./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test15-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/bin/uautomizer-uyxdKDjOR8/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test15-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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 d2e5061cdab54d9faeb4b87debefa6d4cd511c313e4ad95bcaf137fbc78127a3 --- 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 14:44:05,620 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 14:44:05,621 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 14:44:05,640 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 14:44:05,641 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 14:44:05,642 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 14:44:05,643 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 14:44:05,645 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 14:44:05,646 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 14:44:05,647 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 14:44:05,648 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 14:44:05,649 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 14:44:05,649 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 14:44:05,650 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 14:44:05,651 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 14:44:05,652 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 14:44:05,653 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 14:44:05,654 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 14:44:05,656 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 14:44:05,657 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 14:44:05,659 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 14:44:05,660 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 14:44:05,661 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 14:44:05,662 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 14:44:05,665 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 14:44:05,665 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 14:44:05,666 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 14:44:05,667 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 14:44:05,667 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 14:44:05,669 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 14:44:05,669 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 14:44:05,670 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 14:44:05,671 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 14:44:05,672 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 14:44:05,672 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 14:44:05,673 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 14:44:05,673 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 14:44:05,673 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 14:44:05,674 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 14:44:05,674 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 14:44:05,674 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 14:44:05,675 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-12-13 14:44:05,695 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 14:44:05,695 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 14:44:05,695 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 14:44:05,695 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 14:44:05,696 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 14:44:05,696 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 14:44:05,697 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 14:44:05,697 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 14:44:05,697 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 14:44:05,697 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 14:44:05,698 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 14:44:05,698 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 14:44:05,698 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 14:44:05,698 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 14:44:05,698 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 14:44:05,698 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-13 14:44:05,699 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-13 14:44:05,699 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-13 14:44:05,699 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 14:44:05,699 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 14:44:05,699 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 14:44:05,699 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 14:44:05,699 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 14:44:05,700 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 14:44:05,700 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 14:44:05,700 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 14:44:05,700 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 14:44:05,700 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 14:44:05,700 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 14:44:05,700 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 14:44:05,700 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 14:44:05,701 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 14:44:05,701 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 14:44:05,701 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 14:44:05,701 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_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d2e5061cdab54d9faeb4b87debefa6d4cd511c313e4ad95bcaf137fbc78127a3 [2022-12-13 14:44:05,899 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 14:44:05,917 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 14:44:05,919 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 14:44:05,920 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 14:44:05,920 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 14:44:05,921 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/ldv-memsafety/memleaks_test15-2.i [2022-12-13 14:44:08,471 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 14:44:08,669 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 14:44:08,669 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/sv-benchmarks/c/ldv-memsafety/memleaks_test15-2.i [2022-12-13 14:44:08,681 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/bin/uautomizer-uyxdKDjOR8/data/a284a2f66/03db99067ec44354aabc36c293e58992/FLAGbae7ac318 [2022-12-13 14:44:08,693 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/bin/uautomizer-uyxdKDjOR8/data/a284a2f66/03db99067ec44354aabc36c293e58992 [2022-12-13 14:44:08,695 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 14:44:08,696 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 14:44:08,696 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 14:44:08,696 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 14:44:08,699 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 14:44:08,699 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 02:44:08" (1/1) ... [2022-12-13 14:44:08,700 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4697456f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:44:08, skipping insertion in model container [2022-12-13 14:44:08,700 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 02:44:08" (1/1) ... [2022-12-13 14:44:08,705 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 14:44:08,738 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 14:44:08,986 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 14:44:08,999 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 14:44:09,000 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2e5744f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:44:08, skipping insertion in model container [2022-12-13 14:44:09,000 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 14:44:09,000 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2022-12-13 14:44:09,001 INFO L158 Benchmark]: Toolchain (without parser) took 305.15ms. Allocated memory is still 130.0MB. Free memory was 86.6MB in the beginning and 72.3MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-13 14:44:09,002 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 130.0MB. Free memory is still 100.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 14:44:09,002 INFO L158 Benchmark]: CACSL2BoogieTranslator took 303.69ms. Allocated memory is still 130.0MB. Free memory was 86.6MB in the beginning and 72.3MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-13 14:44:09,003 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 130.0MB. Free memory is still 100.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 303.69ms. Allocated memory is still 130.0MB. Free memory was 86.6MB in the beginning and 72.3MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 576]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/bin/uautomizer-uyxdKDjOR8/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test15-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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 d2e5061cdab54d9faeb4b87debefa6d4cd511c313e4ad95bcaf137fbc78127a3 --- 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 14:44:10,355 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 14:44:10,357 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 14:44:10,375 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 14:44:10,376 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 14:44:10,377 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 14:44:10,378 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 14:44:10,379 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 14:44:10,381 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 14:44:10,382 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 14:44:10,383 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 14:44:10,384 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 14:44:10,384 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 14:44:10,385 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 14:44:10,386 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 14:44:10,387 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 14:44:10,388 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 14:44:10,388 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 14:44:10,390 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 14:44:10,391 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 14:44:10,393 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 14:44:10,394 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 14:44:10,395 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 14:44:10,396 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 14:44:10,399 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 14:44:10,399 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 14:44:10,399 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 14:44:10,400 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 14:44:10,401 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 14:44:10,402 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 14:44:10,402 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 14:44:10,403 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 14:44:10,403 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 14:44:10,404 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 14:44:10,410 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 14:44:10,410 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 14:44:10,411 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 14:44:10,411 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 14:44:10,411 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 14:44:10,412 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 14:44:10,413 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 14:44:10,414 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2022-12-13 14:44:10,436 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 14:44:10,436 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 14:44:10,436 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 14:44:10,437 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 14:44:10,437 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 14:44:10,438 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 14:44:10,438 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 14:44:10,438 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 14:44:10,439 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 14:44:10,439 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 14:44:10,439 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 14:44:10,439 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 14:44:10,439 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 14:44:10,440 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 14:44:10,440 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 14:44:10,440 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-13 14:44:10,440 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-13 14:44:10,440 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-13 14:44:10,440 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 14:44:10,441 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 14:44:10,441 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 14:44:10,441 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 14:44:10,441 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 14:44:10,441 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 14:44:10,442 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 14:44:10,442 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 14:44:10,442 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 14:44:10,442 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 14:44:10,443 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 14:44:10,443 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 14:44:10,443 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 14:44:10,443 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 14:44:10,443 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 14:44:10,443 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 14:44:10,444 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 14:44:10,444 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 14:44:10,444 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 14:44:10,444 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_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d2e5061cdab54d9faeb4b87debefa6d4cd511c313e4ad95bcaf137fbc78127a3 [2022-12-13 14:44:10,682 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 14:44:10,696 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 14:44:10,698 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 14:44:10,698 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 14:44:10,699 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 14:44:10,700 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/ldv-memsafety/memleaks_test15-2.i [2022-12-13 14:44:13,296 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 14:44:13,477 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 14:44:13,478 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/sv-benchmarks/c/ldv-memsafety/memleaks_test15-2.i [2022-12-13 14:44:13,488 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/bin/uautomizer-uyxdKDjOR8/data/1b35c2f02/15fae583de534d00ab791a9bd14637b6/FLAG4b04cc283 [2022-12-13 14:44:13,499 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/bin/uautomizer-uyxdKDjOR8/data/1b35c2f02/15fae583de534d00ab791a9bd14637b6 [2022-12-13 14:44:13,501 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 14:44:13,502 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 14:44:13,503 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 14:44:13,503 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 14:44:13,506 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 14:44:13,506 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 02:44:13" (1/1) ... [2022-12-13 14:44:13,507 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31195749 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:44:13, skipping insertion in model container [2022-12-13 14:44:13,507 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 02:44:13" (1/1) ... [2022-12-13 14:44:13,512 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 14:44:13,540 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 14:44:13,785 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 14:44:13,800 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-12-13 14:44:13,805 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 14:44:13,862 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 14:44:13,868 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 14:44:13,906 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 14:44:13,930 INFO L208 MainTranslator]: Completed translation [2022-12-13 14:44:13,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:44:13 WrapperNode [2022-12-13 14:44:13,931 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 14:44:13,931 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 14:44:13,931 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 14:44:13,931 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 14:44:13,936 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:44:13" (1/1) ... [2022-12-13 14:44:13,951 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:44:13" (1/1) ... [2022-12-13 14:44:13,969 INFO L138 Inliner]: procedures = 176, calls = 104, calls flagged for inlining = 31, calls inlined = 14, statements flattened = 171 [2022-12-13 14:44:13,969 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 14:44:13,969 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 14:44:13,969 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 14:44:13,970 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 14:44:13,976 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:44:13" (1/1) ... [2022-12-13 14:44:13,977 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:44:13" (1/1) ... [2022-12-13 14:44:13,979 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:44:13" (1/1) ... [2022-12-13 14:44:13,979 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:44:13" (1/1) ... [2022-12-13 14:44:13,986 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:44:13" (1/1) ... [2022-12-13 14:44:13,988 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:44:13" (1/1) ... [2022-12-13 14:44:13,989 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:44:13" (1/1) ... [2022-12-13 14:44:13,990 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:44:13" (1/1) ... [2022-12-13 14:44:13,992 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 14:44:13,993 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 14:44:13,993 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 14:44:13,993 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 14:44:13,994 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:44:13" (1/1) ... [2022-12-13 14:44:13,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 14:44:14,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:44:14,018 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 14:44:14,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 14:44:14,046 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-12-13 14:44:14,046 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-12-13 14:44:14,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-12-13 14:44:14,046 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-13 14:44:14,046 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 14:44:14,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-13 14:44:14,047 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_hid_set_drvdata [2022-12-13 14:44:14,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_hid_set_drvdata [2022-12-13 14:44:14,047 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-13 14:44:14,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-12-13 14:44:14,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-12-13 14:44:14,047 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 14:44:14,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-13 14:44:14,048 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 14:44:14,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 14:44:14,158 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 14:44:14,161 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 14:44:14,599 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 14:44:14,606 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 14:44:14,606 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 14:44:14,608 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:44:14 BoogieIcfgContainer [2022-12-13 14:44:14,609 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 14:44:14,611 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 14:44:14,611 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 14:44:14,614 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 14:44:14,614 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 02:44:13" (1/3) ... [2022-12-13 