./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety-ext2/complex_data_creation_test02-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-ext2/complex_data_creation_test02-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --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 cb1edb9fb334d503cba549895692ff1d9d77f795ecc0798895274120b4ed179d --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 14:16:59,359 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 14:16:59,360 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 14:16:59,374 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 14:16:59,374 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 14:16:59,375 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 14:16:59,375 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 14:16:59,377 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 14:16:59,378 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 14:16:59,378 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 14:16:59,379 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 14:16:59,379 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 14:16:59,380 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 14:16:59,380 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 14:16:59,381 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 14:16:59,382 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 14:16:59,383 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 14:16:59,383 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 14:16:59,384 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 14:16:59,385 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 14:16:59,386 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 14:16:59,387 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 14:16:59,388 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 14:16:59,389 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 14:16:59,391 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 14:16:59,391 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 14:16:59,391 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 14:16:59,392 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 14:16:59,392 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 14:16:59,393 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 14:16:59,393 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 14:16:59,393 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 14:16:59,394 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 14:16:59,394 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 14:16:59,395 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 14:16:59,395 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 14:16:59,396 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 14:16:59,396 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 14:16:59,396 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 14:16:59,397 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 14:16:59,398 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 14:16:59,398 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-12-13 14:16:59,414 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 14:16:59,414 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 14:16:59,415 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 14:16:59,415 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 14:16:59,415 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 14:16:59,415 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 14:16:59,416 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 14:16:59,416 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 14:16:59,416 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 14:16:59,417 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 14:16:59,417 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 14:16:59,417 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 14:16:59,417 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 14:16:59,417 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 14:16:59,417 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 14:16:59,418 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-13 14:16:59,418 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-13 14:16:59,418 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-13 14:16:59,418 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 14:16:59,418 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 14:16:59,418 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 14:16:59,419 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 14:16:59,419 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 14:16:59,419 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 14:16:59,419 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 14:16:59,419 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 14:16:59,420 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 14:16:59,420 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 14:16:59,420 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 14:16:59,420 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 14:16:59,420 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 14:16:59,420 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 14:16:59,420 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 14:16:59,421 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 14:16:59,421 INFO L138 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_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cb1edb9fb334d503cba549895692ff1d9d77f795ecc0798895274120b4ed179d [2022-12-13 14:16:59,598 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 14:16:59,617 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 14:16:59,619 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 14:16:59,621 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 14:16:59,621 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 14:16:59,622 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/memsafety-ext2/complex_data_creation_test02-2.i [2022-12-13 14:17:02,140 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 14:17:02,347 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 14:17:02,347 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/sv-benchmarks/c/memsafety-ext2/complex_data_creation_test02-2.i [2022-12-13 14:17:02,355 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/data/b243fd3b8/3dfa30bdc45e451dbb4ad91b31d3319a/FLAG22fbfe43f [2022-12-13 14:17:02,742 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/data/b243fd3b8/3dfa30bdc45e451dbb4ad91b31d3319a [2022-12-13 14:17:02,746 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 14:17:02,747 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 14:17:02,749 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 14:17:02,749 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 14:17:02,753 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 14:17:02,753 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 02:17:02" (1/1) ... [2022-12-13 14:17:02,754 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ad1e21b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:17:02, skipping insertion in model container [2022-12-13 14:17:02,755 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 02:17:02" (1/1) ... [2022-12-13 14:17:02,762 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 14:17:02,794 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 14:17:03,022 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 14:17:03,030 ERROR L326 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) [2022-12-13 14:17:03,031 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1cd2b5a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:17:03, skipping insertion in model container [2022-12-13 14:17:03,031 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 14:17:03,031 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2022-12-13 14:17:03,032 INFO L158 Benchmark]: Toolchain (without parser) took 284.78ms. Allocated memory is still 180.4MB. Free memory was 143.1MB in the beginning and 131.1MB in the end (delta: 12.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-13 14:17:03,033 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 180.4MB. Free memory was 153.4MB in the beginning and 153.4MB in the end (delta: 16.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 14:17:03,033 INFO L158 Benchmark]: CACSL2BoogieTranslator took 282.51ms. Allocated memory is still 180.4MB. Free memory was 143.1MB in the beginning and 131.1MB in the end (delta: 12.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-13 14:17:03,034 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 180.4MB. Free memory was 153.4MB in the beginning and 153.4MB in the end (delta: 16.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 282.51ms. Allocated memory is still 180.4MB. Free memory was 143.1MB in the beginning and 131.1MB in the end (delta: 12.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 556]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-ext2/complex_data_creation_test02-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --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 cb1edb9fb334d503cba549895692ff1d9d77f795ecc0798895274120b4ed179d --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 14:17:04,578 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 14:17:04,580 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 14:17:04,598 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 14:17:04,599 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 14:17:04,600 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 14:17:04,601 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 14:17:04,602 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 14:17:04,604 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 14:17:04,605 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 14:17:04,606 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 14:17:04,607 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 14:17:04,607 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 14:17:04,608 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 14:17:04,609 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 14:17:04,610 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 14:17:04,611 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 14:17:04,611 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 14:17:04,613 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 14:17:04,615 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 14:17:04,616 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 14:17:04,617 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 14:17:04,618 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 14:17:04,619 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 14:17:04,622 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 14:17:04,623 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 14:17:04,623 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 14:17:04,624 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 14:17:04,624 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 14:17:04,625 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 14:17:04,625 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 14:17:04,630 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 14:17:04,631 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 14:17:04,631 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 14:17:04,632 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 14:17:04,633 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 14:17:04,633 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 14:17:04,633 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 14:17:04,633 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 14:17:04,634 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 14:17:04,635 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 14:17:04,635 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2022-12-13 14:17:04,655 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 14:17:04,656 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 14:17:04,656 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 14:17:04,656 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 14:17:04,657 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 14:17:04,657 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 14:17:04,658 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 14:17:04,658 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 14:17:04,658 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 14:17:04,658 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 14:17:04,658 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 14:17:04,658 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 14:17:04,658 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 14:17:04,659 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 14:17:04,659 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 14:17:04,659 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-13 14:17:04,659 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-13 14:17:04,659 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-13 14:17:04,659 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 14:17:04,659 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 14:17:04,659 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 14:17:04,659 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 14:17:04,660 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 14:17:04,660 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 14:17:04,660 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 14:17:04,660 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 14:17:04,660 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 14:17:04,660 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 14:17:04,660 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 14:17:04,660 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 14:17:04,660 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 14:17:04,661 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 14:17:04,661 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 14:17:04,661 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 14:17:04,661 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 14:17:04,661 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 14:17:04,661 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 14:17:04,661 INFO L138 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_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cb1edb9fb334d503cba549895692ff1d9d77f795ecc0798895274120b4ed179d [2022-12-13 14:17:04,887 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 14:17:04,904 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 14:17:04,907 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 14:17:04,907 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 14:17:04,908 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 14:17:04,909 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/memsafety-ext2/complex_data_creation_test02-2.i [2022-12-13 14:17:07,519 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 14:17:07,722 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 14:17:07,722 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/sv-benchmarks/c/memsafety-ext2/complex_data_creation_test02-2.i [2022-12-13 14:17:07,730 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/data/a011eb268/404bb5a2bdb44665a694f3be4ba23744/FLAG95aebb4c2 [2022-12-13 14:17:07,740 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/data/a011eb268/404bb5a2bdb44665a694f3be4ba23744 [2022-12-13 14:17:07,742 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 14:17:07,743 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 14:17:07,744 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 14:17:07,745 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 14:17:07,748 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 14:17:07,748 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 02:17:07" (1/1) ... [2022-12-13 14:17:07,749 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77fa9bcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:17:07, skipping insertion in model container [2022-12-13 14:17:07,750 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 02:17:07" (1/1) ... [2022-12-13 14:17:07,756 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 14:17:07,787 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 14:17:08,045 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 14:17:08,055 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-12-13 14:17:08,059 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 14:17:08,082 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 14:17:08,086 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 14:17:08,112 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 14:17:08,133 INFO L208 MainTranslator]: Completed translation [2022-12-13 14:17:08,133 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:17:08 WrapperNode [2022-12-13 14:17:08,133 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 14:17:08,134 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 14:17:08,134 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 14:17:08,134 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 14:17:08,140 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:17:08" (1/1) ... [2022-12-13 14:17:08,151 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:17:08" (1/1) ... [2022-12-13 14:17:08,166 INFO L138 Inliner]: procedures = 129, calls = 62, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 98 [2022-12-13 14:17:08,167 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 14:17:08,167 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 14:17:08,167 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 14:17:08,167 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 14:17:08,175 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:17:08" (1/1) ... [2022-12-13 14:17:08,175 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:17:08" (1/1) ... [2022-12-13 14:17:08,179 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:17:08" (1/1) ... [2022-12-13 14:17:08,180 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:17:08" (1/1) ... [2022-12-13 14:17:08,192 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:17:08" (1/1) ... [2022-12-13 14:17:08,196 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:17:08" (1/1) ... [2022-12-13 14:17:08,198 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:17:08" (1/1) ... [2022-12-13 14:17:08,199 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:17:08" (1/1) ... [2022-12-13 14:17:08,202 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 14:17:08,203 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 14:17:08,203 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 14:17:08,203 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 14:17:08,204 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:17:08" (1/1) ... [2022-12-13 14:17:08,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 14:17:08,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:17:08,230 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 14:17:08,233 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 14:17:08,264 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-12-13 14:17:08,265 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-13 14:17:08,265 INFO L130 BoogieDeclarations]: Found specification of procedure create_data [2022-12-13 14:17:08,269 INFO L138 BoogieDeclarations]: Found implementation of procedure create_data [2022-12-13 14:17:08,269 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 14:17:08,270 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 14:17:08,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-13 14:17:08,270 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-13 14:17:08,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 14:17:08,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-12-13 14:17:08,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-13 14:17:08,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-13 14:17:08,271 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 14:17:08,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 14:17:08,364 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 14:17:08,367 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 14:17:09,067 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 14:17:09,072 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 14:17:09,073 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-12-13 14:17:09,074 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:17:09 BoogieIcfgContainer [2022-12-13 14:17:09,075 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 14:17:09,076 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 14:17:09,076 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 14:17:09,078 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 14:17:09,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 02:17:07" (1/3) ... [2022-12-13 14:17:09,079 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3afa507b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 02:17:09, skipping insertion in model container [2022-12-13 14:17:09,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:17:08" (2/3) ... [2022-12-13 14:17:09,079 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3afa507b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 02:17:09, skipping insertion in model container [2022-12-13 14:17:09,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:17:09" (3/3) ... [2022-12-13 14:17:09,080 INFO L112 eAbstractionObserver]: Analyzing ICFG complex_data_creation_test02-2.i [2022-12-13 14:17:09,094 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 14:17:09,095 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 92 error locations. [2022-12-13 14:17:09,141 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 14:17:09,148 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@630bf41e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 14:17:09,148 INFO L358 AbstractCegarLoop]: Starting to check reachability of 92 error locations. [2022-12-13 14:17:09,152 INFO L276 IsEmpty]: Start isEmpty. Operand has 189 states, 93 states have (on average 2.161290322580645) internal successors, (201), 185 states have internal predecessors, (201), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 14:17:09,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-13 14:17:09,158 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:17:09,159 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-13 14:17:09,160 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr26REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [create_dataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 89 more)] === [2022-12-13 14:17:09,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:17:09,165 INFO L85 PathProgramCache]: Analyzing trace with hash 5052905, now seen corresponding path program 1 times [2022-12-13 14:17:09,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 14:17:09,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [141327955] [2022-12-13 14:17:09,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:17:09,178 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 [2022-12-13 14:17:09,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 14:17:09,179 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -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) [2022-12-13 14:17:09,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -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 [2022-12-13 14:17:09,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:17:09,235 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-13 14:17:09,239 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:17:09,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:17:09,256 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 14:17:09,257 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 14:17:09,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [141327955] [2022-12-13 14:17:09,258 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [141327955] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:17:09,258 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:17:09,258 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 14:17:09,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236755757] [2022-12-13 14:17:09,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:17:09,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 14:17:09,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 14:17:09,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 14:17:09,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 14:17:09,292 INFO L87 Difference]: Start difference. First operand has 189 states, 93 states have (on average 2.161290322580645) internal successors, (201), 185 states have internal predecessors, (201), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:17:09,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:17:09,315 INFO L93 Difference]: Finished difference Result 189 states and 200 transitions. [2022-12-13 14:17:09,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 14:17:09,316 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-12-13 14:17:09,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:17:09,322 INFO L225 Difference]: With dead ends: 189 [2022-12-13 14:17:09,322 INFO L226 Difference]: Without dead ends: 187 [2022-12-13 14:17:09,323 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 14:17:09,326 INFO L413 NwaCegarLoop]: 200 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 14:17:09,326 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 14:17:09,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2022-12-13 14:17:09,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 187. [2022-12-13 14:17:09,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 92 states have (on average 2.108695652173913) internal successors, (194), 183 states have internal predecessors, (194), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 14:17:09,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 198 transitions. [2022-12-13 14:17:09,358 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 198 transitions. Word has length 4 [2022-12-13 14:17:09,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:17:09,358 INFO L495 AbstractCegarLoop]: Abstraction has 187 states and 198 transitions. [2022-12-13 14:17:09,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:17:09,358 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 198 transitions. [2022-12-13 14:17:09,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-13 14:17:09,359 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:17:09,359 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-13 14:17:09,370 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -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 [2022-12-13 14:17:09,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 14:17:09,561 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [create_dataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 89 more)] === [2022-12-13 14:17:09,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:17:09,563 INFO L85 PathProgramCache]: Analyzing trace with hash 5050693, now seen corresponding path program 1 times [2022-12-13 14:17:09,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 14:17:09,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [784046392] [2022-12-13 14:17:09,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:17:09,565 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 [2022-12-13 14:17:09,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 14:17:09,569 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -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) [2022-12-13 14:17:09,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -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 [2022-12-13 14:17:09,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:17:09,729 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 14:17:09,731 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:17:09,771 INFO L350 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 [2022-12-13 14:17:09,811 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-12-13 14:17:09,812 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2022-12-13 14:17:09,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:17:09,829 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 14:17:09,829 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 14:17:09,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [784046392] [2022-12-13 14:17:09,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [784046392] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:17:09,830 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:17:09,830 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 14:17:09,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87152293] [2022-12-13 14:17:09,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:17:09,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 14:17:09,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 14:17:09,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 14:17:09,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 14:17:09,833 INFO L87 Difference]: Start difference. First operand 187 states and 198 transitions. Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:17:10,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:17:10,294 INFO L93 Difference]: Finished difference Result 207 states and 219 transitions. [2022-12-13 14:17:10,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 14:17:10,295 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-12-13 14:17:10,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:17:10,296 INFO L225 Difference]: With dead ends: 207 [2022-12-13 14:17:10,296 INFO L226 Difference]: Without dead ends: 207 [2022-12-13 14:17:10,297 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 14:17:10,298 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 149 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-13 14:17:10,298 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 287 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-13 14:17:10,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2022-12-13 14:17:10,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 181. [2022-12-13 14:17:10,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 92 states have (on average 2.0434782608695654) internal successors, (188), 177 states have internal predecessors, (188), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 14:17:10,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 192 transitions. [2022-12-13 14:17:10,308 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 192 transitions. Word has length 4 [2022-12-13 14:17:10,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:17:10,309 INFO L495 AbstractCegarLoop]: Abstraction has 181 states and 192 transitions. [2022-12-13 14:17:10,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:17:10,309 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 192 transitions. [2022-12-13 14:17:10,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-13 14:17:10,309 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:17:10,309 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-13 14:17:10,330 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-12-13 14:17:10,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 14:17:10,512 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [create_dataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 89 more)] === [2022-12-13 14:17:10,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:17:10,514 INFO L85 PathProgramCache]: Analyzing trace with hash 5050694, now seen corresponding path program 1 times [2022-12-13 14:17:10,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 14:17:10,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1941038841] [2022-12-13 14:17:10,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:17:10,517 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 [2022-12-13 14:17:10,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 14:17:10,521 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -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) [2022-12-13 14:17:10,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -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 [2022-12-13 14:17:10,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:17:10,674 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-13 14:17:10,677 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:17:10,692 INFO L350 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 [2022-12-13 14:17:10,698 INFO L350 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 [2022-12-13 14:17:10,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:17:10,734 INFO L350 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 12 treesize of output 14 [2022-12-13 14:17:10,743 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-12-13 14:17:10,744 INFO L350 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 [2022-12-13 14:17:10,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:17:10,760 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 14:17:10,760 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 14:17:10,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1941038841] [2022-12-13 14:17:10,760 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1941038841] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:17:10,761 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:17:10,761 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 14:17:10,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245980772] [2022-12-13 14:17:10,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:17:10,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 14:17:10,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 14:17:10,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 14:17:10,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 14:17:10,762 INFO L87 Difference]: Start difference. First operand 181 states and 192 transitions. Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:17:11,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:17:11,308 INFO L93 Difference]: Finished difference Result 197 states and 211 transitions. [2022-12-13 14:17:11,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 14:17:11,309 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-12-13 14:17:11,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:17:11,311 INFO L225 Difference]: With dead ends: 197 [2022-12-13 14:17:11,311 INFO L226 Difference]: Without dead ends: 197 [2022-12-13 14:17:11,312 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 14:17:11,313 INFO L413 NwaCegarLoop]: 182 mSDtfsCounter, 28 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-13 14:17:11,313 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 344 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-13 14:17:11,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2022-12-13 14:17:11,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 186. [2022-12-13 14:17:11,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 97 states have (on average 2.0103092783505154) internal successors, (195), 182 states have internal predecessors, (195), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 14:17:11,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 199 transitions. [2022-12-13 14:17:11,325 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 199 transitions. Word has length 4 [2022-12-13 14:17:11,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:17:11,325 INFO L495 AbstractCegarLoop]: Abstraction has 186 states and 199 transitions. [2022-12-13 14:17:11,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:17:11,326 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 199 transitions. [2022-12-13 14:17:11,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-13 14:17:11,326 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:17:11,326 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 14:17:11,334 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -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 [2022-12-13 14:17:11,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 14:17:11,528 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [create_dataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 89 more)] === [2022-12-13 14:17:11,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:17:11,530 INFO L85 PathProgramCache]: Analyzing trace with hash 156571597, now seen corresponding path program 1 times [2022-12-13 14:17:11,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 14:17:11,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [301240516] [2022-12-13 14:17:11,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:17:11,533 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 [2022-12-13 14:17:11,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 14:17:11,536 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -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) [2022-12-13 14:17:11,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -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 [2022-12-13 14:17:11,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:17:11,623 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 14:17:11,624 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:17:11,628 INFO L350 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 [2022-12-13 14:17:11,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:17:11,635 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 14:17:11,635 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 14:17:11,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [301240516] [2022-12-13 14:17:11,636 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [301240516] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:17:11,636 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:17:11,636 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 14:17:11,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047460705] [2022-12-13 14:17:11,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:17:11,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 14:17:11,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 14:17:11,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 14:17:11,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 14:17:11,638 INFO L87 Difference]: Start difference. First operand 186 states and 199 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:17:11,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:17:11,852 INFO L93 Difference]: Finished difference Result 209 states and 222 transitions. [2022-12-13 14:17:11,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 14:17:11,853 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-12-13 14:17:11,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:17:11,853 INFO L225 Difference]: With dead ends: 209 [2022-12-13 14:17:11,854 INFO L226 Difference]: Without dead ends: 209 [2022-12-13 14:17:11,854 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 14:17:11,854 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 64 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 14:17:11,855 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 232 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 14:17:11,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2022-12-13 14:17:11,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 184. [2022-12-13 14:17:11,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 97 states have (on average 1.9793814432989691) internal successors, (192), 180 states have internal predecessors, (192), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 14:17:11,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 196 transitions. [2022-12-13 14:17:11,860 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 196 transitions. Word has length 5 [2022-12-13 14:17:11,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:17:11,860 INFO L495 AbstractCegarLoop]: Abstraction has 184 states and 196 transitions. [2022-12-13 14:17:11,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:17:11,861 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 196 transitions. [2022-12-13 14:17:11,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-13 14:17:11,861 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:17:11,861 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 14:17:11,870 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2022-12-13 14:17:12,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 14:17:12,063 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [create_dataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 89 more)] === [2022-12-13 14:17:12,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:17:12,065 INFO L85 PathProgramCache]: Analyzing trace with hash 156571598, now seen corresponding path program 1 times [2022-12-13 14:17:12,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 14:17:12,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1772381932] [2022-12-13 14:17:12,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:17:12,067 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 [2022-12-13 14:17:12,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 14:17:12,070 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -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) [2022-12-13 14:17:12,073 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -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 [2022-12-13 14:17:12,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:17:12,174 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 14:17:12,176 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:17:12,188 INFO L350 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 [2022-12-13 14:17:12,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:17:12,198 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 14:17:12,198 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 14:17:12,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1772381932] [2022-12-13 14:17:12,198 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1772381932] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:17:12,198 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:17:12,199 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 14:17:12,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398746231] [2022-12-13 14:17:12,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:17:12,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 14:17:12,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 14:17:12,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 14:17:12,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 14:17:12,200 INFO L87 Difference]: Start difference. First operand 184 states and 196 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:17:12,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:17:12,512 INFO L93 Difference]: Finished difference Result 182 states and 193 transitions. [2022-12-13 14:17:12,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 14:17:12,513 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-12-13 14:17:12,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:17:12,513 INFO L225 Difference]: With dead ends: 182 [2022-12-13 14:17:12,513 INFO L226 Difference]: Without dead ends: 182 [2022-12-13 14:17:12,514 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 14:17:12,514 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 11 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 14:17:12,514 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 273 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 14:17:12,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2022-12-13 14:17:12,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2022-12-13 14:17:12,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 97 states have (on average 1.9484536082474226) internal successors, (189), 178 states have internal predecessors, (189), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 14:17:12,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 193 transitions. [2022-12-13 14:17:12,521 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 193 transitions. Word has length 5 [2022-12-13 14:17:12,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:17:12,521 INFO L495 AbstractCegarLoop]: Abstraction has 182 states and 193 transitions. [2022-12-13 14:17:12,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:17:12,522 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 193 transitions. [2022-12-13 14:17:12,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-13 14:17:12,522 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:17:12,522 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:17:12,532 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -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 [2022-12-13 14:17:12,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 14:17:12,724 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [create_dataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 89 more)] === [2022-12-13 14:17:12,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:17:12,725 INFO L85 PathProgramCache]: Analyzing trace with hash 666573431, now seen corresponding path program 1 times [2022-12-13 14:17:12,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 14:17:12,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1370247220] [2022-12-13 14:17:12,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:17:12,727 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 [2022-12-13 14:17:12,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 14:17:12,731 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -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) [2022-12-13 14:17:12,734 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -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 [2022-12-13 14:17:12,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:17:12,787 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 14 conjunts are in the unsatisfiable core [2022-12-13 14:17:12,788 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:17:12,798 INFO L350 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 [2022-12-13 14:17:12,824 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-12-13 14:17:12,824 INFO L350 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 [2022-12-13 14:17:12,869 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 16 [2022-12-13 14:17:12,874 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 16 [2022-12-13 14:17:12,905 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-12-13 14:17:12,910 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-12-13 14:17:12,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:17:12,927 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 14:17:12,927 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 14:17:12,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1370247220] [2022-12-13 14:17:12,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1370247220] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:17:12,927 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:17:12,927 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 14:17:12,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982166238] [2022-12-13 