./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test22_2-2.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_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/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_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test22_2-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/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_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/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 beb004be26a355c223f1a45515f5377c37b18fc46f09e77727f89b964ae9789d --- 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 22:04:49,609 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 22:04:49,611 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 22:04:49,629 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 22:04:49,629 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 22:04:49,630 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 22:04:49,631 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 22:04:49,633 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 22:04:49,634 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 22:04:49,635 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 22:04:49,636 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 22:04:49,637 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 22:04:49,637 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 22:04:49,638 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 22:04:49,639 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 22:04:49,640 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 22:04:49,641 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 22:04:49,642 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 22:04:49,643 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 22:04:49,645 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 22:04:49,646 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 22:04:49,648 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 22:04:49,649 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 22:04:49,649 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 22:04:49,652 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 22:04:49,653 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 22:04:49,653 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 22:04:49,654 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 22:04:49,654 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 22:04:49,655 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 22:04:49,655 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 22:04:49,656 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 22:04:49,657 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 22:04:49,657 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 22:04:49,658 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 22:04:49,658 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 22:04:49,659 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 22:04:49,659 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 22:04:49,659 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 22:04:49,660 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 22:04:49,660 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 22:04:49,661 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-12-13 22:04:49,680 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 22:04:49,680 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 22:04:49,680 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 22:04:49,680 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 22:04:49,681 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 22:04:49,681 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 22:04:49,682 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 22:04:49,682 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 22:04:49,682 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 22:04:49,682 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 22:04:49,682 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 22:04:49,682 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 22:04:49,682 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 22:04:49,683 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 22:04:49,683 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 22:04:49,683 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-13 22:04:49,683 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-13 22:04:49,683 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-13 22:04:49,683 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 22:04:49,683 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 22:04:49,684 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 22:04:49,684 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 22:04:49,684 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 22:04:49,684 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 22:04:49,684 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 22:04:49,684 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 22:04:49,685 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 22:04:49,685 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 22:04:49,685 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 22:04:49,685 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 22:04:49,685 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 22:04:49,685 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 22:04:49,686 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 22:04:49,686 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 22:04:49,686 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_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> beb004be26a355c223f1a45515f5377c37b18fc46f09e77727f89b964ae9789d [2022-12-13 22:04:49,876 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 22:04:49,895 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 22:04:49,898 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 22:04:49,899 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 22:04:49,899 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 22:04:49,901 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/ldv-memsafety/memleaks_test22_2-2.i [2022-12-13 22:04:52,554 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 22:04:52,743 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 22:04:52,744 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/sv-benchmarks/c/ldv-memsafety/memleaks_test22_2-2.i [2022-12-13 22:04:52,755 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/data/e8b831aeb/a79e8d80fd054fc6885591a73227b5af/FLAGfbf249741 [2022-12-13 22:04:52,767 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/data/e8b831aeb/a79e8d80fd054fc6885591a73227b5af [2022-12-13 22:04:52,769 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 22:04:52,770 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 22:04:52,771 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 22:04:52,771 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 22:04:52,774 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 22:04:52,775 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 10:04:52" (1/1) ... [2022-12-13 22:04:52,776 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e3c4ca7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:04:52, skipping insertion in model container [2022-12-13 22:04:52,776 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 10:04:52" (1/1) ... [2022-12-13 22:04:52,781 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 22:04:52,805 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 22:04:53,038 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 22:04:53,052 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 22:04:53,053 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@8813bb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:04:53, skipping insertion in model container [2022-12-13 22:04:53,053 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 22:04:53,053 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2022-12-13 22:04:53,055 INFO L158 Benchmark]: Toolchain (without parser) took 284.26ms. Allocated memory is still 132.1MB. Free memory was 88.3MB in the beginning and 74.8MB in the end (delta: 13.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 22:04:53,055 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 100.7MB. Free memory is still 50.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 22:04:53,056 INFO L158 Benchmark]: CACSL2BoogieTranslator took 282.39ms. Allocated memory is still 132.1MB. Free memory was 87.8MB in the beginning and 74.8MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 22:04:53,057 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 100.7MB. Free memory is still 50.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 282.39ms. Allocated memory is still 132.1MB. Free memory was 87.8MB in the beginning and 74.8MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. 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_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/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_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test22_2-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/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_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/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 beb004be26a355c223f1a45515f5377c37b18fc46f09e77727f89b964ae9789d --- 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 22:04:54,466 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 22:04:54,467 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 22:04:54,481 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 22:04:54,481 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 22:04:54,482 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 22:04:54,483 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 22:04:54,484 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 22:04:54,485 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 22:04:54,486 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 22:04:54,486 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 22:04:54,487 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 22:04:54,487 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 22:04:54,488 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 22:04:54,489 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 22:04:54,490 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 22:04:54,490 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 22:04:54,491 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 22:04:54,492 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 22:04:54,493 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 22:04:54,495 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 22:04:54,495 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 22:04:54,496 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 22:04:54,497 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 22:04:54,499 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 22:04:54,500 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 22:04:54,500 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 22:04:54,501 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 22:04:54,501 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 22:04:54,502 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 22:04:54,502 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 22:04:54,503 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 22:04:54,503 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 22:04:54,504 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 22:04:54,505 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 22:04:54,505 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 22:04:54,506 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 22:04:54,506 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 22:04:54,506 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 22:04:54,507 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 22:04:54,507 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 22:04:54,508 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2022-12-13 22:04:54,525 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 22:04:54,525 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 22:04:54,526 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 22:04:54,526 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 22:04:54,526 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 22:04:54,527 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 22:04:54,527 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 22:04:54,527 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 22:04:54,527 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 22:04:54,528 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 22:04:54,528 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 22:04:54,528 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 22:04:54,528 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 22:04:54,528 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 22:04:54,528 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 22:04:54,528 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-13 22:04:54,529 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-13 22:04:54,529 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-13 22:04:54,529 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 22:04:54,529 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 22:04:54,529 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 22:04:54,529 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 22:04:54,529 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 22:04:54,529 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 22:04:54,530 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 22:04:54,530 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 22:04:54,530 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 22:04:54,530 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 22:04:54,530 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 22:04:54,530 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 22:04:54,530 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 22:04:54,530 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 22:04:54,531 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 22:04:54,531 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 22:04:54,531 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 22:04:54,531 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 22:04:54,531 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 22:04:54,531 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_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> beb004be26a355c223f1a45515f5377c37b18fc46f09e77727f89b964ae9789d [2022-12-13 22:04:54,771 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 22:04:54,789 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 22:04:54,791 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 22:04:54,792 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 22:04:54,792 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 22:04:54,794 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/ldv-memsafety/memleaks_test22_2-2.i [2022-12-13 22:04:57,398 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 22:04:57,580 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 22:04:57,581 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/sv-benchmarks/c/ldv-memsafety/memleaks_test22_2-2.i [2022-12-13 22:04:57,592 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/data/d2f0a5a91/e4d38e10951740d18cef1c4738cb06ac/FLAG9e29e0b00 [2022-12-13 22:04:57,603 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/data/d2f0a5a91/e4d38e10951740d18cef1c4738cb06ac [2022-12-13 22:04:57,606 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 22:04:57,607 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 22:04:57,608 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 22:04:57,608 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 22:04:57,611 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 22:04:57,612 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 10:04:57" (1/1) ... [2022-12-13 22:04:57,613 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@205307eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:04:57, skipping insertion in model container [2022-12-13 22:04:57,613 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 10:04:57" (1/1) ... [2022-12-13 22:04:57,619 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 22:04:57,650 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 22:04:57,893 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 22:04:57,908 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-12-13 22:04:57,914 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 22:04:57,945 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 22:04:57,951 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 22:04:57,986 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 22:04:58,012 INFO L208 MainTranslator]: Completed translation [2022-12-13 22:04:58,012 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:04:58 WrapperNode [2022-12-13 22:04:58,012 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 22:04:58,013 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 22:04:58,013 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 22:04:58,013 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 22:04:58,019 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:04:58" (1/1) ... [2022-12-13 22:04:58,032 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:04:58" (1/1) ... [2022-12-13 22:04:58,050 INFO L138 Inliner]: procedures = 165, calls = 71, calls flagged for inlining = 23, calls inlined = 17, statements flattened = 120 [2022-12-13 22:04:58,050 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 22:04:58,050 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 22:04:58,051 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 22:04:58,051 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 22:04:58,057 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:04:58" (1/1) ... [2022-12-13 22:04:58,058 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:04:58" (1/1) ... [2022-12-13 22:04:58,060 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:04:58" (1/1) ... [2022-12-13 22:04:58,060 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:04:58" (1/1) ... [2022-12-13 22:04:58,067 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:04:58" (1/1) ... [2022-12-13 22:04:58,070 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:04:58" (1/1) ... [2022-12-13 22:04:58,071 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:04:58" (1/1) ... [2022-12-13 22:04:58,072 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:04:58" (1/1) ... [2022-12-13 22:04:58,075 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 22:04:58,075 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 22:04:58,076 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 22:04:58,076 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 22:04:58,076 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:04:58" (1/1) ... [2022-12-13 22:04:58,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 22:04:58,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 22:04:58,098 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 22:04:58,101 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 22:04:58,132 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-12-13 22:04:58,132 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2022-12-13 22:04:58,133 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2022-12-13 22:04:58,133 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-12-13 22:04:58,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-12-13 22:04:58,133 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2022-12-13 22:04:58,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2022-12-13 22:04:58,133 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-13 22:04:58,133 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 22:04:58,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-13 22:04:58,134 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-13 22:04:58,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-12-13 22:04:58,134 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 22:04:58,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-13 22:04:58,134 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 22:04:58,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 22:04:58,249 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 22:04:58,250 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 22:04:58,592 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 22:04:58,598 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 22:04:58,599 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 22:04:58,600 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 10:04:58 BoogieIcfgContainer [2022-12-13 22:04:58,600 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 22:04:58,602 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 22:04:58,602 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 22:04:58,605 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 22:04:58,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 10:04:57" (1/3) ... [2022-12-13 22:04:58,606 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cecbaa1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 10:04:58, skipping insertion in model container [2022-12-13 22:04:58,606 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:04:58" (2/3) ... [2022-12-13 22:04:58,607 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cecbaa1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 10:04:58, skipping insertion in model container [2022-12-13 22:04:58,607 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 10:04:58" (3/3) ... [2022-12-13 22:04:58,608 INFO L112 eAbstractionObserver]: Analyzing ICFG memleaks_test22_2-2.i [2022-12-13 22:04:58,623 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 22:04:58,623 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 25 error locations. [2022-12-13 22:04:58,660 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 22:04:58,665 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;@674c4351, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 22:04:58,665 INFO L358 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2022-12-13 22:04:58,668 INFO L276 IsEmpty]: Start isEmpty. Operand has 90 states, 57 states have (on average 1.5964912280701755) internal successors, (91), 83 states have internal predecessors, (91), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-13 22:04:58,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-13 22:04:58,674 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:04:58,674 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:04:58,675 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-13 22:04:58,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:04:58,679 INFO L85 PathProgramCache]: Analyzing trace with hash -1790059245, now seen corresponding path program 1 times [2022-12-13 22:04:58,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 22:04:58,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1555770556] [2022-12-13 22:04:58,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:04:58,690 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 22:04:58,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 22:04:58,691 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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 22:04:58,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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 22:04:58,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:04:58,759 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 22:04:58,763 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 22:04:58,819 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 22:04:58,864 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 22:04:58,864 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 22:04:58,864 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 22:04:58,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1555770556] [2022-12-13 22:04:58,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1555770556] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:04:58,865 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:04:58,865 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 22:04:58,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023643208] [2022-12-13 22:04:58,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:04:58,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 22:04:58,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 22:04:58,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 22:04:58,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 22:04:58,894 INFO L87 Difference]: Start difference. First operand has 90 states, 57 states have (on average 1.5964912280701755) internal successors, (91), 83 states have internal predecessors, (91), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 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 22:04:59,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:04:59,252 INFO L93 Difference]: Finished difference Result 153 states and 173 transitions. [2022-12-13 22:04:59,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 22:04:59,254 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 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 10 [2022-12-13 22:04:59,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:04:59,261 INFO L225 Difference]: With dead ends: 153 [2022-12-13 22:04:59,261 INFO L226 Difference]: Without dead ends: 151 [2022-12-13 22:04:59,262 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-13 22:04:59,265 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 94 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 373 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 22:04:59,265 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 373 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 22:04:59,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2022-12-13 22:04:59,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 93. [2022-12-13 22:04:59,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 60 states have (on average 1.5666666666666667) internal successors, (94), 85 states have internal predecessors, (94), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) [2022-12-13 22:04:59,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 103 transitions. [2022-12-13 22:04:59,297 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 103 transitions. Word has length 10 [2022-12-13 22:04:59,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:04:59,298 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 103 transitions. [2022-12-13 22:04:59,298 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 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 22:04:59,298 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 103 transitions. [2022-12-13 22:04:59,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-13 22:04:59,298 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:04:59,298 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:04:59,311 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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 22:04:59,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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 22:04:59,500 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-13 22:04:59,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:04:59,501 INFO L85 PathProgramCache]: Analyzing trace with hash -1761430094, now seen corresponding path program 1 times [2022-12-13 22:04:59,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 22:04:59,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1056238600] [2022-12-13 22:04:59,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:04:59,503 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 22:04:59,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 22:04:59,505 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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 22:04:59,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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 22:04:59,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:04:59,658 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 22:04:59,661 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 22:04:59,742 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 22:04:59,742 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 22:04:59,743 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 22:04:59,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1056238600] [2022-12-13 22:04:59,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1056238600] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:04:59,743 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:04:59,743 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 22:04:59,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813432343] [2022-12-13 22:04:59,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:04:59,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 22:04:59,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 22:04:59,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 22:04:59,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 22:04:59,745 INFO L87 Difference]: Start difference. First operand 93 states and 103 transitions. Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 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 22:04:59,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:04:59,771 INFO L93 Difference]: Finished difference Result 110 states and 121 transitions. [2022-12-13 22:04:59,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 22:04:59,771 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 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 10 [2022-12-13 22:04:59,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:04:59,772 INFO L225 Difference]: With dead ends: 110 [2022-12-13 22:04:59,773 INFO L226 Difference]: Without dead ends: 110 [2022-12-13 22:04:59,773 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 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 22:04:59,774 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 17 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 22:04:59,775 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 385 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 22:04:59,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2022-12-13 22:04:59,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 91. [2022-12-13 22:04:59,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 59 states have (on average 1.5423728813559323) internal successors, (91), 83 states have internal predecessors, (91), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) [2022-12-13 22:04:59,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 100 transitions. [2022-12-13 22:04:59,783 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 100 transitions. Word has length 10 [2022-12-13 22:04:59,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:04:59,784 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 100 transitions. [2022-12-13 22:04:59,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 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 22:04:59,784 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 100 transitions. [2022-12-13 22:04:59,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-13 22:04:59,784 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:04:59,784 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:04:59,791 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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 22:04:59,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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 22:04:59,986 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-13 22:04:59,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:04:59,986 INFO L85 PathProgramCache]: Analyzing trace with hash 342738302, now seen corresponding path program 1 times [2022-12-13 22:04:59,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 22:04:59,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1602416825] [2022-12-13 22:04:59,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:04:59,987 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 22:04:59,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 22:05:00,005 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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 22:05:00,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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 22:05:00,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:05:00,123 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 13 conjunts are in the unsatisfiable core [2022-12-13 22:05:00,125 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 22:05:00,140 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 22:05:00,212 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 22:05:00,212 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 22:05:00,212 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 22:05:00,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1602416825] [2022-12-13 22:05:00,212 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1602416825] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:05:00,212 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:05:00,212 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 22:05:00,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15264005] [2022-12-13 22:05:00,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:05:00,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 22:05:00,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 22:05:00,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 22:05:00,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 22:05:00,213 INFO L87 Difference]: Start difference. First operand 91 states and 100 transitions. Second operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 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 22:05:00,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:05:00,558 INFO L93 Difference]: Finished difference Result 128 states and 141 transitions. [2022-12-13 22:05:00,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 22:05:00,559 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 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 22:05:00,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:05:00,560 INFO L225 Difference]: With dead ends: 128 [2022-12-13 22:05:00,560 INFO L226 Difference]: Without dead ends: 128 [2022-12-13 22:05:00,560 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-12-13 22:05:00,561 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 69 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 22:05:00,561 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 465 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 22:05:00,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2022-12-13 22:05:00,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 90. [2022-12-13 22:05:00,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 59 states have (on average 1.5254237288135593) internal successors, (90), 82 states have internal predecessors, (90), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) [2022-12-13 22:05:00,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 99 transitions. [2022-12-13 22:05:00,567 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 99 transitions. Word has length 11 [2022-12-13 22:05:00,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:05:00,567 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 99 transitions. [2022-12-13 22:05:00,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 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 22:05:00,567 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 99 transitions. [2022-12-13 22:05:00,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-13 22:05:00,568 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:05:00,568 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:05:00,575 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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 22:05:00,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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 22:05:00,769 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-13 22:05:00,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:05:00,771 INFO L85 PathProgramCache]: Analyzing trace with hash 2034926041, now seen corresponding path program 1 times [2022-12-13 22:05:00,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 22:05:00,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [394612261] [2022-12-13 22:05:00,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:05:00,773 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 22:05:00,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 22:05:00,776 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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 22:05:00,779 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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 22:05:00,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:05:00,896 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 22:05:00,897 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 22:05:00,914 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 22:05:00,914 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 22:05:00,914 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 22:05:00,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [394612261] [2022-12-13 22:05:00,914 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [394612261] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:05:00,914 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:05:00,914 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 22:05:00,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425026736] [2022-12-13 22:05:00,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:05:00,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 22:05:00,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 22:05:00,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 22:05:00,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 22:05:00,915 INFO L87 Difference]: Start difference. First operand 90 states and 99 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 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 22:05:00,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:05:00,937 INFO L93 Difference]: Finished difference Result 109 states and 119 transitions. [2022-12-13 22:05:00,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 22:05:00,938 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 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 12 [2022-12-13 22:05:00,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:05:00,938 INFO L225 Difference]: With dead ends: 109 [2022-12-13 22:05:00,938 INFO L226 Difference]: Without dead ends: 109 [2022-12-13 22:05:00,938 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 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 22:05:00,940 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 33 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 22:05:00,940 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 409 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 22:05:00,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2022-12-13 22:05:00,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 90. [2022-12-13 22:05:00,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 59 states have (on average 1.5084745762711864) internal successors, (89), 82 states have internal predecessors, (89), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) [2022-12-13 22:05:00,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 98 transitions. [2022-12-13 22:05:00,947 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 98 transitions. Word has length 12 [2022-12-13 22:05:00,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:05:00,947 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 98 transitions. [2022-12-13 22:05:00,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 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 22:05:00,948 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 98 transitions. [2022-12-13 22:05:00,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-13 22:05:00,948 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:05:00,948 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:05:00,970 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-12-13 22:05:01,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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 22:05:01,150 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-13 22:05:01,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:05:01,152 INFO L85 PathProgramCache]: Analyzing trace with hash -517230920, now seen corresponding path program 1 times [2022-12-13 22:05:01,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 22:05:01,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [127384780] [2022-12-13 22:05:01,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:05:01,155 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 22:05:01,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 22:05:01,159 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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 22:05:01,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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 22:05:01,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:05:01,254 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-13 22:05:01,256 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 22:05:01,273 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 22:05:01,273 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 22:05:01,273 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 22:05:01,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [127384780] [2022-12-13 22:05:01,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [127384780] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:05:01,274 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:05:01,274 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 22:05:01,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964215194] [2022-12-13 22:05:01,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:05:01,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 22:05:01,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 22:05:01,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 22:05:01,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 22:05:01,275 INFO L87 Difference]: Start difference. First operand 90 states and 98 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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 22:05:01,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:05:01,298 INFO L93 Difference]: Finished difference Result 106 states and 116 transitions. [2022-12-13 22:05:01,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 22:05:01,298 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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 12 [2022-12-13 22:05:01,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:05:01,299 INFO L225 Difference]: With dead ends: 106 [2022-12-13 22:05:01,299 INFO L226 Difference]: Without dead ends: 106 [2022-12-13 22:05:01,299 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 22:05:01,300 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 15 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 22:05:01,301 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 281 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 22:05:01,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2022-12-13 22:05:01,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 92. [2022-12-13 22:05:01,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 61 states have (on average 1.4918032786885247) internal successors, (91), 84 states have internal predecessors, (91), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) [2022-12-13 22:05:01,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 100 transitions. [2022-12-13 22:05:01,307 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 100 transitions. Word has length 12 [2022-12-13 22:05:01,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:05:01,308 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 100 transitions. [2022-12-13 22:05:01,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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 22:05:01,308 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 100 transitions. [2022-12-13 22:05:01,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-12-13 22:05:01,308 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:05:01,309 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:05:01,322 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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 22:05:01,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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 22:05:01,510 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-13 22:05:01,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:05:01,512 INFO L85 PathProgramCache]: Analyzing trace with hash -1400250303, now seen corresponding path program 1 times [2022-12-13 22:05:01,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 22:05:01,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1217377401] [2022-12-13 22:05:01,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:05:01,515 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 22:05:01,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 22:05:01,518 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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 22:05:01,521 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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 22:05:01,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:05:01,638 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 22:05:01,639 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 22:05:01,656 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 22:05:01,656 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 22:05:01,656 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 22:05:01,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1217377401] [2022-12-13 22:05:01,656 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1217377401] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:05:01,656 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:05:01,656 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 22:05:01,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62993078] [2022-12-13 22:05:01,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:05:01,657 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 22:05:01,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 22:05:01,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 22:05:01,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 22:05:01,657 INFO L87 Difference]: Start difference. First operand 92 states and 100 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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 22:05:01,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:05:01,684 INFO L93 Difference]: Finished difference Result 100 states and 109 transitions. [2022-12-13 22:05:01,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 22:05:01,684 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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 16 [2022-12-13 22:05:01,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:05:01,685 INFO L225 Difference]: With dead ends: 100 [2022-12-13 22:05:01,685 INFO L226 Difference]: Without dead ends: 100 [2022-12-13 22:05:01,685 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 22:05:01,686 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 31 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 22:05:01,686 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 200 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 22:05:01,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2022-12-13 22:05:01,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 93. [2022-12-13 22:05:01,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 62 states have (on average 1.4838709677419355) internal successors, (92), 85 states have internal predecessors, (92), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) [2022-12-13 22:05:01,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 101 transitions. [2022-12-13 22:05:01,690 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 101 transitions. Word has length 16 [2022-12-13 22:05:01,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:05:01,690 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 101 transitions. [2022-12-13 22:05:01,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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 22:05:01,690 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 101 transitions. [2022-12-13 22:05:01,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-13 22:05:01,690 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:05:01,690 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:05:01,701 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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 22:05:01,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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 22:05:01,892 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_kobject_putErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-13 22:05:01,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:05:01,894 INFO L85 PathProgramCache]: Analyzing trace with hash 1200886583, now seen corresponding path program 1 times [2022-12-13 22:05:01,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 22:05:01,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [120600722] [2022-12-13 22:05:01,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:05:01,895 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 22:05:01,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 22:05:01,899 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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 22:05:01,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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 22:05:02,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:05:02,012 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-13 22:05:02,013 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 22:05:02,066 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 22:05:02,066 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 22:05:02,066 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 22:05:02,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [120600722] [2022-12-13 22:05:02,066 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [120600722] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:05:02,066 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:05:02,066 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 22:05:02,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162406485] [2022-12-13 22:05:02,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:05:02,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 22:05:02,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 22:05:02,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 22:05:02,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 22:05:02,068 INFO L87 Difference]: Start difference. First operand 93 states and 101 transitions. Second operand has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 5 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 22:05:02,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:05:02,120 INFO L93 Difference]: Finished difference Result 106 states and 115 transitions. [2022-12-13 22:05:02,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 22:05:02,121 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 5 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2022-12-13 22:05:02,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:05:02,122 INFO L225 Difference]: With dead ends: 106 [2022-12-13 22:05:02,122 INFO L226 Difference]: Without dead ends: 106 [2022-12-13 22:05:02,123 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 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 22:05:02,124 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 14 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 22:05:02,124 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 448 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 22:05:02,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2022-12-13 22:05:02,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 101. [2022-12-13 22:05:02,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 67 states have (on average 1.4477611940298507) internal successors, (97), 91 states have internal predecessors, (97), 6 states have call successors, (6), 4 states have call predecessors, (6), 5 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2022-12-13 22:05:02,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 110 transitions. [2022-12-13 22:05:02,132 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 110 transitions. Word has length 17 [2022-12-13 22:05:02,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:05:02,132 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 110 