14:44:14,615 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fc3f7d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 02:44:14, skipping insertion in model container [2022-12-13 14:44:14,615 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:44:13" (2/3) ... [2022-12-13 14:44:14,616 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fc3f7d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 02:44:14, skipping insertion in model container [2022-12-13 14:44:14,616 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:44:14" (3/3) ... [2022-12-13 14:44:14,617 INFO L112 eAbstractionObserver]: Analyzing ICFG memleaks_test15-2.i [2022-12-13 14:44:14,634 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 14:44:14,634 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 50 error locations. [2022-12-13 14:44:14,673 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 14:44:14,678 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;@7227fac8, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 14:44:14,678 INFO L358 AbstractCegarLoop]: Starting to check reachability of 50 error locations. [2022-12-13 14:44:14,681 INFO L276 IsEmpty]: Start isEmpty. Operand has 135 states, 77 states have (on average 1.7922077922077921) internal successors, (138), 127 states have internal predecessors, (138), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-12-13 14:44:14,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-13 14:44:14,686 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:44:14,687 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:44:14,687 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_LEAK === [ldv_hid_set_drvdataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ldv_hid_set_drvdataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 48 more)] === [2022-12-13 14:44:14,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:44:14,691 INFO L85 PathProgramCache]: Analyzing trace with hash -1983254393, now seen corresponding path program 1 times [2022-12-13 14:44:14,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 14:44:14,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [784540396] [2022-12-13 14:44:14,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:44:14,700 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 14:44:14,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 14:44:14,702 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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 14:44:14,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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 14:44:14,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:44:14,765 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 14:44:14,770 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:44:14,836 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 14:44:14,836 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 14:44:14,836 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 14:44:14,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [784540396] [2022-12-13 14:44:14,837 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [784540396] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:44:14,837 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:44:14,837 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 14:44:14,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747332965] [2022-12-13 14:44:14,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:44:14,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 14:44:14,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 14:44:14,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 14:44:14,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 14:44:14,866 INFO L87 Difference]: Start difference. First operand has 135 states, 77 states have (on average 1.7922077922077921) internal successors, (138), 127 states have internal predecessors, (138), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 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 14:44:14,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:44:14,983 INFO L93 Difference]: Finished difference Result 257 states and 287 transitions. [2022-12-13 14:44:14,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 14:44:14,985 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 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 11 [2022-12-13 14:44:14,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:44:14,993 INFO L225 Difference]: With dead ends: 257 [2022-12-13 14:44:14,993 INFO L226 Difference]: Without dead ends: 253 [2022-12-13 14:44:14,994 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 14:44:14,997 INFO L413 NwaCegarLoop]: 147 mSDtfsCounter, 124 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 568 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 14:44:14,997 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 568 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 14:44:15,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2022-12-13 14:44:15,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 137. [2022-12-13 14:44:15,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 79 states have (on average 1.759493670886076) internal successors, (139), 128 states have internal predecessors, (139), 5 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (8), 6 states have call predecessors, (8), 5 states have call successors, (8) [2022-12-13 14:44:15,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 152 transitions. [2022-12-13 14:44:15,036 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 152 transitions. Word has length 11 [2022-12-13 14:44:15,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:44:15,036 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 152 transitions. [2022-12-13 14:44:15,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 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 14:44:15,036 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 152 transitions. [2022-12-13 14:44:15,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-13 14:44:15,037 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:44:15,037 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:44:15,048 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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 14:44:15,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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 14:44:15,239 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_LEAK === [ldv_hid_set_drvdataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ldv_hid_set_drvdataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 48 more)] === [2022-12-13 14:44:15,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:44:15,242 INFO L85 PathProgramCache]: Analyzing trace with hash -1095750712, now seen corresponding path program 1 times [2022-12-13 14:44:15,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 14:44:15,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [475296752] [2022-12-13 14:44:15,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:44:15,244 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 14:44:15,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 14:44:15,247 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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 14:44:15,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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 14:44:15,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:44:15,407 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 14:44:15,408 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:44:15,436 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 14:44:15,436 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 14:44:15,436 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 14:44:15,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [475296752] [2022-12-13 14:44:15,437 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [475296752] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:44:15,437 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:44:15,437 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 14:44:15,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356079663] [2022-12-13 14:44:15,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:44:15,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 14:44:15,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 14:44:15,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 14:44:15,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 14:44:15,440 INFO L87 Difference]: Start difference. First operand 137 states and 152 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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 14:44:15,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:44:15,800 INFO L93 Difference]: Finished difference Result 226 states and 251 transitions. [2022-12-13 14:44:15,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 14:44:15,801 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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 11 [2022-12-13 14:44:15,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:44:15,802 INFO L225 Difference]: With dead ends: 226 [2022-12-13 14:44:15,803 INFO L226 Difference]: Without dead ends: 224 [2022-12-13 14:44:15,803 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 14:44:15,804 INFO L413 NwaCegarLoop]: 204 mSDtfsCounter, 92 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 14:44:15,805 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 436 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 14:44:15,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2022-12-13 14:44:15,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 133. [2022-12-13 14:44:15,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 76 states have (on average 1.7763157894736843) internal successors, (135), 125 states have internal predecessors, (135), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-12-13 14:44:15,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 145 transitions. [2022-12-13 14:44:15,816 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 145 transitions. Word has length 11 [2022-12-13 14:44:15,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:44:15,816 INFO L495 AbstractCegarLoop]: Abstraction has 133 states and 145 transitions. [2022-12-13 14:44:15,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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 14:44:15,817 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 145 transitions. [2022-12-13 14:44:15,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-13 14:44:15,817 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:44:15,817 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:44:15,828 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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 14:44:16,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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 14:44:16,019 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE === [ldv_hid_set_drvdataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ldv_hid_set_drvdataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 48 more)] === [2022-12-13 14:44:16,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:44:16,020 INFO L85 PathProgramCache]: Analyzing trace with hash 1690514833, now seen corresponding path program 1 times [2022-12-13 14:44:16,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 14:44:16,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1995785975] [2022-12-13 14:44:16,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:44:16,021 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 14:44:16,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 14:44:16,023 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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 14:44:16,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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 14:44:16,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:44:16,178 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 14:44:16,180 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:44:16,203 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 14:44:16,203 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 14:44:16,204 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 14:44:16,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1995785975] [2022-12-13 14:44:16,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1995785975] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:44:16,204 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:44:16,204 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 14:44:16,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883698005] [2022-12-13 14:44:16,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:44:16,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 14:44:16,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 14:44:16,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 14:44:16,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 14:44:16,206 INFO L87 Difference]: Start difference. First operand 133 states and 145 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-13 14:44:16,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:44:16,329 INFO L93 Difference]: Finished difference Result 250 states and 276 transitions. [2022-12-13 14:44:16,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 14:44:16,330 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2022-12-13 14:44:16,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:44:16,331 INFO L225 Difference]: With dead ends: 250 [2022-12-13 14:44:16,331 INFO L226 Difference]: Without dead ends: 250 [2022-12-13 14:44:16,332 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 14:44:16,332 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 119 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 531 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 14:44:16,333 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 531 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 14:44:16,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2022-12-13 14:44:16,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 137. [2022-12-13 14:44:16,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 79 states have (on average 1.7468354430379747) internal successors, (138), 128 states have internal predecessors, (138), 5 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (8), 6 states have call predecessors, (8), 5 states have call successors, (8) [2022-12-13 14:44:16,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 151 transitions. [2022-12-13 14:44:16,339 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 151 transitions. Word has length 17 [2022-12-13 14:44:16,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:44:16,339 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 151 transitions. [2022-12-13 14:44:16,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-13 14:44:16,340 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 151 transitions. [2022-12-13 14:44:16,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-13 14:44:16,340 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:44:16,340 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:44:16,351 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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)] Ended with exit code 0 [2022-12-13 14:44:16,541 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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 14:44:16,542 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE === [ldv_hid_set_drvdataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ldv_hid_set_drvdataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 48 more)] === [2022-12-13 14:44:16,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:44:16,543 INFO L85 PathProgramCache]: Analyzing trace with hash 1719143984, now seen corresponding path program 1 times [2022-12-13 14:44:16,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 14:44:16,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1209691275] [2022-12-13 14:44:16,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:44:16,545 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 14:44:16,545 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 14:44:16,547 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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 14:44:16,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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 14:44:16,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:44:16,697 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 14:44:16,699 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:44:16,723 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 14:44:16,723 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 14:44:16,749 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 14:44:16,749 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 14:44:16,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1209691275] [2022-12-13 14:44:16,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1209691275] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 14:44:16,749 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 14:44:16,749 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2022-12-13 14:44:16,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211462598] [2022-12-13 14:44:16,750 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 14:44:16,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 14:44:16,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 14:44:16,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 14:44:16,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 14:44:16,750 INFO L87 Difference]: Start difference. First operand 137 states and 151 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (2), 1 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 14:44:16,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:44:16,779 INFO L93 Difference]: Finished difference Result 136 states and 150 transitions. [2022-12-13 14:44:16,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 14:44:16,780 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (2), 1 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 17 [2022-12-13 14:44:16,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:44:16,780 INFO L225 Difference]: With dead ends: 136 [2022-12-13 14:44:16,780 INFO L226 Difference]: Without dead ends: 136 [2022-12-13 14:44:16,780 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 14:44:16,781 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 118 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 420 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 14:44:16,782 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 420 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 14:44:16,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2022-12-13 14:44:16,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2022-12-13 14:44:16,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 79 states have (on average 1.7341772151898733) internal successors, (137), 127 states have internal predecessors, (137), 5 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (8), 6 states have call predecessors, (8), 5 states have call successors, (8) [2022-12-13 14:44:16,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 150 transitions. [2022-12-13 14:44:16,792 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 150 transitions. Word has length 17 [2022-12-13 14:44:16,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:44:16,792 INFO L495 AbstractCegarLoop]: Abstraction has 136 states and 150 transitions. [2022-12-13 14:44:16,792 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (2), 1 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 14:44:16,792 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 150 transitions. [2022-12-13 14:44:16,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-12-13 14:44:16,793 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:44:16,793 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:44:16,803 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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 14:44:16,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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 14:44:16,995 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_FREE === [ldv_hid_set_drvdataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ldv_hid_set_drvdataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 48 more)] === [2022-12-13 14:44:16,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:44:16,997 INFO L85 PathProgramCache]: Analyzing trace with hash 1753856167, now seen corresponding path program 1 times [2022-12-13 14:44:16,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 14:44:16,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [864136525] [2022-12-13 14:44:16,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:44:17,000 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 