:00" (1/1) ... [2023-11-26 12:00:00,736 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:00" (1/1) ... [2023-11-26 12:00:00,827 INFO L138 Inliner]: procedures = 210, calls = 230, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 873 [2023-11-26 12:00:00,844 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 12:00:00,845 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 12:00:00,846 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 12:00:00,846 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 12:00:00,858 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:00" (1/1) ... [2023-11-26 12:00:00,858 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:00" (1/1) ... [2023-11-26 12:00:00,883 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:00" (1/1) ... [2023-11-26 12:00:00,989 INFO L175 MemorySlicer]: Split 211 memory accesses to 4 slices as follows [2, 5, 34, 170]. 81 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 47 writes are split as follows [0, 1, 4, 42]. [2023-11-26 12:00:01,004 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:00" (1/1) ... [2023-11-26 12:00:01,005 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:00" (1/1) ... [2023-11-26 12:00:01,069 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:00" (1/1) ... [2023-11-26 12:00:01,086 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:00" (1/1) ... [2023-11-26 12:00:01,097 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:00" (1/1) ... [2023-11-26 12:00:01,104 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:00" (1/1) ... [2023-11-26 12:00:01,140 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 12:00:01,141 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 12:00:01,141 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 12:00:01,141 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 12:00:01,142 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:00" (1/1) ... [2023-11-26 12:00:01,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:00:01,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:01,184 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:01,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 12:00:01,231 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2023-11-26 12:00:01,232 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2023-11-26 12:00:01,232 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2023-11-26 12:00:01,232 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2023-11-26 12:00:01,233 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-11-26 12:00:01,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-11-26 12:00:01,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2023-11-26 12:00:01,236 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2023-11-26 12:00:01,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2023-11-26 12:00:01,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2023-11-26 12:00:01,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2023-11-26 12:00:01,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2023-11-26 12:00:01,237 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2023-11-26 12:00:01,237 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2023-11-26 12:00:01,237 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2023-11-26 12:00:01,238 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2023-11-26 12:00:01,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 12:00:01,239 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-26 12:00:01,239 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-26 12:00:01,239 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-26 12:00:01,240 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-26 12:00:01,241 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-26 12:00:01,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-11-26 12:00:01,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-11-26 12:00:01,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2023-11-26 12:00:01,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2023-11-26 12:00:01,243 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 12:00:01,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-26 12:00:01,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-26 12:00:01,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-11-26 12:00:01,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-11-26 12:00:01,243 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-26 12:00:01,244 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 12:00:01,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-26 12:00:01,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-26 12:00:01,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-26 12:00:01,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-26 12:00:01,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 12:00:01,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 12:00:01,524 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 12:00:01,526 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 12:00:01,531 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-26 12:00:01,602 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-26 12:00:01,624 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-26 12:00:01,645 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-26 12:00:06,324 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 12:00:06,513 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 12:00:06,513 INFO L309 CfgBuilder]: Removed 54 assume(true) statements. [2023-11-26 12:00:06,514 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:00:06 BoogieIcfgContainer [2023-11-26 12:00:06,514 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 12:00:06,541 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 12:00:06,541 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 12:00:06,544 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 12:00:06,545 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:59:59" (1/3) ... [2023-11-26 12:00:06,546 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5260a439 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:00:06, skipping insertion in model container [2023-11-26 12:00:06,547 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:00" (2/3) ... [2023-11-26 12:00:06,548 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5260a439 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:00:06, skipping insertion in model container [2023-11-26 12:00:06,548 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:00:06" (3/3) ... [2023-11-26 12:00:06,550 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_OAT_nondet_test2-1.i [2023-11-26 12:00:06,570 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 12:00:06,570 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 426 error locations. [2023-11-26 12:00:06,647 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 12:00:06,654 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;@6236f52f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 12:00:06,654 INFO L358 AbstractCegarLoop]: Starting to check reachability of 426 error locations. [2023-11-26 12:00:06,667 INFO L276 IsEmpty]: Start isEmpty. Operand has 780 states, 352 states have (on average 2.502840909090909) internal successors, (881), 775 states have internal predecessors, (881), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-26 12:00:06,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-26 12:00:06,674 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:00:06,675 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-26 12:00:06,675 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr425ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 423 more)] === [2023-11-26 12:00:06,681 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:06,681 INFO L85 PathProgramCache]: Analyzing trace with hash 1446101, now seen corresponding path program 1 times [2023-11-26 12:00:06,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 12:00:06,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [478682977] [2023-11-26 12:00:06,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:06,693 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 12:00:06,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 12:00:06,696 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/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 12:00:06,709 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/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 12:00:06,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:06,856 INFO L262 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-26 12:00:06,862 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:00:07,001 WARN L876 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#i~0#1.base_53| (_ BitVec 32))) (and (= (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_53| (_ bv0 1)) |c_#valid|) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_53|)))) is different from true [2023-11-26 12:00:07,017 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 12:00:07,017 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:00:07,018 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 12:00:07,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [478682977] [2023-11-26 12:00:07,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [478682977] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:07,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:07,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:00:07,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640162479] [2023-11-26 12:00:07,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:07,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 12:00:07,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 