transitions. [2022-12-13 22:05:02,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 5 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 22:05:02,132 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 110 transitions. [2022-12-13 22:05:02,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-13 22:05:02,133 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:05:02,133 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:05:02,144 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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 22:05:02,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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 22:05:02,335 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-13 22:05:02,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:05:02,337 INFO L85 PathProgramCache]: Analyzing trace with hash -517345560, now seen corresponding path program 1 times [2022-12-13 22:05:02,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 22:05:02,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1069784995] [2022-12-13 22:05:02,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:05:02,339 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 22:05:02,339 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 22:05:02,342 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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 22:05:02,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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 22:05:02,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:05:02,468 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 22:05:02,469 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 22:05:02,495 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:05:02,495 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 22:05:02,545 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:05:02,545 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 22:05:02,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1069784995] [2022-12-13 22:05:02,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1069784995] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 22:05:02,545 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 22:05:02,545 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-12-13 22:05:02,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340388407] [2022-12-13 22:05:02,546 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 22:05:02,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 22:05:02,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 22:05:02,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 22:05:02,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-13 22:05:02,547 INFO L87 Difference]: Start difference. First operand 101 states and 110 transitions. Second operand has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 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 22:05:02,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:05:02,620 INFO L93 Difference]: Finished difference Result 107 states and 115 transitions. [2022-12-13 22:05:02,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 22:05:02,621 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 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 17 [2022-12-13 22:05:02,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:05:02,621 INFO L225 Difference]: With dead ends: 107 [2022-12-13 22:05:02,621 INFO L226 Difference]: Without dead ends: 107 [2022-12-13 22:05:02,621 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-12-13 22:05:02,622 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 66 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 22:05:02,622 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 465 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 22:05:02,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2022-12-13 22:05:02,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 104. [2022-12-13 22:05:02,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 70 states have (on average 1.4285714285714286) internal successors, (100), 94 states have internal predecessors, (100), 6 states have call successors, (6), 4 states have call predecessors, (6), 5 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2022-12-13 22:05:02,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 113 transitions. [2022-12-13 22:05:02,625 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 113 transitions. Word has length 17 [2022-12-13 22:05:02,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:05:02,626 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 113 transitions. [2022-12-13 22:05:02,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 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 22:05:02,626 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 113 transitions. [2022-12-13 22:05:02,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-12-13 22:05:02,626 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:05:02,626 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:05:02,637 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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 22:05:02,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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 22:05:02,828 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-13 22:05:02,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:05:02,829 INFO L85 PathProgramCache]: Analyzing trace with hash -613690879, now seen corresponding path program 2 times [2022-12-13 22:05:02,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 22:05:02,831 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [21803416] [2022-12-13 22:05:02,831 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 22:05:02,831 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 22:05:02,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 22:05:02,835 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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 22:05:02,837 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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 22:05:02,929 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-13 22:05:02,929 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 22:05:02,931 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-13 22:05:02,933 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 22:05:02,937 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 22:05:03,003 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-13 22:05:03,003 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 22:05:03,003 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 22:05:03,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [21803416] [2022-12-13 22:05:03,004 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [21803416] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:05:03,004 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:05:03,004 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 22:05:03,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907638143] [2022-12-13 22:05:03,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:05:03,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 22:05:03,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 22:05:03,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 22:05:03,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-13 22:05:03,005 INFO L87 Difference]: Start difference. First operand 104 states and 113 transitions. Second operand has 8 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 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 22:05:03,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:05:03,331 INFO L93 Difference]: Finished difference Result 136 states and 149 transitions. [2022-12-13 22:05:03,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 22:05:03,331 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 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 20 [2022-12-13 22:05:03,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:05:03,332 INFO L225 Difference]: With dead ends: 136 [2022-12-13 22:05:03,332 INFO L226 Difference]: Without dead ends: 136 [2022-12-13 22:05:03,332 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-12-13 22:05:03,333 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 91 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 22:05:03,333 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 511 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 22:05:03,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2022-12-13 22:05:03,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 103. [2022-12-13 22:05:03,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 70 states have (on average 1.4142857142857144) internal successors, (99), 93 states have internal predecessors, (99), 6 states have call successors, (6), 4 states have call predecessors, (6), 5 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2022-12-13 22:05:03,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 112 transitions. [2022-12-13 22:05:03,336 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 112 transitions. Word has length 20 [2022-12-13 22:05:03,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:05:03,336 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 112 transitions. [2022-12-13 22:05:03,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 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 22:05:03,337 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 112 transitions. [2022-12-13 22:05:03,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-12-13 22:05:03,337 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:05:03,337 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:05:03,344 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-12-13 22:05:03,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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 22:05:03,538 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-13 22:05:03,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:05:03,538 INFO L85 PathProgramCache]: Analyzing trace with hash -613690878, now seen corresponding path program 1 times [2022-12-13 22:05:03,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 22:05:03,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [964754910] [2022-12-13 22:05:03,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:05:03,539 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 22:05:03,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 22:05:03,539 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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 22:05:03,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-12-13 22:05:03,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:05:03,596 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 22:05:03,598 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 22:05:03,650 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:05:03,650 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 22:05:03,808 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:05:03,808 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 22:05:03,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [964754910] [2022-12-13 22:05:03,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [964754910] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 22:05:03,808 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 22:05:03,809 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2022-12-13 22:05:03,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799843788] [2022-12-13 22:05:03,809 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 22:05:03,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-13 22:05:03,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 22:05:03,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-13 22:05:03,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2022-12-13 22:05:03,810 INFO L87 Difference]: Start difference. First operand 103 states and 112 transitions. Second operand has 14 states, 14 states have (on average 1.8571428571428572) internal successors, (26), 14 states have internal predecessors, (26), 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 22:05:04,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:05:04,061 INFO L93 Difference]: Finished difference Result 112 states and 120 transitions. [2022-12-13 22:05:04,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-13 22:05:04,061 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.8571428571428572) internal successors, (26), 14 states have internal predecessors, (26), 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 20 [2022-12-13 22:05:04,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:05:04,062 INFO L225 Difference]: With dead ends: 112 [2022-12-13 22:05:04,062 INFO L226 Difference]: Without dead ends: 112 [2022-12-13 22:05:04,062 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=131, Invalid=211, Unknown=0, NotChecked=0, Total=342 [2022-12-13 22:05:04,062 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 35 mSDsluCounter, 817 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 918 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 22:05:04,063 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 918 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 22:05:04,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2022-12-13 22:05:04,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 109. [2022-12-13 22:05:04,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 76 states have (on average 1.381578947368421) internal successors, (105), 99 states have internal predecessors, (105), 6 states have call successors, (6), 4 states have call predecessors, (6), 5 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2022-12-13 22:05:04,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 118 transitions. [2022-12-13 22:05:04,065 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 118 transitions. Word has length 20 [2022-12-13 22:05:04,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:05:04,066 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 118 transitions. [2022-12-13 22:05:04,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.8571428571428572) internal successors, (26), 14 states have internal predecessors, (26), 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 22:05:04,066 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 118 transitions. [2022-12-13 22:05:04,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-12-13 22:05:04,066 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:05:04,066 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:05:04,076 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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)] Ended with exit code 0 [2022-12-13 22:05:04,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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 22:05:04,267 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-13 22:05:04,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:05:04,268 INFO L85 PathProgramCache]: Analyzing trace with hash -694582635, now seen corresponding path program 1 times [2022-12-13 22:05:04,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 22:05:04,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1078698542] [2022-12-13 22:05:04,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:05:04,268 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 22:05:04,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 22:05:04,269 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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 22:05:04,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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 22:05:04,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:05:04,325 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-13 22:05:04,326 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 22:05:04,361 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-13 22:05:04,361 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 22:05:04,361 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 22:05:04,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1078698542] [2022-12-13 22:05:04,361 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1078698542] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:05:04,361 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:05:04,361 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 22:05:04,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740718698] [2022-12-13 22:05:04,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:05:04,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 22:05:04,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 22:05:04,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 22:05:04,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 22:05:04,362 INFO L87 Difference]: Start difference. First operand 109 states and 118 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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 22:05:04,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:05:04,491 INFO L93 Difference]: Finished difference Result 115 states and 124 transitions. [2022-12-13 22:05:04,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 22:05:04,492 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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 25 [2022-12-13 22:05:04,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:05:04,493 INFO L225 Difference]: With dead ends: 115 [2022-12-13 22:05:04,493 INFO L226 Difference]: Without dead ends: 99 [2022-12-13 22:05:04,493 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 22 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 22:05:04,493 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 31 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 22:05:04,493 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 178 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 22:05:04,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2022-12-13 22:05:04,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 95. [2022-12-13 22:05:04,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 66 states have (on average 1.4242424242424243) internal successors, (94), 88 states have internal predecessors, (94), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-13 22:05:04,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 102 transitions. [2022-12-13 22:05:04,496 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 102 transitions. Word has length 25 [2022-12-13 22:05:04,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:05:04,497 INFO L495 AbstractCegarLoop]: Abstraction has 95 states and 102 transitions. [2022-12-13 22:05:04,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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 22:05:04,497 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 102 transitions. [2022-12-13 22:05:04,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-12-13 22:05:04,497 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:05:04,497 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:05:04,507 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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 22:05:04,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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 22:05:04,699 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-13 22:05:04,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:05:04,700 INFO L85 PathProgramCache]: Analyzing trace with hash 1800263842, now seen corresponding path program 2 times [2022-12-13 22:05:04,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 22:05:04,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1236854594] [2022-12-13 22:05:04,701 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 22:05:04,701 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 22:05:04,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 22:05:04,702 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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 22:05:04,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-12-13 22:05:04,788 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-13 22:05:04,788 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 22:05:04,790 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 23 conjunts are in the unsatisfiable core [2022-12-13 22:05:04,792 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 22:05:04,801 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 22:05:04,963 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 22:05:04,963 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 22:05:04,963 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 22:05:04,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1236854594] [2022-12-13 22:05:04,963 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1236854594] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:05:04,963 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:05:04,963 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 22:05:04,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050551008] [2022-12-13 22:05:04,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:05:04,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 22:05:04,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 22:05:04,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 22:05:04,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-13 22:05:04,965 INFO L87 Difference]: Start difference. First operand 95 states and 102 transitions. Second operand has 9 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 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 22:05:05,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:05:05,491 INFO L93 Difference]: Finished difference Result 135 states and 146 transitions. [2022-12-13 22:05:05,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 22:05:05,492 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 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 26 [2022-12-13 22:05:05,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:05:05,493 INFO L225 Difference]: With dead ends: 135 [2022-12-13 22:05:05,493 INFO L226 Difference]: Without dead ends: 135 [2022-12-13 22:05:05,493 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-12-13 22:05:05,493 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 97 mSDsluCounter, 480 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 590 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-13 22:05:05,493 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 590 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-13 22:05:05,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2022-12-13 22:05:05,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 94. [2022-12-13 22:05:05,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 66 states have (on average 1.4090909090909092) internal successors, (93), 87 states have internal predecessors, (93), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-13 22:05:05,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 101 transitions. [2022-12-13 22:05:05,496 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 101 transitions. Word has length 26 [2022-12-13 22:05:05,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:05:05,496 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 101 transitions. [2022-12-13 22:05:05,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 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 22:05:05,497 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 101 transitions. [2022-12-13 22:05:05,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-12-13 22:05:05,497 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:05:05,497 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:05:05,509 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2022-12-13 22:05:05,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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 22:05:05,698 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-13 22:05:05,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:05:05,699 INFO L85 PathProgramCache]: Analyzing trace with hash -819776159, now seen corresponding path program 1 times [2022-12-13 22:05:05,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 22:05:05,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [597940053] [2022-12-13 22:05:05,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:05:05,700 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 22:05:05,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 22:05:05,702 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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 22:05:05,705 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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 22:05:05,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:05:05,877 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 13 conjunts are in the unsatisfiable core [2022-12-13 22:05:05,878 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 22:05:06,035 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:05:06,035 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 22:05:06,493 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:05:06,493 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 22:05:06,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [597940053] [2022-12-13 22:05:06,494 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [597940053] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 22:05:06,494 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 22:05:06,494 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2022-12-13 22:05:06,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305107377] [2022-12-13 22:05:06,494 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 22:05:06,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-13 22:05:06,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 22:05:06,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-13 22:05:06,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=178, Invalid=472, Unknown=0, NotChecked=0, Total=650 [2022-12-13 22:05:06,496 INFO L87 Difference]: Start difference. First operand 94 states and 101 transitions. Second operand has 26 states, 26 states have (on average 1.5384615384615385) internal successors, (40), 26 states have internal predecessors, (40), 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 22:05:06,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:05:06,930 INFO L93 Difference]: Finished difference Result 100 states and 107 transitions. [2022-12-13 22:05:06,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-13 22:05:06,931 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 1.5384615384615385) internal successors, (40), 26 states have internal predecessors, (40), 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 28 [2022-12-13 