14:44:17,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 14:44:17,003 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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 14:44:17,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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 14:44:17,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:44:17,137 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 14:44:17,139 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:44:17,325 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:44:17,326 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 14:44:17,395 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 14:44:17,395 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 14:44:17,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [864136525] [2022-12-13 14:44:17,395 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [864136525] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 14:44:17,395 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 14:44:17,395 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 9 [2022-12-13 14:44:17,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224264745] [2022-12-13 14:44:17,395 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 14:44:17,396 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 14:44:17,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 14:44:17,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 14:44:17,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-12-13 14:44:17,396 INFO L87 Difference]: Start difference. First operand 136 states and 150 transitions. Second operand has 10 states, 9 states have (on average 3.0) internal successors, (27), 8 states have internal predecessors, (27), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-13 14:44:17,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:44:17,781 INFO L93 Difference]: Finished difference Result 348 states and 384 transitions. [2022-12-13 14:44:17,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 14:44:17,782 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.0) internal successors, (27), 8 states have internal predecessors, (27), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 18 [2022-12-13 14:44:17,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:44:17,785 INFO L225 Difference]: With dead ends: 348 [2022-12-13 14:44:17,785 INFO L226 Difference]: Without dead ends: 348 [2022-12-13 14:44:17,785 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2022-12-13 14:44:17,786 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 678 mSDsluCounter, 422 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 686 SdHoareTripleChecker+Valid, 543 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 14:44:17,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [686 Valid, 543 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 14:44:17,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2022-12-13 14:44:17,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 165. [2022-12-13 14:44:17,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 104 states have (on average 1.7596153846153846) internal successors, (183), 151 states have internal predecessors, (183), 8 states have call successors, (8), 4 states have call predecessors, (8), 5 states have return successors, (13), 9 states have call predecessors, (13), 8 states have call successors, (13) [2022-12-13 14:44:17,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 204 transitions. [2022-12-13 14:44:17,793 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 204 transitions. Word has length 18 [2022-12-13 14:44:17,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:44:17,793 INFO L495 AbstractCegarLoop]: Abstraction has 165 states and 204 transitions. [2022-12-13 14:44:17,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.0) internal successors, (27), 8 states have internal predecessors, (27), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-13 14:44:17,794 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 204 transitions. [2022-12-13 14:44:17,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-12-13 14:44:17,794 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:44:17,794 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:44:17,805 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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 14:44:17,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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 14:44:17,995 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE === [ldv_hid_set_drvdataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ldv_hid_set_drvdataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 48 more)] === [2022-12-13 14:44:17,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:44:17,995 INFO L85 PathProgramCache]: Analyzing trace with hash -1465033454, now seen corresponding path program 1 times [2022-12-13 14:44:17,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 14:44:17,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1820887755] [2022-12-13 14:44:17,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:44:17,996 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 14:44:17,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 14:44:17,997 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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 14:44:17,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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 14:44:18,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:44:18,039 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 14:44:18,040 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:44:18,065 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 14:44:18,112 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:44:18,113 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 14:44:18,195 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:44:18,195 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 14:44:18,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1820887755] [2022-12-13 14:44:18,195 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1820887755] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 14:44:18,195 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 14:44:18,195 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2022-12-13 14:44:18,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583629819] [2022-12-13 14:44:18,195 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 14:44:18,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 14:44:18,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 14:44:18,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 14:44:18,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-13 14:44:18,197 INFO L87 Difference]: Start difference. First operand 165 states and 204 transitions. Second operand has 7 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 2 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-13 14:44:18,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:44:18,664 INFO L93 Difference]: Finished difference Result 233 states and 278 transitions. [2022-12-13 14:44:18,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 14:44:18,664 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 2 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 19 [2022-12-13 14:44:18,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:44:18,666 INFO L225 Difference]: With dead ends: 233 [2022-12-13 14:44:18,666 INFO L226 Difference]: Without dead ends: 233 [2022-12-13 14:44:18,666 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-12-13 14:44:18,667 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 111 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-13 14:44:18,667 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 433 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-13 14:44:18,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2022-12-13 14:44:18,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 179. [2022-12-13 14:44:18,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 117 states have (on average 1.7606837606837606) internal successors, (206), 163 states have internal predecessors, (206), 9 states have call successors, (9), 4 states have call predecessors, (9), 5 states have return successors, (15), 11 states have call predecessors, (15), 9 states have call successors, (15) [2022-12-13 14:44:18,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 230 transitions. [2022-12-13 14:44:18,673 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 230 transitions. Word has length 19 [2022-12-13 14:44:18,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:44:18,674 INFO L495 AbstractCegarLoop]: Abstraction has 179 states and 230 transitions. [2022-12-13 14:44:18,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 2 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-13 14:44:18,674 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 230 transitions. [2022-12-13 14:44:18,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-12-13 14:44:18,674 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:44:18,674 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:44:18,683 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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 14:44:18,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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 14:44:18,876 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE === [ldv_hid_set_drvdataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ldv_hid_set_drvdataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 48 more)] === [2022-12-13 14:44:18,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:44:18,877 INFO L85 PathProgramCache]: Analyzing trace with hash 42518355, now seen corresponding path program 1 times [2022-12-13 14:44:18,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 14:44:18,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1494422964] [2022-12-13 14:44:18,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:44:18,878 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 14:44:18,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 14:44:18,879 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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 14:44:18,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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 14:44:18,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:44:18,953 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 14:44:18,954 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:44:18,982 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:44:18,982 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 14:44:18,982 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 14:44:18,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1494422964] [2022-12-13 14:44:18,983 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1494422964] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:44:18,983 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:44:18,983 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 14:44:18,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390193904] [2022-12-13 14:44:18,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:44:18,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 14:44:18,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 14:44:18,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 14:44:18,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 14:44:18,984 INFO L87 Difference]: Start difference. First operand 179 states and 230 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 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 14:44:19,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:44:19,016 INFO L93 Difference]: Finished difference Result 143 states and 156 transitions. [2022-12-13 14:44:19,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 14:44:19,016 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 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 19 [2022-12-13 14:44:19,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:44:19,017 INFO L225 Difference]: With dead ends: 143 [2022-12-13 14:44:19,017 INFO L226 Difference]: Without dead ends: 139 [2022-12-13 14:44:19,017 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 14:44:19,018 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 0 mSDsluCounter, 415 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 560 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 14:44:19,018 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 560 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 14:44:19,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2022-12-13 14:44:19,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2022-12-13 14:44:19,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 84 states have (on average 1.6666666666666667) internal successors, (140), 129 states have internal predecessors, (140), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (7), 6 states have call predecessors, (7), 5 states have call successors, (7) [2022-12-13 14:44:19,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 152 transitions. [2022-12-13 14:44:19,022 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 152 transitions. Word has length 19 [2022-12-13 14:44:19,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:44:19,022 INFO L495 AbstractCegarLoop]: Abstraction has 139 states and 152 transitions. [2022-12-13 14:44:19,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 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 14:44:19,022 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 152 transitions. [2022-12-13 14:44:19,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-13 14:44:19,023 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:44:19,023 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:44:19,033 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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 14:44:19,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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 14:44:19,224 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ldv_hid_set_drvdataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ldv_hid_set_drvdataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 48 more)] === [2022-12-13 14:44:19,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:44:19,226 INFO L85 PathProgramCache]: Analyzing trace with hash 204799578, now seen corresponding path program 1 times [2022-12-13 14:44:19,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 14:44:19,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [551623303] [2022-12-13 14:44:19,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:44:19,236 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 14:44:19,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 14:44:19,238 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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 14:44:19,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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 14:44:19,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:44:19,296 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-13 14:44:19,297 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:44:19,301 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 14:44:19,337 WARN L859 $PredicateComparison]: unable to prove that (exists ((|ldv_malloc_#res.base| (_ BitVec 32))) (= (store |c_old(#valid)| |ldv_malloc_#res.base| (_ bv1 1)) |c_#valid|)) is different from true [2022-12-13 14:44:19,354 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-12-13 14:44:19,355 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 14:44:19,365 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 2 not checked. [2022-12-13 14:44:19,365 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 14:44:19,486 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 14:44:19,487 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 14:44:19,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [551623303] [2022-12-13 14:44:19,487 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [551623303] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 14:44:19,487 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 14:44:19,487 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 7 [2022-12-13 14:44:19,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093927750] [2022-12-13 14:44:19,487 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 14:44:19,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 14:44:19,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 14:44:19,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 14:44:19,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=31, Unknown=1, NotChecked=10, Total=56 [2022-12-13 14:44:19,488 INFO L87 Difference]: Start difference. First operand 139 states and 152 transitions. Second operand has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 2 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-13 14:44:19,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:44:19,938 INFO L93 Difference]: Finished difference Result 177 states and 195 transitions. [2022-12-13 14:44:19,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 14:44:19,938 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 2 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 22 [2022-12-13 14:44:19,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:44:19,939 INFO L225 Difference]: With dead ends: 177 [2022-12-13 14:44:19,939 INFO L226 Difference]: Without dead ends: 177 [2022-12-13 14:44:19,939 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 33 SyntacticMatches, 3 SemanticMatches, 7 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=41, Unknown=1, NotChecked=12, Total=72 [2022-12-13 14:44:19,940 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 106 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 188 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-13 14:44:19,940 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 433 Invalid, 562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 362 Invalid, 0 Unknown, 188 Unchecked, 0.4s Time] [2022-12-13 14:44:19,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2022-12-13 14:44:19,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 155. [2022-12-13 14:44:19,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 101 states have (on average 1.6633663366336633) internal successors, (168), 144 states have internal predecessors, (168), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (9), 7 states have call predecessors, (9), 6 states have call successors, (9) [2022-12-13 14:44:19,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 183 transitions. [2022-12-13 14:44:19,943 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 183 transitions. Word has length 22 [2022-12-13 14:44:19,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:44:19,944 INFO L495 AbstractCegarLoop]: Abstraction has 155 states and 183 transitions. [2022-12-13 14:44:19,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 2 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-13 14:44:19,944 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 183 transitions. [2022-12-13 14:44:19,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-13 14:44:19,944 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:44:19,944 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:44:19,955 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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 14:44:20,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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 14:44:20,145 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ldv_hid_set_drvdataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ldv_hid_set_drvdataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 48 more)] === [2022-12-13 14:44:20,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:44:20,145 INFO L85 PathProgramCache]: Analyzing trace with hash 204799579, now seen corresponding path program 1 times [2022-12-13 14:44:20,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 14:44:20,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [560516509] [2022-12-13 14:44:20,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:44:20,146 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 14:44:20,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 14:44:20,146 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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 14:44:20,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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 14:44:20,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:44:20,194 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 18 conjunts are in the unsatisfiable core [2022-12-13 14:44:20,195 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:44:20,206 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 14:44:20,210 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 