14:17:12,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:17:12,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 14:17:12,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 14:17:12,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 14:17:12,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-13 14:17:12,929 INFO L87 Difference]: Start difference. First operand 182 states and 193 transitions. Second operand has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 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) [2022-12-13 14:17:13,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:17:13,404 INFO L93 Difference]: Finished difference Result 184 states and 196 transitions. [2022-12-13 14:17:13,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 14:17:13,405 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 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 [2022-12-13 14:17:13,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:17:13,405 INFO L225 Difference]: With dead ends: 184 [2022-12-13 14:17:13,405 INFO L226 Difference]: Without dead ends: 184 [2022-12-13 14:17:13,406 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-12-13 14:17:13,406 INFO L413 NwaCegarLoop]: 184 mSDtfsCounter, 6 mSDsluCounter, 422 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 606 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-13 14:17:13,406 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 606 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-13 14:17:13,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2022-12-13 14:17:13,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 183. [2022-12-13 14:17:13,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 98 states have (on average 1.9387755102040816) internal successors, (190), 179 states have internal predecessors, (190), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 14:17:13,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 194 transitions. [2022-12-13 14:17:13,411 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 194 transitions. Word has length 10 [2022-12-13 14:17:13,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:17:13,411 INFO L495 AbstractCegarLoop]: Abstraction has 183 states and 194 transitions. [2022-12-13 14:17:13,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 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) [2022-12-13 14:17:13,411 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 194 transitions. [2022-12-13 14:17:13,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-13 14:17:13,412 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:17:13,412 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:17:13,421 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2022-12-13 14:17:13,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 14:17:13,613 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting create_dataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [create_dataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 89 more)] === [2022-12-13 14:17:13,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:17:13,615 INFO L85 PathProgramCache]: Analyzing trace with hash 623653565, now seen corresponding path program 1 times [2022-12-13 14:17:13,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 14:17:13,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1499581991] [2022-12-13 14:17:13,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:17:13,619 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 [2022-12-13 14:17:13,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 14:17:13,622 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -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) [2022-12-13 14:17:13,625 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -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 [2022-12-13 14:17:13,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:17:13,724 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 14:17:13,725 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:17:13,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:17:13,749 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 14:17:13,749 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 14:17:13,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1499581991] [2022-12-13 14:17:13,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1499581991] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:17:13,749 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:17:13,749 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 14:17:13,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180758827] [2022-12-13 14:17:13,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:17:13,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 14:17:13,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 14:17:13,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 14:17:13,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 14:17:13,751 INFO L87 Difference]: Start difference. First operand 183 states and 194 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:17:13,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:17:13,779 INFO L93 Difference]: Finished difference Result 260 states and 275 transitions. [2022-12-13 14:17:13,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 14:17:13,779 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-12-13 14:17:13,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:17:13,781 INFO L225 Difference]: With dead ends: 260 [2022-12-13 14:17:13,781 INFO L226 Difference]: Without dead ends: 260 [2022-12-13 14:17:13,782 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 14:17:13,783 INFO L413 NwaCegarLoop]: 184 mSDtfsCounter, 81 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 548 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 14:17:13,783 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 548 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 14:17:13,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2022-12-13 14:17:13,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 224. [2022-12-13 14:17:13,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 138 states have (on average 1.963768115942029) internal successors, (271), 219 states have internal predecessors, (271), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 14:17:13,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 275 transitions. [2022-12-13 14:17:13,792 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 275 transitions. Word has length 12 [2022-12-13 14:17:13,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:17:13,793 INFO L495 AbstractCegarLoop]: Abstraction has 224 states and 275 transitions. [2022-12-13 14:17:13,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:17:13,793 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 275 transitions. [2022-12-13 14:17:13,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-13 14:17:13,793 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:17:13,793 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:17:13,805 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -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 [2022-12-13 14:17:13,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 14:17:13,994 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting create_dataErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [create_dataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 89 more)] === [2022-12-13 14:17:13,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:17:13,995 INFO L85 PathProgramCache]: Analyzing trace with hash -2141569776, now seen corresponding path program 1 times [2022-12-13 14:17:13,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 14:17:13,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1871695538] [2022-12-13 14:17:13,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:17:13,995 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 [2022-12-13 14:17:13,995 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 14:17:13,996 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -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) [2022-12-13 14:17:13,997 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -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 [2022-12-13 14:17:14,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:17:14,050 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 14:17:14,052 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:17:14,072 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-12-13 14:17:14,073 INFO L350 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 1 case distinctions, treesize of input 9 treesize of output 15 [2022-12-13 14:17:14,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:17:14,085 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 14:17:14,085 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 14:17:14,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1871695538] [2022-12-13 14:17:14,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1871695538] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:17:14,085 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:17:14,085 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 14:17:14,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112939064] [2022-12-13 14:17:14,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:17:14,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 14:17:14,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 14:17:14,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 14:17:14,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 14:17:14,087 INFO L87 Difference]: Start difference. First operand 224 states and 275 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:17:14,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:17:14,361 INFO L93 Difference]: Finished difference Result 227 states and 271 transitions. [2022-12-13 14:17:14,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 14:17:14,362 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-12-13 14:17:14,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:17:14,363 INFO L225 Difference]: With dead ends: 227 [2022-12-13 14:17:14,363 INFO L226 Difference]: Without dead ends: 227 [2022-12-13 14:17:14,364 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 [2022-12-13 14:17:14,364 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 62 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 14:17:14,364 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 202 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 14:17:14,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2022-12-13 14:17:14,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 218. [2022-12-13 14:17:14,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 144 states have (on average 1.8125) internal successors, (261), 213 states have internal predecessors, (261), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 14:17:14,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 265 transitions. [2022-12-13 14:17:14,368 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 265 transitions. Word has length 13 [2022-12-13 14:17:14,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:17:14,368 INFO L495 AbstractCegarLoop]: Abstraction has 218 states and 265 transitions. [2022-12-13 14:17:14,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:17:14,368 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 265 transitions. [2022-12-13 14:17:14,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-13 14:17:14,369 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:17:14,369 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:17:14,381 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2022-12-13 14:17:14,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 14:17:14,570 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting create_dataErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [create_dataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 89 more)] === [2022-12-13 14:17:14,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:17:14,571 INFO L85 PathProgramCache]: Analyzing trace with hash -2141569775, now seen corresponding path program 1 times [2022-12-13 14:17:14,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 14:17:14,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1970218862] [2022-12-13 14:17:14,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:17:14,572 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 [2022-12-13 14:17:14,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 14:17:14,573 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -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) [2022-12-13 14:17:14,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -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 [2022-12-13 14:17:14,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:17:14,688 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 14:17:14,690 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:17:14,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:17:14,703 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2022-12-13 14:17:14,710 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-12-13 14:17:14,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:17:14,717 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 14:17:14,717 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 14:17:14,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1970218862] [2022-12-13 14:17:14,717 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1970218862] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:17:14,717 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:17:14,718 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 14:17:14,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361329701] [2022-12-13 14:17:14,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:17:14,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 14:17:14,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 14:17:14,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 14:17:14,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 14:17:14,719 INFO L87 Difference]: Start difference. First operand 218 states and 265 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:17:15,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:17:15,076 INFO L93 Difference]: Finished difference Result 239 states and 279 transitions. [2022-12-13 14:17:15,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 14:17:15,077 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-12-13 14:17:15,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:17:15,078 INFO L225 Difference]: With dead ends: 239 [2022-12-13 14:17:15,078 INFO L226 Difference]: Without dead ends: 239 [2022-12-13 14:17:15,078 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 [2022-12-13 14:17:15,078 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 49 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-13 14:17:15,078 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 212 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-13 14:17:15,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2022-12-13 14:17:15,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 219. [2022-12-13 14:17:15,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 154 states have (on average 1.655844155844156) internal successors, (255), 214 states have internal predecessors, (255), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 14:17:15,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 259 transitions. [2022-12-13 14:17:15,082 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 259 transitions. Word has length 13 [2022-12-13 14:17:15,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:17:15,082 INFO L495 AbstractCegarLoop]: Abstraction has 219 states and 259 transitions. [2022-12-13 14:17:15,082 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:17:15,082 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 259 transitions. [2022-12-13 14:17:15,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-13 14:17:15,083 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:17:15,083 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:17:15,094 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2022-12-13 14:17:15,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 14:17:15,285 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting create_dataErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [create_dataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 89 more)] === [2022-12-13 14:17:15,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:17:15,286 INFO L85 PathProgramCache]: Analyzing trace with hash 533828155, now seen corresponding path program 1 times [2022-12-13 14:17:15,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 14:17:15,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1256167278] [2022-12-13 14:17:15,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:17:15,288 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 [2022-12-13 14:17:15,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 14:17:15,291 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -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) [2022-12-13 14:17:15,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -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 [2022-12-13 14:17:15,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:17:15,372 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 14:17:15,374 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:17:15,387 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-13 14:17:15,388 INFO L350 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 1 case distinctions, treesize of input 9 treesize of output 19 [2022-12-13 14:17:15,399 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-13 14:17:15,418 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2022-12-13 14:17:15,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:17:15,426 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 14:17:15,427 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 14:17:15,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1256167278] [2022-12-13 14:17:15,427 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1256167278] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:17:15,427 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:17:15,427 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 14:17:15,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135359004] [2022-12-13 14:17:15,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:17:15,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 14:17:15,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 14:17:15,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 14:17:15,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 14:17:15,428 INFO L87 Difference]: Start difference. First operand 219 states and 259 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:17:15,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:17:15,983 INFO L93 Difference]: Finished difference Result 270 states and 323 transitions. [2022-12-13 14:17:15,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 14:17:15,984 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-12-13 14:17:15,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:17:15,985 INFO L225 Difference]: With dead ends: 270 [2022-12-13 14:17:15,985 INFO L226 Difference]: Without dead ends: 270 [2022-12-13 14:17:15,986 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-12-13 14:17:15,986 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 26 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-13 14:17:15,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 413 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-13 14:17:15,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2022-12-13 14:17:15,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 225. [2022-12-13 14:17:15,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 160 states have (on average 1.65625) internal successors, (265), 220 states have internal predecessors, (265), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 14:17:15,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 269 transitions. [2022-12-13 14:17:15,990 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 269 transitions. Word has length 17 [2022-12-13 14:17:15,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:17:15,991 INFO L495 AbstractCegarLoop]: Abstraction has 225 states and 269 transitions. [2022-12-13 14:17:15,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:17:15,991 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 269 transitions. [2022-12-13 14:17:15,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-13 14:17:15,991 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:17:15,991 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:17:16,002 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -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 [2022-12-13 14:17:16,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 14:17:16,193 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting create_dataErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [create_dataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 89 more)] === [2022-12-13 14:17:16,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:17:16,195 INFO L85 PathProgramCache]: Analyzing trace with hash 533828156, now seen corresponding path program 1 times [2022-12-13 14:17:16,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 14:17:16,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [622165160] [2022-12-13 14:17:16,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:17:16,197 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 [2022-12-13 14:17:16,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 14:17:16,199 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -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) [2022-12-13 14:17:16,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -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 [2022-12-13 14:17:16,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:17:16,349 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 13 conjunts are in the unsatisfiable core [2022-12-13 14:17:16,350 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:17:16,368 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-13 14:17:16,368 INFO L350 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 1 case distinctions, treesize of input 9 treesize of output 15 [2022-12-13 14:17:16,384 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-13 14:17:16,391 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-13 14:17:16,445 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2022-12-13 14:17:16,450 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-12-13 14:17:16,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:17:16,467 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 14:17:16,467 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 14:17:16,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [622165160] [2022-12-13 14:17:16,468 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [622165160] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:17:16,468 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:17:16,468 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 14:17:16,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490861662] [2022-12-13 14:17:16,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:17:16,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 14:17:16,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 14:17:16,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 14:17:16,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-13 14:17:16,469 INFO L87 Difference]: Start difference. First operand 225 states and 269 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:17:17,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:17:17,013 INFO L93 Difference]: Finished difference Result 227 states and 267 transitions. [2022-12-13 14:17:17,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 14:17:17,014 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-12-13 14:17:17,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:17:17,015 INFO L225 Difference]: With dead ends: 227 [2022-12-13 14:17:17,015 INFO L226 Difference]: Without dead ends: 227 [2022-12-13 14:17:17,015 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-12-13 14:17:17,015 INFO L413 NwaCegarLoop]: 163 mSDtfsCounter, 4 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 424 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-13 14:17:17,015 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 424 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-13 14:17:17,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2022-12-13 14:17:17,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 225. [2022-12-13 14:17:17,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 160 states have (on average 1.63125) internal successors, (261), 220 states have internal predecessors, (261), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 14:17:17,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 265 transitions. [2022-12-13 14:17:17,019 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 265 transitions. Word has length 17 [2022-12-13 14:17:17,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:17:17,019 INFO L495 AbstractCegarLoop]: Abstraction has 225 states and 265 transitions. [2022-12-13 14:17:17,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:17:17,019 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 265 transitions. [2022-12-13 14:17:17,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-13 14:17:17,019 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:17:17,019 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:17:17,027 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2022-12-13 14:17:17,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 14:17:17,221 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting create_dataErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [create_dataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 89 more)] === [2022-12-13 14:17:17,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:17:17,222 INFO L85 PathProgramCache]: Analyzing trace with hash -1553049946, now seen corresponding path program 1 times [2022-12-13 14:17:17,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 14:17:17,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [552796076] [2022-12-13 14:17:17,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:17:17,223 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 [2022-12-13 14:17:17,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 14:17:17,224 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -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) [2022-12-13 14:17:17,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -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 [2022-12-13 14:17:17,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:17:17,357 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 13 conjunts are in the unsatisfiable core [2022-12-13 14:17:17,359 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:17:17,372 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-12-13 14:17:17,372 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 22 [2022-12-13 14:17:17,391 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-13 14:17:17,459 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-12-13 14:17:17,459 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 37 [2022-12-13 14:17:17,490 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 15 [2022-12-13 14:17:17,512 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 14:17:17,512 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 14:17:17,552 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_178 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_create_data_#t~mem9.base| v_ArrVal_178) c_create_data_~data~0.base) (bvadd (_ bv4 32) c_create_data_~data~0.offset))) (_ bv1 1)))) is different from false [2022-12-13 14:17:17,562 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_178 (Array (_ BitVec 32) (_ BitVec 32)))) (= (bvadd (select |c_#valid| (let ((.cse0 (bvadd (_ bv4 32) c_create_data_~data~0.offset))) (select (select (store |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| c_create_data_~data~0.base) .cse0) v_ArrVal_178) c_create_data_~data~0.base) .cse0))) (_ bv1 1)) (_ bv0 1))) is different from false [2022-12-13 14:17:17,583 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 14:17:17,583 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 27 [2022-12-13 14:17:17,586 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 32 [2022-12-13 14:17:17,593 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-13 14:17:17,630 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 3 not checked. [2022-12-13 14:17:17,631 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 14:17:17,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [552796076] [2022-12-13 14:17:17,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [552796076] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 14:17:17,631 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 14:17:17,631 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 10 [2022-12-13 14:17:17,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847402797] [2022-12-13 14:17:17,631 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 14:17:17,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 14:17:17,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 14:17:17,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 14:17:17,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=52, Unknown=2, NotChecked=30, Total=110 [2022-12-13 14:17:17,632 INFO L87 Difference]: Start difference. First operand 225 states and 265 transitions. Second operand has 11 states, 10 states have (on average 3.1) internal successors, (31), 11 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:17:18,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:17:18,268 INFO L93 Difference]: Finished difference Result 232 states and 269 transitions. [2022-12-13 14:17:18,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 14:17:18,269 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.1) internal successors, (31), 11 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-12-13 14:17:18,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:17:18,270 INFO L225 Difference]: With dead ends: 232 [2022-12-13 14:17:18,270 INFO L226 Difference]: Without dead ends: 232 [2022-12-13 14:17:18,270 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 33 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=64, Unknown=2, NotChecked=34, Total=132 [2022-12-13 14:17:18,271 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 47 mSDsluCounter, 457 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 609 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 210 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-13 14:17:18,271 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 609 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 327 Invalid, 0 Unknown, 210 Unchecked, 0.6s Time] [2022-12-13 14:17:18,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2022-12-13 14:17:18,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 224. [2022-12-13 14:17:18,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 160 states have (on average 1.61875) internal successors, (259), 219 states have internal predecessors, (259), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 14:17:18,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 263 transitions. [2022-12-13 14:17:18,276 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 263 transitions. Word has length 22 [2022-12-13 14:17:18,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:17:18,276 INFO L495 AbstractCegarLoop]: Abstraction has 224 states and 263 transitions. [2022-12-13 14:17:18,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.1) internal successors, (31), 11 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:17:18,276 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 263 transitions. [2022-12-13 14:17:18,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-13 14:17:18,277 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:17:18,277 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:17:18,289 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -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)] Ended with exit code 0 [2022-12-13 14:17:18,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 14:17:18,477 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting create_dataErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [create_dataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 89 more)] === [2022-12-13 14:17:18,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:17:18,478 INFO L85 PathProgramCache]: Analyzing trace with hash -1553049945, now seen corresponding path program 1 times [2022-12-13 14:17:18,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 14:17:18,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2085648471] [2022-12-13 14:17:18,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:17:18,478 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 [2022-12-13 14:17:18,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 14:17:18,479 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -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) [2022-12-13 14:17:18,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -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 [2022-12-13 14:17:18,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:17:18,589 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 20 conjunts are in the unsatisfiable core [2022-12-13 14:17:18,592 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:17:18,600 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-12-13 14:17:18,606 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2022-12-13 14:17:18,624 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-13 14:17:18,633 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-13 14:17:18,751 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-12-13 14:17:18,751 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 45 [2022-12-13 14:17:18,757 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 22 treesize of output 24 [2022-12-13 14:17:18,829 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2022-12-13 14:17:18,834 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 19 treesize of output 7 [2022-12-13 14:17:18,854 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:17:18,855 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 14:17:19,115 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse1 (bvmul c_create_data_~counter~0 (_ bv4 32))) (.cse2 (bvadd (_ bv4 32) c_create_data_~data~0.offset))) (and (forall ((v_ArrVal_223 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$.offset| |c_create_data_#t~mem9.base| v_ArrVal_223) c_create_data_~data~0.base) .cse2))) (bvule (bvadd .cse0 (_ bv4 32) .cse1) (bvadd .cse0 (_ bv8 32) .cse1)))) (forall ((v_ArrVal_223 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_224 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| |c_create_data_#t~mem9.base| v_ArrVal_223) c_create_data_~data~0.base) .cse2) (_ bv8 32) .cse1) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_create_data_#t~mem9.base| v_ArrVal_224) c_create_data_~data~0.base) .cse2)))))) is different from false [2022-12-13 14:17:19,154 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv4 32) c_create_data_~data~0.offset))) (let ((.cse2 (bvmul c_create_data_~counter~0 (_ bv4 32))) (.cse0 (select (select |c_#memory_$Pointer$.base| c_create_data_~data~0.base) .cse1))) (and (forall ((v_ArrVal_223 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_224 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv8 32) (select (select (store |c_#memory_$Pointer$.offset| .cse0 v_ArrVal_223) c_create_data_~data~0.base) .cse1) .cse2) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_224) c_create_data_~data~0.base) .cse1)))) (forall ((v_ArrVal_223 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (select (select (store |c_#memory_$Pointer$.offset| .cse0 v_ArrVal_223) c_create_data_~data~0.base) .cse1))) (bvule (bvadd (_ bv4 32) .cse3 .cse2) (bvadd (_ bv8 32) .cse3 .cse2))))))) is different from false [2022-12-13 14:17:19,203 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv4 32) c_create_data_~data~0.offset))) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| c_create_data_~data~0.base) .cse1))) (and (forall ((v_ArrVal_223 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_224 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv8 32) (select (select (store |c_#memory_$Pointer$.offset| .cse0 v_ArrVal_223) c_create_data_~data~0.base) .cse1)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_224) c_create_data_~data~0.base) .cse1)))) (forall ((v_ArrVal_223 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (select (select (store |c_#memory_$Pointer$.offset| .cse0 v_ArrVal_223) c_create_data_~data~0.base) .cse1))) (bvule (bvadd (_ bv4 32) .cse2) (bvadd (_ bv8 32) .cse2))))))) is different from false [2022-12-13 14:17:19,218 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 14:17:19,218 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 46 [2022-12-13 14:17:19,227 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 14:17:19,228 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 36 [2022-12-13 14:17:19,233 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 50 [2022-12-13 14:17:19,236 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 78 [2022-12-13 14:17:19,244 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 32 [2022-12-13 14:17:19,247 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 58 [2022-12-13 14:17:19,367 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 14:17:19,368 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 36 [2022-12-13 14:17:19,374 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 36 [2022-12-13 14:17:19,449 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 3 not checked. [2022-12-13 14:17:19,449 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 14:17:19,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2085648471] [2022-12-13 14:17:19,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2085648471] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 14:17:19,450 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 14:17:19,450 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 14 [2022-12-13 14:17:19,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152333122] [2022-12-13 14:17:19,450 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 14:17:19,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-13 14:17:19,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 14:17:19,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-13 14:17:19,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=102, Unknown=3, NotChecked=66, Total=210 [2022-12-13 14:17:19,451 INFO L87 Difference]: Start difference. First operand 224 states and 263 transitions. Second operand has 15 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 15 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:17:22,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:17:22,180 INFO L93 Difference]: Finished difference Result 236 states and 275 transitions. [2022-12-13 14:17:22,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 14:17:22,181 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 15 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-12-13 14:17:22,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:17:22,182 INFO L225 Difference]: With dead ends: 236 [2022-12-13 14:17:22,182 INFO L226 Difference]: Without dead ends: 236 [2022-12-13 14:17:22,183 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=68, Invalid=181, Unknown=3, NotChecked=90, Total=342 [2022-12-13 14:17:22,183 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 6 mSDsluCounter, 755 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 2 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 917 SdHoareTripleChecker+Invalid, 777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 262 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-12-13 14:17:22,183 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 917 Invalid, 777 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 502 Invalid, 11 Unknown, 262 Unchecked, 2.2s Time] [2022-12-13 14:17:22,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2022-12-13 14:17:22,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 234. [2022-12-13 14:17:22,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 170 states have (on average 1.5823529411764705) internal successors, (269), 229 states have internal predecessors, (269), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 14:17:22,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 273 transitions. [2022-12-13 14:17:22,189 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 273 transitions. Word has length 22 [2022-12-13 14:17:22,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:17:22,189 INFO L495 AbstractCegarLoop]: Abstraction has 234 states and 273 transitions. [2022-12-13 14:17:22,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 15 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:17:22,189 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 273 transitions. [2022-12-13 14:17:22,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-12-13 14:17:22,190 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:17:22,190 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:17:22,198 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2022-12-13 14:17:22,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 14:17:22,391 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting create_dataErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [create_dataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 89 more)] === [2022-12-13 14:17:22,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:17:22,393 INFO L85 PathProgramCache]: Analyzing trace with hash 767728924, now seen corresponding path program 2 times [2022-12-13 14:17:22,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 14:17:22,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [461450621] [2022-12-13 14:17:22,395 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 14:17:22,395 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 [2022-12-13 14:17:22,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 14:17:22,399 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -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) [2022-12-13 14:17:22,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -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 [2022-12-13 14:17:22,686 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 14:17:22,686 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 14:17:22,694 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 23 conjunts are in the unsatisfiable core [2022-12-13 14:17:22,698 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:17:22,714 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-13 14:17:22,714 INFO L350 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 1 case distinctions, treesize of input 9 treesize of output 15 [2022-12-13 14:17:22,719 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-12-13 14:17:22,735 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-13 14:17:22,744 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-13 14:17:22,869 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-12-13 14:17:22,870 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 45 [2022-12-13 14:17:22,878 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 22 treesize of output 24 [2022-12-13 14:17:23,007 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-12-13 14:17:23,007 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 45 [2022-12-13 14:17:23,013 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 22 treesize of output 24 [2022-12-13 14:17:23,107 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2022-12-13 14:17:23,113 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 19 treesize of output 7 [2022-12-13 14:17:23,135 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:17:23,135 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 14:17:23,442 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse1 (bvmul c_create_data_~counter~0 (_ bv4 32))) (.cse2 (bvadd (_ bv4 32) c_create_data_~data~0.offset))) (and (forall ((v_ArrVal_286 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$.offset| |c_create_data_#t~mem9.base| v_ArrVal_286) c_create_data_~data~0.base) .cse2))) (bvule (bvadd (_ bv4 32) .cse0 .cse1) (bvadd .cse0 (_ bv8 32) .cse1)))) (forall ((v_ArrVal_285 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_286 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| |c_create_data_#t~mem9.base| v_ArrVal_286) c_create_data_~data~0.base) .cse2) (_ bv8 32) .cse1) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_create_data_#t~mem9.base| v_ArrVal_285) c_create_data_~data~0.base) .cse2)))))) is different from false [2022-12-13 14:17:23,479 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse3 (bvadd (_ bv4 32) c_create_data_~data~0.offset))) (let ((.cse1 (bvmul c_create_data_~counter~0 (_ bv4 32))) (.cse2 (select (select |c_#memory_$Pointer$.base| c_create_data_~data~0.base) .cse3))) (and (forall ((v_ArrVal_286 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$.offset| .cse2 v_ArrVal_286) c_create_data_~data~0.base) .cse3))) (bvule (bvadd (_ bv4 32) .cse0 .cse1) (bvadd (_ bv8 32) .cse0 .cse1)))) (forall ((v_ArrVal_285 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_286 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv8 32) (select (select (store |c_#memory_$Pointer$.offset| .cse2 v_ArrVal_286) c_create_data_~data~0.base) .cse3) .cse1) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| .cse2 v_ArrVal_285) c_create_data_~data~0.base) .cse3))))))) is different from false [2022-12-13 14:17:23,534 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse3 (bvadd (_ bv4 32) c_create_data_~data~0.offset))) (let ((.cse1 (bvmul c_create_data_~counter~0 (_ bv4 32))) (.cse2 (select (select |c_#memory_$Pointer$.base| c_create_data_~data~0.base) .cse3))) (and (forall ((v_ArrVal_286 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$.offset| .cse2 v_ArrVal_286) c_create_data_~data~0.base) .cse3))) (bvule (bvadd (_ bv8 32) .cse0 .cse1) (bvadd .cse0 .cse1 (_ bv12 32))))) (forall ((v_ArrVal_285 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_286 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| .cse2 v_ArrVal_286) c_create_data_~data~0.base) .cse3) .cse1 (_ bv12 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| .cse2 v_ArrVal_285) c_create_data_~data~0.base) .cse3))))))) is different from false [2022-12-13 14:17:23,612 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse1 (bvmul c_create_data_~counter~0 (_ bv4 32))) (.cse2 (bvadd (_ bv4 32) c_create_data_~data~0.offset))) (and (forall ((v_ArrVal_284 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_286 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_283 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store (store |c_#memory_$Pointer$.offset| |c_create_data_#t~mem9.base| v_ArrVal_283) (select (select (store |c_#memory_$Pointer$.base| |c_create_data_#t~mem9.base| v_ArrVal_284) c_create_data_~data~0.base) .cse2) v_ArrVal_286) c_create_data_~data~0.base) .cse2))) (bvule (bvadd .cse0 (_ bv8 32) .cse1) (bvadd .cse0 .cse1 (_ bv12 32))))) (forall ((v_ArrVal_284 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_285 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_286 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_283 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (store |c_#memory_$Pointer$.base| |c_create_data_#t~mem9.base| v_ArrVal_284))) (let ((.cse3 (select (select .cse4 c_create_data_~data~0.base) .cse2))) (bvule (bvadd (select (select (store (store |c_#memory_$Pointer$.offset| |c_create_data_#t~mem9.base| v_ArrVal_283) .cse3 v_ArrVal_286) c_create_data_~data~0.base) .cse2) .cse1 (_ bv12 32)) (select |c_#length| (select (select (store .cse4 .cse3 v_ArrVal_285) c_create_data_~data~0.base) .cse2)))))))) is different from false [2022-12-13 14:17:23,977 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv4 32) c_create_data_~data~0.offset))) (let ((.cse1 (select (select |c_#memory_$Pointer$.base| c_create_data_~data~0.base) .cse2))) (and (forall ((v_ArrVal_284 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_286 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_283 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store (store |c_#memory_$Pointer$.offset| .cse1 v_ArrVal_283) (select (select (store |c_#memory_$Pointer$.base| .cse1 v_ArrVal_284) c_create_data_~data~0.base) .cse2) v_ArrVal_286) c_create_data_~data~0.base) .cse2))) (bvule (bvadd .cse0 (_ bv8 32)) (bvadd .cse0 (_ bv12 32))))) (forall ((v_ArrVal_284 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_285 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_286 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_283 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (store |c_#memory_$Pointer$.base| .cse1 v_ArrVal_284))) (let ((.cse3 (select (select .cse4 c_create_data_~data~0.base) .cse2))) (bvule (bvadd (select (select (store (store |c_#memory_$Pointer$.offset| .cse1 v_ArrVal_283) .cse3 v_ArrVal_286) c_create_data_~data~0.base) .cse2) (_ bv12 32)) (select |c_#length| (select (select (store .cse4 .cse3 v_ArrVal_285) c_create_data_~data~0.base) .cse2))))))))) is different from false [2022-12-13 14:17:23,994 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 14:17:23,994 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 89 treesize of output 90 [2022-12-13 14:17:24,007 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 14:17:24,007 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 79 treesize of output 60 [2022-12-13 14:17:24,014 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 754 treesize of output 640 [2022-12-13 14:17:24,026 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1360 treesize of output 1258 [2022-12-13 14:17:24,048 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1254 treesize of output 1158 [2022-12-13 14:17:24,059 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1158 treesize of output 958 [2022-12-13 14:17:24,070 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 958 treesize of output 862 [2022-12-13 14:17:24,078 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 862 treesize of output 830 [2022-12-13 14:17:34,923 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 14:17:34,923 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 89 treesize of output 80 [2022-12-13 14:17:34,939 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 14:17:34,939 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 69 treesize of output 60 [2022-12-13 14:17:34,948 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 84 [2022-12-13 14:17:34,954 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 174 treesize of output 144 [2022-12-13 14:17:34,965 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 86 [2022-12-13 14:17:34,970 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 124 treesize of output 100 [2022-12-13 14:17:34,982 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 62 [2022-12-13 14:17:35,528 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 9 not checked. [2022-12-13 14:17:35,528 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 14:17:35,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [461450621] [2022-12-13 14:17:35,529 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [461450621] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 14:17:35,529 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 14:17:35,529 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11] total 19 [2022-12-13 14:17:35,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215410400] [2022-12-13 14:17:35,529 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 14:17:35,529 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-12-13 14:17:35,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 14:17:35,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-12-13 14:17:35,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=160, Unknown=9, NotChecked=150, Total=380 [2022-12-13 14:17:35,530 INFO L87 Difference]: Start difference. First operand 234 states and 273 transitions. Second operand has 20 states, 19 states have (on average 2.210526315789474) internal successors, (42), 20 states have internal predecessors, (42), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:17:38,511 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse3 (bvadd (_ bv4 32) c_create_data_~data~0.offset))) (let ((.cse4 (select (select |c_#memory_$Pointer$.offset| c_create_data_~data~0.base) .cse3)) (.cse1 (bvmul c_create_data_~counter~0 (_ bv4 32)))) (let ((.cse5 (bvadd (_ bv8 32) .cse4 .cse1)) (.cse2 (select (select |c_#memory_$Pointer$.base| c_create_data_~data~0.base) .cse3))) (and (forall ((v_ArrVal_286 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$.offset| .cse2 v_ArrVal_286) c_create_data_~data~0.base) .cse3))) (bvule (bvadd (_ bv8 32) .cse0 .cse1) (bvadd .cse0 .cse1 (_ bv12 32))))) (bvule (bvadd (_ bv4 32) .cse4 .cse1) .cse5) (forall ((v_ArrVal_285 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_286 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| .cse2 v_ArrVal_286) c_create_data_~data~0.base) .cse3) .cse1 (_ bv12 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| .cse2 v_ArrVal_285) c_create_data_~data~0.base) .cse3)))) (bvule .cse5 (select |c_#length| .cse2)))))) is different from false [2022-12-13 14:17:38,529 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse4 (bvadd (_ bv4 32) c_create_data_~data~0.offset))) (let ((.cse5 (select (select |c_#memory_$Pointer$.offset| c_create_data_~data~0.base) .cse4)) (.cse3 (bvmul c_create_data_~counter~0 (_ bv4 32)))) (let ((.cse1 (select (select |c_#memory_$Pointer$.base| c_create_data_~data~0.base) .cse4)) (.cse0 (bvadd (_ bv4 32) .cse5 .cse3))) (and (bvule .cse0 (select |c_#length| .cse1)) (forall ((v_ArrVal_286 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (select (select (store |c_#memory_$Pointer$.offset| .cse1 v_ArrVal_286) c_create_data_~data~0.base) .cse4))) (bvule (bvadd (_ bv4 32) .cse2 .cse3) (bvadd (_ bv8 32) .cse2 .cse3)))) (forall ((v_ArrVal_285 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_286 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv8 32) (select (select (store |c_#memory_$Pointer$.offset| .cse1 v_ArrVal_286) c_create_data_~data~0.base) .cse4) .cse3) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| .cse1 v_ArrVal_285) c_create_data_~data~0.base) .cse4)))) (bvule (bvadd .cse5 .cse3) .cse0))))) is different from false [2022-12-13 14:17:38,685 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse1 (bvmul c_create_data_~counter~0 (_ bv4 32)))) (let ((.cse0 (bvadd (_ bv4 32) |c_create_data_#t~mem9.offset| .cse1)) (.cse3 (bvadd (_ bv4 32) c_create_data_~data~0.offset))) (and (bvule .cse0 (select |c_#length| |c_create_data_#t~mem9.base|)) (bvule (bvadd |c_create_data_#t~mem9.offset| .cse1) .cse0) (forall ((v_ArrVal_286 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (select (select (store |c_#memory_$Pointer$.offset| |c_create_data_#t~mem9.base| v_ArrVal_286) c_create_data_~data~0.base) .cse3))) (bvule (bvadd (_ bv4 32) .cse2 .cse1) (bvadd .cse2 (_ bv8 32) .cse1)))) (forall ((v_ArrVal_285 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_286 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| |c_create_data_#t~mem9.base| v_ArrVal_286) c_create_data_~data~0.base) .cse3) (_ bv8 32) .cse1) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_create_data_#t~mem9.base| v_ArrVal_285) c_create_data_~data~0.base) .cse3))))))) is different from false [2022-12-13 14:17:43,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:17:43,173 INFO L93 Difference]: Finished difference Result 304 states and 355 transitions. [2022-12-13 14:17:43,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-13 14:17:43,175 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 2.210526315789474) internal successors, (42), 20 states have internal predecessors, (42), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-12-13 14:17:43,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:17:43,176 INFO L225 Difference]: With dead ends: 304 [2022-12-13 14:17:43,176 INFO L226 Difference]: Without dead ends: 304 [2022-12-13 14:17:43,176 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 34 SyntacticMatches, 6 SemanticMatches, 26 ConstructedPredicates, 8 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=106, Invalid=294, Unknown=12, NotChecked=344, Total=756 [2022-12-13 14:17:43,177 INFO L413 NwaCegarLoop]: 177 mSDtfsCounter, 27 mSDsluCounter, 1284 mSDsCounter, 0 mSdLazyCounter, 897 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 1461 SdHoareTripleChecker+Invalid, 1487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 897 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 582 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-12-13 14:17:43,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 1461 Invalid, 1487 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 897 Invalid, 1 Unknown, 582 Unchecked, 5.4s Time] [2022-12-13 14:17:43,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2022-12-13 14:17:43,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 264. [2022-12-13 14:17:43,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 200 states have (on average 1.515) internal successors, (303), 259 states have internal predecessors, (303), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 14:17:43,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 307 transitions. [2022-12-13 14:17:43,181 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 307 transitions. Word has length 27 [2022-12-13 14:17:43,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:17:43,181 INFO L495 AbstractCegarLoop]: Abstraction has 264 states and 307 transitions. [2022-12-13 14:17:43,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 2.210526315789474) internal successors, (42), 20 states have internal predecessors, (42), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:17:43,181 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 307 transitions. [2022-12-13 14:17:43,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-12-13 14:17:43,182 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:17:43,182 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:17:43,190 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -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)] Ended with exit code 0 [2022-12-13 14:17:43,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 14:17:43,384 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting create_dataErr24REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [create_dataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 89 more)] === [2022-12-13 14:17:43,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:17:43,385 INFO L85 PathProgramCache]: Analyzing trace with hash -1939829061, now seen corresponding path program 1 times [2022-12-13 14:17:43,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 14:17:43,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [199724101] [2022-12-13 14:17:43,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:17:43,388 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 [2022-12-13 14:17:43,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 14:17:43,391 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -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) [2022-12-13 14:17:43,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -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 [2022-12-13 14:17:43,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:17:43,528 INFO L263 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 14:17:43,529 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:17:43,535 INFO L350 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 [2022-12-13 14:17:43,540 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-13 14:17:43,540 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 14:17:43,541 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 14:17:43,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [199724101] [2022-12-13 14:17:43,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [199724101] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:17:43,541 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:17:43,541 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 14:17:43,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698057777] [2022-12-13 14:17:43,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:17:43,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 14:17:43,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 14:17:43,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 14:17:43,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 14:17:43,542 INFO L87 Difference]: Start difference. First operand 264 states and 307 transitions. Second operand has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:17:43,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:17:43,756 INFO L93 Difference]: Finished difference Result 266 states and 301 transitions. [2022-12-13 14:17:43,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 14:17:43,757 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2022-12-13 14:17:43,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:17:43,757 INFO L225 Difference]: With dead ends: 266 [2022-12-13 14:17:43,758 INFO L226 Difference]: Without dead ends: 266 [2022-12-13 14:17:43,758 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 14:17:43,758 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 22 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 14:17:43,758 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 235 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 14:17:43,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2022-12-13 14:17:43,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 260. [2022-12-13 14:17:43,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 200 states have (on average 1.455) internal successors, (291), 255 states have internal predecessors, (291), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 14:17:43,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 295 transitions. [2022-12-13 14:17:43,762 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 295 transitions. Word has length 41 [2022-12-13 14:17:43,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:17:43,762 INFO L495 AbstractCegarLoop]: Abstraction has 260 states and 295 transitions. [2022-12-13 14:17:43,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:17:43,762 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 295 transitions. [2022-12-13 14:17:43,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-12-13 14:17:43,763 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:17:43,763 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:17:43,775 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Ended with exit code 0 [2022-12-13 14:17:43,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 14:17:43,964 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting create_dataErr25REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [create_dataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 89 more)] === [2022-12-13 14:17:43,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:17:43,965 INFO L85 PathProgramCache]: Analyzing trace with hash -1939829060, now seen corresponding path program 1 times [2022-12-13 14:17:43,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 14:17:43,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [743288366] [2022-12-13 14:17:43,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:17:43,968 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 [2022-12-13 14:17:43,968 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 14:17:43,971 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -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) [2022-12-13 14:17:43,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-12-13 14:17:44,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:17:44,146 INFO L263 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 14:17:44,147 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:17:44,152 INFO L350 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 [2022-12-13 14:17:44,162 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-13 14:17:44,163 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 14:17:44,163 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 14:17:44,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [743288366] [2022-12-13 14:17:44,163 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [743288366] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:17:44,163 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:17:44,163 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 14:17:44,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487270053] [2022-12-13 14:17:44,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:17:44,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 14:17:44,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 14:17:44,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 14:17:44,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 14:17:44,165 INFO L87 Difference]: Start difference. First operand 260 states and 295 transitions. Second operand has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:17:44,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:17:44,445 INFO L93 Difference]: Finished difference Result 262 states and 289 transitions. [2022-12-13 14:17:44,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 14:17:44,445 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2022-12-13 14:17:44,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:17:44,447 INFO L225 Difference]: With dead ends: 262 [2022-12-13 14:17:44,447 INFO L226 Difference]: Without dead ends: 262 [2022-12-13 14:17:44,447 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 14:17:44,448 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 18 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 14:17:44,448 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 233 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 14:17:44,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2022-12-13 14:17:44,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 256. [2022-12-13 14:17:44,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 200 states have (on average 1.395) internal successors, (279), 251 states have internal predecessors, (279), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 14:17:44,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 283 transitions. [2022-12-13 14:17:44,454 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 283 transitions. Word has length 41 [2022-12-13 14:17:44,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:17:44,454 INFO L495 AbstractCegarLoop]: Abstraction has 256 states and 283 transitions. [2022-12-13 14:17:44,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:17:44,454 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 283 transitions. [2022-12-13 14:17:44,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-12-13 14:17:44,455 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:17:44,455 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:17:44,463 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Ended with exit code 0 [2022-12-13 14:17:44,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 14:17:44,656 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting create_dataErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [create_dataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 89 more)] === [2022-12-13 14:17:44,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:17:44,658 INFO L85 PathProgramCache]: Analyzing trace with hash 1997336807, now seen corresponding path program 3 times [2022-12-13 14:17:44,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 14:17:44,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1176937727] [2022-12-13 14:17:44,659 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 14:17:44,660 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 [2022-12-13 14:17:44,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 14:17:44,663 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -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) [2022-12-13 14:17:44,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-12-13 14:17:45,128 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2022-12-13 14:17:45,128 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 14:17:45,142 INFO L263 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 14:17:45,143 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:17:45,186 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 38 proven. 18 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-13 14:17:45,187 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 14:17:45,279 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 38 proven. 18 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-13 14:17:45,279 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 14:17:45,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1176937727] [2022-12-13 14:17:45,279 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1176937727] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 14:17:45,279 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 14:17:45,279 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-12-13 14:17:45,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519371806] [2022-12-13 14:17:45,280 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 14:17:45,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 14:17:45,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 14:17:45,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 14:17:45,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-12-13 14:17:45,281 INFO L87 Difference]: Start difference. First operand 256 states and 283 transitions. Second operand has 10 states, 10 states have (on average 5.2) internal successors, (52), 10 states have internal predecessors, (52), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:17:45,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:17:45,383 INFO L93 Difference]: Finished difference Result 233 states and 253 transitions. [2022-12-13 14:17:45,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 14:17:45,383 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.2) internal successors, (52), 10 states have internal predecessors, (52), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2022-12-13 14:17:45,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:17:45,384 INFO L225 Difference]: With dead ends: 233 [2022-12-13 14:17:45,385 INFO L226 Difference]: Without dead ends: 233 [2022-12-13 14:17:45,385 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-12-13 14:17:45,385 INFO L413 NwaCegarLoop]: 158 mSDtfsCounter, 156 mSDsluCounter, 818 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 976 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 14:17:45,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 976 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 14:17:45,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2022-12-13 14:17:45,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 231. [2022-12-13 14:17:45,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 176 states have (on average 1.4034090909090908) internal successors, (247), 226 states have internal predecessors, (247), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 14:17:45,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 251 transitions. [2022-12-13 14:17:45,391 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 251 transitions. Word has length 42 [2022-12-13 14:17:45,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:17:45,391 INFO L495 AbstractCegarLoop]: Abstraction has 231 states and 251 transitions. [2022-12-13 14:17:45,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.2) internal successors, (52), 10 states have internal predecessors, (52), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:17:45,391 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 251 transitions. [2022-12-13 14:17:45,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-12-13 14:17:45,392 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:17:45,392 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:17:45,402 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Ended with exit code 0 [2022-12-13 14:17:45,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 14:17:45,593 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [create_dataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 89 more)] === [2022-12-13 14:17:45,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:17:45,593 INFO L85 PathProgramCache]: Analyzing trace with hash -663465002, now seen corresponding path program 1 times [2022-12-13 14:17:45,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 14:17:45,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [858074543] [2022-12-13 14:17:45,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:17:45,594 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 [2022-12-13 14:17:45,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 14:17:45,595 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -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) [2022-12-13 14:17:45,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-12-13 14:17:45,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:17:45,809 INFO L263 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-13 14:17:45,812 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:17:45,814 INFO L350 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 [2022-12-13 14:17:45,850 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-13 14:17:45,891 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 9 [2022-12-13 14:17:46,101 INFO L321 Elim1Store]: treesize reduction 52, result has 30.7 percent of original size [2022-12-13 14:17:46,101 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 38 [2022-12-13 14:17:46,112 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-12-13 14:17:46,113 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 14:17:47,614 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-13 14:17:47,614 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 14:17:47,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [858074543] [2022-12-13 14:17:47,615 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [858074543] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-13 14:17:47,615 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 14:17:47,615 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2022-12-13 14:17:47,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335130028] [2022-12-13 14:17:47,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:17:47,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 14:17:47,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 14:17:47,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 14:17:47,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-12-13 14:17:47,617 INFO L87 Difference]: Start difference. First operand 231 states and 251 transitions. Second operand has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 14:17:48,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:17:48,067 INFO L93 Difference]: Finished difference Result 254 states and 275 transitions. [2022-12-13 14:17:48,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 14:17:48,067 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), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 44 [2022-12-13 14:17:48,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:17:48,069 INFO L225 Difference]: With dead ends: 254 [2022-12-13 14:17:48,069 INFO L226 Difference]: Without dead ends: 254 [2022-12-13 14:17:48,069 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 77 SyntacticMatches, 3 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-12-13 14:17:48,070 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 97 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-13 14:17:48,070 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 201 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-13 14:17:48,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2022-12-13 14:17:48,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 229. [2022-12-13 14:17:48,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 176 states have (on average 1.3920454545454546) internal successors, (245), 224 states have internal predecessors, (245), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 14:17:48,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 249 transitions. [2022-12-13 14:17:48,074 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 249 transitions. Word has length 44 [2022-12-13 14:17:48,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:17:48,074 INFO L495 AbstractCegarLoop]: Abstraction has 229 states and 249 transitions. [2022-12-13 14:17:48,074 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), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 14:17:48,074 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 249 transitions. [2022-12-13 14:17:48,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-12-13 14:17:48,074 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:17:48,075 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:17:48,084 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Ended with exit code 0 [2022-12-13 14:17:48,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 14:17:48,275 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [create_dataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 89 more)] === [2022-12-13 14:17:48,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:17:48,276 INFO L85 PathProgramCache]: Analyzing trace with hash -663465001, now seen corresponding path program 1 times [2022-12-13 14:17:48,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 14:17:48,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [104574128] [2022-12-13 14:17:48,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:17:48,276 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 [2022-12-13 14:17:48,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 14:17:48,277 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -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) [2022-12-13 14:17:48,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2022-12-13 14:17:48,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:17:48,532 INFO L263 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 17 conjunts are in the unsatisfiable core [2022-12-13 14:17:48,534 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:17:48,538 INFO L350 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 [2022-12-13 14:17:48,543 INFO L350 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 [2022-12-13 14:17:48,638 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-13 14:17:48,687 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 9 [2022-12-13 14:17:48,697 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_811 (_ BitVec 32)) (create_data_~data~0.base (_ BitVec 32)) (v_arrayElimCell_51 (_ BitVec 32))) (and (= (select |c_old(#valid)| create_data_~data~0.base) (_ bv0 1)) (= |c_#length| (store (store |c_old(#length)| create_data_~data~0.base v_ArrVal_811) v_arrayElimCell_51 (_ bv80 32))))) is different from true [2022-12-13 14:17:48,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:17:48,916 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-12-13 14:17:48,917 INFO L350 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 2 case distinctions, treesize of input 15 treesize of output 27 [2022-12-13 14:17:48,931 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-12-13 14:17:48,932 INFO L350 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 [2022-12-13 14:17:48,974 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 5 not checked. [2022-12-13 14:17:48,974 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 14:17:49,241 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 14:17:49,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [104574128] [2022-12-13 14:17:49,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [104574128] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 14:17:49,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1662976883] [2022-12-13 14:17:49,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:17:49,242 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-13 14:17:49,242 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/cvc4 [2022-12-13 14:17:49,243 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-13 14:17:49,244 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process [2022-12-13 14:17:49,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:17:49,792 INFO L263 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 17 conjunts are in the unsatisfiable core [2022-12-13 14:17:49,794 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:17:49,823 INFO L350 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 [2022-12-13 14:17:49,828 INFO L350 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 [2022-12-13 14:17:49,872 WARN L859 $PredicateComparison]: unable to prove that (exists ((create_data_~data~0.base (_ BitVec 32))) (and (= (select |c_old(#valid)| create_data_~data~0.base) (_ bv0 1)) (exists ((v_ArrVal_927 (_ BitVec 32))) (= (store (store |c_old(#length)| create_data_~data~0.base v_ArrVal_927) |c_create_data_#t~malloc7.base| (_ bv80 32)) |c_#length|)))) is different from true [2022-12-13 14:17:49,880 WARN L859 $PredicateComparison]: unable to prove that (exists ((create_data_~data~0.base (_ BitVec 32)) (|create_data_#t~malloc7.base| (_ BitVec 32)) (v_ArrVal_927 (_ BitVec 32))) (and (= (select |c_old(#valid)| create_data_~data~0.base) (_ bv0 1)) (= (store (store |c_old(#length)| create_data_~data~0.base v_ArrVal_927) |create_data_#t~malloc7.base| (_ bv80 32)) |c_#length|))) is different from true [2022-12-13 14:17:50,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:17:50,109 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-12-13 14:17:50,109 INFO L350 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 2 case distinctions, treesize of input 15 treesize of output 27 [2022-12-13 14:17:50,125 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-12-13 14:17:50,125 INFO L350 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 [2022-12-13 14:17:50,153 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-13 14:17:50,153 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 14:17:50,153 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1662976883] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:17:50,153 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 14:17:50,153 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 10 [2022-12-13 14:17:50,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731004200] [2022-12-13 14:17:50,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:17:50,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 14:17:50,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 14:17:50,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 14:17:50,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=73, Unknown=3, NotChecked=54, Total=156 [2022-12-13 14:17:50,155 INFO L87 Difference]: Start difference. First operand 229 states and 249 transitions. Second operand has 8 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 14:17:51,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:17:51,138 INFO L93 Difference]: Finished difference Result 377 states and 412 transitions. [2022-12-13 14:17:51,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 14:17:51,139 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 44 [2022-12-13 14:17:51,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:17:51,140 INFO L225 Difference]: With dead ends: 377 [2022-12-13 14:17:51,140 INFO L226 Difference]: Without dead ends: 377 [2022-12-13 14:17:51,141 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 76 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=32, Invalid=87, Unknown=3, NotChecked=60, Total=182 [2022-12-13 14:17:51,141 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 148 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 424 SdHoareTripleChecker+Invalid, 974 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 493 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-13 14:17:51,141 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 424 Invalid, 974 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 476 Invalid, 0 Unknown, 493 Unchecked, 1.0s Time] [2022-12-13 14:17:51,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2022-12-13 14:17:51,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 244. [2022-12-13 14:17:51,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 189 states have (on average 1.3862433862433863) internal successors, (262), 237 states have internal predecessors, (262), 2 states have call successors, (2), 2 states have call predecessors, (2), 4 states have return successors, (4), 4 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-13 14:17:51,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 268 transitions. [2022-12-13 14:17:51,145 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 268 transitions. Word has length 44 [2022-12-13 14:17:51,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:17:51,145 INFO L495 AbstractCegarLoop]: Abstraction has 244 states and 268 transitions. [2022-12-13 14:17:51,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 14:17:51,145 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 268 transitions. [2022-12-13 14:17:51,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-12-13 14:17:51,146 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:17:51,146 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:17:51,151 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (21)] Ended with exit code 0 [2022-12-13 14:17:51,362 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Ended with exit code 0 [2022-12-13 14:17:51,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 14:17:51,548 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [create_dataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 89 more)] === [2022-12-13 14:17:51,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:17:51,549 INFO L85 PathProgramCache]: Analyzing trace with hash -1359492876, now seen corresponding path program 1 times [2022-12-13 14:17:51,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 14:17:51,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2141791131] [2022-12-13 14:17:51,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:17:51,552 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 [2022-12-13 14:17:51,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 14:17:51,553 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -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) [2022-12-13 14:17:51,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2022-12-13 14:17:51,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:17:51,790 INFO L263 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-13 14:17:51,792 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:17:51,796 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-13 14:17:51,796 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-13 14:17:51,797 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-13 14:17:51,799 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2022-12-13 14:17:51,876 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 14:17:51,876 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2022-12-13 14:17:51,901 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-13 14:17:51,902 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 14:17:51,902 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 14:17:51,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2141791131] [2022-12-13 14:17:51,902 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2141791131] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:17:51,902 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:17:51,902 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 14:17:51,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628847450] [2022-12-13 14:17:51,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:17:51,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 14:17:51,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 14:17:51,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 14:17:51,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 14:17:51,904 INFO L87 Difference]: Start difference. First operand 244 states and 268 transitions. Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 14:17:52,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:17:52,284 INFO L93 Difference]: Finished difference Result 286 states and 318 transitions. [2022-12-13 14:17:52,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 14:17:52,285 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 46 [2022-12-13 14:17:52,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:17:52,286 INFO L225 Difference]: With dead ends: 286 [2022-12-13 14:17:52,286 INFO L226 Difference]: Without dead ends: 286 [2022-12-13 14:17:52,286 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-12-13 14:17:52,286 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 28 mSDsluCounter, 546 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 696 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 14:17:52,286 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 696 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 14:17:52,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2022-12-13 14:17:52,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 254. [2022-12-13 14:17:52,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 199 states have (on average 1.3718592964824121) internal successors, (273), 247 states have internal predecessors, (273), 2 states have call successors, (2), 2 states have call predecessors, (2), 4 states have return successors, (4), 4 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-13 14:17:52,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 279 transitions. [2022-12-13 14:17:52,290 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 279 transitions. Word has length 46 [2022-12-13 14:17:52,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:17:52,290 INFO L495 AbstractCegarLoop]: Abstraction has 254 states and 279 transitions. [2022-12-13 14:17:52,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 14:17:52,290 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 279 transitions. [2022-12-13 14:17:52,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-12-13 14:17:52,291 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:17:52,291 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:17:52,300 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Ended with exit code 0 [2022-12-13 14:17:52,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 14:17:52,492 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [create_dataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 89 more)] === [2022-12-13 14:17:52,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:17:52,493 INFO L85 PathProgramCache]: Analyzing trace with hash 918765396, now seen corresponding path program 1 times [2022-12-13 14:17:52,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 14:17:52,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [580096480] [2022-12-13 14:17:52,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:17:52,495 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 [2022-12-13 14:17:52,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 14:17:52,496 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -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) [2022-12-13 14:17:52,497 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2022-12-13 14:17:52,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:17:52,663 INFO L263 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 14:17:52,664 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:17:52,673 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-13 14:17:52,673 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 14:17:52,673 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 14:17:52,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [580096480] [2022-12-13 14:17:52,673 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [580096480] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:17:52,673 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:17:52,673 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 14:17:52,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183037058] [2022-12-13 14:17:52,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:17:52,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 14:17:52,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 14:17:52,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 14:17:52,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 14:17:52,675 INFO L87 Difference]: Start difference. First operand 254 states and 279 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 14:17:52,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:17:52,692 INFO L93 Difference]: Finished difference Result 262 states and 285 transitions. [2022-12-13 14:17:52,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 14:17:52,693 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 46 [2022-12-13 14:17:52,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:17:52,694 INFO L225 Difference]: With dead ends: 262 [2022-12-13 14:17:52,694 INFO L226 Difference]: Without dead ends: 262 [2022-12-13 14:17:52,695 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 14:17:52,695 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 3 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 449 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 14:17:52,696 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 449 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 14:17:52,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2022-12-13 14:17:52,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 260. [2022-12-13 14:17:52,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 205 states have (on average 1.351219512195122) internal successors, (277), 253 states have internal predecessors, (277), 2 states have call successors, (2), 2 states have call predecessors, (2), 4 states have return successors, (4), 4 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-13 14:17:52,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 283 transitions. [2022-12-13 14:17:52,699 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 283 transitions. Word has length 46 [2022-12-13 14:17:52,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:17:52,699 INFO L495 AbstractCegarLoop]: Abstraction has 260 states and 283 transitions. [2022-12-13 14:17:52,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 14:17:52,699 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 283 transitions. [2022-12-13 14:17:52,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-12-13 14:17:52,700 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:17:52,700 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:17:52,708 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Ended with exit code 0 [2022-12-13 14:17:52,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 14:17:52,901 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [create_dataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 89 more)] === [2022-12-13 14:17:52,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:17:52,902 INFO L85 PathProgramCache]: Analyzing trace with hash -1934703003, now seen corresponding path program 1 times [2022-12-13 14:17:52,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 14:17:52,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [409045775] [2022-12-13 14:17:52,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:17:52,904 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 [2022-12-13 14:17:52,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 14:17:52,907 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -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) [2022-12-13 14:17:52,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2022-12-13 14:17:53,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:17:53,156 INFO L263 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 14 conjunts are in the unsatisfiable core [2022-12-13 14:17:53,159 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:17:53,161 INFO L350 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 [2022-12-13 14:17:53,198 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-13 14:17:53,236 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 9 [2022-12-13 14:17:53,418 INFO L321 Elim1Store]: treesize reduction 56, result has 25.3 percent of original size [2022-12-13 14:17:53,418 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 34 [2022-12-13 14:17:53,465 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-12-13 14:17:53,465 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 14:17:59,579 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 14:17:59,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [409045775] [2022-12-13 14:17:59,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [409045775] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 14:17:59,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [718399442] [2022-12-13 14:17:59,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:17:59,579 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-13 14:17:59,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/cvc4 [2022-12-13 14:17:59,580 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-13 14:17:59,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (25)] Waiting until timeout for monitored process [2022-12-13 14:17:59,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:17:59,979 INFO L263 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-13 14:17:59,980 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:18:00,077 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2022-12-13 14:18:00,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:18:00,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:18:00,588 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-13 14:18:00,588 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 31 [2022-12-13 14:18:00,652 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-13 14:18:00,652 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 14:18:00,653 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [718399442] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:18:00,653 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 14:18:00,653 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 13 [2022-12-13 14:18:00,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315845812] [2022-12-13 14:18:00,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:18:00,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 14:18:00,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 14:18:00,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 14:18:00,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=170, Unknown=2, NotChecked=0, Total=210 [2022-12-13 14:18:00,654 INFO L87 Difference]: Start difference. First operand 260 states and 283 transitions. Second operand has 8 states, 7 states have (on average 4.857142857142857) internal successors, (34), 8 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 14:18:02,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:18:02,269 INFO L93 Difference]: Finished difference Result 346 states and 373 transitions. [2022-12-13 14:18:02,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 14:18:02,270 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.857142857142857) internal successors, (34), 8 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 46 [2022-12-13 14:18:02,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:18:02,271 INFO L225 Difference]: With dead ends: 346 [2022-12-13 14:18:02,271 INFO L226 Difference]: Without dead ends: 346 [2022-12-13 14:18:02,272 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=60, Invalid=244, Unknown=2, NotChecked=0, Total=306 [2022-12-13 14:18:02,272 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 509 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 18 mSolverCounterUnsat, 18 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 509 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 18 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-12-13 14:18:02,272 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [509 Valid, 374 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 392 Invalid, 18 Unknown, 0 Unchecked, 1.5s Time] [2022-12-13 14:18:02,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2022-12-13 14:18:02,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 271. [2022-12-13 14:18:02,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 214 states have (on average 1.3504672897196262) internal successors, (289), 262 states have internal predecessors, (289), 2 states have call successors, (2), 2 states have call predecessors, (2), 6 states have return successors, (6), 6 states have call predecessors, (6), 2 states have call successors, (6) [2022-12-13 14:18:02,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 297 transitions. [2022-12-13 14:18:02,276 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 297 transitions. Word has length 46 [2022-12-13 14:18:02,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:18:02,276 INFO L495 AbstractCegarLoop]: Abstraction has 271 states and 297 transitions. [2022-12-13 14:18:02,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.857142857142857) internal successors, (34), 8 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 14:18:02,276 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 297 transitions. [2022-12-13 14:18:02,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-12-13 14:18:02,277 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:18:02,277 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:18:02,281 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (25)] Forceful destruction successful, exit code 0 [2022-12-13 14:18:02,492 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Ended with exit code 0 [2022-12-13 14:18:02,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 14:18:02,679 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [create_dataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 89 more)] === [2022-12-13 14:18:02,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:18:02,680 INFO L85 PathProgramCache]: Analyzing trace with hash -1934703002, now seen corresponding path program 1 times [2022-12-13 14:18:02,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 14:18:02,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [941907861] [2022-12-13 14:18:02,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:18:02,682 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 [2022-12-13 14:18:02,682 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 14:18:02,683 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -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) [2022-12-13 14:18:02,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2022-12-13 14:18:02,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:18:02,956 INFO L263 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 18 conjunts are in the unsatisfiable core [2022-12-13 14:18:02,959 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:18:02,966 INFO L350 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 [2022-12-13 14:18:03,056 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-13 14:18:03,100 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 9 [2022-12-13 14:18:03,107 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_1477 (_ BitVec 32)) (v_arrayElimCell_67 (_ BitVec 32)) (create_data_~data~0.base (_ BitVec 32))) (and (= (select |c_old(#valid)| create_data_~data~0.base) (_ bv0 1)) (= (store (store |c_old(#length)| create_data_~data~0.base v_ArrVal_1477) v_arrayElimCell_67 (_ bv80 32)) |c_#length|))) is different from true [2022-12-13 14:18:03,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:18:03,280 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-12-13 14:18:03,281 INFO L350 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 2 case distinctions, treesize of input 17 treesize of output 29 [2022-12-13 14:18:03,293 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-12-13 14:18:03,293 INFO L350 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 [2022-12-13 14:18:03,344 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 5 not checked. [2022-12-13 14:18:03,345 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 14:18:03,572 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 14:18:03,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [941907861] [2022-12-13 14:18:03,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [941907861] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 14:18:03,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [434100638] [2022-12-13 14:18:03,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:18:03,573 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-13 14:18:03,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/cvc4 [2022-12-13 14:18:03,574 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-13 14:18:03,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (27)] Waiting until timeout for monitored process [2022-12-13 14:18:03,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:18:03,992 INFO L263 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 15 conjunts are in the unsatisfiable core [2022-12-13 14:18:03,994 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:18:04,000 INFO L350 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 [2022-12-13 14:18:04,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:18:04,044 INFO L350 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 12 treesize of output 14 [2022-12-13 14:18:04,227 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-13 14:18:04,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:18:04,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:18:04,810 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-13 14:18:04,810 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 28 [2022-12-13 14:18:04,944 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-13 14:18:04,944 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 14:18:04,945 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [434100638] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:18:04,945 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 14:18:04,945 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 15 [2022-12-13 14:18:04,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655559736] [2022-12-13 14:18:04,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:18:04,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 14:18:04,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 14:18:04,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 14:18:04,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=4, NotChecked=30, Total=306 [2022-12-13 14:18:04,946 INFO L87 Difference]: Start difference. First operand 271 states and 297 transitions. Second operand has 8 states, 7 states have (on average 4.857142857142857) internal successors, (34), 8 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 14:18:07,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:18:07,302 INFO L93 Difference]: Finished difference Result 479 states and 523 transitions. [2022-12-13 14:18:07,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 14:18:07,303 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.857142857142857) internal successors, (34), 8 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 46 [2022-12-13 14:18:07,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:18:07,304 INFO L225 Difference]: With dead ends: 479 [2022-12-13 14:18:07,304 INFO L226 Difference]: Without dead ends: 479 [2022-12-13 14:18:07,305 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=58, Invalid=282, Unknown=6, NotChecked=34, Total=380 [2022-12-13 14:18:07,305 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 198 mSDsluCounter, 403 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 11 mSolverCounterUnsat, 110 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 110 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-12-13 14:18:07,305 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 494 Invalid, 586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 465 Invalid, 110 Unknown, 0 Unchecked, 2.2s Time] [2022-12-13 14:18:07,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2022-12-13 14:18:07,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 415. [2022-12-13 14:18:07,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 415 states, 352 states have (on average 1.3096590909090908) internal successors, (461), 400 states have internal predecessors, (461), 4 states have call successors, (4), 4 states have call predecessors, (4), 10 states have return successors, (12), 10 states have call predecessors, (12), 4 states have call successors, (12) [2022-12-13 14:18:07,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 477 transitions. [2022-12-13 14:18:07,310 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 477 transitions. Word has length 46 [2022-12-13 14:18:07,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:18:07,310 INFO L495 AbstractCegarLoop]: Abstraction has 415 states and 477 transitions. [2022-12-13 14:18:07,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.857142857142857) internal successors, (34), 8 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 14:18:07,311 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 477 transitions. [2022-12-13 14:18:07,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-12-13 14:18:07,311 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:18:07,311 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:18:07,315 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (27)] Ended with exit code 0 [2022-12-13 14:18:07,548 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Ended with exit code 0 [2022-12-13 14:18:07,712 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 14:18:07,713 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [create_dataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 89 more)] === [2022-12-13 14:18:07,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:18:07,714 INFO L85 PathProgramCache]: Analyzing trace with hash 2050875697, now seen corresponding path program 1 times [2022-12-13 14:18:07,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 14:18:07,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [579360762] [2022-12-13 14:18:07,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:18:07,716 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 [2022-12-13 14:18:07,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 14:18:07,718 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -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) [2022-12-13 14:18:07,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2022-12-13 14:18:07,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:18:07,967 INFO L263 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 17 conjunts are in the unsatisfiable core [2022-12-13 14:18:07,968 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:18:07,973 INFO L350 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 [2022-12-13 14:18:07,978 INFO L350 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 [2022-12-13 14:18:08,056 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-13 14:18:08,099 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 9 [2022-12-13 14:18:08,108 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_1702 (_ BitVec 32)) (v_arrayElimCell_74 (_ BitVec 32)) (create_data_~data~0.base (_ BitVec 32))) (and (= (select |c_old(#valid)| create_data_~data~0.base) (_ bv0 1)) (= |c_#length| (store (store |c_old(#length)| create_data_~data~0.base v_ArrVal_1702) v_arrayElimCell_74 (_ bv80 32))))) is different from true [2022-12-13 14:18:08,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:18:08,325 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-12-13 14:18:08,326 INFO L350 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 2 case distinctions, treesize of input 15 treesize of output 27 [2022-12-13 14:18:08,339 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-12-13 14:18:08,340 INFO L350 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 [2022-12-13 14:18:08,373 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 5 not checked. [2022-12-13 14:18:08,373 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 14:18:10,638 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 14:18:10,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [579360762] [2022-12-13 14:18:10,638 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [579360762] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 14:18:10,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [937441080] [2022-12-13 14:18:10,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:18:10,639 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-13 14:18:10,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/cvc4 [2022-12-13 14:18:10,639 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-13 14:18:10,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (29)] Waiting until timeout for monitored process [2022-12-13 14:18:11,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:18:11,219 INFO L263 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 17 conjunts are in the unsatisfiable core [2022-12-13 14:18:11,222 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:18:11,249 INFO L350 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 [2022-12-13 14:18:11,252 INFO L350 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 [2022-12-13 14:18:11,295 WARN L859 $PredicateComparison]: unable to prove that (exists ((create_data_~data~0.base (_ BitVec 32))) (and (= (select |c_old(#valid)| create_data_~data~0.base) (_ bv0 1)) (exists ((v_ArrVal_1819 (_ BitVec 32))) (= (store (store |c_old(#length)| create_data_~data~0.base v_ArrVal_1819) |c_create_data_#t~malloc7.base| (_ bv80 32)) |c_#length|)))) is different from true [2022-12-13 14:18:11,304 WARN L859 $PredicateComparison]: unable to prove that (exists ((create_data_~data~0.base (_ BitVec 32)) (v_ArrVal_1819 (_ BitVec 32)) (|create_data_#t~malloc7.base| (_ BitVec 32))) (and (= (select |c_old(#valid)| create_data_~data~0.base) (_ bv0 1)) (= |c_#length| (store (store |c_old(#length)| create_data_~data~0.base v_ArrVal_1819) |create_data_#t~malloc7.base| (_ bv80 32))))) is different from true [2022-12-13 14:18:11,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:18:11,532 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-12-13 14:18:11,532 INFO L350 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 2 case distinctions, treesize of input 15 treesize of output 27 [2022-12-13 14:18:11,544 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-12-13 14:18:11,544 INFO L350 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 [2022-12-13 14:18:11,567 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-13 14:18:11,567 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 14:18:11,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [937441080] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:18:11,567 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 14:18:11,567 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 10 [2022-12-13 14:18:11,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782295277] [2022-12-13 14:18:11,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:18:11,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 14:18:11,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 14:18:11,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 14:18:11,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=72, Unknown=4, NotChecked=54, Total=156 [2022-12-13 14:18:11,568 INFO L87 Difference]: Start difference. First operand 415 states and 477 transitions. Second operand has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 14:18:12,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:18:12,567 INFO L93 Difference]: Finished difference Result 600 states and 697 transitions. [2022-12-13 14:18:12,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 14:18:12,568 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 48 [2022-12-13 14:18:12,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:18:12,570 INFO L225 Difference]: With dead ends: 600 [2022-12-13 14:18:12,570 INFO L226 Difference]: Without dead ends: 600 [2022-12-13 14:18:12,570 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 84 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=37, Invalid=103, Unknown=4, NotChecked=66, Total=210 [2022-12-13 14:18:12,570 INFO L413 NwaCegarLoop]: 181 mSDtfsCounter, 230 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 452 SdHoareTripleChecker+Invalid, 901 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 387 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-13 14:18:12,570 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [230 Valid, 452 Invalid, 901 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 509 Invalid, 0 Unknown, 387 Unchecked, 0.9s Time] [2022-12-13 14:18:12,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2022-12-13 14:18:12,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 421. [2022-12-13 14:18:12,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 358 states have (on average 1.3100558659217878) internal successors, (469), 406 states have internal predecessors, (469), 4 states have call successors, (4), 4 states have call predecessors, (4), 10 states have return successors, (12), 10 states have call predecessors, (12), 4 states have call successors, (12) [2022-12-13 14:18:12,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 485 transitions. [2022-12-13 14:18:12,576 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 485 transitions. Word has length 48 [2022-12-13 14:18:12,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:18:12,576 INFO L495 AbstractCegarLoop]: Abstraction has 421 states and 485 transitions. [2022-12-13 14:18:12,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 14:18:12,576 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 485 transitions. [2022-12-13 14:18:12,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-12-13 14:18:12,577 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:18:12,577 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:18:12,582 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (29)] Ended with exit code 0 [2022-12-13 14:18:12,792 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2022-12-13 14:18:12,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt,28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 14:18:12,979 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [create_dataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 89 more)] === [2022-12-13 14:18:12,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:18:12,980 INFO L85 PathProgramCache]: Analyzing trace with hash 471257990, now seen corresponding path program 1 times [2022-12-13 14:18:12,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 14:18:12,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [528590586] [2022-12-13 14:18:12,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:18:12,982 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 [2022-12-13 14:18:12,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 14:18:12,983 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -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) [2022-12-13 14:18:12,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2022-12-13 14:18:13,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:18:13,168 INFO L263 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 14:18:13,169 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:18:13,190 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-13 14:18:13,190 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 14:18:13,191 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 14:18:13,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [528590586] [2022-12-13 14:18:13,191 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [528590586] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:18:13,191 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:18:13,191 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 14:18:13,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179364195] [2022-12-13 14:18:13,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:18:13,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 14:18:13,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 14:18:13,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 14:18:13,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 14:18:13,192 INFO L87 Difference]: Start difference. First operand 421 states and 485 transitions. Second operand has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 14:18:13,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:18:13,461 INFO L93 Difference]: Finished difference Result 420 states and 483 transitions. [2022-12-13 14:18:13,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 14:18:13,462 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 48 [2022-12-13 14:18:13,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:18:13,463 INFO L225 Difference]: With dead ends: 420 [2022-12-13 14:18:13,463 INFO L226 Difference]: Without dead ends: 420 [2022-12-13 14:18:13,463 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 14:18:13,463 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 140 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 14:18:13,464 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 215 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 14:18:13,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2022-12-13 14:18:13,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 420. [2022-12-13 14:18:13,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 358 states have (on average 1.3044692737430168) internal successors, (467), 405 states have internal predecessors, (467), 4 states have call successors, (4), 4 states have call predecessors, (4), 10 states have return successors, (12), 10 states have call predecessors, (12), 4 states have call successors, (12) [2022-12-13 14:18:13,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 483 transitions. [2022-12-13 14:18:13,472 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 483 transitions. Word has length 48 [2022-12-13 14:18:13,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:18:13,472 INFO L495 AbstractCegarLoop]: Abstraction has 420 states and 483 transitions. [2022-12-13 14:18:13,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 14:18:13,473 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 483 transitions. [2022-12-13 14:18:13,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-12-13 14:18:13,473 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:18:13,473 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:18:13,483 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Ended with exit code 0 [2022-12-13 14:18:13,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 14:18:13,674 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [create_dataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 89 more)] === [2022-12-13 14:18:13,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:18:13,676 INFO L85 PathProgramCache]: Analyzing trace with hash 471257991, now seen corresponding path program 1 times [2022-12-13 14:18:13,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 14:18:13,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1665162570] [2022-12-13 14:18:13,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:18:13,678 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 [2022-12-13 14:18:13,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 14:18:13,680 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -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) [2022-12-13 14:18:13,680 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2022-12-13 14:18:13,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:18:13,917 INFO L263 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 14:18:13,918 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:18:13,987 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-13 14:18:13,987 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 14:18:13,987 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 14:18:13,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1665162570] [2022-12-13 14:18:13,987 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1665162570] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:18:13,987 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:18:13,987 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 14:18:13,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205713142] [2022-12-13 14:18:13,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:18:13,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 14:18:13,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 14:18:13,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 14:18:13,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 14:18:13,989 INFO L87 Difference]: Start difference. First operand 420 states and 483 transitions. Second operand has 5 states, 4 states have (on average 9.0) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 14:18:14,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:18:14,121 INFO L93 Difference]: Finished difference Result 411 states and 471 transitions. [2022-12-13 14:18:14,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 14:18:14,122 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.0) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 48 [2022-12-13 14:18:14,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:18:14,122 INFO L225 Difference]: With dead ends: 411 [2022-12-13 14:18:14,123 INFO L226 Difference]: Without dead ends: 411 [2022-12-13 14:18:14,123 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-12-13 14:18:14,123 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 205 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 14:18:14,123 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 178 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 14:18:14,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2022-12-13 14:18:14,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 411. [2022-12-13 14:18:14,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 411 states, 358 states have (on average 1.270949720670391) internal successors, (455), 396 states have internal predecessors, (455), 4 states have call successors, (4), 4 states have call predecessors, (4), 10 states have return successors, (12), 10 states have call predecessors, (12), 4 states have call successors, (12) [2022-12-13 14:18:14,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 471 transitions. [2022-12-13 14:18:14,127 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 471 transitions. Word has length 48 [2022-12-13 14:18:14,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:18:14,128 INFO L495 AbstractCegarLoop]: Abstraction has 411 states and 471 transitions. [2022-12-13 14:18:14,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.0) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 14:18:14,128 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 471 transitions. [2022-12-13 14:18:14,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-12-13 14:18:14,128 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:18:14,128 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:18:14,139 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0 [2022-12-13 14:18:14,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 14:18:14,329 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [create_dataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 89 more)] === [2022-12-13 14:18:14,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:18:14,329 INFO L85 PathProgramCache]: Analyzing trace with hash 1724095953, now seen corresponding path program 1 times [2022-12-13 14:18:14,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 14:18:14,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1454738904] [2022-12-13 14:18:14,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:18:14,330 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 [2022-12-13 14:18:14,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 14:18:14,330 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -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) [2022-12-13 14:18:14,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2022-12-13 14:18:14,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:18:14,527 INFO L263 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-13 14:18:14,529 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:18:14,595 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-13 14:18:14,608 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2022-12-13 14:18:14,616 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-13 14:18:14,617 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 14:18:14,617 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 14:18:14,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1454738904] [2022-12-13 14:18:14,617 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1454738904] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:18:14,617 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:18:14,617 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 14:18:14,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31544313] [2022-12-13 14:18:14,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:18:14,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 14:18:14,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 14:18:14,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 14:18:14,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-13 14:18:14,618 INFO L87 Difference]: Start difference. First operand 411 states and 471 transitions. Second operand has 6 states, 5 states have (on average 7.4) internal successors, (37), 6 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 14:18:15,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:18:15,152 INFO L93 Difference]: Finished difference Result 432 states and 492 transitions. [2022-12-13 14:18:15,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 14:18:15,153 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.4) internal successors, (37), 6 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 49 [2022-12-13 14:18:15,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:18:15,154 INFO L225 Difference]: With dead ends: 432 [2022-12-13 14:18:15,154 INFO L226 Difference]: Without dead ends: 432 [2022-12-13 14:18:15,154 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-13 14:18:15,154 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 147 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 357 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-13 14:18:15,154 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 357 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-13 14:18:15,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2022-12-13 14:18:15,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 410. [2022-12-13 14:18:15,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 358 states have (on average 1.26536312849162) internal successors, (453), 395 states have internal predecessors, (453), 4 states have call successors, (4), 4 states have call predecessors, (4), 10 states have return successors, (12), 10 states have call predecessors, (12), 4 states have call successors, (12) [2022-12-13 14:18:15,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 469 transitions. [2022-12-13 14:18:15,159 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 469 transitions. Word has length 49 [2022-12-13 14:18:15,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:18:15,159 INFO L495 AbstractCegarLoop]: Abstraction has 410 states and 469 transitions. [2022-12-13 14:18:15,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.4) internal successors, (37), 6 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 14:18:15,159 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 469 transitions. [2022-12-13 14:18:15,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-12-13 14:18:15,160 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:18:15,160 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:18:15,173 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Ended with exit code 0 [2022-12-13 14:18:15,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 14:18:15,361 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [create_dataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 89 more)] === [2022-12-13 14:18:15,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:18:15,361 INFO L85 PathProgramCache]: Analyzing trace with hash 1724095954, now seen corresponding path program 1 times [2022-12-13 14:18:15,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 14:18:15,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [680218973] [2022-12-13 14:18:15,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:18:15,362 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 [2022-12-13 14:18:15,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 14:18:15,363 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -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) [2022-12-13 14:18:15,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2022-12-13 14:18:15,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:18:15,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 15 conjunts are in the unsatisfiable core [2022-12-13 14:18:15,675 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:18:15,788 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-13 14:18:15,793 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-13 14:18:15,817 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2022-12-13 14:18:15,819 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-12-13 14:18:15,836 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-13 14:18:15,836 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 14:18:15,837 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 14:18:15,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [680218973] [2022-12-13 14:18:15,837 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [680218973] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:18:15,837 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:18:15,837 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 14:18:15,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208111507] [2022-12-13 14:18:15,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:18:15,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 14:18:15,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 14:18:15,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 14:18:15,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-13 14:18:15,838 INFO L87 Difference]: Start difference. First operand 410 states and 469 transitions. Second operand has 6 states, 5 states have (on average 7.4) internal successors, (37), 6 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 14:18:16,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:18:16,369 INFO L93 Difference]: Finished difference Result 448 states and 507 transitions. [2022-12-13 14:18:16,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 14:18:16,370 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.4) internal successors, (37), 6 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 49 [2022-12-13 14:18:16,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:18:16,371 INFO L225 Difference]: With dead ends: 448 [2022-12-13 14:18:16,371 INFO L226 Difference]: Without dead ends: 448 [2022-12-13 14:18:16,371 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-13 14:18:16,371 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 283 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-13 14:18:16,371 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [283 Valid, 305 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-13 14:18:16,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2022-12-13 14:18:16,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 409. [2022-12-13 14:18:16,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 358 states have (on average 1.2597765363128492) internal successors, (451), 394 states have internal predecessors, (451), 4 states have call successors, (4), 4 states have call predecessors, (4), 10 states have return successors, (12), 10 states have call predecessors, (12), 4 states have call successors, (12) [2022-12-13 14:18:16,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 467 transitions. [2022-12-13 14:18:16,376 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 467 transitions. Word has length 49 [2022-12-13 14:18:16,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:18:16,376 INFO L495 AbstractCegarLoop]: Abstraction has 409 states and 467 transitions. [2022-12-13 14:18:16,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.4) internal successors, (37), 6 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 14:18:16,377 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 467 transitions. [2022-12-13 14:18:16,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-12-13 14:18:16,377 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:18:16,377 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:18:16,390 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Forceful destruction successful, exit code 0 [2022-12-13 14:18:16,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 14:18:16,577 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr22REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [create_dataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 89 more)] === [2022-12-13 14:18:16,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:18:16,578 INFO L85 PathProgramCache]: Analyzing trace with hash -42553449, now seen corresponding path program 1 times [2022-12-13 14:18:16,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 14:18:16,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1522388821] [2022-12-13 14:18:16,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:18:16,578 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 [2022-12-13 14:18:16,578 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 14:18:16,579 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -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) [2022-12-13 14:18:16,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2022-12-13 14:18:16,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:18:16,791 INFO L263 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-13 14:18:16,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:18:16,846 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-13 14:18:16,864 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2022-12-13 14:18:16,873 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-13 14:18:16,873 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 14:18:16,873 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 14:18:16,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1522388821] [2022-12-13 14:18:16,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1522388821] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:18:16,873 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:18:16,873 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 14:18:16,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466507358] [2022-12-13 14:18:16,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:18:16,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 14:18:16,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 14:18:16,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 14:18:16,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-13 14:18:16,874 INFO L87 Difference]: Start difference. First operand 409 states and 467 transitions. Second operand has 6 states, 5 states have (on average 8.2) internal successors, (41), 6 states have internal predecessors, (41), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 14:18:17,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:18:17,395 INFO L93 Difference]: Finished difference Result 432 states and 490 transitions. [2022-12-13 14:18:17,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 14:18:17,396 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 6 states have internal predecessors, (41), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 53 [2022-12-13 14:18:17,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:18:17,397 INFO L225 Difference]: With dead ends: 432 [2022-12-13 14:18:17,397 INFO L226 Difference]: Without dead ends: 432 [2022-12-13 14:18:17,397 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-13 14:18:17,397 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 132 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-13 14:18:17,398 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 360 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-13 14:18:17,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2022-12-13 14:18:17,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 408. [2022-12-13 14:18:17,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 358 states have (on average 1.2541899441340782) internal successors, (449), 393 states have internal predecessors, (449), 4 states have call successors, (4), 4 states have call predecessors, (4), 10 states have return successors, (12), 10 states have call predecessors, (12), 4 states have call successors, (12) [2022-12-13 14:18:17,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 465 transitions. [2022-12-13 14:18:17,402 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 465 transitions. Word has length 53 [2022-12-13 14:18:17,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:18:17,402 INFO L495 AbstractCegarLoop]: Abstraction has 408 states and 465 transitions. [2022-12-13 14:18:17,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 6 states have internal predecessors, (41), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 14:18:17,402 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 465 transitions. [2022-12-13 14:18:17,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-12-13 14:18:17,403 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:18:17,403 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:18:17,415 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Ended with exit code 0 [2022-12-13 14:18:17,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 14:18:17,604 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr23REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [create_dataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 89 more)] === [2022-12-13 14:18:17,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:18:17,605 INFO L85 PathProgramCache]: Analyzing trace with hash -42553448, now seen corresponding path program 1 times [2022-12-13 14:18:17,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 14:18:17,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [842318148] [2022-12-13 14:18:17,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:18:17,608 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 [2022-12-13 14:18:17,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 14:18:17,609 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -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) [2022-12-13 14:18:17,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2022-12-13 14:18:17,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:18:17,815 INFO L263 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 15 conjunts are in the unsatisfiable core [2022-12-13 14:18:17,817 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:18:17,898 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-13 14:18:17,903 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-13 14:18:17,944 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-12-13 14:18:17,948 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2022-12-13 14:18:17,961 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-13 14:18:17,961 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 14:18:17,961 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 14:18:17,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [842318148] [2022-12-13 14:18:17,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [842318148] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:18:17,962 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:18:17,962 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 14:18:17,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663144915] [2022-12-13 14:18:17,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:18:17,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 14:18:17,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 14:18:17,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 14:18:17,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-13 14:18:17,963 INFO L87 Difference]: Start difference. First operand 408 states and 465 transitions. Second operand has 6 states, 5 states have (on average 8.2) internal successors, (41), 6 states have internal predecessors, (41), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 14:18:18,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:18:18,469 INFO L93 Difference]: Finished difference Result 448 states and 505 transitions. [2022-12-13 14:18:18,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 14:18:18,470 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 6 states have internal predecessors, (41), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 53 [2022-12-13 14:18:18,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:18:18,471 INFO L225 Difference]: With dead ends: 448 [2022-12-13 14:18:18,471 INFO L226 Difference]: Without dead ends: 448 [2022-12-13 14:18:18,471 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-13 14:18:18,472 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 266 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-13 14:18:18,472 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [266 Valid, 308 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-13 14:18:18,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2022-12-13 14:18:18,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 407. [2022-12-13 14:18:18,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 358 states have (on average 1.2486033519553073) internal successors, (447), 392 states have internal predecessors, (447), 4 states have call successors, (4), 4 states have call predecessors, (4), 10 states have return successors, (12), 10 states have call predecessors, (12), 4 states have call successors, (12) [2022-12-13 14:18:18,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 463 transitions. [2022-12-13 14:18:18,476 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 463 transitions. Word has length 53 [2022-12-13 14:18:18,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:18:18,477 INFO L495 AbstractCegarLoop]: Abstraction has 407 states and 463 transitions. [2022-12-13 14:18:18,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 6 states have internal predecessors, (41), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 14:18:18,477 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 463 transitions. [2022-12-13 14:18:18,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-12-13 14:18:18,477 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:18:18,477 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:18:18,490 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Ended with exit code 0 [2022-12-13 14:18:18,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 14:18:18,678 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting create_dataErr26REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [create_dataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 89 more)] === [2022-12-13 14:18:18,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:18:18,678 INFO L85 PathProgramCache]: Analyzing trace with hash 1556982670, now seen corresponding path program 1 times [2022-12-13 14:18:18,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 14:18:18,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1988300828] [2022-12-13 14:18:18,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:18:18,679 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 [2022-12-13 14:18:18,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 14:18:18,680 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -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) [2022-12-13 14:18:18,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2022-12-13 14:18:19,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:18:19,171 INFO L263 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 14:18:19,172 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:18:19,176 INFO L350 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 [2022-12-13 14:18:19,212 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-12-13 14:18:19,213 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2022-12-13 14:18:19,222 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-13 14:18:19,222 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 14:18:19,253 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-13 14:18:19,253 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 14:18:19,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1988300828] [2022-12-13 14:18:19,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1988300828] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 14:18:19,253 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 14:18:19,253 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2022-12-13 14:18:19,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607723633] [2022-12-13 14:18:19,254 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 14:18:19,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 14:18:19,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 14:18:19,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 14:18:19,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 14:18:19,255 INFO L87 Difference]: Start difference. First operand 407 states and 463 transitions. Second operand has 4 states, 3 states have (on average 14.0) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:18:19,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:18:19,583 INFO L93 Difference]: Finished difference Result 406 states and 461 transitions. [2022-12-13 14:18:19,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 14:18:19,584 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 14.0) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2022-12-13 14:18:19,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:18:19,584 INFO L225 Difference]: With dead ends: 406 [2022-12-13 14:18:19,584 INFO L226 Difference]: Without dead ends: 406 [2022-12-13 14:18:19,585 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 100 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 14:18:19,585 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 50 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 14:18:19,585 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 238 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 14:18:19,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 406 states. [2022-12-13 14:18:19,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 406 to 406. [2022-12-13 14:18:19,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 358 states have (on average 1.2430167597765363) internal successors, (445), 391 states have internal predecessors, (445), 4 states have call successors, (4), 4 states have call predecessors, (4), 10 states have return successors, (12), 10 states have call predecessors, (12), 4 states have call successors, (12) [2022-12-13 14:18:19,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 461 transitions. [2022-12-13 14:18:19,590 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 461 transitions. Word has length 53 [2022-12-13 14:18:19,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:18:19,590 INFO L495 AbstractCegarLoop]: Abstraction has 406 states and 461 transitions. [2022-12-13 14:18:19,590 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 14.0) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:18:19,590 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 461 transitions. [2022-12-13 14:18:19,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-12-13 14:18:19,591 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:18:19,591 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:18:19,603 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Ended with exit code 0 [2022-12-13 14:18:19,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 14:18:19,792 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting create_dataErr27REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [create_dataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 89 more)] === [2022-12-13 14:18:19,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:18:19,792 INFO L85 PathProgramCache]: Analyzing trace with hash 1556982671, now seen corresponding path program 1 times [2022-12-13 14:18:19,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 14:18:19,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1507040140] [2022-12-13 14:18:19,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:18:19,793 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 [2022-12-13 14:18:19,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 14:18:19,794 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -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) [2022-12-13 14:18:19,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2022-12-13 14:18:20,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:18:20,238 INFO L263 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-13 14:18:20,240 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:18:20,244 INFO L350 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 [2022-12-13 14:18:20,316 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-12-13 14:18:20,317 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2022-12-13 14:18:20,333 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-13 14:18:20,333 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 14:18:20,576 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-13 14:18:20,576 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 14:18:20,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1507040140] [2022-12-13 14:18:20,577 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1507040140] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 14:18:20,577 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 14:18:20,577 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 4] total 6 [2022-12-13 14:18:20,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417223822] [2022-12-13 14:18:20,577 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 14:18:20,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 14:18:20,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 14:18:20,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 14:18:20,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-12-13 14:18:20,578 INFO L87 Difference]: Start difference. First operand 406 states and 461 transitions. Second operand has 7 states, 6 states have (on average 9.333333333333334) internal successors, (56), 7 states have internal predecessors, (56), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:18:21,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:18:21,137 INFO L93 Difference]: Finished difference Result 402 states and 453 transitions. [2022-12-13 14:18:21,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 14:18:21,138 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.333333333333334) internal successors, (56), 7 states have internal predecessors, (56), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2022-12-13 14:18:21,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:18:21,139 INFO L225 Difference]: With dead ends: 402 [2022-12-13 14:18:21,139 INFO L226 Difference]: Without dead ends: 402 [2022-12-13 14:18:21,139 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 98 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-13 14:18:21,140 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 84 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-13 14:18:21,140 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 254 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-13 14:18:21,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2022-12-13 14:18:21,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 388. [2022-12-13 14:18:21,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 388 states, 344 states have (on average 1.2296511627906976) internal successors, (423), 373 states have internal predecessors, (423), 4 states have call successors, (4), 4 states have call predecessors, (4), 10 states have return successors, (12), 10 states have call predecessors, (12), 4 states have call successors, (12) [2022-12-13 14:18:21,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 439 transitions. [2022-12-13 14:18:21,144 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 439 transitions. Word has length 53 [2022-12-13 14:18:21,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:18:21,144 INFO L495 AbstractCegarLoop]: Abstraction has 388 states and 439 transitions. [2022-12-13 14:18:21,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.333333333333334) internal successors, (56), 7 states have internal predecessors, (56), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:18:21,144 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 439 transitions. [2022-12-13 14:18:21,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-12-13 14:18:21,144 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:18:21,145 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:18:21,160 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Ended with exit code 0 [2022-12-13 14:18:21,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 14:18:21,345 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr24REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [create_dataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 89 more)] === [2022-12-13 14:18:21,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:18:21,345 INFO L85 PathProgramCache]: Analyzing trace with hash -1319156755, now seen corresponding path program 1 times [2022-12-13 14:18:21,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 14:18:21,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [988921145] [2022-12-13 14:18:21,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:18:21,346 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 [2022-12-13 14:18:21,346 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 14:18:21,347 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -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) [2022-12-13 14:18:21,348 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2022-12-13 14:18:21,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:18:21,645 INFO L263 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 25 conjunts are in the unsatisfiable core [2022-12-13 14:18:21,648 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:18:21,762 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-13 14:18:21,814 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-13 14:18:21,831 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-13 14:18:21,831 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 26 [2022-12-13 14:18:21,922 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-12-13 14:18:21,956 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 14:18:21,956 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 29 [2022-12-13 14:18:21,979 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-13 14:18:21,979 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 14:18:21,979 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 14:18:21,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [988921145] [2022-12-13 14:18:21,979 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [988921145] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:18:21,979 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:18:21,979 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 14:18:21,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792529901] [2022-12-13 14:18:21,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:18:21,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 14:18:21,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 14:18:21,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 14:18:21,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-12-13 14:18:21,981 INFO L87 Difference]: Start difference. First operand 388 states and 439 transitions. Second operand has 11 states, 10 states have (on average 4.6) internal successors, (46), 10 states have internal predecessors, (46), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 14:18:23,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:18:23,272 INFO L93 Difference]: Finished difference Result 467 states and 539 transitions. [2022-12-13 14:18:23,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 14:18:23,273 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 4.6) internal successors, (46), 10 states have internal predecessors, (46), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 54 [2022-12-13 14:18:23,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:18:23,274 INFO L225 Difference]: With dead ends: 467 [2022-12-13 14:18:23,274 INFO L226 Difference]: Without dead ends: 467 [2022-12-13 14:18:23,274 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2022-12-13 14:18:23,274 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 219 mSDsluCounter, 470 mSDsCounter, 0 mSdLazyCounter, 596 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 558 SdHoareTripleChecker+Invalid, 606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 596 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-13 14:18:23,274 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 558 Invalid, 606 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 596 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-13 14:18:23,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2022-12-13 14:18:23,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 406. [2022-12-13 14:18:23,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 362 states have (on average 1.2320441988950277) internal successors, (446), 391 states have internal predecessors, (446), 4 states have call successors, (4), 4 states have call predecessors, (4), 10 states have return successors, (12), 10 states have call predecessors, (12), 4 states have call successors, (12) [2022-12-13 14:18:23,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 462 transitions. [2022-12-13 14:18:23,279 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 462 transitions. Word has length 54 [2022-12-13 14:18:23,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:18:23,280 INFO L495 AbstractCegarLoop]: Abstraction has 406 states and 462 transitions. [2022-12-13 14:18:23,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 4.6) internal successors, (46), 10 states have internal predecessors, (46), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 14:18:23,280 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 462 transitions. [2022-12-13 14:18:23,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-12-13 14:18:23,280 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:18:23,280 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:18:23,290 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Ended with exit code 0 [2022-12-13 14:18:23,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 14:18:23,482 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr25REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [create_dataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 89 more)] === [2022-12-13 14:18:23,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:18:23,486 INFO L85 PathProgramCache]: Analyzing trace with hash -1319156754, now seen corresponding path program 1 times [2022-12-13 14:18:23,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 14:18:23,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1455841852] [2022-12-13 14:18:23,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:18:23,488 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 [2022-12-13 14:18:23,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 14:18:23,491 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -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) [2022-12-13 14:18:23,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2022-12-13 14:18:23,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:18:23,874 INFO L263 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 33 conjunts are in the unsatisfiable core [2022-12-13 14:18:23,876 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:18:23,879 INFO L350 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 [2022-12-13 14:18:23,900 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-12-13 14:18:23,900 INFO L350 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 [2022-12-13 14:18:24,088 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-13 14:18:24,095 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-13 14:18:24,166 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 21 treesize of output 20 [2022-12-13 14:18:24,176 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 23 treesize of output 22 [2022-12-13 14:18:24,335 INFO L321 Elim1Store]: treesize reduction 29, result has 9.4 percent of original size [2022-12-13 14:18:24,335 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 63 treesize of output 37 [2022-12-13 14:18:24,350 INFO L321 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-12-13 14:18:24,351 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 16 [2022-12-13 14:18:24,377 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-13 14:18:24,377 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 14:18:24,377 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 14:18:24,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1455841852] [2022-12-13 14:18:24,378 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1455841852] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:18:24,378 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:18:24,378 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-13 14:18:24,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893002788] [2022-12-13 14:18:24,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:18:24,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 14:18:24,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 14:18:24,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 14:18:24,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-12-13 14:18:24,379 INFO L87 Difference]: Start difference. First operand 406 states and 462 transitions. Second operand has 12 states, 11 states have (on average 3.8181818181818183) internal successors, (42), 11 states have internal predecessors, (42), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 14:18:26,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:18:26,533 INFO L93 Difference]: Finished difference Result 516 states and 572 transitions. [2022-12-13 14:18:26,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 14:18:26,533 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.8181818181818183) internal successors, (42), 11 states have internal predecessors, (42), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 54 [2022-12-13 14:18:26,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:18:26,534 INFO L225 Difference]: With dead ends: 516 [2022-12-13 14:18:26,535 INFO L226 Difference]: Without dead ends: 516 [2022-12-13 14:18:26,535 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=82, Invalid=298, Unknown=0, NotChecked=0, Total=380 [2022-12-13 14:18:26,535 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 391 mSDsluCounter, 557 mSDsCounter, 0 mSdLazyCounter, 696 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 391 SdHoareTripleChecker+Valid, 634 SdHoareTripleChecker+Invalid, 711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 696 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-12-13 14:18:26,535 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [391 Valid, 634 Invalid, 711 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 696 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-12-13 14:18:26,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2022-12-13 14:18:26,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 406. [2022-12-13 14:18:26,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 362 states have (on average 1.2265193370165746) internal successors, (444), 391 states have internal predecessors, (444), 4 states have call successors, (4), 4 states have call predecessors, (4), 10 states have return successors, (12), 10 states have call predecessors, (12), 4 states have call successors, (12) [2022-12-13 14:18:26,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 460 transitions. [2022-12-13 14:18:26,539 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 460 transitions. Word has length 54 [2022-12-13 14:18:26,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:18:26,539 INFO L495 AbstractCegarLoop]: Abstraction has 406 states and 460 transitions. [2022-12-13 14:18:26,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.8181818181818183) internal successors, (42), 11 states have internal predecessors, (42), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 14:18:26,540 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 460 transitions. [2022-12-13 14:18:26,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-12-13 14:18:26,540 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:18:26,540 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:18:26,554 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (39)] Forceful destruction successful, exit code 0 [2022-12-13 14:18:26,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 14:18:26,741 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [create_dataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 89 more)] === [2022-12-13 14:18:26,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:18:26,742 INFO L85 PathProgramCache]: Analyzing trace with hash 1610777396, now seen corresponding path program 1 times [2022-12-13 14:18:26,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 14:18:26,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [677589993] [2022-12-13 14:18:26,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:18:26,745 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 [2022-12-13 14:18:26,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 14:18:26,748 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -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) [2022-12-13 14:18:26,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (40)] Waiting until timeout for monitored process [2022-12-13 14:18:27,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:18:27,226 INFO L263 TraceCheckSpWp]: Trace formula consists of 419 conjuncts, 18 conjunts are in the unsatisfiable core [2022-12-13 14:18:27,229 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:18:27,233 INFO L350 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 [2022-12-13 14:18:27,237 INFO L350 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 [2022-12-13 14:18:27,489 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_3328 (_ BitVec 32)) (create_data_~data~0.base (_ BitVec 32)) (v_ArrVal_3329 (_ BitVec 32)) (|create_data_#t~malloc7.base| (_ BitVec 32))) (and (= (select |c_old(#valid)| create_data_~data~0.base) (_ bv0 1)) (= (_ bv0 1) (select (store |c_old(#valid)| create_data_~data~0.base (_ bv1 1)) |create_data_#t~malloc7.base|)) (= (store (store |c_old(#length)| create_data_~data~0.base v_ArrVal_3329) |create_data_#t~malloc7.base| v_ArrVal_3328) |c_#length|))) is different from true [2022-12-13 14:18:27,781 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_3328 (_ BitVec 32)) (create_data_~data~0.base (_ BitVec 32)) (v_ArrVal_3329 (_ BitVec 32)) (create_data_~nextData~0.base (_ BitVec 32)) (|create_data_#t~malloc7.base| (_ BitVec 32))) (and (= (select |c_old(#valid)| create_data_~data~0.base) (_ bv0 1)) (= (_ bv0 1) (select (store |c_old(#valid)| create_data_~data~0.base (_ bv1 1)) |create_data_#t~malloc7.base|)) (= (store (store (store |c_old(#length)| create_data_~data~0.base v_ArrVal_3329) |create_data_#t~malloc7.base| v_ArrVal_3328) create_data_~nextData~0.base (_ bv16 32)) |c_#length|))) is different from true [2022-12-13 14:18:27,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:18:27,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:18:27,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:18:28,020 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-12-13 14:18:28,020 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 18 treesize of output 36 [2022-12-13 14:18:28,059 INFO L321 Elim1Store]: treesize reduction 22, result has 29.0 percent of original size [2022-12-13 14:18:28,059 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 22 treesize of output 24 [2022-12-13 14:18:28,099 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 1 not checked. [2022-12-13 14:18:28,100 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 14:18:30,363 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 14:18:30,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [677589993] [2022-12-13 14:18:30,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [677589993] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 14:18:30,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1122232714] [2022-12-13 14:18:30,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:18:30,363 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-13 14:18:30,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/cvc4 [2022-12-13 14:18:30,364 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-13 14:18:30,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (41)] Waiting until timeout for monitored process [2022-12-13 14:18:31,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:18:31,253 INFO L263 TraceCheckSpWp]: Trace formula consists of 419 conjuncts, 21 conjunts are in the unsatisfiable core [2022-12-13 14:18:31,256 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:18:31,289 INFO L350 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 [2022-12-13 14:18:31,292 INFO L350 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 [2022-12-13 14:18:31,875 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_3328 (_ BitVec 32)) (create_data_~data~0.base (_ BitVec 32)) (v_ArrVal_3329 (_ BitVec 32)) (|create_data_#t~malloc7.base| (_ BitVec 32))) (and (= (select |c_old(#valid)| create_data_~data~0.base) (_ bv0 1)) (= (store (store (store |c_old(#length)| create_data_~data~0.base v_ArrVal_3329) |create_data_#t~malloc7.base| v_ArrVal_3328) c_create_data_~nextData~0.base (_ bv16 32)) |c_#length|) (= (_ bv0 1) (select (store |c_old(#valid)| create_data_~data~0.base (_ bv1 1)) |create_data_#t~malloc7.base|)))) is different from true [2022-12-13 14:18:32,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:18:32,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:18:32,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:18:32,109 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-12-13 14:18:32,109 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 18 treesize of output 36 [2022-12-13 14:18:32,142 INFO L321 Elim1Store]: treesize reduction 22, result has 29.0 percent of original size [2022-12-13 14:18:32,143 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 22 treesize of output 24 [2022-12-13 14:18:32,158 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 1 not checked. [2022-12-13 14:18:32,158 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 14:18:36,432 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1122232714] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 14:18:36,432 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 14:18:36,432 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9] total 9 [2022-12-13 14:18:36,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647758224] [2022-12-13 14:18:36,432 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 14:18:36,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 14:18:36,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 14:18:36,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 14:18:36,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=70, Unknown=5, NotChecked=54, Total=156 [2022-12-13 14:18:36,433 INFO L87 Difference]: Start difference. First operand 406 states and 460 transitions. Second operand has 10 states, 9 states have (on average 5.888888888888889) internal successors, (53), 9 states have internal predecessors, (53), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 14:18:36,538 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((create_data_~data~0.base (_ BitVec 32))) (and (exists ((v_ArrVal_3328 (_ BitVec 32)) (v_ArrVal_3329 (_ BitVec 32))) (= |c_#length| (store (store |c_old(#length)| create_data_~data~0.base v_ArrVal_3329) |c_create_data_#t~malloc7.base| v_ArrVal_3328))) (= (select |c_old(#valid)| create_data_~data~0.base) (_ bv0 1)) (= (_ bv0 1) (select (store |c_old(#valid)| create_data_~data~0.base (_ bv1 1)) |c_create_data_#t~malloc7.base|)))) (exists ((v_ArrVal_3328 (_ BitVec 32)) (create_data_~data~0.base (_ BitVec 32)) (v_ArrVal_3329 (_ BitVec 32)) (|create_data_#t~malloc7.base| (_ BitVec 32))) (and (= (select |c_old(#valid)| create_data_~data~0.base) (_ bv0 1)) (= (_ bv0 1) (select (store |c_old(#valid)| create_data_~data~0.base (_ bv1 1)) |create_data_#t~malloc7.base|)) (= (store (store |c_old(#length)| create_data_~data~0.base v_ArrVal_3329) |create_data_#t~malloc7.base| v_ArrVal_3328) |c_#length|)))) is different from true [2022-12-13 14:18:36,566 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_3328 (_ BitVec 32)) (create_data_~data~0.base (_ BitVec 32)) (v_ArrVal_3329 (_ BitVec 32)) (create_data_~nextData~0.base (_ BitVec 32)) (|create_data_#t~malloc7.base| (_ BitVec 32))) (and (= (select |c_old(#valid)| create_data_~data~0.base) (_ bv0 1)) (= (_ bv0 1) (select (store |c_old(#valid)| create_data_~data~0.base (_ bv1 1)) |create_data_#t~malloc7.base|)) (= (store (store (store |c_old(#length)| create_data_~data~0.base v_ArrVal_3329) |create_data_#t~malloc7.base| v_ArrVal_3328) create_data_~nextData~0.base (_ bv16 32)) |c_#length|))) (exists ((v_ArrVal_3328 (_ BitVec 32)) (create_data_~data~0.base (_ BitVec 32)) (v_ArrVal_3329 (_ BitVec 32)) (|create_data_#t~malloc7.base| (_ BitVec 32))) (and (= (select |c_old(#valid)| create_data_~data~0.base) (_ bv0 1)) (= (store (store (store |c_old(#length)| create_data_~data~0.base v_ArrVal_3329) |create_data_#t~malloc7.base| v_ArrVal_3328) c_create_data_~nextData~0.base (_ bv16 32)) |c_#length|) (= (_ bv0 1) (select (store |c_old(#valid)| create_data_~data~0.base (_ bv1 1)) |create_data_#t~malloc7.base|))))) is different from true [2022-12-13 14:18:37,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:18:37,575 INFO L93 Difference]: Finished difference Result 565 states and 636 transitions. [2022-12-13 14:18:37,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 14:18:37,575 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.888888888888889) internal successors, (53), 9 states have internal predecessors, (53), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 55 [2022-12-13 14:18:37,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:18:37,577 INFO L225 Difference]: With dead ends: 565 [2022-12-13 14:18:37,577 INFO L226 Difference]: Without dead ends: 565 [2022-12-13 14:18:37,577 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 100 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=43, Invalid=102, Unknown=7, NotChecked=120, Total=272 [2022-12-13 14:18:37,577 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 198 mSDsluCounter, 411 mSDsCounter, 0 mSdLazyCounter, 450 mSolverCounterSat, 5 mSolverCounterUnsat, 17 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 1002 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 450 IncrementalHoareTripleChecker+Invalid, 17 IncrementalHoareTripleChecker+Unknown, 530 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-13 14:18:37,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 571 Invalid, 1002 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 450 Invalid, 17 Unknown, 530 Unchecked, 1.1s Time] [2022-12-13 14:18:37,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2022-12-13 14:18:37,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 427. [2022-12-13 14:18:37,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 382 states have (on average 1.2225130890052356) internal successors, (467), 411 states have internal predecessors, (467), 4 states have call successors, (4), 4 states have call predecessors, (4), 11 states have return successors, (14), 11 states have call predecessors, (14), 4 states have call successors, (14) [2022-12-13 14:18:37,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 485 transitions. [2022-12-13 14:18:37,585 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 485 transitions. Word has length 55 [2022-12-13 14:18:37,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:18:37,585 INFO L495 AbstractCegarLoop]: Abstraction has 427 states and 485 transitions. [2022-12-13 14:18:37,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.888888888888889) internal successors, (53), 9 states have internal predecessors, (53), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 14:18:37,585 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 485 transitions. [2022-12-13 14:18:37,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-12-13 14:18:37,586 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:18:37,586 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:18:37,596 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (40)] Forceful destruction successful, exit code 0 [2022-12-13 14:18:37,796 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (41)] Ended with exit code 0 [2022-12-13 14:18:37,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt [2022-12-13 14:18:37,988 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [create_dataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 89 more)] === [2022-12-13 14:18:37,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:18:37,989 INFO L85 PathProgramCache]: Analyzing trace with hash 948367783, now seen corresponding path program 1 times [2022-12-13 14:18:37,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 14:18:37,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1770368087] [2022-12-13 14:18:37,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:18:37,991 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 [2022-12-13 14:18:37,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 14:18:37,993 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -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) [2022-12-13 14:18:37,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (42)] Waiting until timeout for monitored process [2022-12-13 14:18:38,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:18:38,377 INFO L263 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 17 conjunts are in the unsatisfiable core [2022-12-13 14:18:38,379 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:18:38,383 INFO L350 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 [2022-12-13 14:18:38,388 INFO L350 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 [2022-12-13 14:18:38,497 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-13 14:18:38,541 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 9 [2022-12-13 14:18:38,549 WARN L859 $PredicateComparison]: unable to prove that (exists ((create_data_~data~0.base (_ BitVec 32)) (v_arrayElimCell_111 (_ BitVec 32)) (v_ArrVal_3666 (_ BitVec 32))) (and (= (select |c_old(#valid)| create_data_~data~0.base) (_ bv0 1)) (= |c_#length| (store (store |c_old(#length)| create_data_~data~0.base v_ArrVal_3666) v_arrayElimCell_111 (_ bv80 32))))) is different from true [2022-12-13 14:18:38,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:18:38,799 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-12-13 14:18:38,799 INFO L350 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 2 case distinctions, treesize of input 15 treesize of output 27 [2022-12-13 14:18:38,812 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-12-13 14:18:38,812 INFO L350 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 [2022-12-13 14:18:38,848 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 5 not checked. [2022-12-13 14:18:38,848 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 14:18:39,061 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 14:18:39,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1770368087] [2022-12-13 14:18:39,061 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1770368087] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 14:18:39,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1784662764] [2022-12-13 14:18:39,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:18:39,062 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-13 14:18:39,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/cvc4 [2022-12-13 14:18:39,063 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-13 14:18:39,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (43)] Waiting until timeout for monitored process [2022-12-13 14:18:39,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:18:39,631 INFO L263 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 16 conjunts are in the unsatisfiable core [2022-12-13 14:18:39,633 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:18:39,663 INFO L350 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 [2022-12-13 14:18:39,668 INFO L350 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 [2022-12-13 14:18:39,731 WARN L859 $PredicateComparison]: unable to prove that (exists ((create_data_~data~0.base (_ BitVec 32)) (|create_data_#t~malloc7.base| (_ BitVec 32))) (and (= (select |c_old(#valid)| create_data_~data~0.base) (_ bv0 1)) (exists ((v_ArrVal_3794 (_ BitVec 32))) (= (store (store |c_old(#length)| create_data_~data~0.base v_ArrVal_3794) |create_data_#t~malloc7.base| (_ bv80 32)) |c_#length|)))) is different from true [2022-12-13 14:18:40,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:18:40,036 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-12-13 14:18:40,036 INFO L350 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 2 case distinctions, treesize of input 15 treesize of output 27 [2022-12-13 14:18:40,049 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-12-13 14:18:40,049 INFO L350 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 [2022-12-13 14:18:40,078 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-12-13 14:18:40,078 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 14:18:40,078 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1784662764] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:18:40,078 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 14:18:40,079 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 9 [2022-12-13 14:18:40,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277516770] [2022-12-13 14:18:40,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:18:40,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 14:18:40,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 14:18:40,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 14:18:40,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=72, Unknown=2, NotChecked=34, Total=132 [2022-12-13 14:18:40,080 INFO L87 Difference]: Start difference. First operand 427 states and 485 transitions. Second operand has 7 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 14:18:40,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:18:40,834 INFO L93 Difference]: Finished difference Result 531 states and 599 transitions. [2022-12-13 14:18:40,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 14:18:40,834 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 56 [2022-12-13 14:18:40,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:18:40,836 INFO L225 Difference]: With dead ends: 531 [2022-12-13 14:18:40,836 INFO L226 Difference]: Without dead ends: 531 [2022-12-13 14:18:40,836 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 101 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=30, Invalid=86, Unknown=2, NotChecked=38, Total=156 [2022-12-13 14:18:40,836 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 120 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 601 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 250 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-13 14:18:40,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 344 Invalid, 601 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 347 Invalid, 0 Unknown, 250 Unchecked, 