22:05:06,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:05:06,932 INFO L225 Difference]: With dead ends: 100 [2022-12-13 22:05:06,932 INFO L226 Difference]: Without dead ends: 100 [2022-12-13 22:05:06,932 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 193 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=278, Invalid=652, Unknown=0, NotChecked=0, Total=930 [2022-12-13 22:05:06,933 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 34 mSDsluCounter, 1038 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 1126 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 22:05:06,933 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 1126 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 22:05:06,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2022-12-13 22:05:06,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2022-12-13 22:05:06,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 72 states have (on average 1.375) internal successors, (99), 93 states have internal predecessors, (99), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-13 22:05:06,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 107 transitions. [2022-12-13 22:05:06,935 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 107 transitions. Word has length 28 [2022-12-13 22:05:06,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:05:06,935 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 107 transitions. [2022-12-13 22:05:06,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 1.5384615384615385) internal successors, (40), 26 states have internal predecessors, (40), 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 22:05:06,935 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 107 transitions. [2022-12-13 22:05:06,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-12-13 22:05:06,936 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:05:06,936 INFO L195 NwaCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:05:06,944 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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 22:05:07,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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 22:05:07,138 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-13 22:05:07,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:05:07,139 INFO L85 PathProgramCache]: Analyzing trace with hash -1570464767, now seen corresponding path program 2 times [2022-12-13 22:05:07,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 22:05:07,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1681589220] [2022-12-13 22:05:07,141 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 22:05:07,141 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 22:05:07,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 22:05:07,144 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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 22:05:07,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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 22:05:07,290 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-13 22:05:07,290 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 22:05:07,292 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 22:05:07,293 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 22:05:07,335 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2022-12-13 22:05:07,335 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 22:05:07,336 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 22:05:07,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1681589220] [2022-12-13 22:05:07,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1681589220] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:05:07,336 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:05:07,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 22:05:07,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506621750] [2022-12-13 22:05:07,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:05:07,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 22:05:07,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 22:05:07,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 22:05:07,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 22:05:07,337 INFO L87 Difference]: Start difference. First operand 100 states and 107 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, (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 22:05:07,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:05:07,373 INFO L93 Difference]: Finished difference Result 100 states and 106 transitions. [2022-12-13 22:05:07,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 22:05:07,374 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, (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 34 [2022-12-13 22:05:07,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:05:07,374 INFO L225 Difference]: With dead ends: 100 [2022-12-13 22:05:07,374 INFO L226 Difference]: Without dead ends: 100 [2022-12-13 22:05:07,374 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-13 22:05:07,375 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 49 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 22:05:07,375 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 365 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 22:05:07,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2022-12-13 22:05:07,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2022-12-13 22:05:07,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 72 states have (on average 1.3611111111111112) internal successors, (98), 93 states have internal predecessors, (98), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-13 22:05:07,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 106 transitions. [2022-12-13 22:05:07,377 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 106 transitions. Word has length 34 [2022-12-13 22:05:07,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:05:07,377 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 106 transitions. [2022-12-13 22:05:07,377 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, (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 22:05:07,378 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 106 transitions. [2022-12-13 22:05:07,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-12-13 22:05:07,378 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:05:07,378 INFO L195 NwaCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:05:07,389 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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 22:05:07,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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 22:05:07,580 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-13 22:05:07,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:05:07,581 INFO L85 PathProgramCache]: Analyzing trace with hash -234355352, now seen corresponding path program 1 times [2022-12-13 22:05:07,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 22:05:07,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1152189315] [2022-12-13 22:05:07,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:05:07,583 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 22:05:07,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 22:05:07,586 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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 22:05:07,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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 22:05:07,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:05:07,737 INFO L263 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-13 22:05:07,739 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 22:05:07,742 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 22:05:07,839 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2022-12-13 22:05:07,839 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 22:05:07,839 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 22:05:07,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1152189315] [2022-12-13 22:05:07,840 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1152189315] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:05:07,840 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:05:07,840 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 22:05:07,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673378690] [2022-12-13 22:05:07,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:05:07,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 22:05:07,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 22:05:07,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 22:05:07,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-13 22:05:07,841 INFO L87 Difference]: Start difference. First operand 100 states and 106 transitions. Second operand has 9 states, 8 states have (on average 2.25) internal successors, (18), 7 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 22:05:08,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:05:08,161 INFO L93 Difference]: Finished difference Result 98 states and 104 transitions. [2022-12-13 22:05:08,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 22:05:08,161 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.25) internal successors, (18), 7 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 36 [2022-12-13 22:05:08,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:05:08,162 INFO L225 Difference]: With dead ends: 98 [2022-12-13 22:05:08,162 INFO L226 Difference]: Without dead ends: 98 [2022-12-13 22:05:08,163 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-12-13 22:05:08,163 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 74 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 22:05:08,164 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 378 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 22:05:08,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2022-12-13 22:05:08,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2022-12-13 22:05:08,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 72 states have (on average 1.3333333333333333) internal successors, (96), 91 states have internal predecessors, (96), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-13 22:05:08,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 104 transitions. [2022-12-13 22:05:08,166 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 104 transitions. Word has length 36 [2022-12-13 22:05:08,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:05:08,166 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 104 transitions. [2022-12-13 22:05:08,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.25) internal successors, (18), 7 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 22:05:08,166 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 104 transitions. [2022-12-13 22:05:08,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-12-13 22:05:08,167 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:05:08,167 INFO L195 NwaCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:05:08,179 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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 22:05:08,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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 22:05:08,368 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-13 22:05:08,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:05:08,369 INFO L85 PathProgramCache]: Analyzing trace with hash -234355351, now seen corresponding path program 1 times [2022-12-13 22:05:08,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 22:05:08,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [242238149] [2022-12-13 22:05:08,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:05:08,371 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 22:05:08,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 22:05:08,374 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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 22:05:08,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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 22:05:08,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:05:08,613 INFO L263 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 23 conjunts are in the unsatisfiable core [2022-12-13 22:05:08,615 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 22:05:08,624 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 22:05:08,806 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2022-12-13 22:05:08,806 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 22:05:08,806 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 22:05:08,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [242238149] [2022-12-13 22:05:08,806 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [242238149] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:05:08,806 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:05:08,806 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 22:05:08,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237154295] [2022-12-13 22:05:08,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:05:08,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 22:05:08,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 22:05:08,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 22:05:08,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-12-13 22:05:08,807 INFO L87 Difference]: Start difference. First operand 98 states and 104 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, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 22:05:09,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:05:09,180 INFO L93 Difference]: Finished difference Result 96 states and 102 transitions. [2022-12-13 22:05:09,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 22:05:09,181 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, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 36 [2022-12-13 22:05:09,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:05:09,181 INFO L225 Difference]: With dead ends: 96 [2022-12-13 22:05:09,181 INFO L226 Difference]: Without dead ends: 96 [2022-12-13 22:05:09,181 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-12-13 22:05:09,182 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 78 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 22:05:09,182 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 460 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 22:05:09,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2022-12-13 22:05:09,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2022-12-13 22:05:09,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 72 states have (on average 1.3055555555555556) internal successors, (94), 89 states have internal predecessors, (94), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-13 22:05:09,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 102 transitions. [2022-12-13 22:05:09,185 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 102 transitions. Word has length 36 [2022-12-13 22:05:09,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:05:09,186 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 102 transitions. [2022-12-13 22:05:09,186 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, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 22:05:09,186 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 102 transitions. [2022-12-13 22:05:09,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-12-13 22:05:09,186 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:05:09,186 INFO L195 NwaCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:05:09,195 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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 22:05:09,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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 22:05:09,388 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-13 22:05:09,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:05:09,389 INFO L85 PathProgramCache]: Analyzing trace with hash -285061459, now seen corresponding path program 1 times [2022-12-13 22:05:09,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 22:05:09,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [781128353] [2022-12-13 22:05:09,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:05:09,391 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 22:05:09,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 22:05:09,393 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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 22:05:09,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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 22:05:09,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:05:09,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-13 22:05:09,630 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 22:05:09,664 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2022-12-13 22:05:09,664 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 22:05:09,664 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 22:05:09,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [781128353] [2022-12-13 22:05:09,664 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [781128353] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:05:09,664 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:05:09,664 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 22:05:09,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771471040] [2022-12-13 22:05:09,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:05:09,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 22:05:09,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 22:05:09,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 22:05:09,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 22:05:09,665 INFO L87 Difference]: Start difference. First operand 96 states and 102 transitions. Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 6 states have internal predecessors, (19), 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 22:05:09,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:05:09,701 INFO L93 Difference]: Finished difference Result 96 states and 101 transitions. [2022-12-13 22:05:09,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 22:05:09,702 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 6 states have internal predecessors, (19), 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 36 [2022-12-13 22:05:09,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:05:09,702 INFO L225 Difference]: With dead ends: 96 [2022-12-13 22:05:09,702 INFO L226 Difference]: Without dead ends: 96 [2022-12-13 22:05:09,702 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-12-13 22:05:09,703 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 69 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 22:05:09,703 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 390 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 22:05:09,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2022-12-13 22:05:09,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2022-12-13 22:05:09,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 72 states have (on average 1.2916666666666667) internal successors, (93), 88 states have internal predecessors, (93), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-13 22:05:09,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 101 transitions. [2022-12-13 22:05:09,705 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 101 transitions. Word has length 36 [2022-12-13 22:05:09,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:05:09,705 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 101 transitions. [2022-12-13 22:05:09,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 6 states have internal predecessors, (19), 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 22:05:09,705 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 101 transitions. [2022-12-13 22:05:09,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-12-13 22:05:09,706 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:05:09,706 INFO L195 NwaCegarLoop]: trace histogram [16, 1, 1, 1, 1, 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 22:05:09,718 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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 22:05:09,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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 22:05:09,906 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-13 22:05:09,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:05:09,907 INFO L85 PathProgramCache]: Analyzing trace with hash 1910239882, now seen corresponding path program 1 times [2022-12-13 22:05:09,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 22:05:09,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [389655538] [2022-12-13 22:05:09,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:05:09,907 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 22:05:09,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 22:05:09,908 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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 22:05:09,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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 22:05:10,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:05:10,061 INFO L263 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 14 conjunts are in the unsatisfiable core [2022-12-13 22:05:10,064 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 22:05:10,067 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 22:05:10,170 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2022-12-13 22:05:10,171 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 22:05:10,171 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 22:05:10,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [389655538] [2022-12-13 22:05:10,171 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [389655538] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:05:10,171 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:05:10,171 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 22:05:10,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582749830] [2022-12-13 22:05:10,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:05:10,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 22:05:10,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 22:05:10,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 22:05:10,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-12-13 22:05:10,172 INFO L87 Difference]: Start difference. First operand 96 states and 101 transitions. Second operand has 9 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 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 22:05:10,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:05:10,516 INFO L93 Difference]: Finished difference Result 110 states and 120 transitions. [2022-12-13 22:05:10,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 22:05:10,517 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 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 44 [2022-12-13 22:05:10,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:05:10,517 INFO L225 Difference]: With dead ends: 110 [2022-12-13 22:05:10,518 INFO L226 Difference]: Without dead ends: 110 [2022-12-13 22:05:10,518 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 35 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2022-12-13 22:05:10,518 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 85 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 22:05:10,519 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 335 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 22:05:10,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2022-12-13 22:05:10,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 94. [2022-12-13 22:05:10,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 72 states have (on average 1.2638888888888888) internal successors, (91), 86 states have internal predecessors, (91), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-13 22:05:10,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 99 transitions. [2022-12-13 22:05:10,522 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 99 transitions. Word has length 44 [2022-12-13 22:05:10,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:05:10,523 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 99 transitions. [2022-12-13 22:05:10,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 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 22:05:10,523 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 99 transitions. [2022-12-13 22:05:10,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-12-13 22:05:10,523 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:05:10,523 INFO L195 NwaCegarLoop]: trace histogram [16, 1, 1, 1, 1, 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 22:05:10,532 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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 22:05:10,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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 22:05:10,725 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-13 22:05:10,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:05:10,725 INFO L85 PathProgramCache]: Analyzing trace with hash 1910239883, now seen corresponding path program 1 times [2022-12-13 22:05:10,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 22:05:10,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1220675770] [2022-12-13 22:05:10,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:05:10,726 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 22:05:10,727 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 22:05:10,728 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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 22:05:10,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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 22:05:10,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:05:10,913 INFO L263 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 27 conjunts are in the unsatisfiable core [2022-12-13 22:05:10,914 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 22:05:10,923 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 22:05:11,105 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2022-12-13 22:05:11,105 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 22:05:11,105 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 22:05:11,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1220675770] [2022-12-13 22:05:11,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1220675770] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:05:11,105 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:05:11,105 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 22:05:11,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024829936] [2022-12-13 