14:44:20,309 WARN L859 $PredicateComparison]: unable to prove that (exists ((|ldv_malloc_#res.base| (_ BitVec 32))) (and (exists ((v_ArrVal_33 (_ BitVec 32))) (= (store |c_old(#length)| |ldv_malloc_#res.base| v_ArrVal_33) |c_#length|)) (= (_ bv0 1) (select |c_old(#valid)| |ldv_malloc_#res.base|)))) is different from true [2022-12-13 14:44:20,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:44:20,339 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 14:44:20,348 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-12-13 14:44:20,348 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 14:44:20,366 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 2 not checked. [2022-12-13 14:44:20,366 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 14:44:20,579 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 14:44:20,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [560516509] [2022-12-13 14:44:20,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [560516509] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 14:44:20,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [489474814] [2022-12-13 14:44:20,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:44:20,580 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-13 14:44:20,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/bin/uautomizer-uyxdKDjOR8/cvc4 [2022-12-13 14:44:20,598 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-13 14:44:20,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2022-12-13 14:44:20,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:44:20,704 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 18 conjunts are in the unsatisfiable core [2022-12-13 14:44:20,706 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:44:20,713 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 14:44:20,718 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 14:44:20,765 WARN L859 $PredicateComparison]: unable to prove that (exists ((|ldv_malloc_#res.base| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| |ldv_malloc_#res.base|)) (exists ((v_ArrVal_45 (_ BitVec 32))) (= (store |c_old(#length)| |ldv_malloc_#res.base| v_ArrVal_45) |c_#length|)))) is different from true [2022-12-13 14:44:20,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:44:20,786 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 14:44:20,796 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-12-13 14:44:20,797 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 14:44:20,798 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 2 not checked. [2022-12-13 14:44:20,799 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 14:44:20,951 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [489474814] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 14:44:20,951 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 14:44:20,951 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2022-12-13 14:44:20,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868738702] [2022-12-13 14:44:20,952 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 14:44:20,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 14:44:20,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 14:44:20,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 14:44:20,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=71, Unknown=2, NotChecked=34, Total=132 [2022-12-13 14:44:20,953 INFO L87 Difference]: Start difference. First operand 155 states and 183 transitions. Second operand has 10 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-13 14:44:21,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:44:21,905 INFO L93 Difference]: Finished difference Result 292 states and 331 transitions. [2022-12-13 14:44:21,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 14:44:21,906 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 22 [2022-12-13 14:44:21,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:44:21,906 INFO L225 Difference]: With dead ends: 292 [2022-12-13 14:44:21,906 INFO L226 Difference]: Without dead ends: 292 [2022-12-13 14:44:21,907 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=33, Invalid=105, Unknown=2, NotChecked=42, Total=182 [2022-12-13 14:44:21,907 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 249 mSDsluCounter, 635 mSDsCounter, 0 mSdLazyCounter, 645 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 824 SdHoareTripleChecker+Invalid, 1067 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 645 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 403 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-13 14:44:21,907 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [251 Valid, 824 Invalid, 1067 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 645 Invalid, 0 Unknown, 403 Unchecked, 0.9s Time] [2022-12-13 14:44:21,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2022-12-13 14:44:21,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 226. [2022-12-13 14:44:21,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 170 states have (on average 1.6823529411764706) internal successors, (286), 213 states have internal predecessors, (286), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (11), 9 states have call predecessors, (11), 8 states have call successors, (11) [2022-12-13 14:44:21,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 305 transitions. [2022-12-13 14:44:21,912 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 305 transitions. Word has length 22 [2022-12-13 14:44:21,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:44:21,912 INFO L495 AbstractCegarLoop]: Abstraction has 226 states and 305 transitions. [2022-12-13 14:44:21,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-13 14:44:21,912 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 305 transitions. [2022-12-13 14:44:21,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-12-13 14:44:21,913 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:44:21,913 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:44:21,920 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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 14:44:22,115 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (11)] Ended with exit code 0 [2022-12-13 14:44:22,314 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt [2022-12-13 14:44:22,315 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_LEAK === [ldv_hid_set_drvdataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ldv_hid_set_drvdataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 48 more)] === [2022-12-13 14:44:22,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:44:22,315 INFO L85 PathProgramCache]: Analyzing trace with hash 852130837, now seen corresponding path program 1 times [2022-12-13 14:44:22,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 14:44:22,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2145487379] [2022-12-13 14:44:22,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:44:22,315 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 14:44:22,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 14:44:22,316 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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 14:44:22,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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 14:44:22,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:44:22,364 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-13 14:44:22,365 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:44:22,463 WARN L859 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_entry_point_~hdev~0#1.base| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |ULTIMATE.start_entry_point_~hdev~0#1.base|)) (= |c_#valid| (store |c_ULTIMATE.start_main_old_#valid#1| |ULTIMATE.start_entry_point_~hdev~0#1.base| (_ bv0 1))))) is different from true [2022-12-13 14:44:22,469 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 14:44:22,469 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 14:44:22,540 WARN L837 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_entry_point_#t~ret53#1.base_19| (_ BitVec 32))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_entry_point_#t~ret53#1.base_19|))) (= |c_ULTIMATE.start_main_old_#valid#1| (store |c_#valid| |v_ULTIMATE.start_entry_point_#t~ret53#1.base_19| (_ bv0 1))))) is different from false [2022-12-13 14:44:22,541 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 14:44:22,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2145487379] [2022-12-13 14:44:22,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2145487379] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 14:44:22,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1732242616] [2022-12-13 14:44:22,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:44:22,542 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-13 14:44:22,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/bin/uautomizer-uyxdKDjOR8/cvc4 [2022-12-13 14:44:22,542 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-13 14:44:22,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2022-12-13 14:44:22,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:44:22,617 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 13 conjunts are in the unsatisfiable core [2022-12-13 14:44:22,619 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:44:22,783 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 14:44:22,784 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 14:44:22,844 WARN L837 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_entry_point_#t~ret53#1.base_22| (_ BitVec 32))) (or (= (store |c_#valid| |v_ULTIMATE.start_entry_point_#t~ret53#1.base_22| (_ bv0 1)) |c_ULTIMATE.start_main_old_#valid#1|) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_entry_point_#t~ret53#1.base_22|))))) is different from false [2022-12-13 14:44:22,845 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1732242616] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 14:44:22,845 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 14:44:22,845 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 11 [2022-12-13 14:44:22,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042045102] [2022-12-13 14:44:22,845 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 14:44:22,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 14:44:22,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 14:44:22,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 14:44:22,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=126, Unknown=3, NotChecked=72, Total=240 [2022-12-13 14:44:22,846 INFO L87 Difference]: Start difference. First operand 226 states and 305 transitions. Second operand has 12 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-13 14:44:23,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:44:23,747 INFO L93 Difference]: Finished difference Result 300 states and 384 transitions. [2022-12-13 14:44:23,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 14:44:23,747 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 21 [2022-12-13 14:44:23,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:44:23,748 INFO L225 Difference]: With dead ends: 300 [2022-12-13 14:44:23,748 INFO L226 Difference]: Without dead ends: 295 [2022-12-13 14:44:23,748 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 52 SyntacticMatches, 4 SemanticMatches, 20 ConstructedPredicates, 3 IntricatePredicates, 2 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=75, Invalid=276, Unknown=3, NotChecked=108, Total=462 [2022-12-13 14:44:23,749 INFO L413 NwaCegarLoop]: 130 mSDtfsCounter, 282 mSDsluCounter, 683 mSDsCounter, 0 mSdLazyCounter, 641 mSolverCounterSat, 27 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 813 SdHoareTripleChecker+Invalid, 891 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 641 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 222 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-13 14:44:23,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [284 Valid, 813 Invalid, 891 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 641 Invalid, 1 Unknown, 222 Unchecked, 0.8s Time] [2022-12-13 14:44:23,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2022-12-13 14:44:23,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 223. [2022-12-13 14:44:23,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 167 states have (on average 1.688622754491018) internal successors, (282), 210 states have internal predecessors, (282), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (11), 9 states have call predecessors, (11), 8 states have call successors, (11) [2022-12-13 14:44:23,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 301 transitions. [2022-12-13 14:44:23,754 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 301 transitions. Word has length 21 [2022-12-13 14:44:23,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:44:23,754 INFO L495 AbstractCegarLoop]: Abstraction has 223 states and 301 transitions. [2022-12-13 14:44:23,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-13 14:44:23,754 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 301 transitions. [2022-12-13 14:44:23,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-13 14:44:23,754 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:44:23,755 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:44:23,756 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (13)] Ended with exit code 0 [2022-12-13 14:44:23,979 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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 14:44:24,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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 14:44:24,157 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ldv_hid_set_drvdataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ldv_hid_set_drvdataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 48 more)] === [2022-12-13 14:44:24,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:44:24,158 INFO L85 PathProgramCache]: Analyzing trace with hash -1592151781, now seen corresponding path program 1 times [2022-12-13 14:44:24,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 14:44:24,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [475503074] [2022-12-13 14:44:24,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:44:24,159 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 14:44:24,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 14:44:24,162 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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 14:44:24,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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 14:44:24,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:44:24,248 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 14:44:24,250 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:44:24,281 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 14:44:24,281 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 14:44:24,281 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 14:44:24,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [475503074] [2022-12-13 14:44:24,281 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [475503074] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:44:24,281 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:44:24,281 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 14:44:24,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349731830] [2022-12-13 14:44:24,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:44:24,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 14:44:24,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 14:44:24,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 14:44:24,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 14:44:24,283 INFO L87 Difference]: Start difference. First operand 223 states and 301 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-13 14:44:24,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:44:24,317 INFO L93 Difference]: Finished difference Result 144 states and 165 transitions. [2022-12-13 14:44:24,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 14:44:24,317 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 22 [2022-12-13 14:44:24,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:44:24,318 INFO L225 Difference]: With dead ends: 144 [2022-12-13 14:44:24,318 INFO L226 Difference]: Without dead ends: 142 [2022-12-13 14:44:24,318 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 14:44:24,318 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 0 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 14:44:24,319 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 517 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 14:44:24,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2022-12-13 14:44:24,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2022-12-13 14:44:24,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 95 states have (on average 1.6) internal successors, (152), 133 states have internal predecessors, (152), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2022-12-13 14:44:24,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 163 transitions. [2022-12-13 14:44:24,326 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 163 transitions. Word has length 22 [2022-12-13 14:44:24,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:44:24,326 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 163 transitions. [2022-12-13 14:44:24,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-13 14:44:24,326 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 163 transitions. [2022-12-13 14:44:24,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-12-13 14:44:24,326 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:44:24,327 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:44:24,334 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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 14:44:24,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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 14:44:24,528 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_FREE === [ldv_hid_set_drvdataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ldv_hid_set_drvdataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 48 more)] === [2022-12-13 14:44:24,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:44:24,528 INFO L85 PathProgramCache]: Analyzing trace with hash 2097726863, now seen corresponding path program 1 times [2022-12-13 14:44:24,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 14:44:24,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1887905958] [2022-12-13 14:44:24,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:44:24,529 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 14:44:24,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 14:44:24,531 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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 14:44:24,533 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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 14:44:24,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:44:24,639 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 14:44:24,640 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:44:24,652 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 14:44:24,669 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 20 treesize of output 8 [2022-12-13 14:44:24,676 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-12-13 14:44:24,676 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 14:44:24,676 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 14:44:24,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1887905958] [2022-12-13 14:44:24,676 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1887905958] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:44:24,676 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:44:24,676 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 14:44:24,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564132212] [2022-12-13 14:44:24,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:44:24,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 14:44:24,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 14:44:24,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 14:44:24,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 14:44:24,678 INFO L87 Difference]: Start difference. First operand 142 states and 163 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-13 14:44:24,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:44:24,807 INFO L93 Difference]: Finished difference Result 150 states and 171 transitions. [2022-12-13 14:44:24,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 14:44:24,807 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 27 [2022-12-13 14:44:24,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:44:24,808 INFO L225 Difference]: With dead ends: 150 [2022-12-13 14:44:24,808 INFO L226 Difference]: Without dead ends: 150 [2022-12-13 14:44:24,808 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-12-13 14:44:24,809 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 