12:00:07,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 12:00:07,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2023-11-26 12:00:07,069 INFO L87 Difference]: Start difference. First operand has 780 states, 352 states have (on average 2.502840909090909) internal successors, (881), 775 states have internal predecessors, (881), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 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 12:00:09,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:00:09,837 INFO L93 Difference]: Finished difference Result 967 states and 1035 transitions. [2023-11-26 12:00:09,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 12:00:09,845 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 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 12:00:09,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:00:09,871 INFO L225 Difference]: With dead ends: 967 [2023-11-26 12:00:09,872 INFO L226 Difference]: Without dead ends: 965 [2023-11-26 12:00:09,873 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2023-11-26 12:00:09,877 INFO L413 NwaCegarLoop]: 648 mSDtfsCounter, 219 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 603 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 1026 SdHoareTripleChecker+Invalid, 1639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 603 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1036 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-11-26 12:00:09,878 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 1026 Invalid, 1639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 603 Invalid, 0 Unknown, 1036 Unchecked, 2.7s Time] [2023-11-26 12:00:09,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 965 states. [2023-11-26 12:00:09,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 965 to 769. [2023-11-26 12:00:09,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 769 states, 347 states have (on average 2.3314121037463975) internal successors, (809), 764 states have internal predecessors, (809), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-26 12:00:09,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 769 states to 769 states and 815 transitions. [2023-11-26 12:00:09,969 INFO L78 Accepts]: Start accepts. Automaton has 769 states and 815 transitions. Word has length 3 [2023-11-26 12:00:09,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:00:09,969 INFO L495 AbstractCegarLoop]: Abstraction has 769 states and 815 transitions. [2023-11-26 12:00:09,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 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 12:00:09,970 INFO L276 IsEmpty]: Start isEmpty. Operand 769 states and 815 transitions. [2023-11-26 12:00:09,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-26 12:00:09,970 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:00:09,971 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-26 12:00:09,982 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/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)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:10,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/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 12:00:10,174 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 423 more)] === [2023-11-26 12:00:10,174 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:10,174 INFO L85 PathProgramCache]: Analyzing trace with hash 1444800, now seen corresponding path program 1 times [2023-11-26 12:00:10,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 12:00:10,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [985014937] [2023-11-26 12:00:10,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:10,175 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 12:00:10,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 12:00:10,177 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/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 12:00:10,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/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 12:00:10,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:10,338 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 12:00:10,341 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:00:10,360 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 12:00:10,371 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 12:00:10,372 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:00:10,372 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 12:00:10,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [985014937] [2023-11-26 12:00:10,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [985014937] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:10,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:10,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-26 12:00:10,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490592819] [2023-11-26 12:00:10,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:10,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:00:10,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 12:00:10,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:00:10,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:00:10,376 INFO L87 Difference]: Start difference. First operand 769 states and 815 transitions. 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 12:00:12,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:00:12,211 INFO L93 Difference]: Finished difference Result 768 states and 814 transitions. [2023-11-26 12:00:12,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:00:12,213 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 12:00:12,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:00:12,219 INFO L225 Difference]: With dead ends: 768 [2023-11-26 12:00:12,219 INFO L226 Difference]: Without dead ends: 768 [2023-11-26 12:00:12,219 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 12:00:12,220 INFO L413 NwaCegarLoop]: 417 mSDtfsCounter, 716 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 719 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-26 12:00:12,221 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [719 Valid, 451 Invalid, 457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 441 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-26 12:00:12,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 768 states. [2023-11-26 12:00:12,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 768 to 767. [2023-11-26 12:00:12,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 767 states, 355 states have (on average 2.276056338028169) internal successors, (808), 762 states have internal predecessors, (808), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-26 12:00:12,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 767 states to 767 states and 814 transitions. [2023-11-26 12:00:12,278 INFO L78 Accepts]: Start accepts. Automaton has 767 states and 814 transitions. Word has length 3 [2023-11-26 12:00:12,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:00:12,279 INFO L495 AbstractCegarLoop]: Abstraction has 767 states and 814 transitions. [2023-11-26 12:00:12,279 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 12:00:12,279 INFO L276 IsEmpty]: Start isEmpty. Operand 767 states and 814 transitions. [2023-11-26 12:00:12,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-26 12:00:12,281 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:00:12,282 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-26 12:00:12,284 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/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 12:00:12,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/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 12:00:12,483 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 423 more)] === [2023-11-26 12:00:12,484 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:12,484 INFO L85 PathProgramCache]: Analyzing trace with hash 1444801, now seen corresponding path program 1 times [2023-11-26 12:00:12,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 12:00:12,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [125957375] [2023-11-26 12:00:12,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:12,485 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 12:00:12,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 12:00:12,486 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/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 12:00:12,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/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 12:00:12,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:12,607 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 12:00:12,609 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:00:12,622 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 12:00:12,643 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 12:00:12,643 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:00:12,643 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 12:00:12,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [125957375] [2023-11-26 12:00:12,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [125957375] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:12,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:12,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-26 12:00:12,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060571865] [2023-11-26 12:00:12,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:12,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:00:12,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 12:00:12,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:00:12,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:00:12,649 INFO L87 Difference]: Start difference. First operand 767 states and 814 transitions. 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 12:00:15,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:00:15,858 INFO L93 Difference]: Finished difference Result 952 states and 1020 transitions. [2023-11-26 12:00:15,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:00:15,858 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 12:00:15,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:00:15,864 INFO L225 Difference]: With dead ends: 952 [2023-11-26 12:00:15,864 INFO L226 Difference]: Without dead ends: 952 [2023-11-26 12:00:15,865 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 12:00:15,866 INFO L413 NwaCegarLoop]: 649 mSDtfsCounter, 206 mSDsluCounter, 382 mSDsCounter, 0 mSdLazyCounter, 574 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 1031 SdHoareTripleChecker+Invalid, 579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-11-26 12:00:15,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 1031 Invalid, 579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 574 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-11-26 12:00:15,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 952 states. [2023-11-26 12:00:15,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 952 to 868. [2023-11-26 12:00:15,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 868 states, 457 states have (on average 2.212253829321663) internal successors, (1011), 863 states have internal predecessors, (1011), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-26 12:00:15,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 868 states to 868 states and 1017 transitions. [2023-11-26 12:00:15,893 INFO L78 Accepts]: Start accepts. Automaton has 868 states and 1017 transitions. Word has length 3 [2023-11-26 12:00:15,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:00:15,893 INFO L495 AbstractCegarLoop]: Abstraction has 868 states and 1017 transitions. [2023-11-26 12:00:15,893 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 12:00:15,894 INFO L276 IsEmpty]: Start isEmpty. Operand 868 states and 1017 transitions. [2023-11-26 12:00:15,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-26 12:00:15,894 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:00:15,894 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:15,905 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/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 12:00:16,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/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 12:00:16,097 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 423 more)] === [2023-11-26 12:00:16,097 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:16,097 INFO L85 PathProgramCache]: Analyzing trace with hash -1431065462, now seen corresponding path program 1 times [2023-11-26 12:00:16,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 12:00:16,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1659919224] [2023-11-26 12:00:16,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:16,098 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 12:00:16,099 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 12:00:16,100 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/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 12:00:16,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/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 12:00:16,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:16,278 INFO L262 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-26 12:00:16,281 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:00:16,299 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 12:00:16,312 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 12:00:16,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-26 12:00:16,434 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2023-11-26 12:00:16,457 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-26 12:00:16,458 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2023-11-26 12:00:16,480 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 12:00:16,481 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:00:16,481 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 12:00:16,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1659919224] [2023-11-26 12:00:16,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1659919224] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:16,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:16,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:00:16,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158512163] [2023-11-26 12:00:16,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:16,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 12:00:16,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 12:00:16,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 12:00:16,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-26 12:00:16,484 INFO L87 Difference]: Start difference. First operand 868 states and 1017 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:19,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:00:19,264 INFO L93 Difference]: Finished difference Result 858 states and 1006 transitions. [2023-11-26 12:00:19,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 12:00:19,265 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-26 12:00:19,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:00:19,270 INFO L225 Difference]: With dead ends: 858 [2023-11-26 12:00:19,270 INFO L226 Difference]: Without dead ends: 858 [2023-11-26 12:00:19,270 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-26 12:00:19,271 INFO L413 NwaCegarLoop]: 205 mSDtfsCounter, 1484 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 661 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1487 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 684 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 661 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-11-26 12:00:19,272 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1487 Valid, 219 Invalid, 684 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 661 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-11-26 12:00:19,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 858 states. [2023-11-26 12:00:19,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 858 to 756. [2023-11-26 12:00:19,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 756 states, 355 states have (on average 2.2422535211267607) internal successors, (796), 751 states have internal predecessors, (796), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-26 12:00:19,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 756 states to 756 states and 802 transitions. [2023-11-26 12:00:19,293 INFO L78 Accepts]: Start accepts. Automaton has 756 states and 802 transitions. Word has length 7 [2023-11-26 12:00:19,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:00:19,293 INFO L495 AbstractCegarLoop]: Abstraction has 756 states and 802 transitions. [2023-11-26 12:00:19,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:19,294 INFO L276 IsEmpty]: Start isEmpty. Operand 756 states and 802 transitions. [2023-11-26 12:00:19,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-26 12:00:19,294 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:00:19,294 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:19,306 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/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)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:19,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/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 12:00:19,498 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 423 more)] === [2023-11-26 12:00:19,498 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:19,498 INFO L85 PathProgramCache]: Analyzing trace with hash -1413356356, now seen corresponding path program 1 times [2023-11-26 12:00:19,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 12:00:19,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [681437943] [2023-11-26 12:00:19,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:19,499 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 12:00:19,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 12:00:19,500 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/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 12:00:19,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/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 12:00:19,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:19,639 INFO L262 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 12:00:19,641 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:00:19,646 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 12:00:19,659 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 12:00:19,660 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:00:19,660 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 12:00:19,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [681437943] [2023-11-26 12:00:19,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [681437943] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:19,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:19,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:00:19,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910021771] [2023-11-26 12:00:19,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:19,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:00:19,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 12:00:19,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:00:19,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:00:19,662 INFO L87 Difference]: Start difference. First operand 756 states and 802 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 12:00:21,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:00:21,774 INFO L93 Difference]: Finished difference Result 896 states and 963 transitions. [2023-11-26 12:00:21,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:00:21,776 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 8 [2023-11-26 12:00:21,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:00:21,780 INFO L225 Difference]: With dead ends: 896 [2023-11-26 12:00:21,781 INFO L226 Difference]: Without dead ends: 896 [2023-11-26 12:00:21,781 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 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 12:00:21,782 INFO L413 NwaCegarLoop]: 521 mSDtfsCounter, 719 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 535 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 722 SdHoareTripleChecker+Valid, 651 SdHoareTripleChecker+Invalid, 586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-26 12:00:21,782 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [722 Valid, 651 Invalid, 586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 535 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-26 12:00:21,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 896 states. [2023-11-26 12:00:21,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 896 to 709. [2023-11-26 12:00:21,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 709 states, 355 states have (on average 2.1098591549295773) internal successors, (749), 704 states have internal predecessors, (749), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-26 12:00:21,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 709 states to 709 states and 755 transitions. [2023-11-26 12:00:21,802 INFO L78 Accepts]: Start accepts. Automaton has 709 states and 755 transitions. Word has length 8 [2023-11-26 12:00:21,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:00:21,802 INFO L495 AbstractCegarLoop]: Abstraction has 709 states and 755 transitions. [2023-11-26 12:00:21,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 12:00:21,802 INFO L276 IsEmpty]: Start isEmpty. Operand 709 states and 755 transitions. [2023-11-26 12:00:21,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-26 12:00:21,803 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:00:21,803 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:21,813 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/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)] Ended with exit code 0 [2023-11-26 12:00:22,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/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 12:00:22,005 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 423 more)] === [2023-11-26 12:00:22,006 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:22,006 INFO L85 PathProgramCache]: Analyzing trace with hash -1413356355, now seen corresponding path program 1 times [2023-11-26 12:00:22,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 12:00:22,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [613874271] [2023-11-26 12:00:22,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:22,007 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 12:00:22,007 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 12:00:22,008 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/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 12:00:22,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/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 12:00:22,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:22,155 INFO L262 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 12:00:22,158 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:00:22,170 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 12:00:22,199 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 12:00:22,199 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:00:22,199 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 12:00:22,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [613874271] [2023-11-26 12:00:22,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [613874271] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:22,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:22,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:00:22,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80670347] [2023-11-26 12:00:22,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:22,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:00:22,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 12:00:22,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:00:22,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:00:22,201 INFO L87 Difference]: Start difference. First operand 709 states and 755 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 12:00:25,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:00:25,317 INFO L93 Difference]: Finished difference Result 956 states and 1025 transitions. [2023-11-26 12:00:25,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:00:25,319 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 8 [2023-11-26 12:00:25,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:00:25,324 INFO L225 Difference]: With dead ends: 956 [2023-11-26 12:00:25,324 INFO L226 Difference]: Without dead ends: 956 [2023-11-26 12:00:25,324 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 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 12:00:25,325 INFO L413 NwaCegarLoop]: 682 mSDtfsCounter, 439 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 583 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 439 SdHoareTripleChecker+Valid, 935 SdHoareTripleChecker+Invalid, 595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-11-26 12:00:25,326 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [439 Valid, 935 Invalid, 595 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 583 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-11-26 12:00:25,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 956 states. [2023-11-26 12:00:25,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 956 to 722. [2023-11-26 12:00:25,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 722 states, 378 states have (on average 2.105820105820106) internal successors, (796), 717 states have internal predecessors, (796), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-26 12:00:25,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 722 states to 722 states and 802 transitions. [2023-11-26 12:00:25,345 INFO L78 Accepts]: Start accepts. Automaton has 722 states and 802 transitions. Word has length 8 [2023-11-26 12:00:25,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:00:25,346 INFO L495 AbstractCegarLoop]: Abstraction has 722 states and 802 transitions. [2023-11-26 12:00:25,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 12:00:25,346 INFO L276 IsEmpty]: Start isEmpty. Operand 722 states and 802 transitions. [2023-11-26 12:00:25,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-26 12:00:25,347 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:00:25,347 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:25,358 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/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 12:00:25,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/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 12:00:25,549 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr425ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 423 more)] === [2023-11-26 12:00:25,550 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:25,550 INFO L85 PathProgramCache]: Analyzing trace with hash -218310581, now seen corresponding path program 1 times [2023-11-26 12:00:25,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 12:00:25,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1452082714] [2023-11-26 12:00:25,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:25,551 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 12:00:25,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 12:00:25,553 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/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 12:00:25,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/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 12:00:25,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:25,784 INFO L262 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-26 12:00:25,786 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:00:25,894 WARN L876 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#i~0#1.base_54| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_54|)) (= (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_54| (_ bv0 1)) |c_#valid|))) is different from true [2023-11-26 12:00:25,895 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 12:00:25,895 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:00:25,895 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 12:00:25,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1452082714] [2023-11-26 12:00:25,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1452082714] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:25,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:25,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:00:25,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471211838] [2023-11-26 12:00:25,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:25,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 12:00:25,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 12:00:25,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 12:00:25,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2023-11-26 12:00:25,902 INFO L87 Difference]: Start difference. First operand 722 states and 802 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:27,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:00:27,985 INFO L93 Difference]: Finished difference Result 909 states and 1009 transitions. [2023-11-26 12:00:27,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 12:00:27,985 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-11-26 12:00:27,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:00:27,990 INFO L225 Difference]: With dead ends: 909 [2023-11-26 12:00:27,991 INFO L226 Difference]: Without dead ends: 907 [2023-11-26 12:00:27,991 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2023-11-26 12:00:27,992 INFO L413 NwaCegarLoop]: 582 mSDtfsCounter, 200 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 521 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 950 SdHoareTripleChecker+Invalid, 1464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 943 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-26 12:00:27,992 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 950 Invalid, 1464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 521 Invalid, 0 Unknown, 943 Unchecked, 2.0s Time] [2023-11-26 12:00:27,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 907 states. [2023-11-26 12:00:28,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 907 to 824. [2023-11-26 12:00:28,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 824 states, 480 states have (on average 2.08125) internal successors, (999), 819 states have internal predecessors, (999), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-26 12:00:28,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 824 states to 824 states and 1005 transitions. [2023-11-26 12:00:28,014 INFO L78 Accepts]: Start accepts. Automaton has 824 states and 1005 transitions. Word has length 10 [2023-11-26 12:00:28,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:00:28,014 INFO L495 AbstractCegarLoop]: Abstraction has 824 states and 1005 transitions. [2023-11-26 12:00:28,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:28,014 INFO L276 IsEmpty]: Start isEmpty. Operand 824 states and 1005 transitions. [2023-11-26 12:00:28,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-26 12:00:28,015 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:00:28,015 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:28,024 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/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 12:00:28,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/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 12:00:28,219 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr340REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 423 more)] === [2023-11-26 12:00:28,220 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:28,220 INFO L85 PathProgramCache]: Analyzing trace with hash -1453073549, now seen corresponding path program 1 times [2023-11-26 12:00:28,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 12:00:28,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1809793710] [2023-11-26 12:00:28,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:28,221 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 12:00:28,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 12:00:28,222 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/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 12:00:28,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/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 12:00:28,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:28,382 INFO L262 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 12:00:28,384 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:00:28,394 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 12:00:28,394 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:00:28,395 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 12:00:28,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1809793710] [2023-11-26 12:00:28,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1809793710] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:28,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:28,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 12:00:28,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612192773] [2023-11-26 12:00:28,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:28,396 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:00:28,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 12:00:28,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:00:28,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:00:28,397 INFO L87 Difference]: Start difference. First operand 824 states and 1005 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 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 12:00:29,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:00:29,300 INFO L93 Difference]: Finished difference Result 770 states and 925 transitions. [2023-11-26 12:00:29,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:00:29,302 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 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 12:00:29,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:00:29,306 INFO L225 Difference]: With dead ends: 770 [2023-11-26 12:00:29,307 INFO L226 Difference]: Without dead ends: 770 [2023-11-26 12:00:29,307 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 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 12:00:29,308 INFO L413 NwaCegarLoop]: 601 mSDtfsCounter, 70 mSDsluCounter, 552 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 1153 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-26 12:00:29,308 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 1153 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-26 12:00:29,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 770 states. [2023-11-26 12:00:29,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 770 to 770. [2023-11-26 12:00:29,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 770 states, 450 states have (on average 2.042222222222222) internal successors, (919), 765 states have internal predecessors, (919), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-26 12:00:29,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 770 states to 770 states and 925 transitions. [2023-11-26 12:00:29,329 INFO L78 Accepts]: Start accepts. Automaton has 770 states and 925 transitions. Word has length 13 [2023-11-26 12:00:29,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:00:29,329 INFO L495 AbstractCegarLoop]: Abstraction has 770 states and 925 transitions. [2023-11-26 12:00:29,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 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 12:00:29,329 INFO L276 IsEmpty]: Start isEmpty. Operand 770 states and 925 transitions. [2023-11-26 12:00:29,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-26 12:00:29,330 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:00:29,330 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:29,338 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/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)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:29,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/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 12:00:29,539 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr364REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 423 more)] === [2023-11-26 12:00:29,540 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:29,540 INFO L85 PathProgramCache]: Analyzing trace with hash -539283155, now seen corresponding path program 1 times [2023-11-26 12:00:29,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 12:00:29,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [523836180] [2023-11-26 12:00:29,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:29,541 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 12:00:29,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 12:00:29,541 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/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 12:00:29,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/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 (10)] Waiting until timeout for monitored process [2023-11-26 12:00:29,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:29,689 INFO L262 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 12:00:29,692 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:00:29,733 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 12:00:29,734 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:00:29,734 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 12:00:29,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [523836180] [2023-11-26 12:00:29,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [523836180] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:29,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:29,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 12:00:29,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237770384] [2023-11-26 12:00:29,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:29,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 12:00:29,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 12:00:29,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 12:00:29,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 12:00:29,737 INFO L87 Difference]: Start difference. First operand 770 states and 925 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:30,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:00:30,951 INFO L93 Difference]: Finished difference Result 756 states and 883 transitions. [2023-11-26 12:00:30,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 12:00:30,953 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2023-11-26 12:00:30,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:00:30,956 INFO L225 Difference]: With dead ends: 756 [2023-11-26 12:00:30,957 INFO L226 Difference]: Without dead ends: 756 [2023-11-26 12:00:30,957 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 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 12:00:30,957 INFO L413 NwaCegarLoop]: 570 mSDtfsCounter, 58 mSDsluCounter, 1116 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 1686 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-26 12:00:30,958 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 1686 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-26 12:00:30,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 756 states. [2023-11-26 12:00:30,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 756 to 754. [2023-11-26 12:00:30,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 754 states, 448 states have (on average 1.953125) internal successors, (875), 749 states have internal predecessors, (875), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-26 12:00:30,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 754 states to 754 states and 881 transitions. [2023-11-26 12:00:30,976 INFO L78 Accepts]: Start accepts. Automaton has 754 states and 881 transitions. Word has length 15 [2023-11-26 12:00:30,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:00:30,977 INFO L495 AbstractCegarLoop]: Abstraction has 754 states and 881 transitions. [2023-11-26 12:00:30,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:30,977 INFO L276 IsEmpty]: Start isEmpty. Operand 754 states and 881 transitions. [2023-11-26 12:00:30,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-26 12:00:30,978 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:00:30,978 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:30,987 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/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 (10)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:31,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/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 12:00:31,188 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 423 more)] === [2023-11-26 12:00:31,188 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:31,188 INFO L85 PathProgramCache]: Analyzing trace with hash 158867379, now seen corresponding path program 1 times [2023-11-26 12:00:31,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 12:00:31,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [960435487] [2023-11-26 12:00:31,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:31,189 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 12:00:31,189 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 12:00:31,190 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/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 12:00:31,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/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 (11)] Waiting until timeout for monitored process [2023-11-26 12:00:31,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:31,400 INFO L262 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 12:00:31,402 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:00:31,413 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 12:00:31,413 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:00:31,413 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 12:00:31,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [960435487] [2023-11-26 12:00:31,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [960435487] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:31,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:31,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 12:00:31,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753316726] [2023-11-26 12:00:31,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:31,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:00:31,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 12:00:31,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:00:31,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:00:31,416 INFO L87 Difference]: Start difference. First operand 754 states and 881 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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 12:00:32,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:00:32,316 INFO L93 Difference]: Finished difference Result 715 states and 841 transitions. [2023-11-26 12:00:32,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:00:32,318 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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 16 [2023-11-26 12:00:32,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:00:32,323 INFO L225 Difference]: With dead ends: 715 [2023-11-26 12:00:32,323 INFO L226 Difference]: Without dead ends: 715 [2023-11-26 12:00:32,324 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 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 12:00:32,325 INFO L413 NwaCegarLoop]: 543 mSDtfsCounter, 70 mSDsluCounter, 494 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 1037 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-26 12:00:32,325 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 1037 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-26 12:00:32,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 715 states. [2023-11-26 12:00:32,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 715 to 715. [2023-11-26 12:00:32,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 715 states, 433 states have (on average 1.928406466512702) internal successors, (835), 710 states have internal predecessors, (835), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-26 12:00:32,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 715 states to 715 states and 841 transitions. [2023-11-26 12:00:32,346 INFO L78 Accepts]: Start accepts. Automaton has 715 states and 841 transitions. Word has length 16 [2023-11-26 12:00:32,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:00:32,347 INFO L495 AbstractCegarLoop]: Abstraction has 715 states and 841 transitions. [2023-11-26 12:00:32,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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 12:00:32,347 INFO L276 IsEmpty]: Start isEmpty. Operand 715 states and 841 transitions. [2023-11-26 12:00:32,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-26 12:00:32,348 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:00:32,348 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:32,358 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/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 (11)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:32,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/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 12:00:32,558 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr38REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 423 more)] === [2023-11-26 12:00:32,560 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:32,560 INFO L85 PathProgramCache]: Analyzing trace with hash -1947274035, now seen corresponding path program 1 times [2023-11-26 12:00:32,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 12:00:32,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1466705155] [2023-11-26 12:00:32,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:32,561 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 12:00:32,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 12:00:32,562 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/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 12:00:32,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/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 (12)] Waiting until timeout for monitored process [2023-11-26 12:00:32,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:32,770 INFO L262 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 12:00:32,772 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:00:32,797 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 12:00:32,797 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:00:32,797 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 12:00:32,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1466705155] [2023-11-26 12:00:32,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1466705155] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:32,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:32,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 12:00:32,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999704749] [2023-11-26 12:00:32,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:32,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 12:00:32,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 12:00:32,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 12:00:32,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 12:00:32,800 INFO L87 Difference]: Start difference. First operand 715 states and 841 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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 12:00:33,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:00:33,890 INFO L93 Difference]: Finished difference Result 701 states and 820 transitions. [2023-11-26 12:00:33,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 12:00:33,892 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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 18 [2023-11-26 12:00:33,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:00:33,895 INFO L225 Difference]: With dead ends: 701 [2023-11-26 12:00:33,895 INFO L226 Difference]: Without dead ends: 701 [2023-11-26 12:00:33,896 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 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 12:00:33,897 INFO L413 NwaCegarLoop]: 512 mSDtfsCounter, 58 mSDsluCounter, 1000 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 1512 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-26 12:00:33,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 1512 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-26 12:00:33,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 701 states. [2023-11-26 12:00:33,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 701 to 700. [2023-11-26 12:00:33,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 700 states, 432 states have (on average 1.8819444444444444) internal successors, (813), 695 states have internal predecessors, (813), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-26 12:00:33,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 700 states to 700 states and 819 transitions. [2023-11-26 12:00:33,914 INFO L78 Accepts]: Start accepts. Automaton has 700 states and 819 transitions. Word has length 18 [2023-11-26 12:00:33,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:00:33,915 INFO L495 AbstractCegarLoop]: Abstraction has 700 states and 819 transitions. [2023-11-26 12:00:33,915 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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 12:00:33,915 INFO L276 IsEmpty]: Start isEmpty. Operand 700 states and 819 transitions. [2023-11-26 12:00:33,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-26 12:00:33,917 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:00:33,918 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:33,925 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/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 (12)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:34,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/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 12:00:34,125 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr378REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 423 more)] === [2023-11-26 12:00:34,125 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:34,125 INFO L85 PathProgramCache]: Analyzing trace with hash 771082043, now seen corresponding path program 1 times [2023-11-26 12:00:34,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 12:00:34,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1403006400] [2023-11-26 12:00:34,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:34,126 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 12:00:34,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 12:00:34,127 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/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 12:00:34,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/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 (13)] Waiting until timeout for monitored process [2023-11-26 12:00:34,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:34,291 INFO L262 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 12:00:34,294 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:00:34,300 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 12:00:34,396 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 12:00:34,396 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:00:34,396 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 12:00:34,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1403006400] [2023-11-26 12:00:34,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1403006400] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:34,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:34,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:00:34,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471945011] [2023-11-26 12:00:34,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:34,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 12:00:34,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 12:00:34,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 12:00:34,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 12:00:34,399 INFO L87 Difference]: Start difference. First operand 700 states and 819 transitions. Second operand has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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 12:00:36,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:00:36,211 INFO L93 Difference]: Finished difference Result 696 states and 811 transitions. [2023-11-26 12:00:36,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 12:00:36,212 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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 29 [2023-11-26 12:00:36,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:00:36,215 INFO L225 Difference]: With dead ends: 696 [2023-11-26 12:00:36,216 INFO L226 Difference]: Without dead ends: 696 [2023-11-26 12:00:36,216 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 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 12:00:36,216 INFO L413 NwaCegarLoop]: 335 mSDtfsCounter, 529 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 596 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 532 SdHoareTripleChecker+Valid, 637 SdHoareTripleChecker+Invalid, 605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 596 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-26 12:00:36,217 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [532 Valid, 637 Invalid, 605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 596 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-26 12:00:36,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2023-11-26 12:00:36,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 696. [2023-11-26 12:00:36,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 696 states, 432 states have (on average 1.8634259259259258) internal successors, (805), 691 states have internal predecessors, (805), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-26 12:00:36,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 696 states to 696 states and 811 transitions. [2023-11-26 12:00:36,232 INFO L78 Accepts]: Start accepts. Automaton has 696 states and 811 transitions. Word has length 29 [2023-11-26 12:00:36,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:00:36,233 INFO L495 AbstractCegarLoop]: Abstraction has 696 states and 811 transitions. [2023-11-26 12:00:36,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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 12:00:36,233 INFO L276 IsEmpty]: Start isEmpty. Operand 696 states and 811 transitions. [2023-11-26 12:00:36,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-26 12:00:36,234 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:00:36,234 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:36,241 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/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 (13)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:36,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/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 12:00:36,437 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr379REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 423 more)] === [2023-11-26 12:00:36,437 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:36,437 INFO L85 PathProgramCache]: Analyzing trace with hash 771082044, now seen corresponding path program 1 times [2023-11-26 12:00:36,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 12:00:36,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [722426212] [2023-11-26 12:00:36,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:36,438 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 12:00:36,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 12:00:36,440 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/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 12:00:36,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/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 (14)] Waiting until timeout for monitored process [2023-11-26 12:00:36,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:36,601 INFO L262 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-26 12:00:36,606 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:00:36,617 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 12:00:36,879 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 12:00:36,880 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:00:36,880 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 12:00:36,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [722426212] [2023-11-26 12:00:36,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [722426212] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:36,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:36,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:00:36,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334050578] [2023-11-26 12:00:36,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:36,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 12:00:36,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 12:00:36,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 12:00:36,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 12:00:36,882 INFO L87 Difference]: Start difference. First operand 696 states and 811 transitions. Second operand has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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 12:00:39,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:00:39,946 INFO L93 Difference]: Finished difference Result 733 states and 809 transitions. [2023-11-26 12:00:39,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 12:00:39,947 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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 29 [2023-11-26 12:00:39,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:00:39,950 INFO L225 Difference]: With dead ends: 733 [2023-11-26 12:00:39,950 INFO L226 Difference]: Without dead ends: 733 [2023-11-26 12:00:39,951 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 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 12:00:39,952 INFO L413 NwaCegarLoop]: 495 mSDtfsCounter, 138 mSDsluCounter, 544 mSDsCounter, 0 mSdLazyCounter, 749 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 1039 SdHoareTripleChecker+Invalid, 752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 749 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-11-26 12:00:39,953 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 1039 Invalid, 752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 749 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-11-26 12:00:39,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 733 states. [2023-11-26 12:00:39,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 733 to 696. [2023-11-26 12:00:39,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 696 states, 432 states have (on average 1.8541666666666667) internal successors, (801), 691 states have internal predecessors, (801), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-26 12:00:39,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 696 states to 696 states and 807 transitions. [2023-11-26 12:00:39,970 INFO L78 Accepts]: Start accepts. Automaton has 696 states and 807 transitions. Word has length 29 [2023-11-26 12:00:39,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:00:39,971 INFO L495 AbstractCegarLoop]: Abstraction has 696 states and 807 transitions. [2023-11-26 12:00:39,971 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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 12:00:39,971 INFO L276 IsEmpty]: Start isEmpty. Operand 696 states and 807 transitions. [2023-11-26 12:00:39,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-26 12:00:39,973 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:00:39,973 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:39,982 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/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 (14)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:40,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/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 12:00:40,177 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr52REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 423 more)] === [2023-11-26 12:00:40,177 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:40,177 INFO L85 PathProgramCache]: Analyzing trace with hash -334207365, now seen corresponding path program 1 times [2023-11-26 12:00:40,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 12:00:40,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1220720090] [2023-11-26 12:00:40,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:40,178 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 12:00:40,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 12:00:40,180 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/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 12:00:40,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/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 (15)] Waiting until timeout for monitored process [2023-11-26 12:00:40,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:40,441 INFO L262 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 12:00:40,445 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:00:40,450 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 12:00:40,562 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 12:00:40,562 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:00:40,563 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 12:00:40,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1220720090] [2023-11-26 12:00:40,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1220720090] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:40,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:40,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 12:00:40,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322952916] [2023-11-26 12:00:40,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:40,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 12:00:40,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 12:00:40,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 12:00:40,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 12:00:40,566 INFO L87 Difference]: Start difference. First operand 696 states and 807 transitions. Second operand has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 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 12:00:42,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:00:42,815 INFO L93 Difference]: Finished difference Result 821 states and 945 transitions. [2023-11-26 12:00:42,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 12:00:42,817 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 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 32 [2023-11-26 12:00:42,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:00:42,820 INFO L225 Difference]: With dead ends: 821 [2023-11-26 12:00:42,820 INFO L226 Difference]: Without dead ends: 821 [2023-11-26 12:00:42,821 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 29 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 12:00:42,821 INFO L413 NwaCegarLoop]: 389 mSDtfsCounter, 580 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 761 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 583 SdHoareTripleChecker+Valid, 803 SdHoareTripleChecker+Invalid, 769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 761 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-26 12:00:42,821 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [583 Valid, 803 Invalid, 769 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 761 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-26 12:00:42,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 821 states. [2023-11-26 12:00:42,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 821 to 692. [2023-11-26 12:00:42,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 692 states, 432 states have (on average 1.8449074074074074) internal successors, (797), 687 states have internal predecessors, (797), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-26 12:00:42,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 803 transitions. [2023-11-26 12:00:42,835 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 803 transitions. Word has length 32 [2023-11-26 12:00:42,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:00:42,835 INFO L495 AbstractCegarLoop]: Abstraction has 692 states and 803 transitions. [2023-11-26 12:00:42,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 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 12:00:42,835 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 803 transitions. [2023-11-26 12:00:42,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-26 12:00:42,837 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:00:42,837 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:42,846 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/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 (15)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:43,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/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 12:00:43,046 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr53REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 423 more)] === [2023-11-26 12:00:43,046 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:43,046 INFO L85 PathProgramCache]: Analyzing trace with hash -334207364, now seen corresponding path program 1 times [2023-11-26 12:00:43,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 12:00:43,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [533126934] [2023-11-26 12:00:43,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:43,047 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 12:00:43,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 12:00:43,049 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/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 12:00:43,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966efe0c-dd7a-4cd0-8027-d8d1e6498c5f/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 (16)] Waiting until timeout for monitored process [2023-11-26 12:00:43,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:43,264 INFO L262 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-26 12:00:43,266 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:00:43,276 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 12:00:43,484 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 12:00:43,484 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:00:43,484 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 12:00:43,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [533126934] [2023-11-26 12:00:43,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [533126934] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:43,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:43,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 12:00:43,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759386306] [2023-11-26 12:00:43,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:43,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 12:00:43,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 12:00:43,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 12:00:43,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 12:00:43,486 INFO L87 Difference]: Start difference. First operand 692 states and 803 transitions. Second operand has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 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)