22:05:11,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:05:11,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 22:05:11,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 22:05:11,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 22:05:11,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-12-13 22:05:11,107 INFO L87 Difference]: Start difference. First operand 94 states and 99 transitions. Second operand has 10 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 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 22:05:11,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:05:11,515 INFO L93 Difference]: Finished difference Result 99 states and 105 transitions. [2022-12-13 22:05:11,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 22:05:11,516 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 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 44 [2022-12-13 22:05:11,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:05:11,517 INFO L225 Difference]: With dead ends: 99 [2022-12-13 22:05:11,517 INFO L226 Difference]: Without dead ends: 99 [2022-12-13 22:05:11,517 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 34 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2022-12-13 22:05:11,517 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 89 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 403 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 22:05:11,518 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 403 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 22:05:11,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2022-12-13 22:05:11,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 92. [2022-12-13 22:05:11,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 72 states have (on average 1.2361111111111112) internal successors, (89), 84 states have internal predecessors, (89), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-13 22:05:11,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 97 transitions. [2022-12-13 22:05:11,521 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 97 transitions. Word has length 44 [2022-12-13 22:05:11,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:05:11,521 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 97 transitions. [2022-12-13 22:05:11,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 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 22:05:11,521 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 97 transitions. [2022-12-13 22:05:11,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-12-13 22:05:11,521 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:05:11,522 INFO L195 NwaCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:05:11,534 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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 22:05:11,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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 22:05:11,723 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_kobject_putErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-13 22:05:11,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:05:11,725 INFO L85 PathProgramCache]: Analyzing trace with hash 1609523877, now seen corresponding path program 1 times [2022-12-13 22:05:11,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 22:05:11,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [358104463] [2022-12-13 22:05:11,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:05:11,726 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 22:05:11,727 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 22:05:11,729 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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 22:05:11,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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)] Waiting until timeout for monitored process [2022-12-13 22:05:11,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:05:11,913 INFO L263 TraceCheckSpWp]: Trace formula consists of 353 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-13 22:05:11,914 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 22:05:11,977 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2022-12-13 22:05:11,977 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 22:05:11,977 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 22:05:11,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [358104463] [2022-12-13 22:05:11,978 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [358104463] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:05:11,978 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:05:11,978 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 22:05:11,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041944321] [2022-12-13 22:05:11,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:05:11,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 22:05:11,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 22:05:11,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 22:05:11,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 22:05:11,979 INFO L87 Difference]: Start difference. First operand 92 states and 97 transitions. Second operand has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 6 states have internal predecessors, (29), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 22:05:12,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:05:12,018 INFO L93 Difference]: Finished difference Result 92 states and 96 transitions. [2022-12-13 22:05:12,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 22:05:12,018 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 6 states have internal predecessors, (29), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 49 [2022-12-13 22:05:12,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:05:12,019 INFO L225 Difference]: With dead ends: 92 [2022-12-13 22:05:12,019 INFO L226 Difference]: Without dead ends: 92 [2022-12-13 22:05:12,019 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-12-13 22:05:12,020 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 36 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 22:05:12,020 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 388 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 22:05:12,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2022-12-13 22:05:12,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2022-12-13 22:05:12,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 72 states have (on average 1.2222222222222223) internal successors, (88), 84 states have internal predecessors, (88), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-13 22:05:12,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 96 transitions. [2022-12-13 22:05:12,023 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 96 transitions. Word has length 49 [2022-12-13 22:05:12,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:05:12,024 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 96 transitions. [2022-12-13 22:05:12,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 6 states have internal predecessors, (29), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 22:05:12,024 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 96 transitions. [2022-12-13 22:05:12,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-12-13 22:05:12,024 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:05:12,024 INFO L195 NwaCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:05:12,048 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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)] Ended with exit code 0 [2022-12-13 22:05:12,225 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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 22:05:12,226 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_kobject_putErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-13 22:05:12,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:05:12,227 INFO L85 PathProgramCache]: Analyzing trace with hash -1068375809, now seen corresponding path program 1 times [2022-12-13 22:05:12,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 22:05:12,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [959060445] [2022-12-13 22:05:12,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:05:12,229 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 22:05:12,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 22:05:12,232 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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 22:05:12,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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 22:05:12,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:05:12,507 INFO L263 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 18 conjunts are in the unsatisfiable core [2022-12-13 22:05:12,508 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 22:05:12,511 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 22:05:12,635 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2022-12-13 22:05:12,635 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 22:05:12,636 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 22:05:12,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [959060445] [2022-12-13 22:05:12,636 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [959060445] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:05:12,636 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:05:12,636 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 22:05:12,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893637213] [2022-12-13 22:05:12,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:05:12,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 22:05:12,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 22:05:12,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 22:05:12,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-12-13 22:05:12,637 INFO L87 Difference]: Start difference. First operand 92 states and 96 transitions. Second operand has 11 states, 10 states have (on average 3.5) internal successors, (35), 9 states have internal predecessors, (35), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 22:05:13,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:05:13,022 INFO L93 Difference]: Finished difference Result 128 states and 135 transitions. [2022-12-13 22:05:13,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-13 22:05:13,022 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.5) internal successors, (35), 9 states have internal predecessors, (35), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 55 [2022-12-13 22:05:13,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:05:13,023 INFO L225 Difference]: With dead ends: 128 [2022-12-13 22:05:13,023 INFO L226 Difference]: Without dead ends: 128 [2022-12-13 22:05:13,023 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 44 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2022-12-13 22:05:13,024 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 156 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 22:05:13,025 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 301 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 22:05:13,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2022-12-13 22:05:13,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 108. [2022-12-13 22:05:13,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 86 states have (on average 1.2209302325581395) internal successors, (105), 98 states have internal predecessors, (105), 5 states have call successors, (5), 4 states have call predecessors, (5), 5 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2022-12-13 22:05:13,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 118 transitions. [2022-12-13 22:05:13,029 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 118 transitions. Word has length 55 [2022-12-13 22:05:13,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:05:13,029 INFO L495 AbstractCegarLoop]: Abstraction has 108 states and 118 transitions. [2022-12-13 22:05:13,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.5) internal successors, (35), 9 states have internal predecessors, (35), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 22:05:13,029 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 118 transitions. [2022-12-13 22:05:13,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-12-13 22:05:13,030 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:05:13,030 INFO L195 NwaCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:05:13,044 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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 22:05:13,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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 22:05:13,231 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_kobject_putErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-13 22:05:13,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:05:13,232 INFO L85 PathProgramCache]: Analyzing trace with hash -1068375808, now seen corresponding path program 1 times [2022-12-13 22:05:13,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 22:05:13,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1167188209] [2022-12-13 22:05:13,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:05:13,234 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 22:05:13,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 22:05:13,237 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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 22:05:13,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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 22:05:13,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:05:13,463 INFO L263 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 31 conjunts are in the unsatisfiable core [2022-12-13 22:05:13,465 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 22:05:13,474 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 22:05:13,688 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2022-12-13 22:05:13,688 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 22:05:13,688 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 22:05:13,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1167188209] [2022-12-13 22:05:13,688 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1167188209] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:05:13,689 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:05:13,689 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-13 22:05:13,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711305904] [2022-12-13 22:05:13,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:05:13,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 22:05:13,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 22:05:13,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 22:05:13,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2022-12-13 22:05:13,690 INFO L87 Difference]: Start difference. First operand 108 states and 118 transitions. Second operand has 12 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 10 states have internal predecessors, (35), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 22:05:14,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:05:14,100 INFO L93 Difference]: Finished difference Result 110 states and 119 transitions. [2022-12-13 22:05:14,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 22:05:14,100 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 10 states have internal predecessors, (35), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 55 [2022-12-13 22:05:14,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:05:14,101 INFO L225 Difference]: With dead ends: 110 [2022-12-13 22:05:14,101 INFO L226 Difference]: Without dead ends: 110 [2022-12-13 22:05:14,102 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 43 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=216, Unknown=0, NotChecked=0, Total=272 [2022-12-13 22:05:14,102 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 165 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 22:05:14,102 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 362 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 22:05:14,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2022-12-13 22:05:14,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 106. [2022-12-13 22:05:14,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 86 states have (on average 1.1744186046511629) internal successors, (101), 96 states have internal predecessors, (101), 5 states have call successors, (5), 4 states have call predecessors, (5), 5 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2022-12-13 22:05:14,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 114 transitions. [2022-12-13 22:05:14,105 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 114 transitions. Word has length 55 [2022-12-13 22:05:14,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:05:14,105 INFO L495 AbstractCegarLoop]: Abstraction has 106 states and 114 transitions. [2022-12-13 22:05:14,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 10 states have internal predecessors, (35), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 22:05:14,106 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 114 transitions. [2022-12-13 22:05:14,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-12-13 22:05:14,106 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:05:14,106 INFO L195 NwaCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:05:14,115 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Ended with exit code 0 [2022-12-13 22:05:14,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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 22:05:14,307 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_kobject_putErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-13 22:05:14,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:05:14,308 INFO L85 PathProgramCache]: Analyzing trace with hash 392980163, now seen corresponding path program 1 times [2022-12-13 22:05:14,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 22:05:14,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [595749153] [2022-12-13 22:05:14,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:05:14,310 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 22:05:14,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 22:05:14,313 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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 22:05:14,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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 22:05:14,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:05:14,695 INFO L263 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 24 conjunts are in the unsatisfiable core [2022-12-13 22:05:14,696 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 22:05:14,699 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 22:05:14,844 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2022-12-13 22:05:14,844 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 22:05:14,844 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 22:05:14,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [595749153] [2022-12-13 22:05:14,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [595749153] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:05:14,844 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:05:14,844 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-13 22:05:14,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269906894] [2022-12-13 22:05:14,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:05:14,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 22:05:14,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 22:05:14,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 22:05:14,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-12-13 22:05:14,846 INFO L87 Difference]: Start difference. First operand 106 states and 114 transitions. Second operand has 12 states, 11 states have (on average 3.727272727272727) internal successors, (41), 10 states have internal predecessors, (41), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 22:05:15,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:05:15,347 INFO L93 Difference]: Finished difference Result 123 states and 130 transitions. [2022-12-13 22:05:15,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 22:05:15,347 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.727272727272727) internal successors, (41), 10 states have internal predecessors, (41), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 61 [2022-12-13 22:05:15,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:05:15,348 INFO L225 Difference]: With dead ends: 123 [2022-12-13 22:05:15,348 INFO L226 Difference]: Without dead ends: 123 [2022-12-13 22:05:15,348 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 49 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=209, Unknown=0, NotChecked=0, Total=272 [2022-12-13 22:05:15,348 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 103 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-13 22:05:15,349 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 377 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-13 22:05:15,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2022-12-13 22:05:15,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 106. [2022-12-13 22:05:15,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 87 states have (on average 1.1724137931034482) internal successors, (102), 96 states have internal predecessors, (102), 5 states have call successors, (5), 4 states have call predecessors, (5), 5 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2022-12-13 22:05:15,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 115 transitions. [2022-12-13 22:05:15,351 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 115 transitions. Word has length 61 [2022-12-13 22:05:15,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:05:15,351 INFO L495 AbstractCegarLoop]: Abstraction has 106 states and 115 transitions. [2022-12-13 22:05:15,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.727272727272727) internal successors, (41), 10 states have internal predecessors, (41), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 22:05:15,351 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 115 transitions. [2022-12-13 22:05:15,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-12-13 22:05:15,352 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:05:15,352 INFO L195 NwaCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:05:15,362 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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 22:05:15,553 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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 22:05:15,554 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_kobject_putErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-13 22:05:15,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:05:15,555 INFO L85 PathProgramCache]: Analyzing trace with hash 392980164, now seen corresponding path program 1 times [2022-12-13 22:05:15,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 22:05:15,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [833346793] [2022-12-13 22:05:15,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:05:15,556 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 22:05:15,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 22:05:15,557 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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 22:05:15,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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 22:05:15,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:05:15,841 INFO L263 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 43 conjunts are in the unsatisfiable core [2022-12-13 22:05:15,843 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 22:05:15,851 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 22:05:16,129 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2022-12-13 22:05:16,129 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 22:05:16,129 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 22:05:16,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [833346793] [2022-12-13 22:05:16,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [833346793] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:05:16,130 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:05:16,130 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-13 22:05:16,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936682600] [2022-12-13 22:05:16,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:05:16,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 22:05:16,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 22:05:16,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 22:05:16,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-12-13 22:05:16,131 INFO L87 Difference]: Start difference. First operand 106 states and 115 transitions. Second operand has 13 states, 12 states have (on average 3.4166666666666665) internal successors, (41), 11 states have internal predecessors, (41), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 22:05:16,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:05:16,677 INFO L93 Difference]: Finished difference Result 108 states and 117 transitions. [2022-12-13 22:05:16,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-13 22:05:16,677 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.4166666666666665) internal successors, (41), 11 states have internal predecessors, (41), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 61 [2022-12-13 22:05:16,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:05:16,678 INFO L225 Difference]: With dead ends: 108 [2022-12-13 22:05:16,678 INFO L226 Difference]: Without dead ends: 108 [2022-12-13 22:05:16,678 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 48 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=274, Unknown=0, NotChecked=0, Total=342 [2022-12-13 22:05:16,679 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 163 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-13 22:05:16,679 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 358 Invalid, 309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-13 22:05:16,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2022-12-13 22:05:16,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 104. [2022-12-13 22:05:16,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 87 states have (on average 1.1379310344827587) internal successors, (99), 94 states have internal predecessors, (99), 5 states have call successors, (5), 4 states have call predecessors, (5), 5 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2022-12-13 22:05:16,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 