0.7s Time] [2022-12-13 14:18:40,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2022-12-13 14:18:40,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 407. [2022-12-13 14:18:40,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 364 states have (on average 1.217032967032967) internal successors, (443), 393 states have internal predecessors, (443), 4 states have call successors, (4), 4 states have call predecessors, (4), 9 states have return successors, (12), 9 states have call predecessors, (12), 4 states have call successors, (12) [2022-12-13 14:18:40,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 459 transitions. [2022-12-13 14:18:40,841 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 459 transitions. Word has length 56 [2022-12-13 14:18:40,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:18:40,841 INFO L495 AbstractCegarLoop]: Abstraction has 407 states and 459 transitions. [2022-12-13 14:18:40,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 14:18:40,841 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 459 transitions. [2022-12-13 14:18:40,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-12-13 14:18:40,842 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:18:40,842 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:18:40,846 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (43)] Forceful destruction successful, exit code 0 [2022-12-13 14:18:41,051 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (42)] Ended with exit code 0 [2022-12-13 14:18:41,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt,42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 14:18:41,243 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK === [create_dataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 89 more)] === [2022-12-13 14:18:41,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:18:41,245 INFO L85 PathProgramCache]: Analyzing trace with hash -1897094198, now seen corresponding path program 1 times [2022-12-13 14:18:41,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 14:18:41,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [323181510] [2022-12-13 14:18:41,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:18:41,247 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 14:18:41,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 14:18:41,250 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -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) [2022-12-13 14:18:41,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (44)] Waiting until timeout for monitored process [2022-12-13 14:18:41,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:18:41,492 INFO L263 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-13 14:18:41,494 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:18:41,557 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-13 14:18:41,572 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2022-12-13 14:18:41,578 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-13 14:18:41,578 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 14:18:41,578 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 14:18:41,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [323181510] [2022-12-13 14:18:41,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [323181510] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:18:41,579 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:18:41,579 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 14:18:41,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160205357] [2022-12-13 14:18:41,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:18:41,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 14:18:41,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 14:18:41,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 14:18:41,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 14:18:41,580 INFO L87 Difference]: Start difference. First operand 407 states and 459 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 14:18:41,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:18:41,880 INFO L93 Difference]: Finished difference Result 445 states and 497 transitions. [2022-12-13 14:18:41,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 14:18:41,881 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 57 [2022-12-13 14:18:41,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:18:41,882 INFO L225 Difference]: With dead ends: 445 [2022-12-13 14:18:41,882 INFO L226 Difference]: Without dead ends: 445 [2022-12-13 14:18:41,882 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-13 14:18:41,882 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 151 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 14:18:41,883 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 353 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 14:18:41,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2022-12-13 14:18:41,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 409. [2022-12-13 14:18:41,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 366 states have (on average 1.215846994535519) internal successors, (445), 395 states have internal predecessors, (445), 4 states have call successors, (4), 4 states have call predecessors, (4), 9 states have return successors, (12), 9 states have call predecessors, (12), 4 states have call successors, (12) [2022-12-13 14:18:41,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 461 transitions. [2022-12-13 14:18:41,890 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 461 transitions. Word has length 57 [2022-12-13 14:18:41,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:18:41,890 INFO L495 AbstractCegarLoop]: Abstraction has 409 states and 461 transitions. [2022-12-13 14:18:41,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 14:18:41,891 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 461 transitions. [2022-12-13 14:18:41,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-12-13 14:18:41,891 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:18:41,891 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:18:41,899 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (44)] Ended with exit code 0 [2022-12-13 14:18:42,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 14:18:42,092 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [create_dataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 89 more)] === [2022-12-13 14:18:42,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:18:42,094 INFO L85 PathProgramCache]: Analyzing trace with hash -1897093746, now seen corresponding path program 1 times [2022-12-13 14:18:42,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 14:18:42,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2030691665] [2022-12-13 14:18:42,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:18:42,096 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 [2022-12-13 14:18:42,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 14:18:42,099 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -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) [2022-12-13 14:18:42,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (45)] Waiting until timeout for monitored process [2022-12-13 14:18:42,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:18:42,361 INFO L263 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-13 14:18:42,363 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:18:42,414 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-13 14:18:42,436 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2022-12-13 14:18:42,443 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-13 14:18:42,443 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 14:18:42,443 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 14:18:42,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2030691665] [2022-12-13 14:18:42,443 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2030691665] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:18:42,443 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:18:42,443 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 14:18:42,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979852108] [2022-12-13 14:18:42,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:18:42,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 14:18:42,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 14:18:42,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 14:18:42,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-13 14:18:42,444 INFO L87 Difference]: Start difference. First operand 409 states and 461 transitions. Second operand has 6 states, 5 states have (on average 9.0) internal successors, (45), 6 states have internal predecessors, (45), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 14:18:42,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:18:42,973 INFO L93 Difference]: Finished difference Result 427 states and 479 transitions. [2022-12-13 14:18:42,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 14:18:42,973 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.0) internal successors, (45), 6 states have internal predecessors, (45), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 57 [2022-12-13 14:18:42,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:18:42,974 INFO L225 Difference]: With dead ends: 427 [2022-12-13 14:18:42,974 INFO L226 Difference]: Without dead ends: 427 [2022-12-13 14:18:42,975 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-12-13 14:18:42,975 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 118 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-13 14:18:42,975 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 338 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-13 14:18:42,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2022-12-13 14:18:42,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 411. [2022-12-13 14:18:42,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 411 states, 368 states have (on average 1.2173913043478262) internal successors, (448), 397 states have internal predecessors, (448), 4 states have call successors, (4), 4 states have call predecessors, (4), 9 states have return successors, (12), 9 states have call predecessors, (12), 4 states have call successors, (12) [2022-12-13 14:18:42,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 464 transitions. [2022-12-13 14:18:42,979 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 464 transitions. Word has length 57 [2022-12-13 14:18:42,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:18:42,979 INFO L495 AbstractCegarLoop]: Abstraction has 411 states and 464 transitions. [2022-12-13 14:18:42,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.0) internal successors, (45), 6 states have internal predecessors, (45), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 14:18:42,979 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 464 transitions. [2022-12-13 14:18:42,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-12-13 14:18:42,980 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:18:42,980 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:18:42,988 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (45)] Forceful destruction successful, exit code 0 [2022-12-13 14:18:43,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 14:18:43,181 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr31REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [create_dataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 89 more)] === [2022-12-13 14:18:43,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:18:43,182 INFO L85 PathProgramCache]: Analyzing trace with hash -1897093745, now seen corresponding path program 1 times [2022-12-13 14:18:43,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 14:18:43,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1486127497] [2022-12-13 14:18:43,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:18:43,185 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 [2022-12-13 14:18:43,185 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 14:18:43,186 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -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) [2022-12-13 14:18:43,187 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (46)] Waiting until timeout for monitored process [2022-12-13 14:18:43,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:18:43,556 INFO L263 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 29 conjunts are in the unsatisfiable core [2022-12-13 14:18:43,559 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:18:43,566 INFO L350 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 [2022-12-13 14:18:43,574 INFO L350 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 [2022-12-13 14:18:43,696 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-13 14:18:43,739 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 9 [2022-12-13 14:18:43,749 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_4146 (_ BitVec 32)) (create_data_~data~0.base (_ BitVec 32)) (v_arrayElimCell_120 (_ BitVec 32))) (and (= (select |c_old(#valid)| create_data_~data~0.base) (_ bv0 1)) (= (store (store |c_old(#length)| create_data_~data~0.base v_ArrVal_4146) v_arrayElimCell_120 (_ bv80 32)) |c_#length|))) is different from true [2022-12-13 14:18:43,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:18:43,946 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-12-13 14:18:43,946 INFO L350 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 2 case distinctions, treesize of input 15 treesize of output 27 [2022-12-13 14:18:43,962 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-12-13 14:18:43,962 INFO L350 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 [2022-12-13 14:18:44,055 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-13 14:18:44,070 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-13 14:18:44,210 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 21 [2022-12-13 14:18:44,218 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-12-13 14:18:44,257 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 5 not checked. [2022-12-13 14:18:44,258 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 14:18:44,465 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 32 [2022-12-13 14:18:44,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:18:44,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:18:44,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:18:44,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:18:52,905 WARN L233 SmtUtils]: Spent 8.13s on a formula simplification that was a NOOP. DAG size: 35 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 14:18:52,906 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 14:18:52,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1486127497] [2022-12-13 14:18:52,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1486127497] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 14:18:52,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1366015274] [2022-12-13 14:18:52,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:18:52,906 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-13 14:18:52,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/cvc4 [2022-12-13 14:18:52,907 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-13 14:18:52,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (47)] Waiting until timeout for monitored process [2022-12-13 14:18:53,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:18:53,491 INFO L263 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 26 conjunts are in the unsatisfiable core [2022-12-13 14:18:53,493 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:18:53,905 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-13 14:18:54,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:18:54,019 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 20 treesize of output 19 [2022-12-13 14:18:54,030 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-13 14:18:54,142 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-12-13 14:18:54,264 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-13 14:18:54,264 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 14 [2022-12-13 14:18:54,369 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-13 14:18:54,370 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 14:18:54,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1366015274] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:18:54,370 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 14:18:54,370 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [9] total 20 [2022-12-13 14:18:54,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656492401] [2022-12-13 14:18:54,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:18:54,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 14:18:54,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 14:18:54,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 14:18:54,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=457, Unknown=1, NotChecked=42, Total=552 [2022-12-13 14:18:54,371 INFO L87 Difference]: Start difference. First operand 411 states and 464 transitions. Second operand has 12 states, 12 states have (on average 3.75) internal successors, (45), 11 states have internal predecessors, (45), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 14:18:57,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:18:57,917 INFO L93 Difference]: Finished difference Result 536 states and 605 transitions. [2022-12-13 14:18:57,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 14:18:57,918 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.75) internal successors, (45), 11 states have internal predecessors, (45), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 57 [2022-12-13 14:18:57,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:18:57,919 INFO L225 Difference]: With dead ends: 536 [2022-12-13 14:18:57,919 INFO L226 Difference]: Without dead ends: 536 [2022-12-13 14:18:57,919 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 10.6s TimeCoverageRelationStatistics Valid=142, Invalid=983, Unknown=1, NotChecked=64, Total=1190 [2022-12-13 14:18:57,922 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 447 mSDsluCounter, 691 mSDsCounter, 0 mSdLazyCounter, 543 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 447 SdHoareTripleChecker+Valid, 784 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 543 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-12-13 14:18:57,922 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [447 Valid, 784 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 543 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-12-13 14:18:57,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2022-12-13 14:18:57,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 411. [2022-12-13 14:18:57,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 411 states, 368 states have (on average 1.2119565217391304) internal successors, (446), 397 states have internal predecessors, (446), 4 states have call successors, (4), 4 states have call predecessors, (4), 9 states have return successors, (12), 9 states have call predecessors, (12), 4 states have call successors, (12) [2022-12-13 14:18:57,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 462 transitions. [2022-12-13 14:18:57,929 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 462 transitions. Word has length 57 [2022-12-13 14:18:57,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:18:57,930 INFO L495 AbstractCegarLoop]: Abstraction has 411 states and 462 transitions. [2022-12-13 14:18:57,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.75) internal successors, (45), 11 states have internal predecessors, (45), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 14:18:57,930 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 462 transitions. [2022-12-13 14:18:57,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-12-13 14:18:57,930 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:18:57,931 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:18:57,936 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (47)] Ended with exit code 0 [2022-12-13 14:18:58,147 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (46)] Ended with exit code 0 [2022-12-13 14:18:58,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt,46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 14:18:58,332 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [create_dataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 89 more)] === [2022-12-13 14:18:58,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:18:58,334 INFO L85 PathProgramCache]: Analyzing trace with hash 1768854146, now seen corresponding path program 1 times [2022-12-13 14:18:58,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 14:18:58,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1050536365] [2022-12-13 14:18:58,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:18:58,336 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 [2022-12-13 14:18:58,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 14:18:58,337 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -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) [2022-12-13 14:18:58,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (48)] Waiting until timeout for monitored process [2022-12-13 14:18:58,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:18:58,879 INFO L263 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 25 conjunts are in the unsatisfiable core [2022-12-13 14:18:58,882 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:18:58,904 INFO L350 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 [2022-12-13 14:18:58,965 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2022-12-13 14:18:59,060 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-13 14:18:59,166 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-12-13 14:19:00,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:19:00,242 INFO L321 Elim1Store]: treesize reduction 82, result has 29.3 percent of original size [2022-12-13 14:19:00,242 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 25 treesize of output 49 [2022-12-13 14:19:00,335 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-12-13 14:19:00,336 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 14:19:00,500 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 14:19:00,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1050536365] [2022-12-13 14:19:00,500 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1050536365] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 14:19:00,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [393160370] [2022-12-13 14:19:00,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:19:00,500 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-13 14:19:00,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/cvc4 [2022-12-13 14:19:00,501 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-13 14:19:00,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (49)] Waiting until timeout for monitored process [2022-12-13 14:19:01,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:19:01,221 INFO L263 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 15 conjunts are in the unsatisfiable core [2022-12-13 14:19:01,223 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:19:01,320 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2022-12-13 14:19:01,901 WARN L859 $PredicateComparison]: unable to prove that (and (bvult c_create_data_~nextData~0.base |c_#StackHeapBarrier|) (exists ((v_ArrVal_4674 (_ BitVec 1)) (v_ArrVal_4675 (_ BitVec 1)) (create_data_~data~0.base (_ BitVec 32)) (v_ArrVal_4676 (_ BitVec 1)) (|create_data_#t~malloc7.base| (_ BitVec 32))) (and (bvult create_data_~data~0.base |c_#StackHeapBarrier|) (bvult |create_data_#t~malloc7.base| |c_#StackHeapBarrier|) (= (store (store (store |c_old(#valid)| create_data_~data~0.base v_ArrVal_4674) |create_data_#t~malloc7.base| v_ArrVal_4675) c_create_data_~nextData~0.base v_ArrVal_4676) |c_#valid|))) (not (= (bvadd |c_#StackHeapBarrier| (_ bv1 32)) (_ bv0 32)))) is different from true [2022-12-13 14:19:02,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:19:02,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:19:02,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:19:02,336 INFO L321 Elim1Store]: treesize reduction 39, result has 40.0 percent of original size [2022-12-13 14:19:02,337 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 20 treesize of output 45 [2022-12-13 14:19:02,396 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-13 14:19:02,396 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 14:19:02,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [393160370] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 14:19:02,568 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 14:19:02,568 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 19 [2022-12-13 14:19:02,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194190519] [2022-12-13 14:19:02,568 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 14:19:02,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-12-13 14:19:02,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 14:19:02,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-12-13 14:19:02,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=383, Unknown=7, NotChecked=40, Total=506 [2022-12-13 14:19:02,569 INFO L87 Difference]: Start difference. First operand 411 states and 462 transitions. Second operand has 20 states, 19 states have (on average 4.842105263157895) internal successors, (92), 20 states have internal predecessors, (92), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 14:19:20,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:19:20,944 INFO L93 Difference]: Finished difference Result 514 states and 574 transitions. [2022-12-13 14:19:20,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 14:19:20,944 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 4.842105263157895) internal successors, (92), 20 states have internal predecessors, (92), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 57 [2022-12-13 14:19:20,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:19:20,945 INFO L225 Difference]: With dead ends: 514 [2022-12-13 14:19:20,945 INFO L226 Difference]: Without dead ends: 514 [2022-12-13 14:19:20,946 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 13.6s TimeCoverageRelationStatistics Valid=165, Invalid=755, Unknown=14, NotChecked=58, Total=992 [2022-12-13 14:19:20,946 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 703 mSDsluCounter, 513 mSDsCounter, 0 mSdLazyCounter, 726 mSolverCounterSat, 38 mSolverCounterUnsat, 241 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 703 SdHoareTripleChecker+Valid, 585 SdHoareTripleChecker+Invalid, 1190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 726 IncrementalHoareTripleChecker+Invalid, 241 IncrementalHoareTripleChecker+Unknown, 185 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-12-13 14:19:20,946 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [703 Valid, 585 Invalid, 1190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 726 Invalid, 241 Unknown, 185 Unchecked, 6.0s Time] [2022-12-13 14:19:20,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2022-12-13 14:19:20,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 441. [2022-12-13 14:19:20,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 396 states have (on average 1.2045454545454546) internal successors, (477), 426 states have internal predecessors, (477), 4 states have call successors, (4), 4 states have call predecessors, (4), 11 states have return successors, (16), 10 states have call predecessors, (16), 4 states have call successors, (16) [2022-12-13 14:19:20,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 497 transitions. [2022-12-13 14:19:20,951 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 497 transitions. Word has length 57 [2022-12-13 14:19:20,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:19:20,952 INFO L495 AbstractCegarLoop]: Abstraction has 441 states and 497 transitions. [2022-12-13 14:19:20,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 4.842105263157895) internal successors, (92), 20 states have internal predecessors, (92), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 14:19:20,952 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 497 transitions. [2022-12-13 14:19:20,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-12-13 14:19:20,952 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:19:20,952 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:19:20,963 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (48)] Ended with exit code 0 [2022-12-13 14:19:21,171 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (49)] Ended with exit code 0 [2022-12-13 14:19:21,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt [2022-12-13 14:19:21,354 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [create_dataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 89 more)] === [2022-12-13 14:19:21,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:19:21,355 INFO L85 PathProgramCache]: Analyzing trace with hash 1768854147, now seen corresponding path program 1 times [2022-12-13 14:19:21,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 14:19:21,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1216367229] [2022-12-13 14:19:21,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:19:21,356 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 [2022-12-13 14:19:21,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 14:19:21,358 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -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) [2022-12-13 14:19:21,359 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (50)] Waiting until timeout for monitored process [2022-12-13 14:19:21,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:19:21,986 INFO L263 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 26 conjunts are in the unsatisfiable core [2022-12-13 14:19:21,988 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:19:22,006 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-12-13 14:19:22,006 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2022-12-13 14:19:22,015 INFO L350 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 [2022-12-13 14:19:22,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:19:22,047 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-12-13 14:19:22,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:19:22,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:19:22,068 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-12-13 14:19:22,069 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 18 [2022-12-13 14:19:22,244 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2022-12-13 14:19:22,248 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-13 14:19:25,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:19:25,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:19:25,689 INFO L321 Elim1Store]: treesize reduction 43, result has 41.9 percent of original size [2022-12-13 14:19:25,690 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 18 treesize of output 39 [2022-12-13 14:19:25,721 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-12-13 14:19:25,721 INFO L350 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 [2022-12-13 14:19:25,873 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-13 14:19:25,874 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 14:19:28,278 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 14:19:28,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1216367229] [2022-12-13 14:19:28,278 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1216367229] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 14:19:28,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1325875877] [2022-12-13 14:19:28,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:19:28,278 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-13 14:19:28,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/cvc4 [2022-12-13 14:19:28,279 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-13 14:19:28,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (51)] Waiting until timeout for monitored process [2022-12-13 14:19:29,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:19:29,209 INFO L263 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 17 conjunts are in the unsatisfiable core [2022-12-13 14:19:29,211 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:19:29,218 INFO L350 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 [2022-12-13 14:19:29,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:19:29,279 INFO L350 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 12 treesize of output 14 [2022-12-13 14:19:29,505 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-13 14:19:32,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:19:32,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:19:32,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:19:32,814 INFO L321 Elim1Store]: treesize reduction 33, result has 40.0 percent of original size [2022-12-13 14:19:32,814 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 40 [2022-12-13 14:19:32,972 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-13 14:19:32,973 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 14:19:39,640 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1325875877] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 14:19:39,640 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 14:19:39,640 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 16 [2022-12-13 14:19:39,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918816338] [2022-12-13 14:19:39,641 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 14:19:39,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-12-13 14:19:39,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 14:19:39,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-12-13 14:19:39,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=303, Unknown=15, NotChecked=0, Total=380 [2022-12-13 14:19:39,641 INFO L87 Difference]: Start difference. First operand 441 states and 497 transitions. Second operand has 17 states, 16 states have (on average 5.625) internal successors, (90), 17 states have internal predecessors, (90), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 14:19:41,978 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 14:19:52,072 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 14:19:54,078 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 14:19:56,087 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 14:19:58,204 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 14:20:00,720 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 14:20:03,582 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 14:20:05,665 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 14:20:07,224 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 14:20:09,488 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 14:20:14,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:20:14,883 INFO L93 Difference]: Finished difference Result 809 states and 887 transitions. [2022-12-13 14:20:14,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-13 14:20:14,885 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 5.625) internal successors, (90), 17 states have internal predecessors, (90), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 57 [2022-12-13 14:20:14,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:20:14,886 INFO L225 Difference]: With dead ends: 809 [2022-12-13 14:20:14,886 INFO L226 Difference]: Without dead ends: 809 [2022-12-13 14:20:14,886 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 18.8s TimeCoverageRelationStatistics Valid=217, Invalid=800, Unknown=39, NotChecked=0, Total=1056 [2022-12-13 14:20:14,887 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 647 mSDsluCounter, 734 mSDsCounter, 0 mSdLazyCounter, 1030 mSolverCounterSat, 36 mSolverCounterUnsat, 340 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 647 SdHoareTripleChecker+Valid, 829 SdHoareTripleChecker+Invalid, 1406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1030 IncrementalHoareTripleChecker+Invalid, 340 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.1s IncrementalHoareTripleChecker+Time [2022-12-13 14:20:14,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [647 Valid, 829 Invalid, 1406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1030 Invalid, 340 Unknown, 0 Unchecked, 30.1s Time] [2022-12-13 14:20:14,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 809 states. [2022-12-13 14:20:14,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 809 to 480. [2022-12-13 14:20:14,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 480 states, 434 states have (on average 1.195852534562212) internal successors, (519), 463 states have internal predecessors, (519), 4 states have call successors, (4), 4 states have call predecessors, (4), 12 states have return successors, (14), 12 states have call predecessors, (14), 4 states have call successors, (14) [2022-12-13 14:20:14,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 537 transitions. [2022-12-13 14:20:14,892 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 537 transitions. Word has length 57 [2022-12-13 14:20:14,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:20:14,892 INFO L495 AbstractCegarLoop]: Abstraction has 480 states and 537 transitions. [2022-12-13 14:20:14,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 5.625) internal successors, (90), 17 states have internal predecessors, (90), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 14:20:14,893 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 537 transitions. [2022-12-13 14:20:14,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-12-13 14:20:14,893 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:20:14,893 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:20:14,900 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (51)] Ended with exit code 0 [2022-12-13 14:20:15,132 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (50)] Ended with exit code 0 [2022-12-13 14:20:15,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt,50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 14:20:15,295 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [create_dataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 89 more)] === [2022-12-13 14:20:15,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:20:15,297 INFO L85 PathProgramCache]: Analyzing trace with hash -2094859878, now seen corresponding path program 1 times [2022-12-13 14:20:15,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 14:20:15,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [861997912] [2022-12-13 14:20:15,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:20:15,297 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 [2022-12-13 14:20:15,298 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 14:20:15,298 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -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) [2022-12-13 14:20:15,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (52)] Waiting until timeout for monitored process [2022-12-13 14:20:15,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:20:15,837 INFO L263 TraceCheckSpWp]: Trace formula consists of 431 conjuncts, 17 conjunts are in the unsatisfiable core [2022-12-13 14:20:15,839 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:20:15,843 INFO L350 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 [2022-12-13 14:20:15,850 INFO L350 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 [2022-12-13 14:20:15,928 WARN L859 $PredicateComparison]: unable to prove that (exists ((create_data_~data~0.base (_ BitVec 32))) (and (= (select |c_old(#valid)| create_data_~data~0.base) (_ bv0 1)) (exists ((v_ArrVal_5276 (_ BitVec 32)) (v_ArrVal_5275 (_ BitVec 32))) (= (store (store |c_old(#length)| create_data_~data~0.base v_ArrVal_5276) |c_create_data_#t~malloc7.base| v_ArrVal_5275) |c_#length|)) (exists ((v_ArrVal_5277 (_ BitVec 1))) (= (_ bv0 1) (select (store |c_old(#valid)| create_data_~data~0.base v_ArrVal_5277) |c_create_data_#t~malloc7.base|))))) is different from true [2022-12-13 14:20:15,943 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_5276 (_ BitVec 32)) (v_ArrVal_5275 (_ BitVec 32)) (create_data_~data~0.base (_ BitVec 32)) (v_ArrVal_5277 (_ BitVec 1)) (|create_data_#t~malloc7.base| (_ BitVec 32))) (and (= (select |c_old(#valid)| create_data_~data~0.base) (_ bv0 1)) (= (_ bv0 1) (select (store |c_old(#valid)| create_data_~data~0.base v_ArrVal_5277) |create_data_#t~malloc7.base|)) (= (store (store |c_old(#length)| create_data_~data~0.base v_ArrVal_5276) |create_data_#t~malloc7.base| v_ArrVal_5275) |c_#length|))) is different from true [2022-12-13 14:20:16,314 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_5276 (_ BitVec 32)) (v_ArrVal_5275 (_ BitVec 32)) (create_data_~data~0.base (_ BitVec 32)) (v_ArrVal_5277 (_ BitVec 1)) (|create_data_#t~malloc7.base| (_ BitVec 32))) (and (= (select |c_old(#valid)| create_data_~data~0.base) (_ bv0 1)) (= (store (store (store |c_old(#length)| create_data_~data~0.base v_ArrVal_5276) |create_data_#t~malloc7.base| v_ArrVal_5275) c_create_data_~nextData~0.base (_ bv16 32)) |c_#length|) (= (_ bv0 1) (select (store |c_old(#valid)| create_data_~data~0.base v_ArrVal_5277) |create_data_#t~malloc7.base|)))) is different from true [2022-12-13 14:20:16,403 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_5276 (_ BitVec 32)) (v_ArrVal_5275 (_ BitVec 32)) (create_data_~data~0.base (_ BitVec 32)) (create_data_~nextData~0.base (_ BitVec 32)) (v_ArrVal_5277 (_ BitVec 1)) (|create_data_#t~malloc7.base| (_ BitVec 32))) (and (= (select |c_old(#valid)| create_data_~data~0.base) (_ bv0 1)) (= (store (store (store |c_old(#length)| create_data_~data~0.base v_ArrVal_5276) |create_data_#t~malloc7.base| v_ArrVal_5275) create_data_~nextData~0.base (_ bv16 32)) |c_#length|) (= (_ bv0 1) (select (store |c_old(#valid)| create_data_~data~0.base v_ArrVal_5277) |create_data_#t~malloc7.base|)))) is different from true [2022-12-13 14:20:16,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:20:16,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:20:16,565 INFO L321 Elim1Store]: treesize reduction 43, result has 41.9 percent of original size [2022-12-13 14:20:16,565 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 18 treesize of output 39 [2022-12-13 14:20:16,611 INFO L321 Elim1Store]: treesize reduction 17, result has 45.2 percent of original size [2022-12-13 14:20:16,611 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 31 treesize of output 38 [2022-12-13 14:20:16,660 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 1 not checked. [2022-12-13 14:20:16,660 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 14:20:18,858 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 (bvadd (_ bv4 32) |c_ULTIMATE.start_append_~node~0#1.offset|))) (and (or (forall ((v_create_data_~data~0.base_111 (_ BitVec 32)) (v_ArrVal_5291 (_ BitVec 1)) (v_ArrVal_5292 (_ BitVec 32))) (or (not (= (_ bv0 1) (select (store |c_#valid| v_create_data_~data~0.base_111 v_ArrVal_5291) v_ArrVal_5292))) (not (= (_ bv0 1) (select |c_#valid| v_create_data_~data~0.base_111))))) (bvule |c_ULTIMATE.start_append_~node~0#1.offset| .cse0)) (forall ((v_create_data_~data~0.base_111 (_ BitVec 32))) (or (forall ((v_ArrVal_5291 (_ BitVec 1)) (v_ArrVal_5292 (_ BitVec 32))) (or (not (= (_ bv0 1) (select (store |c_#valid| v_create_data_~data~0.base_111 v_ArrVal_5291) v_ArrVal_5292))) (forall ((v_ArrVal_5294 (_ BitVec 32)) (v_ArrVal_5293 (_ BitVec 32)) (v_create_data_~nextData~0.base_40 (_ BitVec 32))) (bvule .cse0 (select (store (store (store |c_#length| v_create_data_~data~0.base_111 v_ArrVal_5293) v_ArrVal_5292 v_ArrVal_5294) v_create_data_~nextData~0.base_40 (_ bv16 32)) |c_ULTIMATE.start_append_~node~0#1.base|))))) (not (= (_ bv0 1) (select |c_#valid| v_create_data_~data~0.base_111))))))) is different from false [2022-12-13 14:20:18,867 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 14:20:18,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [861997912] [2022-12-13 14:20:18,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [861997912] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 14:20:18,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [344814441] [2022-12-13 14:20:18,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:20:18,867 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-13 14:20:18,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/cvc4 [2022-12-13 14:20:18,868 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-13 14:20:18,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (53)] Waiting until timeout for monitored process [2022-12-13 14:20:19,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:20:19,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 431 conjuncts, 20 conjunts are in the unsatisfiable core [2022-12-13 14:20:19,854 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:20:19,875 INFO L350 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 [2022-12-13 14:20:19,880 INFO L350 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 [2022-12-13 14:20:20,280 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_5481 (_ BitVec 32)) (v_ArrVal_5480 (_ BitVec 32)) (create_data_~data~0.base (_ BitVec 32)) (|create_data_#t~malloc7.base| (_ BitVec 32))) (and (= (select |c_old(#valid)| create_data_~data~0.base) (_ bv0 1)) (= (_ bv0 1) (select (store |c_old(#valid)| create_data_~data~0.base (_ bv1 1)) |create_data_#t~malloc7.base|)) (= (store (store (store |c_old(#length)| create_data_~data~0.base v_ArrVal_5481) |create_data_#t~malloc7.base| v_ArrVal_5480) c_create_data_~nextData~0.base (_ bv16 32)) |c_#length|))) is different from true [2022-12-13 14:20:20,361 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_5481 (_ BitVec 32)) (v_ArrVal_5480 (_ BitVec 32)) (create_data_~data~0.base (_ BitVec 32)) (create_data_~nextData~0.base (_ BitVec 32)) (|create_data_#t~malloc7.base| (_ BitVec 32))) (and (= (select |c_old(#valid)| create_data_~data~0.base) (_ bv0 1)) (= (_ bv0 1) (select (store |c_old(#valid)| create_data_~data~0.base (_ bv1 1)) |create_data_#t~malloc7.base|)) (= (store (store (store |c_old(#length)| create_data_~data~0.base v_ArrVal_5481) |create_data_#t~malloc7.base| v_ArrVal_5480) create_data_~nextData~0.base (_ bv16 32)) |c_#length|))) is different from true [2022-12-13 14:20:20,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:20:20,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:20:20,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:20:20,490 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-12-13 14:20:20,490 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 18 treesize of output 36 [2022-12-13 14:20:20,528 INFO L321 Elim1Store]: treesize reduction 22, result has 29.0 percent of original size [2022-12-13 14:20:20,528 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 22 treesize of output 24 [2022-12-13 14:20:20,548 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 1 not checked. [2022-12-13 14:20:20,548 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 14:20:22,786 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [344814441] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 14:20:22,786 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 14:20:22,786 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2022-12-13 14:20:22,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300906246] [2022-12-13 14:20:22,786 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 14:20:22,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 14:20:22,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 14:20:22,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 14:20:22,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=61, Unknown=7, NotChecked=140, Total=240 [2022-12-13 14:20:22,787 INFO L87 Difference]: Start difference. First operand 480 states and 537 transitions. Second operand has 13 states, 12 states have (on average 7.083333333333333) internal successors, (85), 12 states have internal predecessors, (85), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-13 14:20:25,001 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_5276 (_ BitVec 32)) (v_ArrVal_5275 (_ BitVec 32)) (create_data_~data~0.base (_ BitVec 32)) (v_ArrVal_5277 (_ BitVec 1)) (|create_data_#t~malloc7.base| (_ BitVec 32))) (and (= (select |c_old(#valid)| create_data_~data~0.base) (_ bv0 1)) (= (_ bv0 1) (select (store |c_old(#valid)| create_data_~data~0.base v_ArrVal_5277) |create_data_#t~malloc7.base|)) (= (store (store |c_old(#length)| create_data_~data~0.base v_ArrVal_5276) |create_data_#t~malloc7.base| v_ArrVal_5275) |c_#length|))) (exists ((create_data_~data~0.base (_ BitVec 32)) (|create_data_#t~malloc7.base| (_ BitVec 32))) (and (= (select |c_old(#valid)| create_data_~data~0.base) (_ bv0 1)) (= (_ bv0 1) (select (store |c_old(#valid)| create_data_~data~0.base (_ bv1 1)) |create_data_#t~malloc7.base|)) (exists ((v_ArrVal_5481 (_ BitVec 32)) (v_ArrVal_5480 (_ BitVec 32))) (= |c_#length| (store (store |c_old(#length)| create_data_~data~0.base v_ArrVal_5481) |create_data_#t~malloc7.base| v_ArrVal_5480)))))) is different from true [2022-12-13 14:20:25,168 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_5481 (_ BitVec 32)) (v_ArrVal_5480 (_ BitVec 32)) (create_data_~data~0.base (_ BitVec 32)) (|create_data_#t~malloc7.base| (_ BitVec 32))) (and (= (select |c_old(#valid)| create_data_~data~0.base) (_ bv0 1)) (= (_ bv0 1) (select (store |c_old(#valid)| create_data_~data~0.base (_ bv1 1)) |create_data_#t~malloc7.base|)) (= (store (store (store |c_old(#length)| create_data_~data~0.base v_ArrVal_5481) |create_data_#t~malloc7.base| v_ArrVal_5480) c_create_data_~nextData~0.base (_ bv16 32)) |c_#length|))) (exists ((v_ArrVal_5276 (_ BitVec 32)) (v_ArrVal_5275 (_ BitVec 32)) (create_data_~data~0.base (_ BitVec 32)) (v_ArrVal_5277 (_ BitVec 1)) (|create_data_#t~malloc7.base| (_ BitVec 32))) (and (= (select |c_old(#valid)| create_data_~data~0.base) (_ bv0 1)) (= (store (store (store |c_old(#length)| create_data_~data~0.base v_ArrVal_5276) |create_data_#t~malloc7.base| v_ArrVal_5275) c_create_data_~nextData~0.base (_ bv16 32)) |c_#length|) (= (_ bv0 1) (select (store |c_old(#valid)| create_data_~data~0.base v_ArrVal_5277) |create_data_#t~malloc7.base|))))) is different from true [2022-12-13 14:20:25,350 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_5481 (_ BitVec 32)) (v_ArrVal_5480 (_ BitVec 32)) (create_data_~data~0.base (_ BitVec 32)) (create_data_~nextData~0.base (_ BitVec 32)) (|create_data_#t~malloc7.base| (_ BitVec 32))) (and (= (select |c_old(#valid)| create_data_~data~0.base) (_ bv0 1)) (= (_ bv0 1) (select (store |c_old(#valid)| create_data_~data~0.base (_ bv1 1)) |create_data_#t~malloc7.base|)) (= (store (store (store |c_old(#length)| create_data_~data~0.base v_ArrVal_5481) |create_data_#t~malloc7.base| v_ArrVal_5480) create_data_~nextData~0.base (_ bv16 32)) |c_#length|))) (exists ((v_ArrVal_5276 (_ BitVec 32)) (v_ArrVal_5275 (_ BitVec 32)) (create_data_~data~0.base (_ BitVec 32)) (create_data_~nextData~0.base (_ BitVec 32)) (v_ArrVal_5277 (_ BitVec 1)) (|create_data_#t~malloc7.base| (_ BitVec 32))) (and (= (select |c_old(#valid)| create_data_~data~0.base) (_ bv0 1)) (= (store (store (store |c_old(#length)| create_data_~data~0.base v_ArrVal_5276) |create_data_#t~malloc7.base| v_ArrVal_5275) create_data_~nextData~0.base (_ bv16 32)) |c_#length|) (= (_ bv0 1) (select (store |c_old(#valid)| create_data_~data~0.base v_ArrVal_5277) |create_data_#t~malloc7.base|))))) is different from true [2022-12-13 14:20:27,756 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 14:20:28,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:20:28,265 INFO L93 Difference]: Finished difference Result 689 states and 771 transitions. [2022-12-13 14:20:28,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 14:20:28,266 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 7.083333333333333) internal successors, (85), 12 states have internal predecessors, (85), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 59 [2022-12-13 14:20:28,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:20:28,268 INFO L225 Difference]: With dead ends: 689 [2022-12-13 14:20:28,268 INFO L226 Difference]: Without dead ends: 689 [2022-12-13 14:20:28,269 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 10 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=52, Invalid=110, Unknown=10, NotChecked=290, Total=462 [2022-12-13 14:20:28,269 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 190 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 5 mSolverCounterUnsat, 29 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 586 SdHoareTripleChecker+Invalid, 2204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 29 IncrementalHoareTripleChecker+Unknown, 1709 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-12-13 14:20:28,269 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 586 Invalid, 2204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 461 Invalid, 29 Unknown, 1709 Unchecked, 3.3s Time] [2022-12-13 14:20:28,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 689 states. [2022-12-13 14:20:28,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 689 to 486. [2022-12-13 14:20:28,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 486 states, 440 states have (on average 1.1977272727272728) internal successors, (527), 469 states have internal predecessors, (527), 4 states have call successors, (4), 4 states have call predecessors, (4), 12 states have return successors, (14), 12 states have call predecessors, (14), 4 states have call successors, (14) [2022-12-13 14:20:28,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 486 states to 486 states and 545 transitions. [2022-12-13 14:20:28,274 INFO L78 Accepts]: Start accepts. Automaton has 486 states and 545 transitions. Word has length 59 [2022-12-13 14:20:28,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:20:28,274 INFO L495 AbstractCegarLoop]: Abstraction has 486 states and 545 transitions. [2022-12-13 14:20:28,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 7.083333333333333) internal successors, (85), 12 states have internal predecessors, (85), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-13 14:20:28,274 INFO L276 IsEmpty]: Start isEmpty. Operand 486 states and 545 transitions. [2022-12-13 14:20:28,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-12-13 14:20:28,275 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:20:28,275 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:20:28,286 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (52)] Ended with exit code 0 [2022-12-13 14:20:28,486 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (53)] Ended with exit code 0 [2022-12-13 14:20:28,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt [2022-12-13 14:20:28,677 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr31REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [create_dataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 89 more)] === [2022-12-13 14:20:28,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:20:28,678 INFO L85 PathProgramCache]: Analyzing trace with hash -1611932791, now seen corresponding path program 1 times [2022-12-13 14:20:28,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 14:20:28,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [329667343] [2022-12-13 14:20:28,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:20:28,680 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 [2022-12-13 14:20:28,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 14:20:28,682 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -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) [2022-12-13 14:20:28,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (54)] Waiting until timeout for monitored process [2022-12-13 14:20:29,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:20:29,118 INFO L263 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 30 conjunts are in the unsatisfiable core [2022-12-13 14:20:29,121 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:20:29,130 INFO L350 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 [2022-12-13 14:20:29,143 INFO L350 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 [2022-12-13 14:20:29,287 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-13 14:20:29,335 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 9 [2022-12-13 14:20:29,345 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_5610 (_ BitVec 32)) (v_arrayElimCell_158 (_ BitVec 32)) (create_data_~data~0.base (_ BitVec 32))) (and (= (select |c_old(#valid)| create_data_~data~0.base) (_ bv0 1)) (= (store (store |c_old(#length)| create_data_~data~0.base v_ArrVal_5610) v_arrayElimCell_158 (_ bv80 32)) |c_#length|))) is different from true [2022-12-13 14:20:29,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:20:29,617 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-12-13 14:20:29,617 INFO L350 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 2 case distinctions, treesize of input 15 treesize of output 27 [2022-12-13 14:20:29,637 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-12-13 14:20:29,638 INFO L350 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 [2022-12-13 14:20:29,754 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-13 14:20:29,767 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-13 14:20:30,020 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 21 [2022-12-13 14:20:30,032 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-12-13 14:20:30,081 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 5 not checked. [2022-12-13 14:20:30,081 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 14:20:30,353 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 32 [2022-12-13 14:20:30,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:20:30,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:20:30,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:20:30,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:20:35,028 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 14:20:35,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [329667343] [2022-12-13 14:20:35,028 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [329667343] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 14:20:35,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [373146437] [2022-12-13 14:20:35,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:20:35,028 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-13 14:20:35,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/cvc4 [2022-12-13 14:20:35,029 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-13 14:20:35,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (55)] Waiting until timeout for monitored process [2022-12-13 14:20:35,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:20:35,904 INFO L263 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 30 conjunts are in the unsatisfiable core [2022-12-13 14:20:35,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:20:35,952 INFO L350 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 [2022-12-13 14:20:35,969 INFO L350 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 [2022-12-13 14:20:36,148 WARN L859 $PredicateComparison]: unable to prove that (exists ((create_data_~data~0.base (_ BitVec 32))) (and (= (select |c_old(#valid)| create_data_~data~0.base) (_ bv0 1)) (exists ((v_ArrVal_5739 (_ BitVec 32))) (= (store (store |c_old(#length)| create_data_~data~0.base v_ArrVal_5739) |c_create_data_#t~malloc7.base| (_ bv80 32)) |c_#length|)))) is different from true [2022-12-13 14:20:36,160 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_5739 (_ BitVec 32)) (create_data_~data~0.base (_ BitVec 32)) (|create_data_#t~malloc7.base| (_ BitVec 32))) (and (= (select |c_old(#valid)| create_data_~data~0.base) (_ bv0 1)) (= |c_#length| (store (store |c_old(#length)| create_data_~data~0.base v_ArrVal_5739) |create_data_#t~malloc7.base| (_ bv80 32))))) is different from true [2022-12-13 14:20:36,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:20:36,444 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-12-13 14:20:36,445 INFO L350 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 2 case distinctions, treesize of input 15 treesize of output 27 [2022-12-13 14:20:36,464 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-12-13 14:20:36,464 INFO L350 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 [2022-12-13 14:20:36,610 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-13 14:20:36,619 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-13 14:20:37,034 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 21 [2022-12-13 14:20:37,037 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-12-13 14:20:37,074 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-13 14:20:37,074 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 14:20:37,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [373146437] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:20:37,075 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 14:20:37,075 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [9] total 16 [2022-12-13 14:20:37,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898813738] [2022-12-13 14:20:37,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:20:37,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 14:20:37,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 14:20:37,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 14:20:37,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=257, Unknown=3, NotChecked=102, Total=420 [2022-12-13 14:20:37,076 INFO L87 Difference]: Start difference. First operand 486 states and 545 transitions. Second operand has 11 states, 10 states have (on average 4.9) internal successors, (49), 11 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 14:20:38,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:20:38,551 INFO L93 Difference]: Finished difference Result 693 states and 771 transitions. [2022-12-13 14:20:38,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 14:20:38,552 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 4.9) internal successors, (49), 11 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 61 [2022-12-13 14:20:38,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:20:38,553 INFO L225 Difference]: With dead ends: 693 [2022-12-13 14:20:38,553 INFO L226 Difference]: Without dead ends: 693 [2022-12-13 14:20:38,554 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 119 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=90, Invalid=339, Unknown=3, NotChecked=120, Total=552 [2022-12-13 14:20:38,554 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 339 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 339 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 806 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 419 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-13 14:20:38,554 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [339 Valid, 461 Invalid, 806 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 382 Invalid, 0 Unknown, 419 Unchecked, 1.0s Time] [2022-12-13 14:20:38,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states. [2022-12-13 14:20:38,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 534. [2022-12-13 14:20:38,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 534 states, 485 states have (on average 1.1979381443298969) internal successors, (581), 515 states have internal predecessors, (581), 6 states have call successors, (6), 4 states have call predecessors, (6), 13 states have return successors, (23), 14 states have call predecessors, (23), 6 states have call successors, (23) [2022-12-13 14:20:38,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 610 transitions. [2022-12-13 14:20:38,559 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 610 transitions. Word has length 61 [2022-12-13 14:20:38,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:20:38,560 INFO L495 AbstractCegarLoop]: Abstraction has 534 states and 610 transitions. [2022-12-13 14:20:38,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 4.9) internal successors, (49), 11 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 14:20:38,560 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 610 transitions. [2022-12-13 14:20:38,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-12-13 14:20:38,561 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:20:38,561 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:20:38,568 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (55)] Ended with exit code 0 [2022-12-13 14:20:38,797 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (54)] Forceful destruction successful, exit code 0 [2022-12-13 14:20:38,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt,54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 14:20:38,963 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [create_dataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 89 more)] === [2022-12-13 14:20:38,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:20:38,964 INFO L85 PathProgramCache]: Analyzing trace with hash 939726753, now seen corresponding path program 1 times [2022-12-13 14:20:38,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 14:20:38,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1650461467] [2022-12-13 14:20:38,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:20:38,966 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 [2022-12-13 14:20:38,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 14:20:38,967 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -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) [2022-12-13 14:20:38,969 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (56)] Waiting until timeout for monitored process [2022-12-13 14:20:39,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:20:39,326 INFO L263 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-13 14:20:39,328 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:20:39,407 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-13 14:20:39,463 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2022-12-13 14:20:39,479 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-13 14:20:39,479 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 14:20:39,480 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 14:20:39,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1650461467] [2022-12-13 14:20:39,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1650461467] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:20:39,480 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:20:39,480 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 14:20:39,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166241041] [2022-12-13 14:20:39,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:20:39,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 14:20:39,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 14:20:39,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 14:20:39,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-13 14:20:39,481 INFO L87 Difference]: Start difference. First operand 534 states and 610 transitions. Second operand has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 14:20:40,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:20:40,096 INFO L93 Difference]: Finished difference Result 549 states and 624 transitions. [2022-12-13 14:20:40,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 14:20:40,097 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2022-12-13 14:20:40,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:20:40,098 INFO L225 Difference]: With dead ends: 549 [2022-12-13 14:20:40,098 INFO L226 Difference]: Without dead ends: 549 [2022-12-13 14:20:40,098 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-12-13 14:20:40,099 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 127 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-13 14:20:40,099 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 333 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-13 14:20:40,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2022-12-13 14:20:40,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 537. [2022-12-13 14:20:40,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 488 states have (on average 1.1987704918032787) internal successors, (585), 518 states have internal predecessors, (585), 6 states have call successors, (6), 4 states have call predecessors, (6), 13 states have return successors, (23), 14 states have call predecessors, (23), 6 states have call successors, (23) [2022-12-13 14:20:40,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 614 transitions. [2022-12-13 14:20:40,105 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 614 transitions. Word has length 64 [2022-12-13 14:20:40,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:20:40,106 INFO L495 AbstractCegarLoop]: Abstraction has 537 states and 614 transitions. [2022-12-13 14:20:40,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 14:20:40,106 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 614 transitions. [2022-12-13 14:20:40,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-12-13 14:20:40,106 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:20:40,106 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:20:40,115 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (56)] Ended with exit code 0 [2022-12-13 14:20:40,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 14:20:40,307 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr35REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [create_dataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 89 more)] === [2022-12-13 14:20:40,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:20:40,309 INFO L85 PathProgramCache]: Analyzing trace with hash 939726754, now seen corresponding path program 1 times [2022-12-13 14:20:40,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 14:20:40,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1755587043] [2022-12-13 14:20:40,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:20:40,311 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 [2022-12-13 14:20:40,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 14:20:40,314 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -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) [2022-12-13 14:20:40,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (57)] Waiting until timeout for monitored process [2022-12-13 14:20:40,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:20:40,641 INFO L263 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 15 conjunts are in the unsatisfiable core [2022-12-13 14:20:40,643 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:20:40,760 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-13 14:20:40,767 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-13 14:20:40,883 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2022-12-13 14:20:40,889 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-12-13 14:20:40,908 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-13 14:20:40,908 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 14:20:40,908 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 14:20:40,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1755587043] [2022-12-13 14:20:40,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1755587043] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:20:40,909 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:20:40,909 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 14:20:40,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168709946] [2022-12-13 14:20:40,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:20:40,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 14:20:40,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 14:20:40,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 14:20:40,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-13 14:20:40,910 INFO L87 Difference]: Start difference. First operand 537 states and 614 transitions. Second operand has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 14:20:41,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:20:41,573 INFO L93 Difference]: Finished difference Result 565 states and 640 transitions. [2022-12-13 14:20:41,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 14:20:41,574 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2022-12-13 14:20:41,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:20:41,575 INFO L225 Difference]: With dead ends: 565 [2022-12-13 14:20:41,575 INFO L226 Difference]: Without dead ends: 565 [2022-12-13 14:20:41,575 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-13 14:20:41,575 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 156 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-13 14:20:41,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 327 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-13 14:20:41,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2022-12-13 14:20:41,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 537. [2022-12-13 14:20:41,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 488 states have (on average 1.1967213114754098) internal successors, (584), 518 states have internal predecessors, (584), 6 states have call successors, (6), 4 states have call predecessors, (6), 13 states have return successors, (23), 14 states have call predecessors, (23), 6 states have call successors, (23) [2022-12-13 14:20:41,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 613 transitions. [2022-12-13 14:20:41,580 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 613 transitions. Word has length 64 [2022-12-13 14:20:41,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:20:41,581 INFO L495 AbstractCegarLoop]: Abstraction has 537 states and 613 transitions. [2022-12-13 14:20:41,581 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 14:20:41,581 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 613 transitions. [2022-12-13 14:20:41,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-12-13 14:20:41,581 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:20:41,581 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:20:41,590 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (57)] Ended with exit code 0 [2022-12-13 14:20:41,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 14:20:41,782 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr31REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [create_dataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 89 more)] === [2022-12-13 14:20:41,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:20:41,783 INFO L85 PathProgramCache]: Analyzing trace with hash 504851823, now seen corresponding path program 1 times [2022-12-13 14:20:41,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 14:20:41,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1048017693] [2022-12-13 14:20:41,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:20:41,785 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 [2022-12-13 14:20:41,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 14:20:41,786 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -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) [2022-12-13 14:20:41,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (58)] Waiting until timeout for monitored process [2022-12-13 14:20:42,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:20:42,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 30 conjunts are in the unsatisfiable core [2022-12-13 14:20:42,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:20:42,256 INFO L350 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 [2022-12-13 14:20:42,265 INFO L350 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 [2022-12-13 14:20:42,396 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-13 14:20:42,438 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 9 [2022-12-13 14:20:42,446 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_6097 (_ BitVec 32)) (v_arrayElimCell_173 (_ BitVec 32)) (create_data_~data~0.base (_ BitVec 32))) (and (= (select |c_old(#valid)| create_data_~data~0.base) (_ bv0 1)) (= |c_#length| (store (store |c_old(#length)| create_data_~data~0.base v_ArrVal_6097) v_arrayElimCell_173 (_ bv80 32))))) is different from true [2022-12-13 14:20:42,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:20:42,672 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-12-13 14:20:42,672 INFO L350 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 2 case distinctions, treesize of input 15 treesize of output 27 [2022-12-13 14:20:42,687 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-12-13 14:20:42,688 INFO L350 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 [2022-12-13 14:20:42,794 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-13 14:20:42,801 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-13 14:20:43,025 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 21 [2022-12-13 14:20:43,036 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-12-13 14:20:43,081 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 5 not checked. [2022-12-13 14:20:43,081 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 14:20:43,331 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 32 [2022-12-13 14:20:43,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:20:43,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:20:43,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:20:43,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:20:53,934 WARN L233 SmtUtils]: Spent 8.21s on a formula simplification that was a NOOP. DAG size: 35 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 14:20:53,935 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 14:20:53,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1048017693] [2022-12-13 14:20:53,935 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1048017693] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 14:20:53,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [369222186] [2022-12-13 14:20:53,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:20:53,935 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-13 14:20:53,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/cvc4 [2022-12-13 14:20:53,936 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-13 14:20:53,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (59)] Waiting until timeout for monitored process [2022-12-13 14:20:54,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:20:54,785 INFO L263 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 29 conjunts are in the unsatisfiable core [2022-12-13 14:20:54,787 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:20:54,841 INFO L350 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 [2022-12-13 14:20:54,849 INFO L350 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 [2022-12-13 14:20:55,042 WARN L859 $PredicateComparison]: unable to prove that (exists ((create_data_~data~0.base (_ BitVec 32)) (|create_data_#t~malloc7.base| (_ BitVec 32))) (and (= (select |c_old(#valid)| create_data_~data~0.base) (_ bv0 1)) (exists ((v_ArrVal_6227 (_ BitVec 32))) (= |c_#length| (store (store |c_old(#length)| create_data_~data~0.base v_ArrVal_6227) |create_data_#t~malloc7.base| (_ bv80 32)))))) is different from true [2022-12-13 14:20:55,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:20:55,318 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-12-13 14:20:55,318 INFO L350 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 2 case distinctions, treesize of input 15 treesize of output 27 [2022-12-13 14:20:55,336 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-12-13 14:20:55,336 INFO L350 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 [2022-12-13 14:20:55,498 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-13 14:20:55,510 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-13 14:20:55,845 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 21 [2022-12-13 14:20:55,855 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-12-13 14:20:55,882 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-13 14:20:55,882 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 14:20:55,882 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [369222186] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:20:55,882 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 14:20:55,883 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 15 [2022-12-13 14:20:55,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606162383] [2022-12-13 14:20:55,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:20:55,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 14:20:55,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 14:20:55,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 14:20:55,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=256, Unknown=2, NotChecked=66, Total=380 [2022-12-13 14:20:55,883 INFO L87 Difference]: Start difference. First operand 537 states and 613 transitions. Second operand has 10 states, 9 states have (on average 5.888888888888889) internal successors, (53), 10 states have internal predecessors, (53), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 14:20:57,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:20:57,569 INFO L93 Difference]: Finished difference Result 718 states and 810 transitions. [2022-12-13 14:20:57,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 14:20:57,570 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.888888888888889) internal successors, (53), 10 states have internal predecessors, (53), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2022-12-13 14:20:57,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:20:57,572 INFO L225 Difference]: With dead ends: 718 [2022-12-13 14:20:57,572 INFO L226 Difference]: Without dead ends: 718 [2022-12-13 14:20:57,572 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 128 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 11.4s TimeCoverageRelationStatistics Valid=88, Invalid=338, Unknown=2, NotChecked=78, Total=506 [2022-12-13 14:20:57,572 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 242 mSDsluCounter, 451 mSDsCounter, 0 mSdLazyCounter, 538 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 612 SdHoareTripleChecker+Invalid, 846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 538 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 304 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-12-13 14:20:57,572 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [242 Valid, 612 Invalid, 846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 538 Invalid, 0 Unknown, 304 Unchecked, 1.3s Time] [2022-12-13 14:20:57,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 718 states. [2022-12-13 14:20:57,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 718 to 574. [2022-12-13 14:20:57,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 574 states, 523 states have (on average 1.191204588910134) internal successors, (623), 553 states have internal predecessors, (623), 6 states have call successors, (6), 4 states have call predecessors, (6), 15 states have return successors, (26), 16 states have call predecessors, (26), 6 states have call successors, (26) [2022-12-13 14:20:57,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 655 transitions. [2022-12-13 14:20:57,578 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 655 transitions. Word has length 65 [2022-12-13 14:20:57,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:20:57,578 INFO L495 AbstractCegarLoop]: Abstraction has 574 states and 655 transitions. [2022-12-13 14:20:57,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.888888888888889) internal successors, (53), 10 states have internal predecessors, (53), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 14:20:57,579 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 655 transitions. [2022-12-13 14:20:57,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-12-13 14:20:57,579 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:20:57,579 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:20:57,587 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (59)] Ended with exit code 0 [2022-12-13 14:20:57,795 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (58)] Ended with exit code 0 [2022-12-13 14:20:57,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt,58 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 14:20:57,981 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [create_dataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 89 more)] === [2022-12-13 14:20:57,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:20:57,982 INFO L85 PathProgramCache]: Analyzing trace with hash -665539789, now seen corresponding path program 1 times [2022-12-13 14:20:57,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 14:20:57,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [594862284] [2022-12-13 14:20:57,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:20:57,984 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 [2022-12-13 14:20:57,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 14:20:57,987 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -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) [2022-12-13 14:20:57,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (60)] Waiting until timeout for monitored process [2022-12-13 14:20:58,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:20:58,432 INFO L263 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 21 conjunts are in the unsatisfiable core [2022-12-13 14:20:58,435 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:20:58,480 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-13 14:20:58,480 INFO L350 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 1 case distinctions, treesize of input 9 treesize of output 19 [2022-12-13 14:20:58,515 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-13 14:20:58,571 INFO L321 Elim1Store]: treesize reduction 29, result has 27.5 percent of original size [2022-12-13 14:20:58,572 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 24 [2022-12-13 14:20:58,654 INFO L321 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2022-12-13 14:20:58,654 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 24 [2022-12-13 14:20:58,739 INFO L321 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-12-13 14:20:58,740 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 34 treesize of output 14 [2022-12-13 14:20:58,770 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-13 14:20:58,770 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 14:20:58,923 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 32 [2022-12-13 14:20:59,142 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-13 14:20:59,142 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 14:20:59,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [594862284] [2022-12-13 14:20:59,142 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [594862284] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 14:20:59,142 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 14:20:59,143 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 13 [2022-12-13 14:20:59,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751511838] [2022-12-13 14:20:59,143 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 14:20:59,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-13 14:20:59,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 14:20:59,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-13 14:20:59,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-12-13 14:20:59,143 INFO L87 Difference]: Start difference. First operand 574 states and 655 transitions. Second operand has 14 states, 13 states have (on average 4.846153846153846) internal successors, (63), 13 states have internal predecessors, (63), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-13 14:21:00,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:21:00,482 INFO L93 Difference]: Finished difference Result 585 states and 669 transitions. [2022-12-13 14:21:00,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 14:21:00,483 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 4.846153846153846) internal successors, (63), 13 states have internal predecessors, (63), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 65 [2022-12-13 14:21:00,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:21:00,484 INFO L225 Difference]: With dead ends: 585 [2022-12-13 14:21:00,485 INFO L226 Difference]: Without dead ends: 585 [2022-12-13 14:21:00,485 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 115 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=96, Invalid=246, Unknown=0, NotChecked=0, Total=342 [2022-12-13 14:21:00,485 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 375 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 425 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-13 14:21:00,485 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [375 Valid, 473 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 425 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-13 14:21:00,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 585 states. [2022-12-13 14:21:00,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 585 to 573. [2022-12-13 14:21:00,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 573 states, 523 states have (on average 1.1854684512428297) internal successors, (620), 552 states have internal predecessors, (620), 6 states have call successors, (6), 4 states have call predecessors, (6), 15 states have return successors, (26), 16 states have call predecessors, (26), 6 states have call successors, (26) [2022-12-13 14:21:00,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 652 transitions. [2022-12-13 14:21:00,491 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 652 transitions. Word has length 65 [2022-12-13 14:21:00,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:21:00,491 INFO L495 AbstractCegarLoop]: Abstraction has 573 states and 652 transitions. [2022-12-13 14:21:00,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 4.846153846153846) internal successors, (63), 13 states have internal predecessors, (63), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-13 14:21:00,491 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 652 transitions. [2022-12-13 14:21:00,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-12-13 14:21:00,491 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:21:00,491 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:21:00,502 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (60)] Ended with exit code 0 [2022-12-13 14:21:00,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 60 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 14:21:00,692 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [create_dataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 89 more)] === [2022-12-13 14:21:00,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:21:00,692 INFO L85 PathProgramCache]: Analyzing trace with hash -665539788, now seen corresponding path program 1 times [2022-12-13 14:21:00,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 14:21:00,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1687861785] [2022-12-13 14:21:00,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:21:00,693 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 [2022-12-13 14:21:00,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 14:21:00,694 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -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) [2022-12-13 14:21:00,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (61)] Waiting until timeout for monitored process [2022-12-13 14:21:01,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:21:01,144 INFO L263 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 31 conjunts are in the unsatisfiable core [2022-12-13 14:21:01,147 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:21:01,228 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-13 14:21:01,229 INFO L350 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 1 case distinctions, treesize of input 9 treesize of output 15 [2022-12-13 14:21:01,293 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-13 14:21:01,299 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-13 14:21:01,424 INFO L321 Elim1Store]: treesize reduction 6, result has 57.1 percent of original size [2022-12-13 14:21:01,424 INFO L350 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 17 treesize of output 17 [2022-12-13 14:21:01,431 INFO L350 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 16 treesize of output 18 [2022-12-13 14:21:01,529 INFO L321 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2022-12-13 14:21:01,529 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 1 case distinctions, treesize of input 25 treesize of output 20 [2022-12-13 14:21:01,558 INFO L321 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2022-12-13 14:21:01,559 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 26 [2022-12-13 14:21:01,705 INFO L321 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-12-13 14:21:01,705 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 10 [2022-12-13 14:21:01,711 INFO L321 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-12-13 14:21:01,711 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 40 treesize of output 16 [2022-12-13 14:21:01,744 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-13 14:21:01,744 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 14:21:04,379 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 28 [2022-12-13 14:21:04,409 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 62 [2022-12-13 14:21:04,413 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 94 [2022-12-13 14:21:25,095 WARN L233 SmtUtils]: Spent 19.38s on a formula simplification. DAG size of input: 69 DAG size of output: 45 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 14:21:25,310 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 14:21:25,310 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 103 treesize of output 155 [2022-12-13 14:21:29,008 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 122 treesize of output 118 [2022-12-13 14:21:29,057 INFO L321 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-12-13 14:21:29,057 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 345 treesize of output 340 [2022-12-13 14:21:29,508 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 122 treesize of output 118 [2022-12-13 14:21:29,672 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-13 14:21:29,672 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 14:21:29,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1687861785] [2022-12-13 14:21:29,672 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1687861785] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 14:21:29,672 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 14:21:29,672 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 16 [2022-12-13 14:21:29,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332981227] [2022-12-13 14:21:29,672 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 14:21:29,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-12-13 14:21:29,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 14:21:29,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-12-13 14:21:29,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=228, Unknown=1, NotChecked=0, Total=272 [2022-12-13 14:21:29,673 INFO L87 Difference]: Start difference. First operand 573 states and 652 transitions. Second operand has 17 states, 16 states have (on average 5.0625) internal successors, (81), 16 states have internal predecessors, (81), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 14:21:33,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:21:33,296 INFO L93 Difference]: Finished difference Result 601 states and 683 transitions. [2022-12-13 14:21:33,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 14:21:33,298 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 5.0625) internal successors, (81), 16 states have internal predecessors, (81), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 65 [2022-12-13 14:21:33,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:21:33,299 INFO L225 Difference]: With dead ends: 601 [2022-12-13 14:21:33,299 INFO L226 Difference]: Without dead ends: 601 [2022-12-13 14:21:33,299 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 25.4s TimeCoverageRelationStatistics Valid=131, Invalid=420, Unknown=1, NotChecked=0, Total=552 [2022-12-13 14:21:33,299 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 356 mSDsluCounter, 636 mSDsCounter, 0 mSdLazyCounter, 660 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 356 SdHoareTripleChecker+Valid, 739 SdHoareTripleChecker+Invalid, 672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 660 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-12-13 14:21:33,299 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [356 Valid, 739 Invalid, 672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 660 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-12-13 14:21:33,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2022-12-13 14:21:33,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 572. [2022-12-13 14:21:33,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 572 states, 523 states have (on average 1.1797323135755258) internal successors, (617), 551 states have internal predecessors, (617), 6 states have call successors, (6), 4 states have call predecessors, (6), 15 states have return successors, (26), 16 states have call predecessors, (26), 6 states have call successors, (26) [2022-12-13 14:21:33,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 649 transitions. [2022-12-13 14:21:33,305 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 649 transitions. Word has length 65 [2022-12-13 14:21:33,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:21:33,305 INFO L495 AbstractCegarLoop]: Abstraction has 572 states and 649 transitions. [2022-12-13 14:21:33,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 5.0625) internal successors, (81), 16 states have internal predecessors, (81), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 14:21:33,306 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 649 transitions. [2022-12-13 14:21:33,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-12-13 14:21:33,306 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:21:33,306 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:21:33,316 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (61)] Ended with exit code 0 [2022-12-13 14:21:33,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 61 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 14:21:33,507 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr24REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [create_dataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 89 more)] === [2022-12-13 14:21:33,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:21:33,508 INFO L85 PathProgramCache]: Analyzing trace with hash -1286364406, now seen corresponding path program 1 times [2022-12-13 14:21:33,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 14:21:33,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [122223485] [2022-12-13 14:21:33,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:21:33,509 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 [2022-12-13 14:21:33,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 14:21:33,511 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -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) [2022-12-13 14:21:33,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (62)] Waiting until timeout for monitored process [2022-12-13 14:21:34,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:21:34,101 INFO L263 TraceCheckSpWp]: Trace formula consists of 473 conjuncts, 27 conjunts are in the unsatisfiable core [2022-12-13 14:21:34,103 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:21:34,171 INFO L350 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 [2022-12-13 14:21:34,258 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-13 14:21:34,329 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-13 14:21:34,356 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-13 14:21:34,356 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 26 [2022-12-13 14:21:34,455 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-12-13 14:21:34,508 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 14:21:34,509 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 29 [2022-12-13 14:21:34,540 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-13 14:21:34,540 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 14:21:34,540 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 14:21:34,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [122223485] [2022-12-13 14:21:34,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [122223485] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:21:34,541 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:21:34,541 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-13 14:21:34,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841256844] [2022-12-13 14:21:34,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:21:34,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 14:21:34,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 14:21:34,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 14:21:34,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-12-13 14:21:34,542 INFO L87 Difference]: Start difference. First operand 572 states and 649 transitions. Second operand has 12 states, 11 states have (on average 4.818181818181818) internal successors, (53), 11 states have internal predecessors, (53), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 14:21:36,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:21:36,374 INFO L93 Difference]: Finished difference Result 659 states and 775 transitions. [2022-12-13 14:21:36,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-13 14:21:36,375 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.818181818181818) internal successors, (53), 11 states have internal predecessors, (53), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2022-12-13 14:21:36,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:21:36,377 INFO L225 Difference]: With dead ends: 659 [2022-12-13 14:21:36,377 INFO L226 Difference]: Without dead ends: 659 [2022-12-13 14:21:36,378 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=86, Invalid=334, Unknown=0, NotChecked=0, Total=420 [2022-12-13 14:21:36,378 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 283 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 657 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 657 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-12-13 14:21:36,378 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [284 Valid, 581 Invalid, 668 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 657 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-12-13 14:21:36,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 659 states. [2022-12-13 14:21:36,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 659 to 591. [2022-12-13 14:21:36,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 591 states, 542 states have (on average 1.1863468634686347) internal successors, (643), 570 states have internal predecessors, (643), 6 states have call successors, (6), 4 states have call predecessors, (6), 15 states have return successors, (26), 16 states have call predecessors, (26), 6 states have call successors, (26) [2022-12-13 14:21:36,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 675 transitions. [2022-12-13 14:21:36,386 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 675 transitions. Word has length 65 [2022-12-13 14:21:36,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:21:36,386 INFO L495 AbstractCegarLoop]: Abstraction has 591 states and 675 transitions. [2022-12-13 14:21:36,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.818181818181818) internal successors, (53), 11 states have internal predecessors, (53), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 14:21:36,387 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 675 transitions. [2022-12-13 14:21:36,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-12-13 14:21:36,387 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:21:36,387 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:21:36,402 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (62)] Ended with exit code 0 [2022-12-13 14:21:36,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 62 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 14:21:36,589 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr25REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [create_dataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 89 more)] === [2022-12-13 14:21:36,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:21:36,590 INFO L85 PathProgramCache]: Analyzing trace with hash -1286364405, now seen corresponding path program 1 times [2022-12-13 14:21:36,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 14:21:36,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1534128697] [2022-12-13 14:21:36,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:21:36,593 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 14:21:36,593 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 14:21:36,594 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -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) [2022-12-13 14:21:36,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (63)] Waiting until timeout for monitored process [2022-12-13 14:21:37,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:21:37,332 INFO L263 TraceCheckSpWp]: Trace formula consists of 473 conjuncts, 36 conjunts are in the unsatisfiable core [2022-12-13 14:21:37,335 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:21:37,338 INFO L350 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 [2022-12-13 14:21:37,356 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-12-13 14:21:37,356 INFO L350 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 [2022-12-13 14:21:37,423 INFO L350 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 [2022-12-13 14:21:37,579 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-13 14:21:37,589 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-13 14:21:37,660 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 21 treesize of output 20 [2022-12-13 14:21:37,669 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 23 treesize of output 22 [2022-12-13 14:21:37,824 INFO L321 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-12-13 14:21:37,824 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 71 treesize of output 38 [2022-12-13 14:21:37,834 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 10 [2022-12-13 14:21:37,869 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-13 14:21:37,869 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 14:21:37,869 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 14:21:37,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1534128697] [2022-12-13 14:21:37,870 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1534128697] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:21:37,870 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:21:37,870 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-13 14:21:37,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769364460] [2022-12-13 14:21:37,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:21:37,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 14:21:37,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 14:21:37,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 14:21:37,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2022-12-13 14:21:37,871 INFO L87 Difference]: Start difference. First operand 591 states and 675 transitions. Second operand has 12 states, 11 states have (on average 4.818181818181818) internal successors, (53), 11 states have internal predecessors, (53), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 14:21:40,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:21:40,128 INFO L93 Difference]: Finished difference Result 684 states and 768 transitions. [2022-12-13 14:21:40,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-13 14:21:40,129 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.818181818181818) internal successors, (53), 11 states have internal predecessors, (53), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2022-12-13 14:21:40,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:21:40,130 INFO L225 Difference]: With dead ends: 684 [2022-12-13 14:21:40,130 INFO L226 Difference]: Without dead ends: 684 [2022-12-13 14:21:40,130 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=91, Invalid=371, Unknown=0, NotChecked=0, Total=462 [2022-12-13 14:21:40,130 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 446 mSDsluCounter, 505 mSDsCounter, 0 mSdLazyCounter, 649 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 446 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 665 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 649 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-12-13 14:21:40,130 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [446 Valid, 583 Invalid, 665 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 649 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-12-13 14:21:40,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 684 states. [2022-12-13 14:21:40,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 684 to 585. [2022-12-13 14:21:40,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 585 states, 536 states have (on average 1.1847014925373134) internal successors, (635), 564 states have internal predecessors, (635), 6 states have call successors, (6), 4 states have call predecessors, (6), 15 states have return successors, (26), 16 states have call predecessors, (26), 6 states have call successors, (26) [2022-12-13 14:21:40,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 667 transitions. [2022-12-13 14:21:40,136 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 667 transitions. Word has length 65 [2022-12-13 14:21:40,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:21:40,136 INFO L495 AbstractCegarLoop]: Abstraction has 585 states and 667 transitions. [2022-12-13 14:21:40,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.818181818181818) internal successors, (53), 11 states have internal predecessors, (53), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 14:21:40,136 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 667 transitions. [2022-12-13 14:21:40,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-12-13 14:21:40,137 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:21:40,137 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:21:40,149 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (63)] Forceful destruction successful, exit code 0 [2022-12-13 14:21:40,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 63 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 14:21:40,338 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr36REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [create_dataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 89 more)] === [2022-12-13 14:21:40,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:21:40,339 INFO L85 PathProgramCache]: Analyzing trace with hash 1134284034, now seen corresponding path program 1 times [2022-12-13 14:21:40,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 14:21:40,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [574080801] [2022-12-13 14:21:40,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:21:40,341 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 [2022-12-13 14:21:40,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 14:21:40,343 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -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) [2022-12-13 14:21:40,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (64)] Waiting until timeout for monitored process [2022-12-13 14:21:40,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:21:40,763 INFO L263 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-13 14:21:40,764 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:21:40,845 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 19 [2022-12-13 14:21:40,881 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 14:21:40,881 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 26 [2022-12-13 14:21:40,923 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-13 14:21:40,923 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 14:21:40,923 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 14:21:40,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [574080801] [2022-12-13 14:21:40,924 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [574080801] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:21:40,924 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:21:40,924 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 14:21:40,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484681839] [2022-12-13 14:21:40,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:21:40,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 14:21:40,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 14:21:40,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 14:21:40,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-13 14:21:40,925 INFO L87 Difference]: Start difference. First operand 585 states and 667 transitions. Second operand has 8 states, 7 states have (on average 7.714285714285714) internal successors, (54), 8 states have internal predecessors, (54), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 14:21:42,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:21:42,241 INFO L93 Difference]: Finished difference Result 617 states and 702 transitions. [2022-12-13 14:21:42,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 14:21:42,242 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.714285714285714) internal successors, (54), 8 states have internal predecessors, (54), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2022-12-13 14:21:42,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:21:42,244 INFO L225 Difference]: With dead ends: 617 [2022-12-13 14:21:42,244 INFO L226 Difference]: Without dead ends: 617 [2022-12-13 14:21:42,244 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2022-12-13 14:21:42,245 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 51 mSDsluCounter, 442 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-12-13 14:21:42,245 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 563 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-12-13 14:21:42,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 617 states. [2022-12-13 14:21:42,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 617 to 600. [2022-12-13 14:21:42,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 600 states, 551 states have (on average 1.1887477313974593) internal successors, (655), 579 states have internal predecessors, (655), 6 states have call successors, (6), 4 states have call predecessors, (6), 15 states have return successors, (26), 16 states have call predecessors, (26), 6 states have call successors, (26) [2022-12-13 14:21:42,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 687 transitions. [2022-12-13 14:21:42,255 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 687 transitions. Word has length 66 [2022-12-13 14:21:42,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:21:42,255 INFO L495 AbstractCegarLoop]: Abstraction has 600 states and 687 transitions. [2022-12-13 14:21:42,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.714285714285714) internal successors, (54), 8 states have internal predecessors, (54), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 14:21:42,255 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 687 transitions. [2022-12-13 14:21:42,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-12-13 14:21:42,256 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:21:42,256 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:21:42,266 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (64)] Forceful destruction successful, exit code 0 [2022-12-13 14:21:42,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 64 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 14:21:42,457 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr37REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [create_dataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 89 more)] === [2022-12-13 14:21:42,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:21:42,457 INFO L85 PathProgramCache]: Analyzing trace with hash 1134284035, now seen corresponding path program 1 times [2022-12-13 14:21:42,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 14:21:42,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2034937670] [2022-12-13 14:21:42,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:21:42,458 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 [2022-12-13 14:21:42,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 14:21:42,459 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -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) [2022-12-13 14:21:42,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (65)] Waiting until timeout for monitored process [2022-12-13 14:21:42,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:21:42,903 INFO L263 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 35 conjunts are in the unsatisfiable core [2022-12-13 14:21:42,905 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:21:43,066 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-13 14:21:43,113 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-13 14:21:43,125 INFO L321 Elim1Store]: treesize reduction 29, result has 27.5 percent of original size [2022-12-13 14:21:43,125 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-12-13 14:21:43,552 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 14:21:43,552 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 48 [2022-12-13 14:21:43,573 INFO L321 Elim1Store]: treesize reduction 26, result has 10.3 percent of original size [2022-12-13 14:21:43,573 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 23 [2022-12-13 14:21:43,660 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-13 14:21:43,660 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 14:21:43,660 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 14:21:43,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2034937670] [2022-12-13 14:21:43,660 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2034937670] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:21:43,660 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:21:43,660 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-12-13 14:21:43,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518268259] [2022-12-13 14:21:43,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:21:43,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-13 14:21:43,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 14:21:43,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-13 14:21:43,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2022-12-13 14:21:43,662 INFO L87 Difference]: Start difference. First operand 600 states and 687 transitions. Second operand has 16 states, 15 states have (on average 3.6) internal successors, (54), 15 states have internal predecessors, (54), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 14:21:46,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:21:46,392 INFO L93 Difference]: Finished difference Result 696 states and 817 transitions. [2022-12-13 14:21:46,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-12-13 14:21:46,393 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 3.6) internal successors, (54), 15 states have internal predecessors, (54), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2022-12-13 14:21:46,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:21:46,394 INFO L225 Difference]: With dead ends: 696 [2022-12-13 14:21:46,394 INFO L226 Difference]: Without dead ends: 696 [2022-12-13 14:21:46,394 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=181, Invalid=689, Unknown=0, NotChecked=0, Total=870 [2022-12-13 14:21:46,395 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 393 mSDsluCounter, 689 mSDsCounter, 0 mSdLazyCounter, 677 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 395 SdHoareTripleChecker+Valid, 783 SdHoareTripleChecker+Invalid, 688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 677 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-12-13 14:21:46,395 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [395 Valid, 783 Invalid, 688 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 677 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-12-13 14:21:46,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2022-12-13 14:21:46,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 625. [2022-12-13 14:21:46,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 625 states, 576 states have (on average 1.1909722222222223) internal successors, (686), 604 states have internal predecessors, (686), 6 states have call successors, (6), 4 states have call predecessors, (6), 15 states have return successors, (26), 16 states have call predecessors, (26), 6 states have call successors, (26) [2022-12-13 14:21:46,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 625 states to 625 states and 718 transitions. [2022-12-13 14:21:46,401 INFO L78 Accepts]: Start accepts. Automaton has 625 states and 718 transitions. Word has length 66 [2022-12-13 14:21:46,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:21:46,401 INFO L495 AbstractCegarLoop]: Abstraction has 625 states and 718 transitions. [2022-12-13 14:21:46,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 3.6) internal successors, (54), 15 states have internal predecessors, (54), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 14:21:46,401 INFO L276 IsEmpty]: Start isEmpty. Operand 625 states and 718 transitions. [2022-12-13 14:21:46,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-12-13 14:21:46,402 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:21:46,402 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:21:46,412 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (65)] Ended with exit code 0 [2022-12-13 14:21:46,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 65 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 14:21:46,603 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [create_dataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 89 more)] === [2022-12-13 14:21:46,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:21:46,604 INFO L85 PathProgramCache]: Analyzing trace with hash -1667627081, now seen corresponding path program 2 times [2022-12-13 14:21:46,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 14:21:46,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1616752724] [2022-12-13 14:21:46,606 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 14:21:46,606 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 [2022-12-13 14:21:46,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 14:21:46,607 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -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) [2022-12-13 14:21:46,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (66)] Waiting until timeout for monitored process [2022-12-13 14:21:47,428 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 14:21:47,428 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 14:21:47,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 563 conjuncts, 21 conjunts are in the unsatisfiable core [2022-12-13 14:21:47,459 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:21:47,463 INFO L350 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 [2022-12-13 14:21:47,471 INFO L350 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 [2022-12-13 14:21:47,626 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_7410 (_ BitVec 32)) (create_data_~data~0.base (_ BitVec 32)) (v_ArrVal_7409 (_ BitVec 32)) (|create_data_#t~malloc7.base| (_ BitVec 32))) (and (= (select |c_old(#valid)| create_data_~data~0.base) (_ bv0 1)) (= (_ bv0 1) (select (store |c_old(#valid)| create_data_~data~0.base (_ bv1 1)) |create_data_#t~malloc7.base|)) (= |c_#length| (store (store |c_old(#length)| create_data_~data~0.base v_ArrVal_7410) |create_data_#t~malloc7.base| v_ArrVal_7409)))) is different from true [2022-12-13 14:21:47,955 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_7410 (_ BitVec 32)) (create_data_~data~0.base (_ BitVec 32)) (v_ArrVal_7409 (_ BitVec 32)) (|create_data_#t~malloc7.base| (_ BitVec 32))) (and (= (select |c_old(#valid)| create_data_~data~0.base) (_ bv0 1)) (= (_ bv0 1) (select (store |c_old(#valid)| create_data_~data~0.base (_ bv1 1)) |create_data_#t~malloc7.base|)) (= |c_#length| (store (store (store |c_old(#length)| create_data_~data~0.base v_ArrVal_7410) |create_data_#t~malloc7.base| v_ArrVal_7409) c_create_data_~nextData~0.base (_ bv16 32))))) is different from true [2022-12-13 14:21:48,094 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_7410 (_ BitVec 32)) (v_ArrVal_7409 (_ BitVec 32)) (create_data_~data~0.base (_ BitVec 32)) (v_create_data_~data~0.base_130 (_ BitVec 32)) (|create_data_#t~malloc7.base| (_ BitVec 32))) (and (= |c_#length| (store (store (store |c_old(#length)| v_create_data_~data~0.base_130 v_ArrVal_7410) |create_data_#t~malloc7.base| v_ArrVal_7409) create_data_~data~0.base (_ bv16 32))) (= (_ bv0 1) (select (store |c_old(#valid)| v_create_data_~data~0.base_130 (_ bv1 1)) |create_data_#t~malloc7.base|)) (= (_ bv0 1) (select |c_old(#valid)| v_create_data_~data~0.base_130)))) is different from true [2022-12-13 14:21:48,114 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_7410 (_ BitVec 32)) (v_ArrVal_7409 (_ BitVec 32)) (create_data_~data~0.base (_ BitVec 32)) (create_data_~nextData~0.base (_ BitVec 32)) (v_create_data_~data~0.base_130 (_ BitVec 32)) (|create_data_#t~malloc7.base| (_ BitVec 32))) (and (= |c_#length| (store (store (store (store |c_old(#length)| v_create_data_~data~0.base_130 v_ArrVal_7410) |create_data_#t~malloc7.base| v_ArrVal_7409) create_data_~data~0.base (_ bv16 32)) create_data_~nextData~0.base (_ bv16 32))) (= (_ bv0 1) (select (store |c_old(#valid)| v_create_data_~data~0.base_130 (_ bv1 1)) |create_data_#t~malloc7.base|)) (= (_ bv0 1) (select |c_old(#valid)| v_create_data_~data~0.base_130)))) is different from true [2022-12-13 14:21:48,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:21:48,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:21:48,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:21:48,417 INFO L321 Elim1Store]: treesize reduction 83, result has 33.6 percent of original size [2022-12-13 14:21:48,418 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 21 treesize of output 50 [2022-12-13 14:21:48,466 INFO L321 Elim1Store]: treesize reduction 22, result has 29.0 percent of original size [2022-12-13 14:21:48,467 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 22 treesize of output 24 [2022-12-13 14:21:48,580 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 13 not checked. [2022-12-13 14:21:48,580 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 14:21:51,054 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 14:21:51,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1616752724] [2022-12-13 14:21:51,054 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1616752724] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 14:21:51,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1287722761] [2022-12-13 14:21:51,055 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 14:21:51,055 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-13 14:21:51,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/cvc4 [2022-12-13 14:21:51,056 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-13 14:21:51,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (67)] Waiting until timeout for monitored process [2022-12-13 14:21:51,789 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 14:21:51,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1273531310] [2022-12-13 14:21:51,790 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 14:21:51,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:21:51,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:21:51,791 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 14:21:51,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Waiting until timeout for monitored process [2022-12-13 14:21:51,799 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (67)] Ended with exit code 1 [2022-12-13 14:21:53,140 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 14:21:53,140 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 14:21:53,152 INFO L263 TraceCheckSpWp]: Trace formula consists of 563 conjuncts, 22 conjunts are in the unsatisfiable core [2022-12-13 14:21:53,155 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:21:53,159 INFO L350 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 [2022-12-13 14:21:53,173 INFO L350 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 [2022-12-13 14:21:53,599 WARN L859 $PredicateComparison]: unable to prove that (exists ((create_data_~data~0.base (_ BitVec 32)) (v_ArrVal_7955 (_ BitVec 32)) (|create_data_#t~malloc7.base| (_ BitVec 32)) (v_ArrVal_7958 (_ BitVec 32))) (and (= (select |c_old(#valid)| create_data_~data~0.base) (_ bv0 1)) (= (_ bv0 1) (select (store |c_old(#valid)| create_data_~data~0.base (_ bv1 1)) |create_data_#t~malloc7.base|)) (= (store (store (store |c_old(#length)| create_data_~data~0.base v_ArrVal_7955) |create_data_#t~malloc7.base| v_ArrVal_7958) c_create_data_~nextData~0.base (_ bv16 32)) |c_#length|))) is different from true [2022-12-13 14:21:54,068 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-12-13 14:21:54,069 INFO L350 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 [2022-12-13 14:21:54,090 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_create_data_~data~0.base_138 (_ BitVec 32)) (create_data_~data~0.base (_ BitVec 32)) (v_ArrVal_7955 (_ BitVec 32)) (create_data_~nextData~0.base (_ BitVec 32)) (|create_data_#t~malloc7.base| (_ BitVec 32)) (v_ArrVal_7958 (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| v_create_data_~data~0.base_138)) (= (_ bv0 1) (select (store |c_old(#valid)| v_create_data_~data~0.base_138 (_ bv1 1)) |create_data_#t~malloc7.base|)) (= (store (store (store (store |c_old(#length)| v_create_data_~data~0.base_138 v_ArrVal_7955) |create_data_#t~malloc7.base| v_ArrVal_7958) create_data_~data~0.base (_ bv16 32)) create_data_~nextData~0.base (_ bv16 32)) |c_#length|) (not (= create_data_~nextData~0.base create_data_~data~0.base)))) is different from true [2022-12-13 14:21:54,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:21:54,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:21:54,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:21:54,469 INFO L321 Elim1Store]: treesize reduction 69, result has 34.9 percent of original size [2022-12-13 14:21:54,469 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 21 treesize of output 50 [2022-12-13 14:21:54,518 INFO L321 Elim1Store]: treesize reduction 22, result has 29.0 percent of original size [2022-12-13 14:21:54,518 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 22 treesize of output 24 [2022-12-13 14:21:54,682 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 12 not checked. [2022-12-13 14:21:54,682 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 14:21:54,834 INFO L321 Elim1Store]: treesize reduction 7, result has 30.0 percent of original size [2022-12-13 14:21:54,834 INFO L350 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 15 treesize of output 14 [2022-12-13 14:22:03,416 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1273531310] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 14:22:03,416 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 14:22:03,416 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2022-12-13 14:22:03,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996770237] [2022-12-13 14:22:03,417 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 14:22:03,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-13 14:22:03,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 14:22:03,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-13 14:22:03,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=129, Unknown=8, NotChecked=162, Total=342 [2022-12-13 14:22:03,417 INFO L87 Difference]: Start difference. First operand 625 states and 718 transitions. Second operand has 16 states, 15 states have (on average 6.533333333333333) internal successors, (98), 14 states have internal predecessors, (98), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-13 14:22:10,779 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 14:22:11,966 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_7410 (_ BitVec 32)) (v_ArrVal_7409 (_ BitVec 32)) (create_data_~data~0.base (_ BitVec 32)) (create_data_~nextData~0.base (_ BitVec 32)) (v_create_data_~data~0.base_130 (_ BitVec 32)) (|create_data_#t~malloc7.base| (_ BitVec 32))) (and (= |c_#length| (store (store (store (store |c_old(#length)| v_create_data_~data~0.base_130 v_ArrVal_7410) |create_data_#t~malloc7.base| v_ArrVal_7409) create_data_~data~0.base (_ bv16 32)) create_data_~nextData~0.base (_ bv16 32))) (= (_ bv0 1) (select (store |c_old(#valid)| v_create_data_~data~0.base_130 (_ bv1 1)) |create_data_#t~malloc7.base|)) (= (_ bv0 1) (select |c_old(#valid)| v_create_data_~data~0.base_130)))) (exists ((v_create_data_~data~0.base_138 (_ BitVec 32)) (create_data_~data~0.base (_ BitVec 32)) (v_ArrVal_7955 (_ BitVec 32)) (create_data_~nextData~0.base (_ BitVec 32)) (|create_data_#t~malloc7.base| (_ BitVec 32)) (v_ArrVal_7958 (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| v_create_data_~data~0.base_138)) (= (_ bv0 1) (select (store |c_old(#valid)| v_create_data_~data~0.base_138 (_ bv1 1)) |create_data_#t~malloc7.base|)) (= (store (store (store (store |c_old(#length)| v_create_data_~data~0.base_138 v_ArrVal_7955) |create_data_#t~malloc7.base| v_ArrVal_7958) create_data_~data~0.base (_ bv16 32)) create_data_~nextData~0.base (_ bv16 32)) |c_#length|) (not (= create_data_~nextData~0.base create_data_~data~0.base))))) is different from true [2022-12-13 14:22:14,820 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 14:22:17,002 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 14:22:18,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:22:18,898 INFO L93 Difference]: Finished difference Result 984 states and 1143 transitions. [2022-12-13 14:22:18,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 14:22:18,899 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 6.533333333333333) internal successors, (98), 14 states have internal predecessors, (98), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 66 [2022-12-13 14:22:18,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:22:18,901 INFO L225 Difference]: With dead ends: 984 [2022-12-13 14:22:18,901 INFO L226 Difference]: Without dead ends: 984 [2022-12-13 14:22:18,901 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 119 SyntacticMatches, 3 SemanticMatches, 22 ConstructedPredicates, 7 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 13.0s TimeCoverageRelationStatistics Valid=66, Invalid=225, Unknown=9, NotChecked=252, Total=552 [2022-12-13 14:22:18,901 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 242 mSDsluCounter, 768 mSDsCounter, 0 mSdLazyCounter, 941 mSolverCounterSat, 17 mSolverCounterUnsat, 46 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 929 SdHoareTripleChecker+Invalid, 2854 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 941 IncrementalHoareTripleChecker+Invalid, 46 IncrementalHoareTripleChecker+Unknown, 1850 IncrementalHoareTripleChecker+Unchecked, 13.8s IncrementalHoareTripleChecker+Time [2022-12-13 14:22:18,901 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [242 Valid, 929 Invalid, 2854 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 941 Invalid, 46 Unknown, 1850 Unchecked, 13.8s Time] [2022-12-13 14:22:18,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 984 states. [2022-12-13 14:22:18,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 984 to 600. [2022-12-13 14:22:18,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 600 states, 553 states have (on average 1.1880650994575046) internal successors, (657), 582 states have internal predecessors, (657), 6 states have call successors, (6), 4 states have call predecessors, (6), 13 states have return successors, (25), 13 states have call predecessors, (25), 6 states have call successors, (25) [2022-12-13 14:22:18,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 688 transitions. [2022-12-13 14:22:18,912 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 688 transitions. Word has length 66 [2022-12-13 14:22:18,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:22:18,912 INFO L495 AbstractCegarLoop]: Abstraction has 600 states and 688 transitions. [2022-12-13 14:22:18,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 6.533333333333333) internal successors, (98), 14 states have internal predecessors, (98), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-13 14:22:18,912 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 688 transitions. [2022-12-13 14:22:18,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-12-13 14:22:18,913 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:22:18,913 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:22:18,926 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (66)] Ended with exit code 0 [2022-12-13 14:22:19,142 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Ended with exit code 0 [2022-12-13 14:22:19,314 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 66 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,68 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:22:19,315 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE === [create_dataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 89 more)] === [2022-12-13 14:22:19,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:22:19,316 INFO L85 PathProgramCache]: Analyzing trace with hash 803066894, now seen corresponding path program 1 times [2022-12-13 14:22:19,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 14:22:19,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [263613330] [2022-12-13 14:22:19,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:22:19,318 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 [2022-12-13 14:22:19,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 14:22:19,321 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -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) [2022-12-13 14:22:19,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be9209c4-6e54-40f4-829a-ff07073aaa3b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (69)] Waiting until timeout for monitored process [2022-12-13 14:22:19,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:22:19,965 INFO L263 TraceCheckSpWp]: Trace formula consists of 381 conjuncts, 67 conjunts are in the unsatisfiable core [2022-12-13 14:22:19,970 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:22:19,974 INFO L350 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 [2022-12-13 14:22:20,014 INFO L321 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2022-12-13 14:22:20,014 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2022-12-13 14:22:20,212 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-13 14:22:20,219 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-13 14:22:20,363 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-12-13 14:22:20,363 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 40 [2022-12-13 14:22:20,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:22:20,373 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 22 treesize of output 24 [2022-12-13 14:22:20,454 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-12-13 14:22:20,454 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 40 [2022-12-13 14:22:20,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:22:20,463 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 22 treesize of output 24 [2022-12-13 14:22:20,519 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2022-12-13 14:22:20,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:22:20,571 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 16 treesize of output 18 [2022-12-13 14:22:22,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:22:22,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:22:22,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:22:22,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:22:22,674 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 47 [2022-12-13 14:22:22,762 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 49 [2022-12-13 14:22:22,779 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 23 treesize of output 22 [2022-12-13 14:22:24,924 INFO L321 Elim1Store]: treesize reduction 34, result has 33.3 percent of original size [2022-12-13 14:22:24,924 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 29 treesize of output 37 [2022-12-13 14:22:25,032 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-13 14:22:25,045 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-12-13 14:22:25,177 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 39 treesize of output 30 [2022-12-13 14:22:25,186 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 40 [2022-12-13 14:22:25,732 INFO L321 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-12-13 14:22:25,732 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 109 treesize of output 48 [2022-12-13 14:22:25,971 INFO L321 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-12-13 14:22:25,971 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 21 [2022-12-13 14:22:26,022 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-13 14:22:26,022 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 14:22:26,870 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 14:22:26,870 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 6534 treesize of output 6167