6 mSDsluCounter, 483 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 14:44:24,809 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 611 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 14:44:24,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2022-12-13 14:44:24,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 146. [2022-12-13 14:44:24,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 99 states have (on average 1.5757575757575757) internal successors, (156), 136 states have internal predecessors, (156), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) [2022-12-13 14:44:24,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 167 transitions. [2022-12-13 14:44:24,811 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 167 transitions. Word has length 27 [2022-12-13 14:44:24,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:44:24,812 INFO L495 AbstractCegarLoop]: Abstraction has 146 states and 167 transitions. [2022-12-13 14:44:24,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-13 14:44:24,812 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 167 transitions. [2022-12-13 14:44:24,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-12-13 14:44:24,812 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:44:24,812 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:44:24,823 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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 14:44:25,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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 14:44:25,013 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ldv_hid_set_drvdataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ldv_hid_set_drvdataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 48 more)] === [2022-12-13 14:44:25,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:44:25,014 INFO L85 PathProgramCache]: Analyzing trace with hash 2097724533, now seen corresponding path program 1 times [2022-12-13 14:44:25,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 14:44:25,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1035038661] [2022-12-13 14:44:25,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:44:25,015 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 14:44:25,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 14:44:25,016 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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 14:44:25,018 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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 14:44:25,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:44:25,148 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 16 conjunts are in the unsatisfiable core [2022-12-13 14:44:25,150 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:44:25,159 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 5 [2022-12-13 14:44:25,182 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 14:44:25,188 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 14:44:25,225 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 14:44:25,230 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 14:44:25,242 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-13 14:44:25,242 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 14:44:25,242 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 14:44:25,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1035038661] [2022-12-13 14:44:25,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1035038661] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:44:25,242 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:44:25,242 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 14:44:25,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686988306] [2022-12-13 14:44:25,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:44:25,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 14:44:25,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 14:44:25,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 14:44:25,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 14:44:25,247 INFO L87 Difference]: Start difference. First operand 146 states and 167 transitions. Second operand has 7 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-13 14:44:25,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:44:25,623 INFO L93 Difference]: Finished difference Result 150 states and 171 transitions. [2022-12-13 14:44:25,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 14:44:25,624 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 27 [2022-12-13 14:44:25,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:44:25,624 INFO L225 Difference]: With dead ends: 150 [2022-12-13 14:44:25,624 INFO L226 Difference]: Without dead ends: 150 [2022-12-13 14:44:25,625 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-12-13 14:44:25,625 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 9 mSDsluCounter, 485 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 609 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 14:44:25,625 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 609 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 14:44:25,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2022-12-13 14:44:25,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 148. [2022-12-13 14:44:25,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 101 states have (on average 1.5742574257425743) internal successors, (159), 138 states have internal predecessors, (159), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) [2022-12-13 14:44:25,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 170 transitions. [2022-12-13 14:44:25,629 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 170 transitions. Word has length 27 [2022-12-13 14:44:25,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:44:25,629 INFO L495 AbstractCegarLoop]: Abstraction has 148 states and 170 transitions. [2022-12-13 14:44:25,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-13 14:44:25,629 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 170 transitions. [2022-12-13 14:44:25,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-12-13 14:44:25,630 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:44:25,630 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:44:25,637 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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 14:44:25,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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 14:44:25,831 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ldv_hid_set_drvdataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ldv_hid_set_drvdataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 48 more)] === [2022-12-13 14:44:25,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:44:25,833 INFO L85 PathProgramCache]: Analyzing trace with hash 2097724532, now seen corresponding path program 1 times [2022-12-13 14:44:25,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 14:44:25,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1899850685] [2022-12-13 14:44:25,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:44:25,834 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 14:44:25,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 14:44:25,835 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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 14:44:25,836 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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 14:44:25,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:44:25,903 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-13 14:44:25,904 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:44:25,907 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 14:44:25,917 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 14:44:25,939 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 14:44:25,945 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-12-13 14:44:25,945 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 14:44:25,945 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 14:44:25,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1899850685] [2022-12-13 14:44:25,946 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1899850685] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:44:25,946 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:44:25,946 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 14:44:25,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676425203] [2022-12-13 14:44:25,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:44:25,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 14:44:25,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 14:44:25,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 14:44:25,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 14:44:25,947 INFO L87 Difference]: Start difference. First operand 148 states and 170 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-13 14:44:26,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:44:26,227 INFO L93 Difference]: Finished difference Result 148 states and 169 transitions. [2022-12-13 14:44:26,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 14:44:26,227 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 27 [2022-12-13 14:44:26,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:44:26,228 INFO L225 Difference]: With dead ends: 148 [2022-12-13 14:44:26,228 INFO L226 Difference]: Without dead ends: 148 [2022-12-13 14:44:26,228 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-12-13 14:44:26,229 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 3 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 14:44:26,229 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 461 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 14:44:26,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2022-12-13 14:44:26,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2022-12-13 14:44:26,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 101 states have (on average 1.5643564356435644) internal successors, (158), 138 states have internal predecessors, (158), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) [2022-12-13 14:44:26,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 169 transitions. [2022-12-13 14:44:26,231 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 169 transitions. Word has length 27 [2022-12-13 14:44:26,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:44:26,232 INFO L495 AbstractCegarLoop]: Abstraction has 148 states and 169 transitions. [2022-12-13 14:44:26,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-13 14:44:26,232 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 169 transitions. [2022-12-13 14:44:26,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-12-13 14:44:26,232 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:44:26,232 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:44:26,239 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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 14:44:26,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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 14:44:26,434 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_FREE === [ldv_hid_set_drvdataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ldv_hid_set_drvdataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 48 more)] === [2022-12-13 14:44:26,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:44:26,435 INFO L85 PathProgramCache]: Analyzing trace with hash 290272400, now seen corresponding path program 1 times [2022-12-13 14:44:26,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 14:44:26,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1011364647] [2022-12-13 14:44:26,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:44:26,437 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 14:44:26,437 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 14:44:26,439 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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 14:44:26,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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 14:44:26,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:44:26,512 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 14:44:26,513 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:44:26,706 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-13 14:44:26,706 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 14:44:26,782 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-12-13 14:44:26,782 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 14:44:26,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1011364647] [2022-12-13 14:44:26,782 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1011364647] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 14:44:26,782 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 14:44:26,782 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 9 [2022-12-13 14:44:26,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085488634] [2022-12-13 14:44:26,783 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 14:44:26,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 14:44:26,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 14:44:26,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 14:44:26,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-12-13 14:44:26,783 INFO L87 Difference]: Start difference. First operand 148 states and 169 transitions. Second operand has 10 states, 9 states have (on average 4.111111111111111) internal successors, (37), 8 states have internal predecessors, (37), 5 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) [2022-12-13 14:44:27,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:44:27,057 INFO L93 Difference]: Finished difference Result 147 states and 167 transitions. [2022-12-13 14:44:27,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 14:44:27,058 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.111111111111111) internal successors, (37), 8 states have internal predecessors, (37), 5 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) Word has length 27 [2022-12-13 14:44:27,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:44:27,059 INFO L225 Difference]: With dead ends: 147 [2022-12-13 14:44:27,059 INFO L226 Difference]: Without dead ends: 147 [2022-12-13 14:44:27,060 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 43 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-12-13 14:44:27,060 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 317 mSDsluCounter, 425 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 14:44:27,060 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [319 Valid, 535 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 14:44:27,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2022-12-13 14:44:27,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 147. [2022-12-13 14:44:27,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 101 states have (on average 1.5445544554455446) internal successors, (156), 137 states have internal predecessors, (156), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) [2022-12-13 14:44:27,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 167 transitions. [2022-12-13 14:44:27,064 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 167 transitions. Word has length 27 [2022-12-13 14:44:27,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:44:27,064 INFO L495 AbstractCegarLoop]: Abstraction has 147 states and 167 transitions. [2022-12-13 14:44:27,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.111111111111111) internal successors, (37), 8 states have internal predecessors, (37), 5 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) [2022-12-13 14:44:27,064 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 167 transitions. [2022-12-13 14:44:27,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-12-13 14:44:27,065 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:44:27,065 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:44:27,075 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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 14:44:27,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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 14:44:27,267 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ldv_hid_set_drvdataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ldv_hid_set_drvdataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 48 more)] === [2022-12-13 14:44:27,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:44:27,268 INFO L85 PathProgramCache]: Analyzing trace with hash 290270070, now seen corresponding path program 1 times [2022-12-13 14:44:27,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 14:44:27,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1799457888] [2022-12-13 14:44:27,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:44:27,271 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 14:44:27,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 14:44:27,272 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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 14:44:27,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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 14:44:27,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:44:27,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 13 conjunts are in the unsatisfiable core [2022-12-13 14:44:27,329 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:44:27,346 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 14:44:27,352 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 14:44:27,376 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 14:44:27,379 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 19 treesize of output 7 [2022-12-13 14:44:27,390 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-12-13 14:44:27,390 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 14:44:27,390 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 14:44:27,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1799457888] [2022-12-13 14:44:27,391 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1799457888] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:44:27,391 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:44:27,391 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 14:44:27,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947179996] [2022-12-13 14:44:27,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:44:27,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 14:44:27,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 14:44:27,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 14:44:27,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 14:44:27,392 INFO L87 Difference]: Start difference. First operand 147 states and 167 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-13 14:44:27,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:44:27,545 INFO L93 Difference]: Finished difference Result 150 states and 168 transitions. [2022-12-13 14:44:27,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 14:44:27,546 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 27 [2022-12-13 14:44:27,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:44:27,546 INFO L225 Difference]: With dead ends: 150 [2022-12-13 14:44:27,546 INFO L226 Difference]: Without dead ends: 150 [2022-12-13 14:44:27,546 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-12-13 14:44:27,547 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 12 mSDsluCounter, 509 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 647 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 14:44:27,547 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 647 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 14:44:27,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2022-12-13 14:44:27,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 143. [2022-12-13 14:44:27,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 99 states have (on average 1.5252525252525253) internal successors, (151), 133 states have internal predecessors, (151), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) [2022-12-13 14:44:27,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 162 transitions. [2022-12-13 14:44:27,549 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 162 transitions. Word has length 27 [2022-12-13 14:44:27,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:44:27,549 INFO L495 AbstractCegarLoop]: Abstraction has 143 states and 162 transitions. [2022-12-13 14:44:27,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-13 14:44:27,549 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 162 transitions. [2022-12-13 14:44:27,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-12-13 14:44:27,550 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:44:27,550 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:44:27,557 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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 14:44:27,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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 14:44:27,751 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ldv_hid_set_drvdataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ldv_hid_set_drvdataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 48 more)] === [2022-12-13 14:44:27,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:44:27,752 INFO L85 PathProgramCache]: Analyzing trace with hash 1573614038, now seen corresponding path program 1 times [2022-12-13 14:44:27,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 14:44:27,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1536928569] [2022-12-13 14:44:27,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:44:27,754 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 14:44:27,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 14:44:27,756 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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 14:44:27,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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 14:44:27,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:44:27,890 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 25 conjunts are in the unsatisfiable core [2022-12-13 14:44:27,893 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:44:27,904 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 14:44:27,908 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 14:44:27,987 WARN L859 $PredicateComparison]: unable to prove that (exists ((|ldv_malloc_#res.base| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| |ldv_malloc_#res.base|)) (exists ((v_ArrVal_160 (_ BitVec 32))) (= (store |c_old(#length)| |ldv_malloc_#res.base| v_ArrVal_160) |c_#length|)) (exists ((v_ArrVal_159 (_ BitVec 1))) (= |c_#valid| (store |c_old(#valid)| |ldv_malloc_#res.base| v_ArrVal_159))))) is different from true [2022-12-13 14:44:28,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:44:28,004 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 14:44:28,019 INFO L321 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2022-12-13 14:44:28,020 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 14:44:28,050 WARN L859 $PredicateComparison]: unable to prove that (exists ((|ldv_malloc_#res.base| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| |ldv_malloc_#res.base|)) (exists ((v_ArrVal_161 (_ BitVec 32))) (= (store |c_old(#length)| |ldv_malloc_#res.base| v_ArrVal_161) |c_#length|)))) is different from true [2022-12-13 14:44:28,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:44:28,064 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 14:44:28,073 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-12-13 14:44:28,073 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 14:44:28,111 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 6 not checked. [2022-12-13 14:44:28,111 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 14:44:31,437 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 14:44:31,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1536928569] [2022-12-13 14:44:31,437 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1536928569] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 14:44:31,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [846812862] [2022-12-13 14:44:31,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:44:31,437 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-13 14:44:31,437 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/bin/uautomizer-uyxdKDjOR8/cvc4 [2022-12-13 14:44:31,438 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-13 14:44:31,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process [2022-12-13 14:44:31,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:44:31,594 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 25 conjunts are in the unsatisfiable core [2022-12-13 14:44:31,596 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:44:31,603 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 14:44:31,608 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 14:44:31,643 WARN L859 $PredicateComparison]: unable to prove that (exists ((|ldv_malloc_#res.base| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| |ldv_malloc_#res.base|)) (exists ((v_ArrVal_186 (_ BitVec 32))) (= |c_#length| (store |c_old(#length)| |ldv_malloc_#res.base| v_ArrVal_186))) (exists ((v_ArrVal_185 (_ BitVec 1))) (= |c_#valid| (store |c_old(#valid)| |ldv_malloc_#res.base| v_ArrVal_185))))) is different from true [2022-12-13 14:44:31,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:44:31,659 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 14:44:31,678 INFO L321 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2022-12-13 14:44:31,679 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 14:44:31,703 WARN L859 $PredicateComparison]: unable to prove that (exists ((|ldv_malloc_#res.base| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| |ldv_malloc_#res.base|)) (exists ((v_ArrVal_187 (_ BitVec 32))) (= (store |c_old(#length)| |ldv_malloc_#res.base| v_ArrVal_187) |c_#length|)))) is different from true [2022-12-13 14:44:31,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:44:31,716 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 14:44:31,724 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-12-13 14:44:31,724 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 14:44:31,750 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 6 not checked. [2022-12-13 14:44:31,751 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 14:44:31,934 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [846812862] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 14:44:31,934 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 14:44:31,934 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2022-12-13 14:44:31,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74581143] [2022-12-13 14:44:31,934 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 14:44:31,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 14:44:31,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 14:44:31,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 14:44:31,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=72, Unknown=5, NotChecked=76, Total=182 [2022-12-13 14:44:31,935 INFO L87 Difference]: Start difference. First operand 143 states and 162 transitions. Second operand has 12 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 11 states have internal predecessors, (26), 2 states have call successors, (3), 2 states have call predecessors, (3), 5 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 14:44:32,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:44:32,522 INFO L93 Difference]: Finished difference Result 166 states and 179 transitions. [2022-12-13 14:44:32,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 14:44:32,523 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 11 states have internal predecessors, (26), 2 states have call successors, (3), 2 states have call predecessors, (3), 5 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 29 [2022-12-13 14:44:32,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:44:32,524 INFO L225 Difference]: With dead ends: 166 [2022-12-13 14:44:32,524 INFO L226 Difference]: Without dead ends: 166 [2022-12-13 14:44:32,524 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 61 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=37, Invalid=106, Unknown=5, NotChecked=92, Total=240 [2022-12-13 14:44:32,524 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 156 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 1096 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 685 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-13 14:44:32,524 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 335 Invalid, 1096 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 404 Invalid, 0 Unknown, 685 Unchecked, 0.5s Time] [2022-12-13 14:44:32,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2022-12-13 14:44:32,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 142. [2022-12-13 14:44:32,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 99 states have (on average 1.5151515151515151) internal successors, (150), 132 states have internal predecessors, (150), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) [2022-12-13 14:44:32,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 161 transitions. [2022-12-13 14:44:32,527 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 161 transitions. Word has length 29 [2022-12-13 14:44:32,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:44:32,527 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 161 transitions. [2022-12-13 14:44:32,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 11 states have internal predecessors, (26), 2 states have call successors, (3), 2 states have call predecessors, (3), 5 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 14:44:32,527 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 161 transitions. [2022-12-13 14:44:32,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-13 14:44:32,527 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:44:32,528 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 14:44:32,535 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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 14:44:32,734 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (21)] Ended with exit code 0 [2022-12-13 14:44:32,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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=3,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt [2022-12-13 14:44:32,930 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ldv_hid_set_drvdataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ldv_hid_set_drvdataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 48 more)] === [2022-12-13 14:44:32,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:44:32,931 INFO L85 PathProgramCache]: Analyzing trace with hash 414602102, now seen corresponding path program 1 times [2022-12-13 14:44:32,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 14:44:32,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [256405061] [2022-12-13 14:44:32,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:44:32,932 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 14:44:32,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 14:44:32,935 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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 14:44:32,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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 14:44:33,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:44:33,020 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 14:44:33,021 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:44:33,031 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-12-13 14:44:33,031 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 14:44:33,031 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 14:44:33,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [256405061] [2022-12-13 14:44:33,032 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [256405061] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:44:33,032 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:44:33,032 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 14:44:33,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600319677] [2022-12-13 14:44:33,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:44:33,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 14:44:33,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 14:44:33,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 14:44:33,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 14:44:33,033 INFO L87 Difference]: Start difference. First operand 142 states and 161 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-13 14:44:33,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:44:33,218 INFO L93 Difference]: Finished difference Result 165 states and 178 transitions. [2022-12-13 14:44:33,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 14:44:33,218 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 31 [2022-12-13 14:44:33,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:44:33,219 INFO L225 Difference]: With dead ends: 165 [2022-12-13 14:44:33,219 INFO L226 Difference]: Without dead ends: 165 [2022-12-13 14:44:33,219 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 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 14:44:33,219 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 155 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 14:44:33,220 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 200 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 14:44:33,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2022-12-13 14:44:33,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 141. [2022-12-13 14:44:33,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 99 states have (on average 1.505050505050505) internal successors, (149), 131 states have internal predecessors, (149), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) [2022-12-13 14:44:33,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 160 transitions. [2022-12-13 14:44:33,222 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 160 transitions. Word has length 31 [2022-12-13 14:44:33,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:44:33,222 INFO L495 AbstractCegarLoop]: Abstraction has 141 states and 160 transitions. [2022-12-13 14:44:33,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-13 14:44:33,223 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 160 transitions. [2022-12-13 14:44:33,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-13 14:44:33,223 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:44:33,223 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 14:44:33,234 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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 14:44:33,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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 14:44:33,424 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ldv_hid_set_drvdataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ldv_hid_set_drvdataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 48 more)] === [2022-12-13 14:44:33,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:44:33,424 INFO L85 PathProgramCache]: Analyzing trace with hash 414602103, now seen corresponding path program 1 times [2022-12-13 14:44:33,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 14:44:33,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [100932742] [2022-12-13 14:44:33,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:44:33,425 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 14:44:33,425 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 14:44:33,426 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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 14:44:33,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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 14:44:33,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:44:33,496 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 13 conjunts are in the unsatisfiable core [2022-12-13 14:44:33,497 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:44:33,543 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-12-13 14:44:33,543 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 14:44:33,619 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 8 treesize of output 6 [2022-12-13 14:44:33,781 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-12-13 14:44:33,781 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 14:44:33,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [100932742] [2022-12-13 14:44:33,781 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [100932742] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 14:44:33,781 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 14:44:33,781 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2022-12-13 14:44:33,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312185065] [2022-12-13 14:44:33,781 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 14:44:33,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 14:44:33,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 14:44:33,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 14:44:33,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-12-13 14:44:33,782 INFO L87 Difference]: Start difference. First operand 141 states and 160 transitions. Second operand has 12 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 10 states have internal predecessors, (37), 3 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2022-12-13 14:44:34,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:44:34,267 INFO L93 Difference]: Finished difference Result 147 states and 165 transitions. [2022-12-13 14:44:34,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 14:44:34,268 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 10 states have internal predecessors, (37), 3 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) Word has length 31 [2022-12-13 14:44:34,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:44:34,269 INFO L225 Difference]: With dead ends: 147 [2022-12-13 14:44:34,269 INFO L226 Difference]: Without dead ends: 147 [2022-12-13 14:44:34,269 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-12-13 14:44:34,270 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 374 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 374 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-13 14:44:34,270 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [374 Valid, 387 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-13 14:44:34,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2022-12-13 14:44:34,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 140. [2022-12-13 14:44:34,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 99 states have (on average 1.494949494949495) internal successors, (148), 130 states have internal predecessors, (148), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) [2022-12-13 14:44:34,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 159 transitions. [2022-12-13 14:44:34,274 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 159 transitions. Word has length 31 [2022-12-13 14:44:34,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:44:34,275 INFO L495 AbstractCegarLoop]: Abstraction has 140 states and 159 transitions. [2022-12-13 14:44:34,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 10 states have internal predecessors, (37), 3 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2022-12-13 14:44:34,275 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 159 transitions. [2022-12-13 14:44:34,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-13 14:44:34,275 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:44:34,275 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 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 14:44:34,282 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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)] Forceful destruction successful, exit code 0 [2022-12-13 14:44:34,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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 14:44:34,476 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE === [ldv_hid_set_drvdataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ldv_hid_set_drvdataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 48 more)] === [2022-12-13 14:44:34,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:44:34,476 INFO L85 PathProgramCache]: Analyzing trace with hash -2015159051, now seen corresponding path program 1 times [2022-12-13 14:44:34,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 14:44:34,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1080871092] [2022-12-13 14:44:34,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:44:34,477 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 14:44:34,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 14:44:34,478 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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 14:44:34,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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 14:44:34,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:44:34,536 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 14 conjunts are in the unsatisfiable core [2022-12-13 14:44:34,538 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:44:34,540 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 14:44:34,590 INFO L321 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2022-12-13 14:44:34,590 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 14:44:34,657 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 14 treesize of output 20 [2022-12-13 14:44:34,663 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 14:44:34,663 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 14:44:34,895 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 14:44:34,895 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 14:44:34,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1080871092] [2022-12-13 14:44:34,895 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1080871092] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 14:44:34,895 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 14:44:34,895 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 10 [2022-12-13 14:44:34,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403773498] [2022-12-13 14:44:34,895 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 14:44:34,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 14:44:34,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 14:44:34,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 14:44:34,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-12-13 14:44:34,896 INFO L87 Difference]: Start difference. First operand 140 states and 159 transitions. Second operand has 11 states, 10 states have (on average 2.9) internal successors, (29), 9 states have internal predecessors, (29), 3 states have call successors, (5), 3 states have call predecessors, (5), 5 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2022-12-13 14:44:35,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:44:35,387 INFO L93 Difference]: Finished difference Result 167 states and 180 transitions. [2022-12-13 14:44:35,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 14:44:35,388 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.9) internal successors, (29), 9 states have internal predecessors, (29), 3 states have call successors, (5), 3 states have call predecessors, (5), 5 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 31 [2022-12-13 14:44:35,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:44:35,388 INFO L225 Difference]: With dead ends: 167 [2022-12-13 14:44:35,388 INFO L226 Difference]: Without dead ends: 167 [2022-12-13 14:44:35,389 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 48 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-12-13 14:44:35,389 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 178 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 439 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-13 14:44:35,389 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 439 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-13 14:44:35,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2022-12-13 14:44:35,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 143. [2022-12-13 14:44:35,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 102 states have (on average 1.4803921568627452) internal successors, (151), 133 states have internal predecessors, (151), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) [2022-12-13 14:44:35,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 162 transitions. [2022-12-13 14:44:35,393 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 162 transitions. Word has length 31 [2022-12-13 14:44:35,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:44:35,393 INFO L495 AbstractCegarLoop]: Abstraction has 143 states and 162 transitions. [2022-12-13 14:44:35,393 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.9) internal successors, (29), 9 states have internal predecessors, (29), 3 states have call successors, (5), 3 states have call predecessors, (5), 5 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2022-12-13 14:44:35,393 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 162 transitions. [2022-12-13 14:44:35,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-12-13 14:44:35,393 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:44:35,393 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 14:44:35,400 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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 14:44:35,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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 14:44:35,595 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ldv_hid_set_drvdataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ldv_hid_set_drvdataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 48 more)] === [2022-12-13 14:44:35,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:44:35,596 INFO L85 PathProgramCache]: Analyzing trace with hash -999337641, now seen corresponding path program 1 times [2022-12-13 14:44:35,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 14:44:35,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1090135601] [2022-12-13 14:44:35,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:44:35,598 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 14:44:35,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 14:44:35,600 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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 14:44:35,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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 (25)] Waiting until timeout for monitored process [2022-12-13 14:44:35,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:44:35,725 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 22 conjunts are in the unsatisfiable core [2022-12-13 14:44:35,727 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:44:35,789 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 14:44:35,822 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 14:44:35,841 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-12-13 14:44:35,841 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 14:44:35,914 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-12-13 14:44:35,914 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 14:44:35,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1090135601] [2022-12-13 14:44:35,914 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1090135601] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-13 14:44:35,915 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 14:44:35,915 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 13 [2022-12-13 14:44:35,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808497304] [2022-12-13 14:44:35,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:44:35,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 14:44:35,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 14:44:35,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 14:44:35,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-12-13 14:44:35,916 INFO L87 Difference]: Start difference. First operand 143 states and 162 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-13 14:44:36,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:44:36,415 INFO L93 Difference]: Finished difference Result 203 states and 219 transitions. [2022-12-13 14:44:36,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 14:44:36,415 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 33 [2022-12-13 14:44:36,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:44:36,416 INFO L225 Difference]: With dead ends: 203 [2022-12-13 14:44:36,417 INFO L226 Difference]: Without dead ends: 203 [2022-12-13 14:44:36,417 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=280, Unknown=0, NotChecked=0, Total=342 [2022-12-13 14:44:36,417 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 339 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 339 SdHoareTripleChecker+Valid, 403 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-13 14:44:36,418 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [339 Valid, 403 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-13 14:44:36,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2022-12-13 14:44:36,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 142. [2022-12-13 14:44:36,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 102 states have (on average 1.4705882352941178) internal successors, (150), 132 states have internal predecessors, (150), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) [2022-12-13 14:44:36,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 161 transitions. [2022-12-13 14:44:36,422 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 161 transitions. Word has length 33 [2022-12-13 14:44:36,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:44:36,422 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 161 transitions. [2022-12-13 14:44:36,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-13 14:44:36,422 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 161 transitions. [2022-12-13 14:44:36,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-12-13 14:44:36,422 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:44:36,422 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 14:44:36,429 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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 (25)] Forceful destruction successful, exit code 0 [2022-12-13 14:44:36,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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 14:44:36,623 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ldv_hid_set_drvdataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ldv_hid_set_drvdataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 48 more)] === [2022-12-13 14:44:36,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:44:36,624 INFO L85 PathProgramCache]: Analyzing trace with hash -999337640, now seen corresponding path program 1 times [2022-12-13 14:44:36,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 14:44:36,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1015478594] [2022-12-13 14:44:36,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:44:36,625 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 14:44:36,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 14:44:36,626 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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 14:44:36,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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 14:44:36,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:44:36,735 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 28 conjunts are in the unsatisfiable core [2022-12-13 14:44:36,737 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:44:36,843 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 14:44:36,851 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 14:44:36,904 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 14:44:36,907 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 14:44:36,945 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-12-13 14:44:36,945 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 14:44:37,296 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 8 treesize of output 6 [2022-12-13 14:44:37,508 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-12-13 14:44:37,508 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 14:44:37,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1015478594] [2022-12-13 14:44:37,508 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1015478594] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 14:44:37,508 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 14:44:37,509 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9] total 19 [2022-12-13 14:44:37,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255126399] [2022-12-13 14:44:37,509 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 14:44:37,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-12-13 14:44:37,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 14:44:37,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-12-13 14:44:37,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2022-12-13 14:44:37,510 INFO L87 Difference]: Start difference. First operand 142 states and 161 transitions. Second operand has 20 states, 19 states have (on average 2.1578947368421053) internal successors, (41), 17 states have internal predecessors, (41), 4 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2022-12-13 14:44:39,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:44:39,039 INFO L93 Difference]: Finished difference Result 196 states and 216 transitions. [2022-12-13 14:44:39,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-13 14:44:39,040 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 2.1578947368421053) internal successors, (41), 17 states have internal predecessors, (41), 4 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) Word has length 33 [2022-12-13 14:44:39,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:44:39,040 INFO L225 Difference]: With dead ends: 196 [2022-12-13 14:44:39,041 INFO L226 Difference]: Without dead ends: 196 [2022-12-13 14:44:39,041 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=113, Invalid=487, Unknown=0, NotChecked=0, Total=600 [2022-12-13 14:44:39,041 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 849 mSDsluCounter, 662 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 849 SdHoareTripleChecker+Valid, 746 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-12-13 14:44:39,041 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [849 Valid, 746 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 422 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-12-13 14:44:39,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2022-12-13 14:44:39,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 141. [2022-12-13 14:44:39,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 102 states have (on average 1.4607843137254901) internal successors, (149), 131 states have internal predecessors, (149), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) [2022-12-13 14:44:39,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 160 transitions. [2022-12-13 14:44:39,043 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 160 transitions. Word has length 33 [2022-12-13 14:44:39,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:44:39,044 INFO L495 AbstractCegarLoop]: Abstraction has 141 states and 160 transitions. [2022-12-13 14:44:39,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 2.1578947368421053) internal successors, (41), 17 states have internal predecessors, (41), 4 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2022-12-13 14:44:39,044 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 160 transitions. [2022-12-13 14:44:39,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-12-13 14:44:39,044 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:44:39,044 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-12-13 14:44:39,051 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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)] Forceful destruction successful, exit code 0 [2022-12-13 14:44:39,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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 14:44:39,245 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_LEAK === [ldv_hid_set_drvdataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ldv_hid_set_drvdataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 48 more)] === [2022-12-13 14:44:39,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:44:39,245 INFO L85 PathProgramCache]: Analyzing trace with hash 462409528, now seen corresponding path program 1 times [2022-12-13 14:44:39,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 14:44:39,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [832444835] [2022-12-13 14:44:39,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:44:39,245 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 14:44:39,245 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 14:44:39,246 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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 14:44:39,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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 (27)] Waiting until timeout for monitored process [2022-12-13 14:44:39,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:44:39,311 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 20 conjunts are in the unsatisfiable core [2022-12-13 14:44:39,312 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:44:45,584 WARN L859 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_entry_point_~hdev~0#1.base| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |ULTIMATE.start_entry_point_~hdev~0#1.base|)) (exists ((v_ArrVal_323 (_ BitVec 1)) (|ULTIMATE.start_entry_point_~intf~2#1.base| (_ BitVec 32))) (let ((.cse0 (store |c_ULTIMATE.start_main_old_#valid#1| |ULTIMATE.start_entry_point_~hdev~0#1.base| v_ArrVal_323))) (and (= (store (store .cse0 |ULTIMATE.start_entry_point_~intf~2#1.base| (_ bv0 1)) |ULTIMATE.start_entry_point_~hdev~0#1.base| (_ bv0 1)) |c_#valid|) (= (select .cse0 |ULTIMATE.start_entry_point_~intf~2#1.base|) (_ bv0 1))))))) is different from true [2022-12-13 14:44:45,594 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-12-13 14:44:45,594 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 14:44:47,777 WARN L837 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_entry_point_#t~ret54#1.base_36| (_ BitVec 32))) (or (not (= (select |c_#valid| |v_ULTIMATE.start_entry_point_#t~ret54#1.base_36|) (_ bv0 1))) (= (store (store |c_#valid| |v_ULTIMATE.start_entry_point_#t~ret54#1.base_36| (_ bv0 1)) |c_ULTIMATE.start_entry_point_~hdev~0#1.base| (_ bv0 1)) |c_ULTIMATE.start_main_old_#valid#1|))) is different from false [2022-12-13 14:44:47,778 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 14:44:47,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [832444835] [2022-12-13 14:44:47,779 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [832444835] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 14:44:47,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2104567469] [2022-12-13 14:44:47,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:44:47,779 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-13 14:44:47,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/bin/uautomizer-uyxdKDjOR8/cvc4 [2022-12-13 14:44:47,780 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-13 14:44:47,780 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (28)] Waiting until timeout for monitored process [2022-12-13 14:44:47,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:44:47,894 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 24 conjunts are in the unsatisfiable core [2022-12-13 14:44:47,896 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:44:54,505 WARN L859 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| (_ bv0 32))) (exists ((|ULTIMATE.start_entry_point_~hdev~0#1.base| (_ BitVec 32)) (|ULTIMATE.start_entry_point_~intf~2#1.base| (_ BitVec 32)) (v_ArrVal_347 (_ BitVec 1))) (let ((.cse0 (store |c_ULTIMATE.start_main_old_#valid#1| |ULTIMATE.start_entry_point_~hdev~0#1.base| v_ArrVal_347))) (let ((.cse1 (store .cse0 |ULTIMATE.start_entry_point_~intf~2#1.base| (_ bv0 1)))) (and (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |ULTIMATE.start_entry_point_~hdev~0#1.base|)) (not (= |ULTIMATE.start_entry_point_~hdev~0#1.base| (_ bv0 32))) (= (_ bv0 1) (select .cse0 |ULTIMATE.start_entry_point_~intf~2#1.base|)) (= (_ bv0 1) (bvadd (_ bv1 1) (select .cse1 |ULTIMATE.start_entry_point_~hdev~0#1.base|))) (= |c_#valid| (store .cse1 |ULTIMATE.start_entry_point_~hdev~0#1.base| (_ bv0 1)))))))) is different from true [2022-12-13 14:44:54,521 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-12-13 14:44:54,521 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 14:44:54,771 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 15 treesize of output 13 [2022-12-13 14:44:57,858 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2104567469] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 14:44:57,858 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 14:44:57,858 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 12] total 20 [2022-12-13 14:44:57,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738853186] [2022-12-13 14:44:57,858 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 14:44:57,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-12-13 14:44:57,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 14:44:57,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-12-13 14:44:57,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=635, Unknown=11, NotChecked=162, Total=930 [2022-12-13 14:44:57,860 INFO L87 Difference]: Start difference. First operand 141 states and 160 transitions. Second operand has 21 states, 17 states have (on average 2.411764705882353) internal successors, (41), 17 states have internal predecessors, (41), 6 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-12-13 14:45:01,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:45:01,649 INFO L93 Difference]: Finished difference Result 143 states and 161 transitions. [2022-12-13 14:45:01,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 14:45:01,650 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 17 states have (on average 2.411764705882353) internal successors, (41), 17 states have internal predecessors, (41), 6 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 33 [2022-12-13 14:45:01,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:45:01,651 INFO L225 Difference]: With dead ends: 143 [2022-12-13 14:45:01,651 INFO L226 Difference]: Without dead ends: 129 [2022-12-13 14:45:01,652 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 71 SyntacticMatches, 4 SemanticMatches, 40 ConstructedPredicates, 3 IntricatePredicates, 3 DeprecatedPredicates, 343 ImplicationChecksByTransitivity, 20.3s TimeCoverageRelationStatistics Valid=248, Invalid=1235, Unknown=11, NotChecked=228, Total=1722 [2022-12-13 14:45:01,652 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 125 mSDsluCounter, 591 mSDsCounter, 0 mSdLazyCounter, 649 mSolverCounterSat, 27 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 666 SdHoareTripleChecker+Invalid, 927 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 649 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 250 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-12-13 14:45:01,653 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 666 Invalid, 927 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 649 Invalid, 1 Unknown, 250 Unchecked, 1.2s Time] [2022-12-13 14:45:01,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2022-12-13 14:45:01,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 127. [2022-12-13 14:45:01,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 89 states have (on average 1.5168539325842696) internal successors, (135), 119 states have internal predecessors, (135), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-12-13 14:45:01,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 145 transitions. [2022-12-13 14:45:01,655 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 145 transitions. Word has length 33 [2022-12-13 14:45:01,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:45:01,655 INFO L495 AbstractCegarLoop]: Abstraction has 127 states and 145 transitions. [2022-12-13 14:45:01,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 17 states have (on average 2.411764705882353) internal successors, (41), 17 states have internal predecessors, (41), 6 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-12-13 14:45:01,655 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 145 transitions. [2022-12-13 14:45:01,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-12-13 14:45:01,655 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:45:01,655 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 14:45:01,663 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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 (27)] Forceful destruction successful, exit code 0 [2022-12-13 14:45:01,861 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (28)] Forceful destruction successful, exit code 0 [2022-12-13 14:45:02,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt [2022-12-13 14:45:02,057 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ldv_hid_set_drvdataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ldv_hid_set_drvdataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 48 more)] === [2022-12-13 14:45:02,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:45:02,058 INFO L85 PathProgramCache]: Analyzing trace with hash -914695768, now seen corresponding path program 1 times [2022-12-13 14:45:02,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 14:45:02,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1619044484] [2022-12-13 14:45:02,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:45:02,060 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 14:45:02,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 14:45:02,063 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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 14:45:02,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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 (29)] Waiting until timeout for monitored process [2022-12-13 14:45:02,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:45:02,180 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 51 conjunts are in the unsatisfiable core [2022-12-13 14:45:02,182 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:45:02,187 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 14:45:02,286 INFO L321 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2022-12-13 14:45:02,287 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 14:45:02,445 INFO L321 Elim1Store]: treesize reduction 44, result has 34.3 percent of original size [2022-12-13 14:45:02,446 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 26 treesize of output 43 [2022-12-13 14:45:02,521 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 13 treesize of output 9 [2022-12-13 14:45:02,782 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-12-13 14:45:02,782 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 45 [2022-12-13 14:45:02,852 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 41 treesize of output 32 [2022-12-13 14:45:02,876 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 14:45:03,037 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 14:45:03,208 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 14:45:03,209 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 1 case distinctions, treesize of input 74 treesize of output 33 [2022-12-13 14:45:03,283 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 14:45:03,283 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 14:45:04,013 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 14:45:04,013 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 49 treesize of output 40 [2022-12-13 14:45:04,030 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 14:45:04,031 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 292 treesize of output 288 [2022-12-13 14:45:04,040 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 336 treesize of output 308 [2022-12-13 14:45:04,062 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 112 treesize of output 104 [2022-12-13 14:45:05,225 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 581 treesize of output 517 [2022-12-13 14:45:10,725 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 14:45:10,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1619044484] [2022-12-13 14:45:10,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1619044484] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 14:45:10,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1116852555] [2022-12-13 14:45:10,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:45:10,726 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-13 14:45:10,726 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/bin/uautomizer-uyxdKDjOR8/cvc4 [2022-12-13 14:45:10,727 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-13 14:45:10,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (30)] Waiting until timeout for monitored process [2022-12-13 14:45:10,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:45:10,923 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 53 conjunts are in the unsatisfiable core [2022-12-13 14:45:10,926 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:45:10,932 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 14:45:10,985 INFO L321 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2022-12-13 14:45:10,985 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 14:45:11,075 INFO L321 Elim1Store]: treesize reduction 44, result has 34.3 percent of original size [2022-12-13 14:45:11,076 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 26 treesize of output 43 [2022-12-13 14:45:11,107 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 13 treesize of output 9 [2022-12-13 14:45:11,239 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-12-13 14:45:11,239 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 45 [2022-12-13 14:45:11,281 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 41 treesize of output 32 [2022-12-13 14:45:11,299 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 13 treesize of output 9 [2022-12-13 14:45:11,341 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 14:45:11,395 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 14:45:11,395 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 1 case distinctions, treesize of input 74 treesize of output 33 [2022-12-13 14:45:11,454 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 14:45:11,455 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 14:45:12,162 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv4 32) |c_ULTIMATE.start_entry_point_~intf~2#1.offset|))) (or (forall ((v_ArrVal_415 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (select |c_#valid| (select (select (let ((.cse0 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_entry_point_#t~mem57#1.base| v_ArrVal_415))) (store .cse0 |c_ULTIMATE.start_entry_point_~hdev~0#1.base| (store (select .cse0 |c_ULTIMATE.start_entry_point_~hdev~0#1.base|) (bvadd |c_ULTIMATE.start_entry_point_~hdev~0#1.offset| (_ bv8 32)) |c_ULTIMATE.start_entry_point_~intf~2#1.base|))) |c_ULTIMATE.start_entry_point_~intf~2#1.base|) .cse1)) (_ bv1 1)))) (not (bvule .cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_entry_point_~intf~2#1.offset|))))) is different from false [2022-12-13 14:45:12,441 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 14:45:12,442 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 49 treesize of output 40 [2022-12-13 14:45:12,461 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 14:45:12,461 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 196 treesize of output 194 [2022-12-13 14:45:12,470 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 210 treesize of output 194 [2022-12-13 14:45:12,485 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 112 treesize of output 104 [2022-12-13 14:45:13,340 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 281 treesize of output 265 [2022-12-13 14:45:34,573 WARN L233 SmtUtils]: Spent 12.11s on a formula simplification. DAG size of input: 51 DAG size of output: 22 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 14:45:34,574 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1116852555] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 14:45:34,574 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 14:45:34,574 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 17 [2022-12-13 14:45:34,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552478898] [2022-12-13 14:45:34,574 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 14:45:34,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-13 14:45:34,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 14:45:34,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-13 14:45:34,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=1134, Unknown=11, NotChecked=68, Total=1332 [2022-12-13 14:45:34,575 INFO L87 Difference]: Start difference. First operand 127 states and 145 transitions. Second operand has 18 states, 17 states have (on average 1.588235294117647) internal successors, (27), 15 states have internal predecessors, (27), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-13 14:45:37,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:45:37,606 INFO L93 Difference]: Finished difference Result 187 states and 202 transitions. [2022-12-13 14:45:37,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-13 14:45:37,606 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 1.588235294117647) internal successors, (27), 15 states have internal predecessors, (27), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 34 [2022-12-13 14:45:37,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:45:37,607 INFO L225 Difference]: With dead ends: 187 [2022-12-13 14:45:37,607 INFO L226 Difference]: Without dead ends: 187 [2022-12-13 14:45:37,607 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 58 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 368 ImplicationChecksByTransitivity, 29.5s TimeCoverageRelationStatistics Valid=234, Invalid=1481, Unknown=11, NotChecked=80, Total=1806 [2022-12-13 14:45:37,608 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 382 mSDsluCounter, 720 mSDsCounter, 0 mSdLazyCounter, 712 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 793 SdHoareTripleChecker+Invalid, 725 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 712 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-12-13 14:45:37,608 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [383 Valid, 793 Invalid, 725 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 712 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-12-13 14:45:37,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2022-12-13 14:45:37,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 126. [2022-12-13 14:45:37,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 89 states have (on average 1.5056179775280898) internal successors, (134), 118 states have internal predecessors, (134), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-12-13 14:45:37,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 144 transitions. [2022-12-13 14:45:37,610 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 144 transitions. Word has length 34 [2022-12-13 14:45:37,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:45:37,610 INFO L495 AbstractCegarLoop]: Abstraction has 126 states and 144 transitions. [2022-12-13 14:45:37,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 1.588235294117647) internal successors, (27), 15 states have internal predecessors, (27), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-13 14:45:37,610 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 144 transitions. [2022-12-13 14:45:37,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-12-13 14:45:37,611 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:45:37,611 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 14:45:37,618 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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 (29)] Forceful destruction successful, exit code 0 [2022-12-13 14:45:37,819 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (30)] Ended with exit code 0 [2022-12-13 14:45:38,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt [2022-12-13 14:45:38,013 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ldv_hid_set_drvdataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ldv_hid_set_drvdataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 48 more)] === [2022-12-13 14:45:38,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:45:38,014 INFO L85 PathProgramCache]: Analyzing trace with hash -914695767, now seen corresponding path program 1 times [2022-12-13 14:45:38,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 14:45:38,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1203803044] [2022-12-13 14:45:38,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:45:38,016 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 14:45:38,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 14:45:38,017 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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 14:45:38,018 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74dbaf3-4ce1-4ca4-a6ae-9b01c595b728/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 14:45:38,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:45:38,152 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 60 conjunts are in the unsatisfiable core [2022-12-13 14:45:38,155 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:45:38,160 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 14:45:38,243 INFO L321 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2022-12-13 14:45:38,243 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 14:45:38,325 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 14:45:38,372 INFO L321 Elim1Store]: treesize reduction 12, result has 42.9 percent of original size [2022-12-13 14:45:38,372 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 20 treesize of output 22 [2022-12-13 14:45:38,417 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 14:45:38,428 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 13 treesize of output 9 [2022-12-13 14:45:38,655 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-12-13 14:45:38,656 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 56 treesize of output 53 [2022-12-13 14:45:38,670 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 22 treesize of output 24 [2022-12-13 14:45:38,709 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 14:45:38,715 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 27 treesize of output 26 [2022-12-13 14:45:39,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:45:39,060 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-13 14:45:39,065 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 14:45:39,065 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 3 case distinctions, treesize of input 95 treesize of output 47 [2022-12-13 14:45:39,080 INFO L321 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-12-13 14:45:39,080 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 18 [2022-12-13 14:45:39,123 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 14:45:39,123 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 14:45:40,280 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse3 (bvadd (_ bv8 32) |c_ULTIMATE.start_entry_point_~intf~2#1.offset|)) (.cse2 (bvadd |c_ULTIMATE.start_entry_point_~hdev~0#1.offset| (_ bv8 32))) (.cse4 (bvadd (_ bv4 32) |c_ULTIMATE.start_entry_point_~intf~2#1.offset|))) (and (forall ((v_ArrVal_453 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (let ((.cse1 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_entry_point_#t~mem57#1.base| v_ArrVal_453))) (store .cse1 |c_ULTIMATE.start_entry_point_~hdev~0#1.base| (store (select .cse1 |c_ULTIMATE.start_entry_point_~hdev~0#1.base|) .cse2 .cse3))) |c_ULTIMATE.start_entry_point_~intf~2#1.base|) .cse4))) (bvule (bvadd .cse0 (_ bv7 32)) (bvadd (_ bv8 32) .cse0)))) (forall ((v_ArrVal_453 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_452 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv8 32) (select (select (let ((.cse5 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_entry_point_#t~mem57#1.base| v_ArrVal_453))) (store .cse5 |c_ULTIMATE.start_entry_point_~hdev~0#1.base| (store (select .cse5 |c_ULTIMATE.start_entry_point_~hdev~0#1.base|) .cse2 .cse3))) |c_ULTIMATE.start_entry_point_~intf~2#1.base|) .cse4)) (select |c_#length| (select (select (let ((.cse6 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_entry_point_#t~mem57#1.base| v_ArrVal_452))) (store .cse6 |c_ULTIMATE.start_entry_point_~hdev~0#1.base| (store (select .cse6 |c_ULTIMATE.start_entry_point_~hdev~0#1.base|) .cse2 |c_ULTIMATE.start_entry_point_~intf~2#1.base|))) |c_ULTIMATE.start_entry_point_~intf~2#1.base|) .cse4)))))) is different from false [2022-12-13 14:45:40,368 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse5 (bvadd (_ bv4 32) |c_ULTIMATE.start_entry_point_~intf~2#1.offset|))) (let ((.cse3 (bvadd (_ bv8 32) |c_ULTIMATE.start_entry_point_~intf~2#1.offset|)) (.cse2 (bvadd |c_ULTIMATE.start_entry_point_~hdev~0#1.offset| (_ bv8 32))) (.cse4 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_entry_point_~intf~2#1.base|) .cse5))) (and (forall ((v_ArrVal_453 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (let ((.cse1 (store |c_#memory_$Pointer$.offset| .cse4 v_ArrVal_453))) (store .cse1 |c_ULTIMATE.start_entry_point_~hdev~0#1.base| (store (select .cse1 |c_ULTIMATE.start_entry_point_~hdev~0#1.base|) .cse2 .cse3))) |c_ULTIMATE.start_entry_point_~intf~2#1.base|) .cse5))) (bvule (bvadd .cse0 (_ bv7 32)) (bvadd (_ bv8 32) .cse0)))) (forall ((v_ArrVal_453 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_452 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv8 32) (select (select (let ((.cse6 (store |c_#memory_$Pointer$.offset| .cse4 v_ArrVal_453))) (store .cse6 |c_ULTIMATE.start_entry_point_~hdev~0#1.base| (store (select .cse6 |c_ULTIMATE.start_entry_point_~hdev~0#1.base|) .cse2 .cse3))) |c_ULTIMATE.start_entry_point_~intf~2#1.base|) .cse5)) (select |c_#length| (select (select (let ((.cse7 (store |c_#memory_$Pointer$.base| .cse4 v_ArrVal_452))) (store .cse7 |c_ULTIMATE.start_entry_point_~hdev~0#1.base| (store (select .cse7 |c_ULTIMATE.start_entry_point_~hdev~0#1.base|) .cse2 |c_ULTIMATE.start_entry_point_~intf~2#1.base|))) |c_ULTIMATE.start_entry_point_~intf~2#1.base|) .cse5))))))) is different from false [2022-12-13 14:45:40,506 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 14:45:40,506 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 93 treesize of output 84 [2022-12-13 14:45:40,522 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 14:45:40,523 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 73 treesize of output 64 [2022-12-13 14:45:40,558 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 14:45:40,558 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 584 treesize of output 576 [2022-12-13 14:45:40,599 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 14:45:40,600 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 3072 treesize of output 2982 [2022-12-13 14:45:40,623 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 3458 treesize of output 3266 [2022-12-13 14:45:40,649 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 3646 treesize of output 3446