112 transitions. [2022-12-13 22:05:16,683 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 112 transitions. Word has length 61 [2022-12-13 22:05:16,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:05:16,683 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 112 transitions. [2022-12-13 22:05:16,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.4166666666666665) internal successors, (41), 11 states have internal predecessors, (41), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 22:05:16,683 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 112 transitions. [2022-12-13 22:05:16,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-12-13 22:05:16,683 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:05:16,683 INFO L195 NwaCegarLoop]: trace histogram [16, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:05:16,696 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Ended with exit code 0 [2022-12-13 22:05:16,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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 22:05:16,885 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-13 22:05:16,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:05:16,886 INFO L85 PathProgramCache]: Analyzing trace with hash -458160035, now seen corresponding path program 1 times [2022-12-13 22:05:16,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 22:05:16,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [758875348] [2022-12-13 22:05:16,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:05:16,887 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 22:05:16,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 22:05:16,888 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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 22:05:16,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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 22:05:17,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:05:17,142 INFO L263 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-13 22:05:17,144 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 22:05:17,226 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2022-12-13 22:05:17,226 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 22:05:17,226 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 22:05:17,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [758875348] [2022-12-13 22:05:17,226 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [758875348] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:05:17,226 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:05:17,227 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 22:05:17,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066957240] [2022-12-13 22:05:17,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:05:17,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 22:05:17,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 22:05:17,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 22:05:17,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-13 22:05:17,227 INFO L87 Difference]: Start difference. First operand 104 states and 112 transitions. Second operand has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 8 states have internal predecessors, (40), 4 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-13 22:05:17,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:05:17,306 INFO L93 Difference]: Finished difference Result 108 states and 114 transitions. [2022-12-13 22:05:17,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 22:05:17,307 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 8 states have internal predecessors, (40), 4 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 63 [2022-12-13 22:05:17,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:05:17,307 INFO L225 Difference]: With dead ends: 108 [2022-12-13 22:05:17,307 INFO L226 Difference]: Without dead ends: 104 [2022-12-13 22:05:17,308 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-12-13 22:05:17,308 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 59 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 424 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 22:05:17,308 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 424 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 22:05:17,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2022-12-13 22:05:17,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2022-12-13 22:05:17,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 87 states have (on average 1.1149425287356323) internal successors, (97), 94 states have internal predecessors, (97), 5 states have call successors, (5), 4 states have call predecessors, (5), 5 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2022-12-13 22:05:17,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 110 transitions. [2022-12-13 22:05:17,312 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 110 transitions. Word has length 63 [2022-12-13 22:05:17,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:05:17,312 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 110 transitions. [2022-12-13 22:05:17,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 8 states have internal predecessors, (40), 4 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-13 22:05:17,312 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 110 transitions. [2022-12-13 22:05:17,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-12-13 22:05:17,313 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:05:17,313 INFO L195 NwaCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:05:17,322 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Ended with exit code 0 [2022-12-13 22:05:17,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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 22:05:17,522 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_kobject_putErr7ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-13 22:05:17,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:05:17,524 INFO L85 PathProgramCache]: Analyzing trace with hash -808735445, now seen corresponding path program 1 times [2022-12-13 22:05:17,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 22:05:17,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1368798687] [2022-12-13 22:05:17,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:05:17,525 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 22:05:17,526 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 22:05:17,528 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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 22:05:17,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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 22:05:17,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:05:17,998 INFO L263 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 22 conjunts are in the unsatisfiable core [2022-12-13 22:05:17,999 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 22:05:18,389 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2022-12-13 22:05:18,389 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 22:05:18,389 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 22:05:18,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1368798687] [2022-12-13 22:05:18,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1368798687] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:05:18,389 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:05:18,389 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-13 22:05:18,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765202380] [2022-12-13 22:05:18,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:05:18,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 22:05:18,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 22:05:18,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 22:05:18,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2022-12-13 22:05:18,390 INFO L87 Difference]: Start difference. First operand 104 states and 110 transitions. Second operand has 13 states, 12 states have (on average 3.6666666666666665) internal successors, (44), 10 states have internal predecessors, (44), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 22:05:18,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:05:18,774 INFO L93 Difference]: Finished difference Result 103 states and 109 transitions. [2022-12-13 22:05:18,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-13 22:05:18,775 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.6666666666666665) internal successors, (44), 10 states have internal predecessors, (44), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 64 [2022-12-13 22:05:18,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:05:18,775 INFO L225 Difference]: With dead ends: 103 [2022-12-13 22:05:18,775 INFO L226 Difference]: Without dead ends: 103 [2022-12-13 22:05:18,775 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 51 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2022-12-13 22:05:18,776 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 126 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 22:05:18,776 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 378 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 22:05:18,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2022-12-13 22:05:18,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2022-12-13 22:05:18,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 87 states have (on average 1.103448275862069) internal successors, (96), 93 states have internal predecessors, (96), 5 states have call successors, (5), 4 states have call predecessors, (5), 5 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2022-12-13 22:05:18,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 109 transitions. [2022-12-13 22:05:18,780 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 109 transitions. Word has length 64 [2022-12-13 22:05:18,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:05:18,780 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 109 transitions. [2022-12-13 22:05:18,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.6666666666666665) internal successors, (44), 10 states have internal predecessors, (44), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 22:05:18,780 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 109 transitions. [2022-12-13 22:05:18,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-12-13 22:05:18,781 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:05:18,781 INFO L195 NwaCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:05:18,790 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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)] Ended with exit code 0 [2022-12-13 22:05:18,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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 22:05:18,982 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_kobject_putErr9ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-13 22:05:18,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:05:18,983 INFO L85 PathProgramCache]: Analyzing trace with hash 1729031655, now seen corresponding path program 1 times [2022-12-13 22:05:18,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 22:05:18,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [392789510] [2022-12-13 22:05:18,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:05:18,985 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 22:05:18,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 22:05:18,988 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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 22:05:18,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2022-12-13 22:05:19,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:05:19,359 INFO L263 TraceCheckSpWp]: Trace formula consists of 456 conjuncts, 78 conjunts are in the unsatisfiable core [2022-12-13 22:05:19,365 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 22:05:19,476 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 38 [2022-12-13 22:05:19,572 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_2050 (_ BitVec 8)) (v_ArrVal_2049 (_ BitVec 8))) (= |c_#memory_int| (store |c_old(#memory_int)| |c_LDV_INIT_LIST_HEAD_#in~list.base| (store (store (select |c_old(#memory_int)| |c_LDV_INIT_LIST_HEAD_#in~list.base|) |c_LDV_INIT_LIST_HEAD_#in~list.offset| v_ArrVal_2049) (bvadd (_ bv4 32) |c_LDV_INIT_LIST_HEAD_#in~list.offset|) v_ArrVal_2050)))) is different from true [2022-12-13 22:05:19,584 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 29 treesize of output 32 [2022-12-13 22:05:19,857 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-13 22:05:19,861 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 22:05:19,862 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 70 treesize of output 69 [2022-12-13 22:05:20,069 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 22:05:20,070 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 43 treesize of output 23 [2022-12-13 22:05:20,294 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2022-12-13 22:05:20,294 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 22:05:20,294 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 22:05:20,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [392789510] [2022-12-13 22:05:20,294 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [392789510] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:05:20,294 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:05:20,294 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2022-12-13 22:05:20,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379185338] [2022-12-13 22:05:20,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:05:20,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-12-13 22:05:20,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 22:05:20,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-12-13 22:05:20,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=591, Unknown=1, NotChecked=48, Total=702 [2022-12-13 22:05:20,296 INFO L87 Difference]: Start difference. First operand 103 states and 109 transitions. Second operand has 27 states, 27 states have (on average 1.7407407407407407) internal successors, (47), 24 states have internal predecessors, (47), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 22:05:21,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:05:21,907 INFO L93 Difference]: Finished difference Result 99 states and 101 transitions. [2022-12-13 22:05:21,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-12-13 22:05:21,908 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 1.7407407407407407) internal successors, (47), 24 states have internal predecessors, (47), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 67 [2022-12-13 22:05:21,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:05:21,908 INFO L225 Difference]: With dead ends: 99 [2022-12-13 22:05:21,908 INFO L226 Difference]: Without dead ends: 99 [2022-12-13 22:05:21,909 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 321 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=183, Invalid=1626, Unknown=1, NotChecked=82, Total=1892 [2022-12-13 22:05:21,909 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 63 mSDsluCounter, 712 mSDsCounter, 0 mSdLazyCounter, 573 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 756 SdHoareTripleChecker+Invalid, 670 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 93 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-13 22:05:21,909 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 756 Invalid, 670 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 573 Invalid, 0 Unknown, 93 Unchecked, 0.9s Time] [2022-12-13 22:05:21,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2022-12-13 22:05:21,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 95. [2022-12-13 22:05:21,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 83 states have (on average 1.072289156626506) internal successors, (89), 86 states have internal predecessors, (89), 4 states have call successors, (4), 4 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 22:05:21,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 97 transitions. [2022-12-13 22:05:21,911 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 97 transitions. Word has length 67 [2022-12-13 22:05:21,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:05:21,911 INFO L495 AbstractCegarLoop]: Abstraction has 95 states and 97 transitions. [2022-12-13 22:05:21,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 1.7407407407407407) internal successors, (47), 24 states have internal predecessors, (47), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 22:05:21,911 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 97 transitions. [2022-12-13 22:05:21,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-12-13 22:05:21,911 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:05:21,912 INFO L195 NwaCegarLoop]: trace histogram [16, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:05:21,922 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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)] Ended with exit code 0 [2022-12-13 22:05:22,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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 22:05:22,113 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-13 22:05:22,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:05:22,114 INFO L85 PathProgramCache]: Analyzing trace with hash -1943196067, now seen corresponding path program 1 times [2022-12-13 22:05:22,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 22:05:22,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [921374791] [2022-12-13 22:05:22,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:05:22,116 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 22:05:22,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 22:05:22,117 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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 22:05:22,122 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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 22:05:22,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:05:22,535 INFO L263 TraceCheckSpWp]: Trace formula consists of 503 conjuncts, 114 conjunts are in the unsatisfiable core [2022-12-13 22:05:22,543 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 22:05:22,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:05:22,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:05:22,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:05:22,630 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-13 22:05:22,630 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-13 22:05:22,631 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2022-12-13 22:05:22,790 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_2235 (_ BitVec 8)) (v_ArrVal_2232 (_ BitVec 8))) (= (store |c_old(#memory_int)| |c_LDV_INIT_LIST_HEAD_#in~list.base| (store (store (select |c_old(#memory_int)| |c_LDV_INIT_LIST_HEAD_#in~list.base|) |c_LDV_INIT_LIST_HEAD_#in~list.offset| v_ArrVal_2232) (bvadd (_ bv4 32) |c_LDV_INIT_LIST_HEAD_#in~list.offset|) v_ArrVal_2235)) |c_#memory_int|)) is different from true [2022-12-13 22:05:22,808 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 22:05:22,809 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 15 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 59 treesize of output 71 [2022-12-13 22:05:23,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:05:23,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:05:23,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:05:23,186 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-13 22:05:23,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:05:23,187 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-13 22:05:23,188 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-13 22:05:23,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:05:23,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:05:23,190 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-13 22:05:23,198 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 22:05:23,198 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 10 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 193 treesize of output 165 [2022-12-13 22:05:23,903 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 22:05:23,904 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 249 treesize of output 137 [2022-12-13 22:05:28,605 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2022-12-13 22:05:28,605 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 22:05:54,691 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 22:05:54,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [921374791] [2022-12-13 22:05:54,691 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [921374791] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 22:05:54,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1949042678] [2022-12-13 22:05:54,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:05:54,692 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-13 22:05:54,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/cvc4 [2022-12-13 22:05:54,693 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-13 22:05:54,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (30)] Waiting until timeout for monitored process [2022-12-13 22:05:56,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:05:56,342 INFO L263 TraceCheckSpWp]: Trace formula consists of 503 conjuncts, 131 conjunts are in the unsatisfiable core [2022-12-13 22:05:56,349 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 22:05:58,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:05:58,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:05:58,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:05:58,338 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-13 22:05:58,339 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-13 22:05:58,339 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2022-12-13 22:05:58,417 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_2437 (_ BitVec 8)) (v_ArrVal_2232 (_ BitVec 8))) (= |c_#memory_int| (store |c_old(#memory_int)| |c_LDV_INIT_LIST_HEAD_#in~list.base| (store (store (select |c_old(#memory_int)| |c_LDV_INIT_LIST_HEAD_#in~list.base|) |c_LDV_INIT_LIST_HEAD_#in~list.offset| v_ArrVal_2232) (bvadd (_ bv4 32) |c_LDV_INIT_LIST_HEAD_#in~list.offset|) v_ArrVal_2437)))) is different from true [2022-12-13 22:05:58,431 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 22:05:58,432 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 15 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 59 treesize of output 71 [2022-12-13 22:05:58,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:05:58,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:05:58,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:05:58,572 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-13 22:05:58,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:05:58,573 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-13 22:05:58,573 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-13 22:05:58,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:05:58,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:05:58,575 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-13 22:05:58,583 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 22:05:58,583 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 10 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 193 treesize of output 165 [2022-12-13 22:05:58,788 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 22:05:58,788 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 249 treesize of output 137 [2022-12-13 22:05:58,887 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 135 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-12-13 22:05:58,887 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 22:06:00,982 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1949042678] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 22:06:00,982 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 22:06:00,982 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 43] total 44 [2022-12-13 22:06:00,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300778059] [2022-12-13 22:06:00,982 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 22:06:00,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2022-12-13 22:06:00,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 22:06:00,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2022-12-13 22:06:00,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=203, Invalid=3825, Unknown=12, NotChecked=250, Total=4290 [2022-12-13 22:06:00,984 INFO L87 Difference]: Start difference. First operand 95 states and 97 transitions. Second operand has 44 states, 43 states have (on average 1.6046511627906976) internal successors, (69), 41 states have internal predecessors, (69), 4 states have call successors, (4), 2 states have call predecessors, (4), 5 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2022-12-13 22:06:03,081 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_old(#memory_int)| |c_LDV_INIT_LIST_HEAD_#in~list.base|)) (.cse1 (bvadd (_ bv4 32) |c_LDV_INIT_LIST_HEAD_#in~list.offset|))) (and (exists ((v_ArrVal_2235 (_ BitVec 8)) (v_ArrVal_2232 (_ BitVec 8))) (= (store |c_old(#memory_int)| |c_LDV_INIT_LIST_HEAD_#in~list.base| (store (store .cse0 |c_LDV_INIT_LIST_HEAD_#in~list.offset| v_ArrVal_2232) .cse1 v_ArrVal_2235)) |c_#memory_int|)) (exists ((v_ArrVal_2437 (_ BitVec 8)) (v_ArrVal_2232 (_ BitVec 8))) (= |c_#memory_int| (store |c_old(#memory_int)| |c_LDV_INIT_LIST_HEAD_#in~list.base| (store (store .cse0 |c_LDV_INIT_LIST_HEAD_#in~list.offset| v_ArrVal_2232) .cse1 v_ArrVal_2437)))))) is different from true [2022-12-13 22:06:45,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:06:45,421 INFO L93 Difference]: Finished difference Result 99 states and 100 transitions. [2022-12-13 22:06:45,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-12-13 22:06:45,422 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 43 states have (on average 1.6046511627906976) internal successors, (69), 41 states have internal predecessors, (69), 4 states have call successors, (4), 2 states have call predecessors, (4), 5 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 79 [2022-12-13 22:06:45,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:06:45,422 INFO L225 Difference]: With dead ends: 99 [2022-12-13 22:06:45,423 INFO L226 Difference]: Without dead ends: 95 [2022-12-13 22:06:45,424 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 172 SyntacticMatches, 2 SemanticMatches, 90 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 1822 ImplicationChecksByTransitivity, 74.7s TimeCoverageRelationStatistics Valid=524, Invalid=7297, Unknown=23, NotChecked=528, Total=8372 [2022-12-13 22:06:45,424 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 118 mSDsluCounter, 953 mSDsCounter, 0 mSdLazyCounter, 1404 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 993 SdHoareTripleChecker+Invalid, 1602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 194 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-12-13 22:06:45,424 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 993 Invalid, 1602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1404 Invalid, 0 Unknown, 194 Unchecked, 2.5s Time] [2022-12-13 22:06:45,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2022-12-13 22:06:45,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2022-12-13 22:06:45,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 83 states have (on average 1.0602409638554218) internal successors, (88), 86 states have internal predecessors, (88), 4 states have call successors, (4), 4 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 22:06:45,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 96 transitions. [2022-12-13 22:06:45,426 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 96 transitions. Word has length 79 [2022-12-13 22:06:45,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:06:45,426 INFO L495 AbstractCegarLoop]: Abstraction has 95 states and 96 transitions. [2022-12-13 22:06:45,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 43 states have (on average 1.6046511627906976) internal successors, (69), 41 states have internal predecessors, (69), 4 states have call successors, (4), 2 states have call predecessors, (4), 5 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2022-12-13 22:06:45,426 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 96 transitions. [2022-12-13 22:06:45,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-12-13 22:06:45,426 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:06:45,427 INFO L195 NwaCegarLoop]: trace histogram [16, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:06:45,437 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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)] Ended with exit code 0 [2022-12-13 22:06:45,639 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (30)] Ended with exit code 0 [2022-12-13 22:06:45,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt [2022-12-13 22:06:45,829 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_kobject_putErr9ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-13 22:06:45,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:06:45,830 INFO L85 PathProgramCache]: Analyzing trace with hash -826672710, now seen corresponding path program 1 times [2022-12-13 22:06:45,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 22:06:45,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1472160487] [2022-12-13 22:06:45,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:06:45,832 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 22:06:45,833 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 22:06:45,835 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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 22:06:45,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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 22:06:46,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:06:46,323 INFO L263 TraceCheckSpWp]: Trace formula consists of 529 conjuncts, 156 conjunts are in the unsatisfiable core [2022-12-13 22:06:46,331 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 22:06:46,383 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-13 22:06:46,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:06:46,411 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-13 22:06:46,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:06:46,446 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2022-12-13 22:06:46,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:06:46,475 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2022-12-13 22:06:46,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:06:46,502 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-13 22:06:46,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:06:46,534 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-13 22:06:46,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:06:46,565 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2022-12-13 22:06:46,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:06:46,598 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-13 22:06:46,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:06:46,636 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2022-12-13 22:06:46,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:06:46,667 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-13 22:06:46,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:06:46,712 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-13 22:06:46,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:06:46,752 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2022-12-13 22:06:46,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:06:46,791 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-13 22:06:46,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:06:46,832 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-13 22:06:46,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:06:46,869 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2022-12-13 22:06:46,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:06:46,907 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-13 22:06:47,121 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 47 [2022-12-13 22:06:47,257 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_2669 (_ BitVec 32)) (v_ArrVal_2672 (_ BitVec 32))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_LDV_INIT_LIST_HEAD_#in~list.base| (store (store (select |c_old(#memory_$Pointer$.offset)| |c_LDV_INIT_LIST_HEAD_#in~list.base|) |c_LDV_INIT_LIST_HEAD_#in~list.offset| v_ArrVal_2669) (bvadd (_ bv4 32) |c_LDV_INIT_LIST_HEAD_#in~list.offset|) v_ArrVal_2672)))) is different from true [2022-12-13 22:06:47,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:06:47,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:06:47,267 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 26 treesize of output 29 [2022-12-13 22:06:47,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:06:47,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:06:47,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:06:47,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:06:47,415 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 47 [2022-12-13 22:06:47,627 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_2678 (_ BitVec 32)) (v_ArrVal_2679 (_ BitVec 32)) (v_ArrVal_2681 (_ BitVec 32)) (v_ArrVal_2680 (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.offset)| |c_ldv_kobject_put_#in~kobj#1.base| (store (store (store (store (select |c_old(#memory_$Pointer$.offset)| |c_ldv_kobject_put_#in~kobj#1.base|) (bvadd |c_ldv_kobject_put_#in~kobj#1.offset| (_ bv12 32)) v_ArrVal_2679) (bvadd |c_ldv_kobject_put_#in~kobj#1.offset| (_ bv13 32)) v_ArrVal_2678) (bvadd (_ bv14 32) |c_ldv_kobject_put_#in~kobj#1.offset|) v_ArrVal_2681) (bvadd |c_ldv_kobject_put_#in~kobj#1.offset| (_ bv15 32)) v_ArrVal_2680)) |c_#memory_$Pointer$.offset|)) is different from true [2022-12-13 22:06:47,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:06:47,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:06:47,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:06:47,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:06:47,678 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 47 [2022-12-13 22:06:47,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:06:47,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:06:47,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:06:47,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:06:47,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:06:47,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:06:47,847 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 45 [2022-12-13 22:06:47,951 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 22:06:48,020 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 141 refuted. 0 times theorem prover too weak. 0 trivial. 3 not checked. [2022-12-13 22:06:48,021 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 22:06:50,792 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 22:06:50,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1472160487] [2022-12-13 22:06:50,792 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1472160487] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 22:06:50,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1169623107] [2022-12-13 22:06:50,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:06:50,792 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-13 22:06:50,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/cvc4 [2022-12-13 22:06:50,793 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-13 22:06:50,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (32)] Waiting until timeout for monitored process [2022-12-13 22:06:51,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:06:51,740 INFO L263 TraceCheckSpWp]: Trace formula consists of 529 conjuncts, 152 conjunts are in the unsatisfiable core [2022-12-13 22:06:51,749 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 22:06:51,787 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 14 treesize of output 10 [2022-12-13 22:06:51,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:06:51,824 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-13 22:06:51,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:06:51,842 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-13 22:06:51,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:06:51,862 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-13 22:06:51,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:06:51,882 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2022-12-13 22:06:51,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:06:51,896 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2022-12-13 22:06:51,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:06:51,916 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-13 22:06:51,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:06:51,937 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-13 22:06:51,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:06:51,952 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2022-12-13 22:06:51,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:06:51,981 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2022-12-13 22:06:52,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:06:52,001 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2022-12-13 22:06:52,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:06:52,015 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-13 22:06:52,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:06:52,031 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-13 22:06:52,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:06:52,051 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-13 22:06:52,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:06:52,065 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-13 22:06:52,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:06:52,080 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-13 22:06:52,126 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 47 [2022-12-13 22:06:52,214 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_2920 (_ BitVec 32)) (v_ArrVal_2669 (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.offset)| |c_LDV_INIT_LIST_HEAD_#in~list.base| (store (store (select |c_old(#memory_$Pointer$.offset)| |c_LDV_INIT_LIST_HEAD_#in~list.base|) |c_LDV_INIT_LIST_HEAD_#in~list.offset| v_ArrVal_2669) (bvadd (_ bv4 32) |c_LDV_INIT_LIST_HEAD_#in~list.offset|) v_ArrVal_2920)) |c_#memory_$Pointer$.offset|)) is different from true [2022-12-13 22:06:52,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:06:52,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:06:52,225 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 26 treesize of output 29 [2022-12-13 22:06:52,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:06:52,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:06:52,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:06:52,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:06:52,273 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 47 [2022-12-13 22:06:52,334 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_2930 (_ BitVec 32)) (v_ArrVal_2926 (_ BitVec 32)) (v_ArrVal_2927 (_ BitVec 32)) (v_ArrVal_2929 (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.offset)| |c_ldv_kobject_put_#in~kobj#1.base| (store (store (store (store (select |c_old(#memory_$Pointer$.offset)| |c_ldv_kobject_put_#in~kobj#1.base|) (bvadd |c_ldv_kobject_put_#in~kobj#1.offset| (_ bv12 32)) v_ArrVal_2927) (bvadd |c_ldv_kobject_put_#in~kobj#1.offset| (_ bv13 32)) v_ArrVal_2930) (bvadd (_ bv14 32) |c_ldv_kobject_put_#in~kobj#1.offset|) v_ArrVal_2929) (bvadd |c_ldv_kobject_put_#in~kobj#1.offset| (_ bv15 32)) v_ArrVal_2926)) |c_#memory_$Pointer$.offset|)) is different from true [2022-12-13 22:06:52,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:06:52,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:06:52,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:06:52,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:06:52,390 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 47 [2022-12-13 22:06:52,482 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 39 [2022-12-13 22:06:52,617 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 22:06:52,618 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 15 treesize of output 15 [2022-12-13 22:06:52,723 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 141 refuted. 0 times theorem prover too weak. 0 trivial. 3 not checked. [2022-12-13 22:06:52,724 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 22:06:54,275 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1169623107] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 22:06:54,275 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 22:06:54,275 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 44] total 50 [2022-12-13 22:06:54,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112193635] [2022-12-13 22:06:54,275 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 22:06:54,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2022-12-13 22:06:54,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 22:06:54,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2022-12-13 22:06:54,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=245, Invalid=3927, Unknown=4, NotChecked=516, Total=4692 [2022-12-13 22:06:54,277 INFO L87 Difference]: Start difference. First operand 95 states and 96 transitions. Second operand has 51 states, 50 states have (on average 1.84) internal successors, (92), 48 states have internal predecessors, (92), 3 states have call successors, (4), 3 states have call predecessors, (4), 5 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2022-12-13 22:06:57,580 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_old(#memory_$Pointer$.offset)| |c_LDV_INIT_LIST_HEAD_#in~list.base|)) (.cse1 (bvadd (_ bv4 32) |c_LDV_INIT_LIST_HEAD_#in~list.offset|))) (and (exists ((v_ArrVal_2669 (_ BitVec 32)) (v_ArrVal_2672 (_ BitVec 32))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_LDV_INIT_LIST_HEAD_#in~list.base| (store (store .cse0 |c_LDV_INIT_LIST_HEAD_#in~list.offset| v_ArrVal_2669) .cse1 v_ArrVal_2672)))) (exists ((v_ArrVal_2920 (_ BitVec 32)) (v_ArrVal_2669 (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.offset)| |c_LDV_INIT_LIST_HEAD_#in~list.base| (store (store .cse0 |c_LDV_INIT_LIST_HEAD_#in~list.offset| v_ArrVal_2669) .cse1 v_ArrVal_2920)) |c_#memory_$Pointer$.offset|)))) is different from true [2022-12-13 22:07:01,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:07:01,732 INFO L93 Difference]: Finished difference Result 94 states and 95 transitions. [2022-12-13 22:07:01,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-12-13 22:07:01,732 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 50 states have (on average 1.84) internal successors, (92), 48 states have internal predecessors, (92), 3 states have call successors, (4), 3 states have call predecessors, (4), 5 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 80 [2022-12-13 22:07:01,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:07:01,733 INFO L225 Difference]: With dead ends: 94 [2022-12-13 22:07:01,733 INFO L226 Difference]: Without dead ends: 94 [2022-12-13 22:07:01,736 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 147 SyntacticMatches, 3 SemanticMatches, 99 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 2362 ImplicationChecksByTransitivity, 8.7s TimeCoverageRelationStatistics Valid=587, Invalid=8544, Unknown=9, NotChecked=960, Total=10100 [2022-12-13 22:07:01,737 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 261 mSDsluCounter, 837 mSDsCounter, 0 mSdLazyCounter, 1855 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 873 SdHoareTripleChecker+Invalid, 2231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1855 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 355 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-12-13 22:07:01,737 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [261 Valid, 873 Invalid, 2231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1855 Invalid, 0 Unknown, 355 Unchecked, 3.4s Time] [2022-12-13 22:07:01,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2022-12-13 22:07:01,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2022-12-13 22:07:01,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 83 states have (on average 1.0481927710843373) internal successors, (87), 85 states have internal predecessors, (87), 4 states have call successors, (4), 4 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 22:07:01,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 95 transitions. [2022-12-13 22:07:01,738 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 95 transitions. Word has length 80 [2022-12-13 22:07:01,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:07:01,738 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 95 transitions. [2022-12-13 22:07:01,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 50 states have (on average 1.84) internal successors, (92), 48 states have internal predecessors, (92), 3 states have call successors, (4), 3 states have call predecessors, (4), 5 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2022-12-13 22:07:01,739 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 95 transitions. [2022-12-13 22:07:01,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-12-13 22:07:01,739 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:07:01,739 INFO L195 NwaCegarLoop]: trace histogram [16, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:07:01,754 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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)] Ended with exit code 0 [2022-12-13 22:07:01,945 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (32)] Ended with exit code 0 [2022-12-13 22:07:02,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt [2022-12-13 22:07:02,141 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ldv_kobject_putErr10ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-13 22:07:02,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:07:02,142 INFO L85 PathProgramCache]: Analyzing trace with hash 142949917, now seen corresponding path program 1 times [2022-12-13 22:07:02,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 22:07:02,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [130735424] [2022-12-13 22:07:02,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:07:02,144 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 22:07:02,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 22:07:02,145 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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 22:07:02,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2022-12-13 22:07:02,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:07:02,731 INFO L263 TraceCheckSpWp]: Trace formula consists of 530 conjuncts, 156 conjunts are in the unsatisfiable core [2022-12-13 22:07:02,738 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 22:07:02,822 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-13 22:07:02,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:07:02,864 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2022-12-13 22:07:02,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:07:02,910 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-13 22:07:02,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:07:02,950 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2022-12-13 22:07:02,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:07:02,992 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-13 22:07:03,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:07:03,050 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2022-12-13 22:07:03,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:07:03,086 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2022-12-13 22:07:03,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:07:03,131 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2022-12-13 22:07:03,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:07:03,173 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2022-12-13 22:07:03,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:07:03,235 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-13 22:07:03,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:07:03,300 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2022-12-13 22:07:03,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:07:03,358 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-13 22:07:03,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:07:03,427 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2022-12-13 22:07:03,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:07:03,489 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-13 22:07:03,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:07:03,552 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2022-12-13 22:07:03,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:07:03,618 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-13 22:07:03,828 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 47 [2022-12-13 22:07:04,030 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_3157 (_ BitVec 32)) (v_ArrVal_3160 (_ BitVec 32))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_LDV_INIT_LIST_HEAD_#in~list.base| (store (store (select |c_old(#memory_$Pointer$.base)| |c_LDV_INIT_LIST_HEAD_#in~list.base|) |c_LDV_INIT_LIST_HEAD_#in~list.offset| v_ArrVal_3157) (bvadd (_ bv4 32) |c_LDV_INIT_LIST_HEAD_#in~list.offset|) v_ArrVal_3160)))) is different from true [2022-12-13 22:07:04,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:07:04,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:07:04,044 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 26 treesize of output 29 [2022-12-13 22:07:04,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:07:04,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:07:04,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:07:04,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:07:04,276 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 47 [2022-12-13 22:07:04,528 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_3168 (_ BitVec 32)) (v_ArrVal_3169 (_ BitVec 32)) (v_ArrVal_3166 (_ BitVec 32)) (v_ArrVal_3167 (_ BitVec 32))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_ldv_kobject_put_#in~kobj#1.base| (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_ldv_kobject_put_#in~kobj#1.base|) (bvadd |c_ldv_kobject_put_#in~kobj#1.offset| (_ bv12 32)) v_ArrVal_3168) (bvadd |c_ldv_kobject_put_#in~kobj#1.offset| (_ bv13 32)) v_ArrVal_3169) (bvadd (_ bv14 32) |c_ldv_kobject_put_#in~kobj#1.offset|) v_ArrVal_3166) (bvadd |c_ldv_kobject_put_#in~kobj#1.offset| (_ bv15 32)) v_ArrVal_3167)))) is different from true [2022-12-13 22:07:04,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:07:04,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:07:04,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:07:04,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:07:04,587 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 47 [2022-12-13 22:07:04,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:07:04,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:07:04,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:07:04,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:07:04,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:07:04,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:07:04,811 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 45 [2022-12-13 22:07:04,956 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 22:07:05,103 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 141 refuted. 0 times theorem prover too weak. 0 trivial. 3 not checked. [2022-12-13 22:07:05,103 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 22:07:08,412 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 22:07:08,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [130735424] [2022-12-13 22:07:08,412 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [130735424] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 22:07:08,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1107008311] [2022-12-13 22:07:08,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:07:08,412 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-13 22:07:08,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/cvc4 [2022-12-13 22:07:08,413 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-13 22:07:08,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (34)] Waiting until timeout for monitored process [2022-12-13 22:07:09,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:07:09,159 INFO L263 TraceCheckSpWp]: Trace formula consists of 530 conjuncts, 152 conjunts are in the unsatisfiable core [2022-12-13 22:07:09,166 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 22:07:09,204 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-13 22:07:09,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:07:09,229 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-13 22:07:09,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:07:09,250 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-13 22:07:09,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:07:09,269 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-13 22:07:09,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:07:09,287 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2022-12-13 22:07:09,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:07:09,308 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-13 22:07:09,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:07:09,328 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2022-12-13 22:07:09,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:07:09,347 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-13 22:07:09,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:07:09,368 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-13 22:07:09,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:07:09,388 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-13 22:07:09,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:07:09,419 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2022-12-13 22:07:09,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:07:09,430 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-13 22:07:09,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:07:09,454 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2022-12-13 22:07:09,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:07:09,478 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-13 22:07:09,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:07:09,491 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-13 22:07:09,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:07:09,508 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-13 22:07:09,564 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 47 [2022-12-13 22:07:09,662 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_3157 (_ BitVec 32)) (v_ArrVal_3407 (_ BitVec 32))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_LDV_INIT_LIST_HEAD_#in~list.base| (store (store (select |c_old(#memory_$Pointer$.base)| |c_LDV_INIT_LIST_HEAD_#in~list.base|) |c_LDV_INIT_LIST_HEAD_#in~list.offset| v_ArrVal_3157) (bvadd (_ bv4 32) |c_LDV_INIT_LIST_HEAD_#in~list.offset|) v_ArrVal_3407)))) is different from true [2022-12-13 22:07:09,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:07:09,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:07:09,679 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 26 treesize of output 29 [2022-12-13 22:07:09,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:07:09,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:07:09,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:07:09,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:07:09,737 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 47 [2022-12-13 22:07:09,821 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_3416 (_ BitVec 32)) (v_ArrVal_3417 (_ BitVec 32)) (v_ArrVal_3414 (_ BitVec 32)) (v_ArrVal_3415 (_ BitVec 32))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_ldv_kobject_put_#in~kobj#1.base| (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_ldv_kobject_put_#in~kobj#1.base|) (bvadd |c_ldv_kobject_put_#in~kobj#1.offset| (_ bv12 32)) v_ArrVal_3416) (bvadd |c_ldv_kobject_put_#in~kobj#1.offset| (_ bv13 32)) v_ArrVal_3417) (bvadd (_ bv14 32) |c_ldv_kobject_put_#in~kobj#1.offset|) v_ArrVal_3414) (bvadd |c_ldv_kobject_put_#in~kobj#1.offset| (_ bv15 32)) v_ArrVal_3415)))) is different from true [2022-12-13 22:07:09,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:07:09,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:07:09,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:07:09,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:07:09,881 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 47 [2022-12-13 22:07:10,027 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 39 [2022-12-13 22:07:10,212 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 22:07:10,213 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 15 treesize of output 15 [2022-12-13 22:07:10,373 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 141 refuted. 0 times theorem prover too weak. 0 trivial. 3 not checked. [2022-12-13 22:07:10,373 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 22:07:12,226 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1107008311] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 22:07:12,227 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 22:07:12,227 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [45, 46] total 52 [2022-12-13 22:07:12,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588735279] [2022-12-13 22:07:12,227 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 22:07:12,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2022-12-13 22:07:12,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 22:07:12,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2022-12-13 22:07:12,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=262, Invalid=4040, Unknown=4, NotChecked=524, Total=4830 [2022-12-13 22:07:12,229 INFO L87 Difference]: Start difference. First operand 94 states and 95 transitions. Second operand has 52 states, 52 states have (on average 1.7884615384615385) internal successors, (93), 49 states have internal predecessors, (93), 3 states have call successors, (4), 3 states have call predecessors, (4), 5 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2022-12-13 22:07:15,067 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_old(#memory_$Pointer$.base)| |c_LDV_INIT_LIST_HEAD_#in~list.base|)) (.cse1 (bvadd (_ bv4 32) |c_LDV_INIT_LIST_HEAD_#in~list.offset|))) (and (exists ((v_ArrVal_3157 (_ BitVec 32)) (v_ArrVal_3160 (_ BitVec 32))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_LDV_INIT_LIST_HEAD_#in~list.base| (store (store .cse0 |c_LDV_INIT_LIST_HEAD_#in~list.offset| v_ArrVal_3157) .cse1 v_ArrVal_3160)))) (exists ((v_ArrVal_3157 (_ BitVec 32)) (v_ArrVal_3407 (_ BitVec 32))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_LDV_INIT_LIST_HEAD_#in~list.base| (store (store .cse0 |c_LDV_INIT_LIST_HEAD_#in~list.offset| v_ArrVal_3157) .cse1 v_ArrVal_3407)))))) is different from true [2022-12-13 22:07:19,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:07:19,297 INFO L93 Difference]: Finished difference Result 90 states and 90 transitions. [2022-12-13 22:07:19,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-12-13 22:07:19,297 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 52 states have (on average 1.7884615384615385) internal successors, (93), 49 states have internal predecessors, (93), 3 states have call successors, (4), 3 states have call predecessors, (4), 5 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 81 [2022-12-13 22:07:19,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:07:19,298 INFO L225 Difference]: With dead ends: 90 [2022-12-13 22:07:19,298 INFO L226 Difference]: Without dead ends: 89 [2022-12-13 22:07:19,301 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 151 SyntacticMatches, 2 SemanticMatches, 86 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 2037 ImplicationChecksByTransitivity, 9.5s TimeCoverageRelationStatistics Valid=525, Invalid=6291, Unknown=10, NotChecked=830, Total=7656 [2022-12-13 22:07:19,302 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 177 mSDsluCounter, 563 mSDsCounter, 0 mSdLazyCounter, 1540 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 595 SdHoareTripleChecker+Invalid, 1884 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1540 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 323 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-12-13 22:07:19,302 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 595 Invalid, 1884 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1540 Invalid, 0 Unknown, 323 Unchecked, 3.5s Time] [2022-12-13 22:07:19,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2022-12-13 22:07:19,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2022-12-13 22:07:19,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 80 states have (on average 1.0125) internal successors, (81), 80 states have internal predecessors, (81), 4 states have call successors, (4), 4 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 22:07:19,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 89 transitions. [2022-12-13 22:07:19,304 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 89 transitions. Word has length 81 [2022-12-13 22:07:19,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:07:19,305 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 89 transitions. [2022-12-13 22:07:19,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 52 states have (on average 1.7884615384615385) internal successors, (93), 49 states have internal predecessors, (93), 3 states have call successors, (4), 3 states have call predecessors, (4), 5 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2022-12-13 22:07:19,305 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 89 transitions. [2022-12-13 22:07:19,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-12-13 22:07:19,305 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:07:19,305 INFO L195 NwaCegarLoop]: trace histogram [16, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:07:19,318 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Forceful destruction successful, exit code 0 [2022-12-13 22:07:19,516 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (34)] Ended with exit code 0 [2022-12-13 22:07:19,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt [2022-12-13 22:07:19,707 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-13 22:07:19,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:07:19,709 INFO L85 PathProgramCache]: Analyzing trace with hash -2138038455, now seen corresponding path program 1 times [2022-12-13 22:07:19,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 22:07:19,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1365477720] [2022-12-13 22:07:19,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:07:19,710 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 22:07:19,710 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 22:07:19,711 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -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 22:07:19,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2022-12-13 22:07:20,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:07:20,354 INFO L263 TraceCheckSpWp]: Trace formula consists of 538 conjuncts, 30 conjunts are in the unsatisfiable core [2022-12-13 22:07:20,356 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 22:07:20,595 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 0 case distinctions, treesize of input 12 treesize of output 11 [2022-12-13 22:07:20,945 WARN L859 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_entry_point_~kobj~2#1.base| (_ BitVec 32))) (and (= (select |c_ULTIMATE.start_main_old_#valid#1| |ULTIMATE.start_entry_point_~kobj~2#1.base|) (_ bv0 1)) (= |c_#valid| (store |c_ULTIMATE.start_main_old_#valid#1| |ULTIMATE.start_entry_point_~kobj~2#1.base| (_ bv0 1))))) is different from true [2022-12-13 22:07:20,952 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2022-12-13 22:07:20,952 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 22:07:21,661 WARN L837 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_ldv_kobject_create_#t~ret34#1.base_33| (_ BitVec 32))) (or (= (store |c_#valid| |v_ULTIMATE.start_ldv_kobject_create_#t~ret34#1.base_33| (_ bv0 1)) |c_ULTIMATE.start_main_old_#valid#1|) (not (= (select |c_#valid| |v_ULTIMATE.start_ldv_kobject_create_#t~ret34#1.base_33|) (_ bv0 1))))) is different from false [2022-12-13 22:07:21,663 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 22:07:21,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1365477720] [2022-12-13 22:07:21,663 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1365477720] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 22:07:21,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [368390154] [2022-12-13 22:07:21,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:07:21,663 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-13 22:07:21,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/cvc4 [2022-12-13 22:07:21,664 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-13 22:07:21,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (36)] Waiting until timeout for monitored process [2022-12-13 22:07:22,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:07:22,509 INFO L263 TraceCheckSpWp]: Trace formula consists of 538 conjuncts, 31 conjunts are in the unsatisfiable core [2022-12-13 22:07:22,511 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 22:07:22,949 INFO L321 Elim1Store]: treesize reduction 23, result has 32.4 percent of original size [2022-12-13 22:07:22,950 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 17 treesize of output 25 [2022-12-13 22:07:23,321 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2022-12-13 22:07:23,321 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 22:07:23,759 WARN L837 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_ldv_kobject_create_#t~ret34#1.base_36| (_ BitVec 32))) (or (= (store |c_#valid| |v_ULTIMATE.start_ldv_kobject_create_#t~ret34#1.base_36| (_ bv0 1)) |c_ULTIMATE.start_main_old_#valid#1|) (not (= (select |c_#valid| |v_ULTIMATE.start_ldv_kobject_create_#t~ret34#1.base_36|) (_ bv0 1))))) is different from false [2022-12-13 22:07:23,761 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [368390154] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 22:07:23,761 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 22:07:23,761 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 19 [2022-12-13 22:07:23,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089407357] [2022-12-13 22:07:23,761 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 22:07:23,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-12-13 22:07:23,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 22:07:23,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-12-13 22:07:23,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=625, Unknown=3, NotChecked=156, Total=870 [2022-12-13 22:07:23,763 INFO L87 Difference]: Start difference. First operand 89 states and 89 transitions. Second operand has 20 states, 18 states have (on average 5.111111111111111) internal successors, (92), 18 states have internal predecessors, (92), 6 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 8 states have call predecessors, (8), 6 states have call successors, (8) [2022-12-13 22:07:25,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:07:25,125 INFO L93 Difference]: Finished difference Result 88 states and 88 transitions. [2022-12-13 22:07:25,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 22:07:25,125 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 18 states have (on average 5.111111111111111) internal successors, (92), 18 states have internal predecessors, (92), 6 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 8 states have call predecessors, (8), 6 states have call successors, (8) Word has length 88 [2022-12-13 22:07:25,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:07:25,126 INFO L225 Difference]: With dead ends: 88 [2022-12-13 22:07:25,126 INFO L226 Difference]: Without dead ends: 0 [2022-12-13 22:07:25,127 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 350 GetRequests, 307 SyntacticMatches, 4 SemanticMatches, 39 ConstructedPredicates, 3 IntricatePredicates, 4 DeprecatedPredicates, 340 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=186, Invalid=1229, Unknown=3, NotChecked=222, Total=1640 [2022-12-13 22:07:25,127 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 117 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 395 SdHoareTripleChecker+Invalid, 476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 63 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-13 22:07:25,127 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 395 Invalid, 476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 393 Invalid, 0 Unknown, 63 Unchecked, 0.9s Time] [2022-12-13 22:07:25,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-13 22:07:25,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-13 22:07:25,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:07:25,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-13 22:07:25,128 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 88 [2022-12-13 22:07:25,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:07:25,128 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-13 22:07:25,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 18 states have (on average 5.111111111111111) internal successors, (92), 18 states have internal predecessors, (92), 6 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 8 states have call predecessors, (8), 6 states have call successors, (8) [2022-12-13 22:07:25,129 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-13 22:07:25,129 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-13 22:07:25,131 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE (24 of 25 remaining) [2022-12-13 22:07:25,131 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE (23 of 25 remaining) [2022-12-13 22:07:25,131 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (22 of 25 remaining) [2022-12-13 22:07:25,131 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (21 of 25 remaining) [2022-12-13 22:07:25,131 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (20 of 25 remaining) [2022-12-13 22:07:25,131 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 25 remaining) [2022-12-13 22:07:25,132 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 25 remaining) [2022-12-13 22:07:25,132 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 25 remaining) [2022-12-13 22:07:25,132 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (16 of 25 remaining) [2022-12-13 22:07:25,132 INFO L805 garLoopResultBuilder]: Registering result SAFE for location LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 25 remaining) [2022-12-13 22:07:25,132 INFO L805 garLoopResultBuilder]: Registering result SAFE for location LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 25 remaining) [2022-12-13 22:07:25,132 INFO L805 garLoopResultBuilder]: Registering result SAFE for location LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 25 remaining) [2022-12-13 22:07:25,132 INFO L805 garLoopResultBuilder]: Registering result SAFE for location LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 25 remaining) [2022-12-13 22:07:25,132 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_kobject_putErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 25 remaining) [2022-12-13 22:07:25,132 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_kobject_putErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 25 remaining) [2022-12-13 22:07:25,133 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_kobject_putErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 25 remaining) [2022-12-13 22:07:25,133 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_kobject_putErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 25 remaining) [2022-12-13 22:07:25,133 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_kobject_putErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 25 remaining) [2022-12-13 22:07:25,133 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_kobject_putErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 25 remaining) [2022-12-13 22:07:25,133 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_kobject_putErr6ASSERT_VIOLATIONMEMORY_FREE (5 of 25 remaining) [2022-12-13 22:07:25,133 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_kobject_putErr7ASSERT_VIOLATIONMEMORY_FREE (4 of 25 remaining) [2022-12-13 22:07:25,133 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_kobject_putErr8ASSERT_VIOLATIONMEMORY_FREE (3 of 25 remaining) [2022-12-13 22:07:25,133 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_kobject_putErr9ASSERT_VIOLATIONMEMORY_FREE (2 of 25 remaining) [2022-12-13 22:07:25,133 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_kobject_putErr10ASSERT_VIOLATIONMEMORY_FREE (1 of 25 remaining) [2022-12-13 22:07:25,134 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_kobject_putErr11ASSERT_VIOLATIONMEMORY_FREE (0 of 25 remaining) [2022-12-13 22:07:25,147 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Forceful destruction successful, exit code 0 [2022-12-13 22:07:25,345 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (36)] Ended with exit code 0 [2022-12-13 22:07:25,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt [2022-12-13 22:07:25,539 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:07:25,541 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 22:07:25,543 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 10:07:25 BoogieIcfgContainer [2022-12-13 22:07:25,543 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 22:07:25,543 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 22:07:25,543 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 22:07:25,544 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 22:07:25,544 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 10:04:58" (3/4) ... [2022-12-13 22:07:25,546 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 22:07:25,551 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_malloc [2022-12-13 22:07:25,552 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure LDV_INIT_LIST_HEAD [2022-12-13 22:07:25,552 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_kobject_put [2022-12-13 22:07:25,556 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 42 nodes and edges [2022-12-13 22:07:25,556 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-12-13 22:07:25,556 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-13 22:07:25,556 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 22:07:25,585 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 22:07:25,585 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 22:07:25,585 INFO L158 Benchmark]: Toolchain (without parser) took 147978.46ms. Allocated memory is still 102.8MB. Free memory was 77.7MB in the beginning and 30.3MB in the end (delta: 47.4MB). Peak memory consumption was 46.3MB. Max. memory is 16.1GB. [2022-12-13 22:07:25,585 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 69.2MB. Free memory was 47.9MB in the beginning and 47.8MB in the end (delta: 94.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 22:07:25,585 INFO L158 Benchmark]: CACSL2BoogieTranslator took 404.58ms. Allocated memory is still 102.8MB. Free memory was 77.3MB in the beginning and 49.8MB in the end (delta: 27.5MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-12-13 22:07:25,586 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.83ms. Allocated memory is still 102.8MB. Free memory was 49.8MB in the beginning and 47.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 22:07:25,586 INFO L158 Benchmark]: Boogie Preprocessor took 24.49ms. Allocated memory is still 102.8MB. Free memory was 47.2MB in the beginning and 44.7MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 22:07:25,586 INFO L158 Benchmark]: RCFGBuilder took 524.95ms. Allocated memory is still 102.8MB. Free memory was 44.7MB in the beginning and 60.4MB in the end (delta: -15.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-13 22:07:25,586 INFO L158 Benchmark]: TraceAbstraction took 146940.63ms. Allocated memory is still 102.8MB. Free memory was 59.3MB in the beginning and 34.8MB in the end (delta: 24.5MB). Peak memory consumption was 23.8MB. Max. memory is 16.1GB. [2022-12-13 22:07:25,586 INFO L158 Benchmark]: Witness Printer took 41.56ms. Allocated memory is still 102.8MB. Free memory was 34.8MB in the beginning and 30.3MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 22:07:25,587 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 69.2MB. Free memory was 47.9MB in the beginning and 47.8MB in the end (delta: 94.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 404.58ms. Allocated memory is still 102.8MB. Free memory was 77.3MB in the beginning and 49.8MB in the end (delta: 27.5MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.83ms. Allocated memory is still 102.8MB. Free memory was 49.8MB in the beginning and 47.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.49ms. Allocated memory is still 102.8MB. Free memory was 47.2MB in the beginning and 44.7MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 524.95ms. Allocated memory is still 102.8MB. Free memory was 44.7MB in the beginning and 60.4MB in the end (delta: -15.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 146940.63ms. Allocated memory is still 102.8MB. Free memory was 59.3MB in the beginning and 34.8MB in the end (delta: 24.5MB). Peak memory consumption was 23.8MB. Max. memory is 16.1GB. * Witness Printer took 41.56ms. Allocated memory is still 102.8MB. Free memory was 34.8MB in the beginning and 30.3MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 764]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 700]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 700]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 700]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 702]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 702]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 702]: free always succeeds For all program executions holds that free always succeeds at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 90 locations, 25 error locations. Started 1 CEGAR loops. OverallTime: 146.9s, OverallIterations: 31, TraceHistogramMax: 16, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 68.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2638 SdHoareTripleChecker+Valid, 16.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2615 mSDsluCounter, 14880 SdHoareTripleChecker+Invalid, 14.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 1028 IncrementalHoareTripleChecker+Unchecked, 12572 mSDsCounter, 241 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9557 IncrementalHoareTripleChecker+Invalid, 10826 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 241 mSolverCounterUnsat, 2308 mSDtfsCounter, 9557 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2155 GetRequests, 1527 SyntacticMatches, 18 SemanticMatches, 610 ConstructedPredicates, 17 IntricatePredicates, 4 DeprecatedPredicates, 7243 ImplicationChecksByTransitivity, 98.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=109occurred in iteration=10, InterpolantAutomatonStates: 408, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 31 MinimizatonAttempts, 316 StatesRemovedByMinimization, 19 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 6.3s SatisfiabilityAnalysisTime, 60.0s InterpolantComputationTime, 1585 NumberOfCodeBlocks, 1555 NumberOfCodeBlocksAsserted, 35 NumberOfCheckSat, 1612 ConstructedInterpolants, 186 QuantifiedInterpolants, 17905 SizeOfPredicates, 750 NumberOfNonLiveVariables, 10004 ConjunctsInSsa, 1362 ConjunctsInUnsatCore, 38 InterpolantComputations, 24 PerfectInterpolantSequences, 2417/3277 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 25 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-13 22:07:25,759 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edcfd03-8b9e-4e29-b79f-d32bca243c6b/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE