./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test6_3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22e5e71-e981-4c2e-b434-535108f19be4/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22e5e71-e981-4c2e-b434-535108f19be4/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22e5e71-e981-4c2e-b434-535108f19be4/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22e5e71-e981-4c2e-b434-535108f19be4/bin/uautomizer-UnR33cPsHg/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test6_3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22e5e71-e981-4c2e-b434-535108f19be4/bin/uautomizer-UnR33cPsHg/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22e5e71-e981-4c2e-b434-535108f19be4/bin/uautomizer-UnR33cPsHg --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 8767e0bad2c10bf5e26ce466e806335c672949ef870a6e01ac396a8c6ce00fcd ................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22e5e71-e981-4c2e-b434-535108f19be4/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22e5e71-e981-4c2e-b434-535108f19be4/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22e5e71-e981-4c2e-b434-535108f19be4/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22e5e71-e981-4c2e-b434-535108f19be4/bin/uautomizer-UnR33cPsHg/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test6_3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22e5e71-e981-4c2e-b434-535108f19be4/bin/uautomizer-UnR33cPsHg/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22e5e71-e981-4c2e-b434-535108f19be4/bin/uautomizer-UnR33cPsHg --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 8767e0bad2c10bf5e26ce466e806335c672949ef870a6e01ac396a8c6ce00fcd ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 08:46:05,638 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 08:46:05,642 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 08:46:05,699 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 08:46:05,700 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 08:46:05,703 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 08:46:05,705 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 08:46:05,707 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 08:46:05,712 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 08:46:05,719 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 08:46:05,721 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 08:46:05,725 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 08:46:05,725 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 08:46:05,729 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 08:46:05,732 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 08:46:05,735 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 08:46:05,738 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 08:46:05,739 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 08:46:05,743 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 08:46:05,754 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 08:46:05,756 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 08:46:05,758 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 08:46:05,762 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 08:46:05,764 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 08:46:05,771 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 08:46:05,772 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 08:46:05,772 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 08:46:05,773 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 08:46:05,774 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 08:46:05,776 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 08:46:05,776 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 08:46:05,778 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 08:46:05,779 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 08:46:05,780 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 08:46:05,782 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 08:46:05,782 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 08:46:05,783 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 08:46:05,784 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 08:46:05,784 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 08:46:05,785 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 08:46:05,786 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 08:46:05,787 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22e5e71-e981-4c2e-b434-535108f19be4/bin/uautomizer-UnR33cPsHg/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-10-28 08:46:05,842 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 08:46:05,842 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 08:46:05,843 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 08:46:05,844 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 08:46:05,853 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 08:46:05,854 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 08:46:05,854 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 08:46:05,854 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 08:46:05,855 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 08:46:05,855 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 08:46:05,856 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 08:46:05,857 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 08:46:05,857 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 08:46:05,857 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-28 08:46:05,857 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-28 08:46:05,858 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-28 08:46:05,858 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 08:46:05,858 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-28 08:46:05,858 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 08:46:05,859 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 08:46:05,859 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 08:46:05,859 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 08:46:05,860 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 08:46:05,860 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 08:46:05,860 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 08:46:05,861 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 08:46:05,861 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 08:46:05,861 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 08:46:05,861 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 08:46:05,863 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_b22e5e71-e981-4c2e-b434-535108f19be4/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22e5e71-e981-4c2e-b434-535108f19be4/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8767e0bad2c10bf5e26ce466e806335c672949ef870a6e01ac396a8c6ce00fcd [2021-10-28 08:46:06,250 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 08:46:06,299 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 08:46:06,303 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 08:46:06,305 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 08:46:06,307 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 08:46:06,308 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22e5e71-e981-4c2e-b434-535108f19be4/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/ldv-memsafety/memleaks_test6_3.i [2021-10-28 08:46:06,395 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22e5e71-e981-4c2e-b434-535108f19be4/bin/uautomizer-UnR33cPsHg/data/007532b1f/1665c0299b5042d58675a4cec5c879f4/FLAG9a79b0abb [2021-10-28 08:46:07,286 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 08:46:07,287 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22e5e71-e981-4c2e-b434-535108f19be4/sv-benchmarks/c/ldv-memsafety/memleaks_test6_3.i [2021-10-28 08:46:07,318 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22e5e71-e981-4c2e-b434-535108f19be4/bin/uautomizer-UnR33cPsHg/data/007532b1f/1665c0299b5042d58675a4cec5c879f4/FLAG9a79b0abb [2021-10-28 08:46:07,480 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22e5e71-e981-4c2e-b434-535108f19be4/bin/uautomizer-UnR33cPsHg/data/007532b1f/1665c0299b5042d58675a4cec5c879f4 [2021-10-28 08:46:07,484 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 08:46:07,485 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-28 08:46:07,488 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 08:46:07,488 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 08:46:07,493 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 08:46:07,494 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:46:07" (1/1) ... [2021-10-28 08:46:07,495 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b1abd70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:46:07, skipping insertion in model container [2021-10-28 08:46:07,496 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:46:07" (1/1) ... [2021-10-28 08:46:07,514 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 08:46:07,571 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 08:46:08,228 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:46:08,264 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-10-28 08:46:08,265 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1a92ec43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:46:08, skipping insertion in model container [2021-10-28 08:46:08,265 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 08:46:08,267 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-10-28 08:46:08,271 INFO L168 Benchmark]: Toolchain (without parser) took 782.68 ms. Allocated memory is still 111.1 MB. Free memory was 70.6 MB in the beginning and 81.0 MB in the end (delta: -10.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 08:46:08,272 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 111.1 MB. Free memory is still 88.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:46:08,275 INFO L168 Benchmark]: CACSL2BoogieTranslator took 779.02 ms. Allocated memory is still 111.1 MB. Free memory was 70.4 MB in the beginning and 81.0 MB in the end (delta: -10.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 08:46:08,278 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 111.1 MB. Free memory is still 88.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 779.02 ms. Allocated memory is still 111.1 MB. Free memory was 70.4 MB in the beginning and 81.0 MB in the end (delta: -10.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 576]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type 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... ### Bit-precise run ### This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 08:46:11,186 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 08:46:11,191 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 08:46:11,240 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 08:46:11,241 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 08:46:11,243 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 08:46:11,245 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 08:46:11,249 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 08:46:11,252 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 08:46:11,254 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 08:46:11,255 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 08:46:11,257 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 08:46:11,258 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 08:46:11,260 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 08:46:11,262 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 08:46:11,265 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 08:46:11,266 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 08:46:11,268 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 08:46:11,271 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 08:46:11,275 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 08:46:11,284 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 08:46:11,287 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 08:46:11,289 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 08:46:11,290 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 08:46:11,295 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 08:46:11,296 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 08:46:11,296 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 08:46:11,298 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 08:46:11,304 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 08:46:11,306 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 08:46:11,306 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 08:46:11,308 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 08:46:11,311 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 08:46:11,313 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 08:46:11,317 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 08:46:11,318 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 08:46:11,319 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 08:46:11,319 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 08:46:11,320 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 08:46:11,322 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 08:46:11,323 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 08:46:11,324 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22e5e71-e981-4c2e-b434-535108f19be4/bin/uautomizer-UnR33cPsHg/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-10-28 08:46:11,382 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 08:46:11,383 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 08:46:11,383 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 08:46:11,384 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 08:46:11,386 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 08:46:11,387 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 08:46:11,387 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 08:46:11,387 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 08:46:11,388 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 08:46:11,388 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 08:46:11,389 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 08:46:11,389 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 08:46:11,390 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 08:46:11,390 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-28 08:46:11,390 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-28 08:46:11,390 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-28 08:46:11,390 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 08:46:11,391 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-28 08:46:11,391 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-28 08:46:11,391 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-28 08:46:11,391 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 08:46:11,392 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 08:46:11,392 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 08:46:11,392 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 08:46:11,392 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 08:46:11,393 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 08:46:11,393 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 08:46:11,393 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 08:46:11,393 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-28 08:46:11,394 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-28 08:46:11,394 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 08:46:11,394 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-28 08:46:11,395 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_b22e5e71-e981-4c2e-b434-535108f19be4/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22e5e71-e981-4c2e-b434-535108f19be4/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8767e0bad2c10bf5e26ce466e806335c672949ef870a6e01ac396a8c6ce00fcd [2021-10-28 08:46:11,900 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 08:46:11,932 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 08:46:11,935 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 08:46:11,937 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 08:46:11,938 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 08:46:11,939 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22e5e71-e981-4c2e-b434-535108f19be4/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/ldv-memsafety/memleaks_test6_3.i [2021-10-28 08:46:12,021 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22e5e71-e981-4c2e-b434-535108f19be4/bin/uautomizer-UnR33cPsHg/data/ea1fa73ad/8c2c15104b8b4c79b80ac9e70975d244/FLAGbbdf5484b [2021-10-28 08:46:12,880 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 08:46:12,881 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22e5e71-e981-4c2e-b434-535108f19be4/sv-benchmarks/c/ldv-memsafety/memleaks_test6_3.i [2021-10-28 08:46:12,916 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22e5e71-e981-4c2e-b434-535108f19be4/bin/uautomizer-UnR33cPsHg/data/ea1fa73ad/8c2c15104b8b4c79b80ac9e70975d244/FLAGbbdf5484b [2021-10-28 08:46:13,017 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22e5e71-e981-4c2e-b434-535108f19be4/bin/uautomizer-UnR33cPsHg/data/ea1fa73ad/8c2c15104b8b4c79b80ac9e70975d244 [2021-10-28 08:46:13,021 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 08:46:13,024 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-28 08:46:13,027 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 08:46:13,027 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 08:46:13,033 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 08:46:13,034 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:46:13" (1/1) ... [2021-10-28 08:46:13,035 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b7070f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:46:13, skipping insertion in model container [2021-10-28 08:46:13,036 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:46:13" (1/1) ... [2021-10-28 08:46:13,044 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 08:46:13,129 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 08:46:13,822 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:46:13,856 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-28 08:46:13,877 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 08:46:13,942 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:46:13,953 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 08:46:14,065 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:46:14,154 INFO L208 MainTranslator]: Completed translation [2021-10-28 08:46:14,155 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:46:14 WrapperNode [2021-10-28 08:46:14,155 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 08:46:14,156 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 08:46:14,157 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 08:46:14,157 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 08:46:14,172 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:46:14" (1/1) ... [2021-10-28 08:46:14,172 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:46:14" (1/1) ... [2021-10-28 08:46:14,202 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:46:14" (1/1) ... [2021-10-28 08:46:14,202 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:46:14" (1/1) ... [2021-10-28 08:46:14,262 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:46:14" (1/1) ... [2021-10-28 08:46:14,269 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:46:14" (1/1) ... [2021-10-28 08:46:14,294 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:46:14" (1/1) ... [2021-10-28 08:46:14,325 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 08:46:14,326 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 08:46:14,327 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 08:46:14,327 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 08:46:14,328 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:46:14" (1/1) ... [2021-10-28 08:46:14,350 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 08:46:14,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22e5e71-e981-4c2e-b434-535108f19be4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:46:14,384 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22e5e71-e981-4c2e-b434-535108f19be4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 08:46:14,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22e5e71-e981-4c2e-b434-535108f19be4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 08:46:14,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-10-28 08:46:14,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 08:46:14,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-10-28 08:46:14,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-10-28 08:46:14,459 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-10-28 08:46:14,462 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-10-28 08:46:14,462 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-10-28 08:46:14,463 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-10-28 08:46:14,463 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-10-28 08:46:14,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2021-10-28 08:46:14,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2021-10-28 08:46:14,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-10-28 08:46:14,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-10-28 08:46:14,464 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2021-10-28 08:46:14,465 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2021-10-28 08:46:14,465 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2021-10-28 08:46:14,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2021-10-28 08:46:14,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2021-10-28 08:46:14,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2021-10-28 08:46:14,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2021-10-28 08:46:14,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2021-10-28 08:46:14,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2021-10-28 08:46:14,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2021-10-28 08:46:14,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2021-10-28 08:46:14,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-10-28 08:46:14,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-10-28 08:46:14,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2021-10-28 08:46:14,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2021-10-28 08:46:14,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2021-10-28 08:46:14,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2021-10-28 08:46:14,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2021-10-28 08:46:14,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2021-10-28 08:46:14,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2021-10-28 08:46:14,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2021-10-28 08:46:14,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2021-10-28 08:46:14,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2021-10-28 08:46:14,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2021-10-28 08:46:14,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2021-10-28 08:46:14,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2021-10-28 08:46:14,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2021-10-28 08:46:14,469 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-10-28 08:46:14,470 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2021-10-28 08:46:14,470 INFO L138 BoogieDeclarations]: Found implementation of procedure f6 [2021-10-28 08:46:14,470 INFO L138 BoogieDeclarations]: Found implementation of procedure g6 [2021-10-28 08:46:14,471 INFO L138 BoogieDeclarations]: Found implementation of procedure probe1_6 [2021-10-28 08:46:14,471 INFO L138 BoogieDeclarations]: Found implementation of procedure disconnect_2_6 [2021-10-28 08:46:14,471 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2021-10-28 08:46:14,472 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-10-28 08:46:14,473 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-10-28 08:46:14,473 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-10-28 08:46:14,473 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-10-28 08:46:14,473 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-10-28 08:46:14,474 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-10-28 08:46:14,474 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-10-28 08:46:14,474 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-10-28 08:46:14,474 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-10-28 08:46:14,474 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-10-28 08:46:14,475 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-10-28 08:46:14,475 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-10-28 08:46:14,476 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-10-28 08:46:14,476 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-10-28 08:46:14,476 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-10-28 08:46:14,478 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-10-28 08:46:14,478 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-10-28 08:46:14,479 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-10-28 08:46:14,479 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-10-28 08:46:14,479 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-10-28 08:46:14,479 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-10-28 08:46:14,480 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-10-28 08:46:14,480 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-10-28 08:46:14,480 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-10-28 08:46:14,480 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-10-28 08:46:14,480 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-10-28 08:46:14,481 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-10-28 08:46:14,481 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-10-28 08:46:14,481 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-10-28 08:46:14,481 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-10-28 08:46:14,481 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-10-28 08:46:14,481 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-10-28 08:46:14,482 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-10-28 08:46:14,482 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-10-28 08:46:14,482 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-10-28 08:46:14,483 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-10-28 08:46:14,484 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-10-28 08:46:14,484 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-10-28 08:46:14,484 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-10-28 08:46:14,484 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-10-28 08:46:14,484 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-10-28 08:46:14,485 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-10-28 08:46:14,485 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-10-28 08:46:14,485 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-10-28 08:46:14,485 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-10-28 08:46:14,485 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-10-28 08:46:14,485 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-10-28 08:46:14,486 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-10-28 08:46:14,486 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-10-28 08:46:14,486 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-10-28 08:46:14,486 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-10-28 08:46:14,486 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-10-28 08:46:14,487 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-10-28 08:46:14,487 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-10-28 08:46:14,487 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-10-28 08:46:14,488 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-10-28 08:46:14,488 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-10-28 08:46:14,488 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-10-28 08:46:14,488 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-10-28 08:46:14,488 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-10-28 08:46:14,488 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-10-28 08:46:14,489 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-10-28 08:46:14,489 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-10-28 08:46:14,489 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-10-28 08:46:14,489 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-10-28 08:46:14,489 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-10-28 08:46:14,489 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-10-28 08:46:14,490 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-10-28 08:46:14,490 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-10-28 08:46:14,490 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-10-28 08:46:14,490 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-10-28 08:46:14,490 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-10-28 08:46:14,491 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-10-28 08:46:14,491 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-10-28 08:46:14,492 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-10-28 08:46:14,492 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-10-28 08:46:14,493 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-10-28 08:46:14,496 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-10-28 08:46:14,497 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-10-28 08:46:14,497 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-10-28 08:46:14,497 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-10-28 08:46:14,498 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-10-28 08:46:14,500 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-10-28 08:46:14,500 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-10-28 08:46:14,501 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-10-28 08:46:14,502 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-10-28 08:46:14,506 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-10-28 08:46:14,507 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-10-28 08:46:14,507 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-10-28 08:46:14,507 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-10-28 08:46:14,507 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-10-28 08:46:14,507 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-10-28 08:46:14,507 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-10-28 08:46:14,508 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-10-28 08:46:14,508 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-10-28 08:46:14,508 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-10-28 08:46:14,508 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-10-28 08:46:14,508 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-10-28 08:46:14,508 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-10-28 08:46:14,508 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-10-28 08:46:14,509 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-10-28 08:46:14,509 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-10-28 08:46:14,509 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-10-28 08:46:14,509 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-10-28 08:46:14,509 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-10-28 08:46:14,509 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-10-28 08:46:14,510 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-10-28 08:46:14,510 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-10-28 08:46:14,510 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-10-28 08:46:14,510 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-10-28 08:46:14,510 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-10-28 08:46:14,510 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-10-28 08:46:14,510 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-10-28 08:46:14,510 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2021-10-28 08:46:14,511 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2021-10-28 08:46:14,511 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-10-28 08:46:14,511 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-10-28 08:46:14,511 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-10-28 08:46:14,511 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-28 08:46:14,511 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-10-28 08:46:14,511 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-10-28 08:46:14,512 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2021-10-28 08:46:14,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-28 08:46:14,512 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2021-10-28 08:46:14,512 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2021-10-28 08:46:14,512 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2021-10-28 08:46:14,512 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-28 08:46:14,513 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2021-10-28 08:46:14,513 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2021-10-28 08:46:14,513 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2021-10-28 08:46:14,513 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2021-10-28 08:46:14,513 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-10-28 08:46:14,513 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2021-10-28 08:46:14,513 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 08:46:14,514 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2021-10-28 08:46:14,514 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2021-10-28 08:46:14,514 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-10-28 08:46:14,514 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-10-28 08:46:14,514 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2021-10-28 08:46:14,514 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-28 08:46:14,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-28 08:46:14,515 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2021-10-28 08:46:14,515 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2021-10-28 08:46:14,515 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-10-28 08:46:14,515 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2021-10-28 08:46:14,515 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2021-10-28 08:46:14,515 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2021-10-28 08:46:14,515 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2021-10-28 08:46:14,516 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2021-10-28 08:46:14,516 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2021-10-28 08:46:14,516 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2021-10-28 08:46:14,516 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2021-10-28 08:46:14,516 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2021-10-28 08:46:14,516 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2021-10-28 08:46:14,516 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2021-10-28 08:46:14,516 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-10-28 08:46:14,517 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-10-28 08:46:14,517 INFO L130 BoogieDeclarations]: Found specification of procedure g [2021-10-28 08:46:14,517 INFO L130 BoogieDeclarations]: Found specification of procedure f6 [2021-10-28 08:46:14,517 INFO L130 BoogieDeclarations]: Found specification of procedure g6 [2021-10-28 08:46:14,517 INFO L130 BoogieDeclarations]: Found specification of procedure probe1_6 [2021-10-28 08:46:14,517 INFO L130 BoogieDeclarations]: Found specification of procedure disconnect_2_6 [2021-10-28 08:46:14,517 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2021-10-28 08:46:14,518 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-10-28 08:46:14,518 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-10-28 08:46:14,518 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 08:46:14,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-28 08:46:14,519 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 08:46:14,520 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-10-28 08:46:14,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-10-28 08:46:14,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-10-28 08:46:14,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-10-28 08:46:14,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-10-28 08:46:15,294 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 08:46:15,848 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 08:46:16,325 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 08:46:16,326 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-10-28 08:46:16,329 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:46:16 BoogieIcfgContainer [2021-10-28 08:46:16,330 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 08:46:16,332 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 08:46:16,332 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 08:46:16,336 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 08:46:16,336 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 08:46:13" (1/3) ... [2021-10-28 08:46:16,337 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ecfca29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 08:46:16, skipping insertion in model container [2021-10-28 08:46:16,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:46:14" (2/3) ... [2021-10-28 08:46:16,337 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ecfca29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 08:46:16, skipping insertion in model container [2021-10-28 08:46:16,338 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:46:16" (3/3) ... [2021-10-28 08:46:16,339 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test6_3.i [2021-10-28 08:46:16,346 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 08:46:16,346 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 78 error locations. [2021-10-28 08:46:16,413 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 08:46:16,422 INFO L339 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=FINITE_AUTOMATA, 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, mLoopAccelerationTechnique=FAST_UPR [2021-10-28 08:46:16,423 INFO L340 AbstractCegarLoop]: Starting to check reachability of 78 error locations. [2021-10-28 08:46:16,448 INFO L276 IsEmpty]: Start isEmpty. Operand has 125 states, 70 states have (on average 1.5) internal successors, (105), 96 states have internal predecessors, (105), 15 states have call successors, (15), 14 states have call predecessors, (15), 14 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2021-10-28 08:46:16,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-28 08:46:16,468 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:46:16,470 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:46:16,470 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting entry_pointErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 74 more)] === [2021-10-28 08:46:16,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:46:16,479 INFO L85 PathProgramCache]: Analyzing trace with hash 24886788, now seen corresponding path program 1 times [2021-10-28 08:46:16,491 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 08:46:16,492 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [173666940] [2021-10-28 08:46:16,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:46:16,493 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 08:46:16,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22e5e71-e981-4c2e-b434-535108f19be4/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 08:46:16,497 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22e5e71-e981-4c2e-b434-535108f19be4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 08:46:16,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22e5e71-e981-4c2e-b434-535108f19be4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-28 08:46:16,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:46:16,783 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 08:46:16,789 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:46:16,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:46:16,989 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 08:46:17,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:46:17,175 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 08:46:17,179 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [173666940] [2021-10-28 08:46:17,180 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [173666940] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 08:46:17,181 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:46:17,181 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-28 08:46:17,183 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542675907] [2021-10-28 08:46:17,189 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 08:46:17,190 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 08:46:17,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 08:46:17,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 08:46:17,214 INFO L87 Difference]: Start difference. First operand has 125 states, 70 states have (on average 1.5) internal successors, (105), 96 states have internal predecessors, (105), 15 states have call successors, (15), 14 states have call predecessors, (15), 14 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 08:46:17,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:46:17,335 INFO L93 Difference]: Finished difference Result 76 states and 85 transitions. [2021-10-28 08:46:17,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 08:46:17,338 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 20 [2021-10-28 08:46:17,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:46:17,363 INFO L225 Difference]: With dead ends: 76 [2021-10-28 08:46:17,363 INFO L226 Difference]: Without dead ends: 73 [2021-10-28 08:46:17,365 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 08:46:17,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2021-10-28 08:46:17,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 56. [2021-10-28 08:46:17,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 32 states have (on average 1.375) internal successors, (44), 40 states have internal predecessors, (44), 8 states have call successors, (8), 8 states have call predecessors, (8), 8 states have return successors, (8), 8 states have call predecessors, (8), 7 states have call successors, (8) [2021-10-28 08:46:17,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 60 transitions. [2021-10-28 08:46:17,426 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 60 transitions. Word has length 20 [2021-10-28 08:46:17,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:46:17,426 INFO L470 AbstractCegarLoop]: Abstraction has 56 states and 60 transitions. [2021-10-28 08:46:17,427 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 08:46:17,427 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 60 transitions. [2021-10-28 08:46:17,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-28 08:46:17,429 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:46:17,429 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:46:17,451 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22e5e71-e981-4c2e-b434-535108f19be4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-10-28 08:46:17,647 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22e5e71-e981-4c2e-b434-535108f19be4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 08:46:17,647 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting entry_pointErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 74 more)] === [2021-10-28 08:46:17,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:46:17,648 INFO L85 PathProgramCache]: Analyzing trace with hash -171626717, now seen corresponding path program 1 times [2021-10-28 08:46:17,649 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 08:46:17,649 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [411414110] [2021-10-28 08:46:17,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:46:17,650 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 08:46:17,650 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22e5e71-e981-4c2e-b434-535108f19be4/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 08:46:17,651 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22e5e71-e981-4c2e-b434-535108f19be4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 08:46:17,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22e5e71-e981-4c2e-b434-535108f19be4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-28 08:46:17,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:46:17,880 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-28 08:46:17,883 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:46:17,973 INFO L354 Elim1Store]: treesize reduction 34, result has 38.2 percent of original size [2021-10-28 08:46:17,975 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 26 [2021-10-28 08:46:18,155 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2021-10-28 08:46:18,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:46:18,238 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 08:46:18,476 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2021-10-28 08:46:18,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:46:18,609 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 08:46:18,609 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [411414110] [2021-10-28 08:46:18,609 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [411414110] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 08:46:18,610 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:46:18,610 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-28 08:46:18,610 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135611913] [2021-10-28 08:46:18,614 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 08:46:18,614 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 08:46:18,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 08:46:18,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-28 08:46:18,618 INFO L87 Difference]: Start difference. First operand 56 states and 60 transitions. Second operand has 5 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 4 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2021-10-28 08:46:18,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:46:18,849 INFO L93 Difference]: Finished difference Result 92 states and 102 transitions. [2021-10-28 08:46:18,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 08:46:18,850 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 4 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) Word has length 20 [2021-10-28 08:46:18,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:46:18,853 INFO L225 Difference]: With dead ends: 92 [2021-10-28 08:46:18,853 INFO L226 Difference]: Without dead ends: 89 [2021-10-28 08:46:18,854 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 30 SyntacticMatches, 6 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-10-28 08:46:18,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2021-10-28 08:46:18,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 79. [2021-10-28 08:46:18,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 48 states have (on average 1.3958333333333333) internal successors, (67), 58 states have internal predecessors, (67), 12 states have call successors, (12), 9 states have call predecessors, (12), 11 states have return successors, (14), 14 states have call predecessors, (14), 11 states have call successors, (14) [2021-10-28 08:46:18,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 93 transitions. [2021-10-28 08:46:18,868 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 93 transitions. Word has length 20 [2021-10-28 08:46:18,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:46:18,869 INFO L470 AbstractCegarLoop]: Abstraction has 79 states and 93 transitions. [2021-10-28 08:46:18,869 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 4 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2021-10-28 08:46:18,869 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 93 transitions. [2021-10-28 08:46:18,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-28 08:46:18,876 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:46:18,876 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:46:18,893 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22e5e71-e981-4c2e-b434-535108f19be4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-28 08:46:19,091 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22e5e71-e981-4c2e-b434-535108f19be4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 08:46:19,092 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting entry_pointErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 74 more)] === [2021-10-28 08:46:19,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:46:19,093 INFO L85 PathProgramCache]: Analyzing trace with hash -171626716, now seen corresponding path program 1 times [2021-10-28 08:46:19,093 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 08:46:19,094 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [100648563] [2021-10-28 08:46:19,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:46:19,095 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 08:46:19,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22e5e71-e981-4c2e-b434-535108f19be4/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 08:46:19,096 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22e5e71-e981-4c2e-b434-535108f19be4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 08:46:19,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22e5e71-e981-4c2e-b434-535108f19be4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-28 08:46:19,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:46:19,366 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-28 08:46:19,368 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:46:19,414 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-10-28 08:46:19,415 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2021-10-28 08:46:19,521 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-10-28 08:46:19,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:46:19,671 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 08:46:20,139 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2021-10-28 08:46:20,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:46:20,457 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 08:46:20,457 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [100648563] [2021-10-28 08:46:20,457 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [100648563] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 08:46:20,457 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:46:20,458 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-10-28 08:46:20,458 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132545133] [2021-10-28 08:46:20,459 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 08:46:20,459 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 08:46:20,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 08:46:20,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-28 08:46:20,460 INFO L87 Difference]: Start difference. First operand 79 states and 93 transitions. Second operand has 6 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 5 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2021-10-28 08:46:20,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:46:20,752 INFO L93 Difference]: Finished difference Result 110 states and 118 transitions. [2021-10-28 08:46:20,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 08:46:20,754 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 5 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) Word has length 20 [2021-10-28 08:46:20,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:46:20,756 INFO L225 Difference]: With dead ends: 110 [2021-10-28 08:46:20,756 INFO L226 Difference]: Without dead ends: 100 [2021-10-28 08:46:20,756 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2021-10-28 08:46:20,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2021-10-28 08:46:20,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 90. [2021-10-28 08:46:20,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 56 states have (on average 1.375) internal successors, (77), 66 states have internal predecessors, (77), 12 states have call successors, (12), 12 states have call predecessors, (12), 14 states have return successors, (14), 14 states have call predecessors, (14), 11 states have call successors, (14) [2021-10-28 08:46:20,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 103 transitions. [2021-10-28 08:46:20,768 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 103 transitions. Word has length 20 [2021-10-28 08:46:20,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:46:20,769 INFO L470 AbstractCegarLoop]: Abstraction has 90 states and 103 transitions. [2021-10-28 08:46:20,769 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 5 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2021-10-28 08:46:20,769 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 103 transitions. [2021-10-28 08:46:20,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-28 08:46:20,770 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:46:20,771 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:46:20,791 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22e5e71-e981-4c2e-b434-535108f19be4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-28 08:46:20,971 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22e5e71-e981-4c2e-b434-535108f19be4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 08:46:20,972 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting probe1_6Err2ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 74 more)] === [2021-10-28 08:46:20,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:46:20,972 INFO L85 PathProgramCache]: Analyzing trace with hash 2076107592, now seen corresponding path program 1 times [2021-10-28 08:46:20,973 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 08:46:20,973 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [214045756] [2021-10-28 08:46:20,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:46:20,973 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 08:46:20,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22e5e71-e981-4c2e-b434-535108f19be4/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 08:46:20,975 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22e5e71-e981-4c2e-b434-535108f19be4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 08:46:20,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22e5e71-e981-4c2e-b434-535108f19be4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-28 08:46:21,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:46:21,234 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 08:46:21,236 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:46:21,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:46:21,334 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 08:46:21,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:46:21,442 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 08:46:21,442 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [214045756] [2021-10-28 08:46:21,442 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [214045756] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 08:46:21,443 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:46:21,443 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-10-28 08:46:21,443 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545270291] [2021-10-28 08:46:21,444 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 08:46:21,444 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 08:46:21,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 08:46:21,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 08:46:21,446 INFO L87 Difference]: Start difference. First operand 90 states and 103 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-10-28 08:46:21,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:46:21,474 INFO L93 Difference]: Finished difference Result 89 states and 101 transitions. [2021-10-28 08:46:21,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 08:46:21,476 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 22 [2021-10-28 08:46:21,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:46:21,478 INFO L225 Difference]: With dead ends: 89 [2021-10-28 08:46:21,478 INFO L226 Difference]: Without dead ends: 89 [2021-10-28 08:46:21,479 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 08:46:21,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2021-10-28 08:46:21,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2021-10-28 08:46:21,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 56 states have (on average 1.3392857142857142) internal successors, (75), 65 states have internal predecessors, (75), 12 states have call successors, (12), 12 states have call predecessors, (12), 14 states have return successors, (14), 14 states have call predecessors, (14), 11 states have call successors, (14) [2021-10-28 08:46:21,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 101 transitions. [2021-10-28 08:46:21,506 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 101 transitions. Word has length 22 [2021-10-28 08:46:21,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:46:21,507 INFO L470 AbstractCegarLoop]: Abstraction has 89 states and 101 transitions. [2021-10-28 08:46:21,507 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-10-28 08:46:21,507 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 101 transitions. [2021-10-28 08:46:21,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-28 08:46:21,509 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:46:21,509 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:46:21,531 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22e5e71-e981-4c2e-b434-535108f19be4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-28 08:46:21,723 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22e5e71-e981-4c2e-b434-535108f19be4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 08:46:21,723 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting probe1_6Err3ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 74 more)] === [2021-10-28 08:46:21,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:46:21,724 INFO L85 PathProgramCache]: Analyzing trace with hash -65173633, now seen corresponding path program 1 times [2021-10-28 08:46:21,724 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 08:46:21,725 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1990060445] [2021-10-28 08:46:21,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:46:21,725 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 08:46:21,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22e5e71-e981-4c2e-b434-535108f19be4/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 08:46:21,727 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22e5e71-e981-4c2e-b434-535108f19be4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 08:46:21,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22e5e71-e981-4c2e-b434-535108f19be4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-28 08:46:22,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:46:22,032 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 08:46:22,035 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:46:22,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:46:22,400 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 08:46:22,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:46:22,589 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 08:46:22,589 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1990060445] [2021-10-28 08:46:22,589 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1990060445] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 08:46:22,589 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:46:22,589 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 4] imperfect sequences [] total 9 [2021-10-28 08:46:22,590 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26707318] [2021-10-28 08:46:22,590 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 08:46:22,590 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 08:46:22,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 08:46:22,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-10-28 08:46:22,591 INFO L87 Difference]: Start difference. First operand 89 states and 101 transitions. Second operand has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 8 states have internal predecessors, (28), 4 states have call successors, (11), 3 states have call predecessors, (11), 5 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2021-10-28 08:46:22,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:46:22,899 INFO L93 Difference]: Finished difference Result 95 states and 102 transitions. [2021-10-28 08:46:22,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 08:46:22,900 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 8 states have internal predecessors, (28), 4 states have call successors, (11), 3 states have call predecessors, (11), 5 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) Word has length 23 [2021-10-28 08:46:22,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:46:22,901 INFO L225 Difference]: With dead ends: 95 [2021-10-28 08:46:22,902 INFO L226 Difference]: Without dead ends: 95 [2021-10-28 08:46:22,902 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-10-28 08:46:22,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2021-10-28 08:46:22,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 88. [2021-10-28 08:46:22,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 56 states have (on average 1.3035714285714286) internal successors, (73), 64 states have internal predecessors, (73), 12 states have call successors, (12), 12 states have call predecessors, (12), 14 states have return successors, (14), 14 states have call predecessors, (14), 11 states have call successors, (14) [2021-10-28 08:46:22,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 99 transitions. [2021-10-28 08:46:22,911 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 99 transitions. Word has length 23 [2021-10-28 08:46:22,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:46:22,911 INFO L470 AbstractCegarLoop]: Abstraction has 88 states and 99 transitions. [2021-10-28 08:46:22,912 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 8 states have internal predecessors, (28), 4 states have call successors, (11), 3 states have call predecessors, (11), 5 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2021-10-28 08:46:22,912 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 99 transitions. [2021-10-28 08:46:22,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-28 08:46:22,913 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:46:22,913 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:46:22,931 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22e5e71-e981-4c2e-b434-535108f19be4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-28 08:46:23,128 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22e5e71-e981-4c2e-b434-535108f19be4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 08:46:23,131 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting probe1_6Err4ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 74 more)] === [2021-10-28 08:46:23,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:46:23,132 INFO L85 PathProgramCache]: Analyzing trace with hash -2020382166, now seen corresponding path program 1 times [2021-10-28 08:46:23,132 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 08:46:23,132 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1620175824] [2021-10-28 08:46:23,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:46:23,133 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 08:46:23,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22e5e71-e981-4c2e-b434-535108f19be4/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 08:46:23,136 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22e5e71-e981-4c2e-b434-535108f19be4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 08:46:23,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22e5e71-e981-4c2e-b434-535108f19be4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-28 08:46:23,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:46:23,428 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 08:46:23,430 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:46:23,469 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-10-28 08:46:23,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:46:23,599 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 08:46:23,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:46:23,719 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 08:46:23,719 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1620175824] [2021-10-28 08:46:23,720 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1620175824] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 08:46:23,720 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:46:23,720 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [] total 5 [2021-10-28 08:46:23,720 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220798099] [2021-10-28 08:46:23,721 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 08:46:23,721 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 08:46:23,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 08:46:23,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-28 08:46:23,723 INFO L87 Difference]: Start difference. First operand 88 states and 99 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-10-28 08:46:23,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:46:23,929 INFO L93 Difference]: Finished difference Result 91 states and 98 transitions. [2021-10-28 08:46:23,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 08:46:23,930 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 24 [2021-10-28 08:46:23,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:46:23,931 INFO L225 Difference]: With dead ends: 91 [2021-10-28 08:46:23,931 INFO L226 Difference]: Without dead ends: 91 [2021-10-28 08:46:23,932 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 41 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-28 08:46:23,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2021-10-28 08:46:23,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 88. [2021-10-28 08:46:23,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 56 states have (on average 1.2857142857142858) internal successors, (72), 64 states have internal predecessors, (72), 12 states have call successors, (12), 12 states have call predecessors, (12), 14 states have return successors, (14), 14 states have call predecessors, (14), 11 states have call successors, (14) [2021-10-28 08:46:23,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 98 transitions. [2021-10-28 08:46:23,941 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 98 transitions. Word has length 24 [2021-10-28 08:46:23,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:46:23,942 INFO L470 AbstractCegarLoop]: Abstraction has 88 states and 98 transitions. [2021-10-28 08:46:23,942 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-10-28 08:46:23,942 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 98 transitions. [2021-10-28 08:46:23,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-28 08:46:23,944 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:46:23,944 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:46:23,964 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22e5e71-e981-4c2e-b434-535108f19be4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-28 08:46:24,164 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22e5e71-e981-4c2e-b434-535108f19be4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 08:46:24,165 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting probe1_6Err4ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 74 more)] === [2021-10-28 08:46:24,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:46:24,167 INFO L85 PathProgramCache]: Analyzing trace with hash 1769026505, now seen corresponding path program 1 times [2021-10-28 08:46:24,167 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 08:46:24,168 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1265150106] [2021-10-28 08:46:24,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:46:24,168 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 08:46:24,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22e5e71-e981-4c2e-b434-535108f19be4/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 08:46:24,169 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22e5e71-e981-4c2e-b434-535108f19be4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 08:46:24,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22e5e71-e981-4c2e-b434-535108f19be4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-28 08:46:24,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:46:24,425 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-28 08:46:24,427 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:46:24,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:46:24,570 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 08:46:24,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:46:24,718 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 08:46:24,718 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1265150106] [2021-10-28 08:46:24,719 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1265150106] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 08:46:24,719 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:46:24,719 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-28 08:46:24,719 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545204575] [2021-10-28 08:46:24,720 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 08:46:24,720 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 08:46:24,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 08:46:24,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 08:46:24,721 INFO L87 Difference]: Start difference. First operand 88 states and 98 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-10-28 08:46:24,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:46:24,747 INFO L93 Difference]: Finished difference Result 62 states and 66 transitions. [2021-10-28 08:46:24,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 08:46:24,748 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 24 [2021-10-28 08:46:24,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:46:24,749 INFO L225 Difference]: With dead ends: 62 [2021-10-28 08:46:24,750 INFO L226 Difference]: Without dead ends: 58 [2021-10-28 08:46:24,750 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 08:46:24,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2021-10-28 08:46:24,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2021-10-28 08:46:24,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 35 states have (on average 1.2571428571428571) internal successors, (44), 41 states have internal predecessors, (44), 9 states have call successors, (9), 9 states have call predecessors, (9), 9 states have return successors, (9), 9 states have call predecessors, (9), 8 states have call successors, (9) [2021-10-28 08:46:24,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 62 transitions. [2021-10-28 08:46:24,756 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 62 transitions. Word has length 24 [2021-10-28 08:46:24,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:46:24,757 INFO L470 AbstractCegarLoop]: Abstraction has 58 states and 62 transitions. [2021-10-28 08:46:24,757 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-10-28 08:46:24,757 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 62 transitions. [2021-10-28 08:46:24,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-28 08:46:24,758 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:46:24,759 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:46:24,777 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22e5e71-e981-4c2e-b434-535108f19be4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-28 08:46:24,973 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22e5e71-e981-4c2e-b434-535108f19be4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 08:46:24,973 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting probe1_6Err0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 74 more)] === [2021-10-28 08:46:24,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:46:24,974 INFO L85 PathProgramCache]: Analyzing trace with hash -292940866, now seen corresponding path program 1 times [2021-10-28 08:46:24,974 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 08:46:24,975 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [51121301] [2021-10-28 08:46:24,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:46:24,975 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 08:46:24,975 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22e5e71-e981-4c2e-b434-535108f19be4/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 08:46:24,976 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22e5e71-e981-4c2e-b434-535108f19be4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 08:46:24,978 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22e5e71-e981-4c2e-b434-535108f19be4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-28 08:46:25,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:46:25,298 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-28 08:46:25,301 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:46:25,365 INFO L354 Elim1Store]: treesize reduction 34, result has 38.2 percent of original size [2021-10-28 08:46:25,365 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 26 [2021-10-28 08:46:25,589 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-10-28 08:46:25,589 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 20 [2021-10-28 08:46:25,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:46:25,786 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 08:46:26,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:46:26,110 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 08:46:26,110 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [51121301] [2021-10-28 08:46:26,110 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [51121301] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 08:46:26,110 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:46:26,110 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 5] imperfect sequences [] total 8 [2021-10-28 08:46:26,111 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383230984] [2021-10-28 08:46:26,111 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-28 08:46:26,112 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 08:46:26,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-28 08:46:26,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-10-28 08:46:26,113 INFO L87 Difference]: Start difference. First operand 58 states and 62 transitions. Second operand has 9 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 3 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-10-28 08:46:26,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:46:26,627 INFO L93 Difference]: Finished difference Result 62 states and 64 transitions. [2021-10-28 08:46:26,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 08:46:26,628 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 3 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 28 [2021-10-28 08:46:26,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:46:26,629 INFO L225 Difference]: With dead ends: 62 [2021-10-28 08:46:26,629 INFO L226 Difference]: Without dead ends: 62 [2021-10-28 08:46:26,629 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 39 SyntacticMatches, 10 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2021-10-28 08:46:26,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2021-10-28 08:46:26,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 57. [2021-10-28 08:46:26,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 35 states have (on average 1.2285714285714286) internal successors, (43), 40 states have internal predecessors, (43), 9 states have call successors, (9), 9 states have call predecessors, (9), 9 states have return successors, (9), 9 states have call predecessors, (9), 8 states have call successors, (9) [2021-10-28 08:46:26,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 61 transitions. [2021-10-28 08:46:26,634 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 61 transitions. Word has length 28 [2021-10-28 08:46:26,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:46:26,634 INFO L470 AbstractCegarLoop]: Abstraction has 57 states and 61 transitions. [2021-10-28 08:46:26,635 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 3 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-10-28 08:46:26,635 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 61 transitions. [2021-10-28 08:46:26,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-28 08:46:26,636 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:46:26,636 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:46:26,656 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22e5e71-e981-4c2e-b434-535108f19be4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-28 08:46:26,843 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22e5e71-e981-4c2e-b434-535108f19be4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 08:46:26,843 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting probe1_6Err1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 74 more)] === [2021-10-28 08:46:26,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:46:26,844 INFO L85 PathProgramCache]: Analyzing trace with hash -292940865, now seen corresponding path program 1 times [2021-10-28 08:46:26,844 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 08:46:26,844 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1635973044] [2021-10-28 08:46:26,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:46:26,844 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 08:46:26,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22e5e71-e981-4c2e-b434-535108f19be4/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 08:46:26,846 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22e5e71-e981-4c2e-b434-535108f19be4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 08:46:26,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22e5e71-e981-4c2e-b434-535108f19be4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-28 08:46:27,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:46:27,151 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-28 08:46:27,154 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:46:27,189 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-10-28 08:46:27,190 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2021-10-28 08:46:31,479 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-10-28 08:46:31,480 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2021-10-28 08:46:31,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:46:31,861 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 08:46:35,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:46:35,064 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 08:46:35,064 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1635973044] [2021-10-28 08:46:35,064 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1635973044] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 08:46:35,064 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:46:35,064 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 7] imperfect sequences [] total 14 [2021-10-28 08:46:35,065 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714995008] [2021-10-28 08:46:35,065 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-10-28 08:46:35,065 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 08:46:35,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-28 08:46:35,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=167, Unknown=2, NotChecked=0, Total=210 [2021-10-28 08:46:35,067 INFO L87 Difference]: Start difference. First operand 57 states and 61 transitions. Second operand has 15 states, 13 states have (on average 2.6153846153846154) internal successors, (34), 12 states have internal predecessors, (34), 6 states have call successors, (13), 8 states have call predecessors, (13), 6 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2021-10-28 08:46:42,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:46:42,126 INFO L93 Difference]: Finished difference Result 55 states and 58 transitions. [2021-10-28 08:46:42,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-28 08:46:42,128 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 2.6153846153846154) internal successors, (34), 12 states have internal predecessors, (34), 6 states have call successors, (13), 8 states have call predecessors, (13), 6 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 28 [2021-10-28 08:46:42,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:46:42,128 INFO L225 Difference]: With dead ends: 55 [2021-10-28 08:46:42,129 INFO L226 Difference]: Without dead ends: 55 [2021-10-28 08:46:42,130 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 38 SyntacticMatches, 5 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=123, Invalid=381, Unknown=2, NotChecked=0, Total=506 [2021-10-28 08:46:42,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2021-10-28 08:46:42,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2021-10-28 08:46:42,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 35 states have (on average 1.1428571428571428) internal successors, (40), 38 states have internal predecessors, (40), 9 states have call successors, (9), 9 states have call predecessors, (9), 9 states have return successors, (9), 9 states have call predecessors, (9), 8 states have call successors, (9) [2021-10-28 08:46:42,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 58 transitions. [2021-10-28 08:46:42,135 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 58 transitions. Word has length 28 [2021-10-28 08:46:42,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:46:42,135 INFO L470 AbstractCegarLoop]: Abstraction has 55 states and 58 transitions. [2021-10-28 08:46:42,136 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 2.6153846153846154) internal successors, (34), 12 states have internal predecessors, (34), 6 states have call successors, (13), 8 states have call predecessors, (13), 6 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2021-10-28 08:46:42,136 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 58 transitions. [2021-10-28 08:46:42,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-10-28 08:46:42,137 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:46:42,138 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:46:42,164 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22e5e71-e981-4c2e-b434-535108f19be4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-28 08:46:42,352 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22e5e71-e981-4c2e-b434-535108f19be4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 08:46:42,353 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting entry_pointErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 74 more)] === [2021-10-28 08:46:42,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:46:42,353 INFO L85 PathProgramCache]: Analyzing trace with hash 2144040275, now seen corresponding path program 1 times [2021-10-28 08:46:42,353 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 08:46:42,354 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2118441593] [2021-10-28 08:46:42,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:46:42,354 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 08:46:42,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22e5e71-e981-4c2e-b434-535108f19be4/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 08:46:42,355 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22e5e71-e981-4c2e-b434-535108f19be4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 08:46:42,361 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22e5e71-e981-4c2e-b434-535108f19be4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-28 08:46:42,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:46:42,690 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-28 08:46:42,692 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:46:42,779 INFO L354 Elim1Store]: treesize reduction 34, result has 38.2 percent of original size [2021-10-28 08:46:42,780 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 26 [2021-10-28 08:46:42,908 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2021-10-28 08:46:43,106 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 18 treesize of output 15 [2021-10-28 08:46:43,369 INFO L354 Elim1Store]: treesize reduction 20, result has 28.6 percent of original size [2021-10-28 08:46:43,370 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 25 treesize of output 28 [2021-10-28 08:46:43,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:46:43,465 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 08:46:44,112 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2021-10-28 08:46:44,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:46:44,338 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 08:46:44,338 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2118441593] [2021-10-28 08:46:44,338 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2118441593] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 08:46:44,338 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:46:44,338 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 6] imperfect sequences [] total 13 [2021-10-28 08:46:44,338 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981120648] [2021-10-28 08:46:44,339 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-28 08:46:44,339 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 08:46:44,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-28 08:46:44,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2021-10-28 08:46:44,341 INFO L87 Difference]: Start difference. First operand 55 states and 58 transitions. Second operand has 14 states, 13 states have (on average 2.769230769230769) internal successors, (36), 12 states have internal predecessors, (36), 6 states have call successors, (9), 5 states have call predecessors, (9), 7 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2021-10-28 08:48:01,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:48:01,216 INFO L93 Difference]: Finished difference Result 57 states and 59 transitions. [2021-10-28 08:48:01,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-28 08:48:01,217 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.769230769230769) internal successors, (36), 12 states have internal predecessors, (36), 6 states have call successors, (9), 5 states have call predecessors, (9), 7 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) Word has length 29 [2021-10-28 08:48:01,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:48:01,218 INFO L225 Difference]: With dead ends: 57 [2021-10-28 08:48:01,218 INFO L226 Difference]: Without dead ends: 42 [2021-10-28 08:48:01,219 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 39 SyntacticMatches, 7 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 10.8s TimeCoverageRelationStatistics Valid=96, Invalid=320, Unknown=4, NotChecked=0, Total=420 [2021-10-28 08:48:01,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2021-10-28 08:48:01,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2021-10-28 08:48:01,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 26 states have (on average 1.0384615384615385) internal successors, (27), 27 states have internal predecessors, (27), 8 states have call successors, (8), 8 states have call predecessors, (8), 7 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-10-28 08:48:01,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 42 transitions. [2021-10-28 08:48:01,223 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 42 transitions. Word has length 29 [2021-10-28 08:48:01,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:48:01,223 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 42 transitions. [2021-10-28 08:48:01,224 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.769230769230769) internal successors, (36), 12 states have internal predecessors, (36), 6 states have call successors, (9), 5 states have call predecessors, (9), 7 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2021-10-28 08:48:01,224 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 42 transitions. [2021-10-28 08:48:01,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-10-28 08:48:01,225 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:48:01,226 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:48:01,254 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22e5e71-e981-4c2e-b434-535108f19be4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (11)] Ended with exit code 0 [2021-10-28 08:48:01,438 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22e5e71-e981-4c2e-b434-535108f19be4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 08:48:01,439 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 74 more)] === [2021-10-28 08:48:01,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:48:01,439 INFO L85 PathProgramCache]: Analyzing trace with hash -1970951303, now seen corresponding path program 1 times [2021-10-28 08:48:01,439 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 08:48:01,440 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [638878376] [2021-10-28 08:48:01,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:48:01,440 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 08:48:01,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22e5e71-e981-4c2e-b434-535108f19be4/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 08:48:01,441 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22e5e71-e981-4c2e-b434-535108f19be4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 08:48:01,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22e5e71-e981-4c2e-b434-535108f19be4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-10-28 08:48:01,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:48:01,776 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 08:48:01,778 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:48:01,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:48:01,910 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 08:48:02,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:48:02,114 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 08:48:02,114 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [638878376] [2021-10-28 08:48:02,115 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [638878376] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 08:48:02,115 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:48:02,115 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-28 08:48:02,115 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886221939] [2021-10-28 08:48:02,116 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 08:48:02,116 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 08:48:02,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 08:48:02,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 08:48:02,117 INFO L87 Difference]: Start difference. First operand 42 states and 42 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) [2021-10-28 08:48:02,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:48:02,130 INFO L93 Difference]: Finished difference Result 42 states and 41 transitions. [2021-10-28 08:48:02,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 08:48:02,131 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) Word has length 37 [2021-10-28 08:48:02,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:48:02,131 INFO L225 Difference]: With dead ends: 42 [2021-10-28 08:48:02,132 INFO L226 Difference]: Without dead ends: 42 [2021-10-28 08:48:02,132 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 08:48:02,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2021-10-28 08:48:02,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2021-10-28 08:48:02,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 26 states have (on average 1.0) internal successors, (26), 26 states have internal predecessors, (26), 8 states have call successors, (8), 8 states have call predecessors, (8), 7 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-10-28 08:48:02,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 41 transitions. [2021-10-28 08:48:02,135 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 41 transitions. Word has length 37 [2021-10-28 08:48:02,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:48:02,136 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 41 transitions. [2021-10-28 08:48:02,136 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) [2021-10-28 08:48:02,136 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 41 transitions. [2021-10-28 08:48:02,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-10-28 08:48:02,138 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:48:02,138 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:48:02,151 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22e5e71-e981-4c2e-b434-535108f19be4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-10-28 08:48:02,346 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22e5e71-e981-4c2e-b434-535108f19be4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 08:48:02,347 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 74 more)] === [2021-10-28 08:48:02,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:48:02,347 INFO L85 PathProgramCache]: Analyzing trace with hash -1874562474, now seen corresponding path program 1 times [2021-10-28 08:48:02,347 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 08:48:02,347 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [112280971] [2021-10-28 08:48:02,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:48:02,348 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 08:48:02,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22e5e71-e981-4c2e-b434-535108f19be4/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 08:48:02,349 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22e5e71-e981-4c2e-b434-535108f19be4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 08:48:02,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22e5e71-e981-4c2e-b434-535108f19be4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-10-28 08:48:02,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:48:02,738 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:48:02,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:48:02,863 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-10-28 08:48:02,863 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-28 08:48:02,864 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-10-28 08:48:02,867 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr0REQUIRES_VIOLATION [2021-10-28 08:48:02,867 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr1REQUIRES_VIOLATION [2021-10-28 08:48:02,867 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr0REQUIRES_VIOLATION [2021-10-28 08:48:02,868 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr1REQUIRES_VIOLATION [2021-10-28 08:48:02,868 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr0REQUIRES_VIOLATION [2021-10-28 08:48:02,868 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr1REQUIRES_VIOLATION [2021-10-28 08:48:02,868 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr2REQUIRES_VIOLATION [2021-10-28 08:48:02,869 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr3REQUIRES_VIOLATION [2021-10-28 08:48:02,869 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION [2021-10-28 08:48:02,869 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION [2021-10-28 08:48:02,869 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION [2021-10-28 08:48:02,870 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION [2021-10-28 08:48:02,870 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr0REQUIRES_VIOLATION [2021-10-28 08:48:02,870 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr1REQUIRES_VIOLATION [2021-10-28 08:48:02,870 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr2REQUIRES_VIOLATION [2021-10-28 08:48:02,870 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr3REQUIRES_VIOLATION [2021-10-28 08:48:02,871 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr4REQUIRES_VIOLATION [2021-10-28 08:48:02,871 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr5REQUIRES_VIOLATION [2021-10-28 08:48:02,871 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr6REQUIRES_VIOLATION [2021-10-28 08:48:02,871 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr7REQUIRES_VIOLATION [2021-10-28 08:48:02,872 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr0REQUIRES_VIOLATION [2021-10-28 08:48:02,872 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr1REQUIRES_VIOLATION [2021-10-28 08:48:02,872 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr0REQUIRES_VIOLATION [2021-10-28 08:48:02,872 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr1REQUIRES_VIOLATION [2021-10-28 08:48:02,873 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr2REQUIRES_VIOLATION [2021-10-28 08:48:02,873 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr3REQUIRES_VIOLATION [2021-10-28 08:48:02,873 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr0REQUIRES_VIOLATION [2021-10-28 08:48:02,873 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr1REQUIRES_VIOLATION [2021-10-28 08:48:02,874 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr2REQUIRES_VIOLATION [2021-10-28 08:48:02,874 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr3REQUIRES_VIOLATION [2021-10-28 08:48:02,874 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr0REQUIRES_VIOLATION [2021-10-28 08:48:02,874 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr1REQUIRES_VIOLATION [2021-10-28 08:48:02,875 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr0REQUIRES_VIOLATION [2021-10-28 08:48:02,875 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr1REQUIRES_VIOLATION [2021-10-28 08:48:02,875 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr2REQUIRES_VIOLATION [2021-10-28 08:48:02,875 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr3REQUIRES_VIOLATION [2021-10-28 08:48:02,875 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr4REQUIRES_VIOLATION [2021-10-28 08:48:02,876 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr5REQUIRES_VIOLATION [2021-10-28 08:48:02,876 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr0REQUIRES_VIOLATION [2021-10-28 08:48:02,876 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr1REQUIRES_VIOLATION [2021-10-28 08:48:02,876 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr0REQUIRES_VIOLATION [2021-10-28 08:48:02,877 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr1REQUIRES_VIOLATION [2021-10-28 08:48:02,877 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 08:48:02,877 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 08:48:02,877 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 08:48:02,878 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 08:48:02,878 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 08:48:02,878 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 08:48:02,878 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr0REQUIRES_VIOLATION [2021-10-28 08:48:02,879 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr1REQUIRES_VIOLATION [2021-10-28 08:48:02,879 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr2REQUIRES_VIOLATION [2021-10-28 08:48:02,879 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr3REQUIRES_VIOLATION [2021-10-28 08:48:02,879 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr4REQUIRES_VIOLATION [2021-10-28 08:48:02,880 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr5REQUIRES_VIOLATION [2021-10-28 08:48:02,880 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr0REQUIRES_VIOLATION [2021-10-28 08:48:02,880 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr1REQUIRES_VIOLATION [2021-10-28 08:48:02,880 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 08:48:02,881 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 08:48:02,881 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 08:48:02,881 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 08:48:02,881 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 08:48:02,882 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 08:48:02,882 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr0REQUIRES_VIOLATION [2021-10-28 08:48:02,882 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr1REQUIRES_VIOLATION [2021-10-28 08:48:02,882 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr0REQUIRES_VIOLATION [2021-10-28 08:48:02,883 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr1REQUIRES_VIOLATION [2021-10-28 08:48:02,883 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr2REQUIRES_VIOLATION [2021-10-28 08:48:02,883 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr3REQUIRES_VIOLATION [2021-10-28 08:48:02,883 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr0REQUIRES_VIOLATION [2021-10-28 08:48:02,883 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr1REQUIRES_VIOLATION [2021-10-28 08:48:02,884 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr0REQUIRES_VIOLATION [2021-10-28 08:48:02,884 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr1REQUIRES_VIOLATION [2021-10-28 08:48:02,884 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe1_6Err0REQUIRES_VIOLATION [2021-10-28 08:48:02,884 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe1_6Err1REQUIRES_VIOLATION [2021-10-28 08:48:02,885 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe1_6Err2ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 08:48:02,885 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe1_6Err3ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 08:48:02,885 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe1_6Err4ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 08:48:02,905 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22e5e71-e981-4c2e-b434-535108f19be4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-10-28 08:48:03,100 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22e5e71-e981-4c2e-b434-535108f19be4/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 08:48:03,104 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:48:03,109 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 08:48:03,129 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2021-10-28 08:48:03,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 08:48:03 BoogieIcfgContainer [2021-10-28 08:48:03,176 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 08:48:03,177 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 08:48:03,177 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 08:48:03,178 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 08:48:03,178 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:46:16" (3/4) ... [2021-10-28 08:48:03,183 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 08:48:03,184 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 08:48:03,185 INFO L168 Benchmark]: Toolchain (without parser) took 110160.73 ms. Allocated memory was 56.6 MB in the beginning and 142.6 MB in the end (delta: 86.0 MB). Free memory was 33.2 MB in the beginning and 79.7 MB in the end (delta: -46.6 MB). Peak memory consumption was 37.9 MB. Max. memory is 16.1 GB. [2021-10-28 08:48:03,186 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 56.6 MB. Free memory is still 37.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:48:03,187 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1128.41 ms. Allocated memory was 56.6 MB in the beginning and 73.4 MB in the end (delta: 16.8 MB). Free memory was 33.0 MB in the beginning and 51.4 MB in the end (delta: -18.4 MB). Peak memory consumption was 14.6 MB. Max. memory is 16.1 GB. [2021-10-28 08:48:03,187 INFO L168 Benchmark]: Boogie Preprocessor took 169.10 ms. Allocated memory is still 73.4 MB. Free memory was 51.4 MB in the beginning and 46.6 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 08:48:03,188 INFO L168 Benchmark]: RCFGBuilder took 2003.36 ms. Allocated memory is still 73.4 MB. Free memory was 46.6 MB in the beginning and 37.9 MB in the end (delta: 8.7 MB). Peak memory consumption was 18.2 MB. Max. memory is 16.1 GB. [2021-10-28 08:48:03,189 INFO L168 Benchmark]: TraceAbstraction took 106844.43 ms. Allocated memory was 73.4 MB in the beginning and 142.6 MB in the end (delta: 69.2 MB). Free memory was 37.5 MB in the beginning and 79.7 MB in the end (delta: -42.2 MB). Peak memory consumption was 26.0 MB. Max. memory is 16.1 GB. [2021-10-28 08:48:03,189 INFO L168 Benchmark]: Witness Printer took 6.68 ms. Allocated memory is still 142.6 MB. Free memory is still 79.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:48:03,191 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 56.6 MB. Free memory is still 37.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1128.41 ms. Allocated memory was 56.6 MB in the beginning and 73.4 MB in the end (delta: 16.8 MB). Free memory was 33.0 MB in the beginning and 51.4 MB in the end (delta: -18.4 MB). Peak memory consumption was 14.6 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 169.10 ms. Allocated memory is still 73.4 MB. Free memory was 51.4 MB in the beginning and 46.6 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2003.36 ms. Allocated memory is still 73.4 MB. Free memory was 46.6 MB in the beginning and 37.9 MB in the end (delta: 8.7 MB). Peak memory consumption was 18.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 106844.43 ms. Allocated memory was 73.4 MB in the beginning and 142.6 MB in the end (delta: 69.2 MB). Free memory was 37.5 MB in the beginning and 79.7 MB in the end (delta: -42.2 MB). Peak memory consumption was 26.0 MB. Max. memory is 16.1 GB. * Witness Printer took 6.68 ms. Allocated memory is still 142.6 MB. Free memory is still 79.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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 - UnprovableResult [Line: 790]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 790. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L782] struct A a6; VAL [\old(a6)=null, \old(a6)=null, \old(ldv_global_msg_list)=null, \old(ldv_global_msg_list)=null, a6={3:0}, ldv_global_msg_list={-2147483648:0}] [L791] CALL entry_point() VAL [a6={3:0}, ldv_global_msg_list={-2147483648:0}] [L784] CALL, EXPR probe1_6(&a6) VAL [a={3:0}, a6={3:0}, ldv_global_msg_list={-2147483648:0}] [L764] int ret = - -3; VAL [a={3:0}, a={3:0}, a6={3:0}, ldv_global_msg_list={-2147483648:0}, ret=3] [L765] CALL, EXPR ldv_malloc(sizeof(int)) VAL [\old(size)=4, a6={3:0}, ldv_global_msg_list={-2147483648:0}] [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L765] RET, EXPR ldv_malloc(sizeof(int)) VAL [a={3:0}, a={3:0}, a6={3:0}, ldv_global_msg_list={-2147483648:0}, ldv_malloc(sizeof(int))={1:0}, ret=3] [L765] int *p = (int *)ldv_malloc(sizeof(int)); [L766] COND FALSE !(p==0) VAL [a={3:0}, a={3:0}, a6={3:0}, ldv_global_msg_list={-2147483648:0}, p={1:0}, ret=3] [L768] CALL, EXPR f6() VAL [a6={3:0}, ldv_global_msg_list={-2147483648:0}] [L758] return __VERIFIER_nondet_int(); [L768] RET, EXPR f6() VAL [a={3:0}, a={3:0}, a6={3:0}, f6()=0, ldv_global_msg_list={-2147483648:0}, p={1:0}, ret=3] [L768] ret = f6() [L769] COND FALSE !(ret<0) VAL [a={3:0}, a={3:0}, a6={3:0}, ldv_global_msg_list={-2147483648:0}, p={1:0}, ret=0] [L771] CALL, EXPR g6() VAL [a6={3:0}, ldv_global_msg_list={-2147483648:0}] [L761] return __VERIFIER_nondet_int(); [L771] RET, EXPR g6() VAL [a={3:0}, a={3:0}, a6={3:0}, g6()=0, ldv_global_msg_list={-2147483648:0}, p={1:0}, ret=0] [L771] ret = g6() [L772] COND FALSE !(ret<0) VAL [a={3:0}, a={3:0}, a6={3:0}, ldv_global_msg_list={-2147483648:0}, p={1:0}, ret=0] [L774] a->p = p VAL [a={3:0}, a={3:0}, a6={3:0}, ldv_global_msg_list={-2147483648:0}, p={1:0}, ret=0] [L775] return 0; VAL [\result=0, a={3:0}, a={3:0}, a6={3:0}, ldv_global_msg_list={-2147483648:0}, p={1:0}, ret=0] [L784] RET, EXPR probe1_6(&a6) VAL [a6={3:0}, ldv_global_msg_list={-2147483648:0}, probe1_6(&a6)=0] [L784] int ret = probe1_6(&a6); [L785] COND TRUE ret==0 VAL [a6={3:0}, ldv_global_msg_list={-2147483648:0}, ret=0] [L786] FCALL disconnect_2_6(&a6) VAL [a6={3:0}, ldv_global_msg_list={-2147483648:0}, ret=0] [L788] a6.p = 0 VAL [a6={3:0}, ldv_global_msg_list={-2147483648:0}, ret=0] [L791] RET entry_point() VAL [a6={3:0}, ldv_global_msg_list={-2147483648:0}] - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 658]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 658]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 660]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 660]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 549]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 549]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 623]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 623]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 555]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 555]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 666]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 666]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 588]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 588]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 788]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 788]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 774]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 774]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 777]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 777]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 777]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 51 procedures, 365 locations, 78 error locations. Started 1 CEGAR loops. OverallTime: 106.6s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 85.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 549 SDtfs, 753 SDslu, 1159 SDs, 0 SdLazy, 799 SolverSat, 254 SolverUnsat, 34 SolverUnknown, 0 SolverNotchecked, 73.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 564 GetRequests, 448 SyntacticMatches, 31 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 19.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=125occurred in iteration=0, InterpolantAutomatonStates: 80, 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, 11 MinimizatonAttempts, 52 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 14.3s InterpolantComputationTime, 316 NumberOfCodeBlocks, 316 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 528 ConstructedInterpolants, 45 QuantifiedInterpolants, 3205 SizeOfPredicates, 28 NumberOfNonLiveVariables, 1231 ConjunctsInSsa, 96 ConjunctsInUnsatCore, 22 InterpolantComputations, 22 PerfectInterpolantSequences, 0/0 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-28 08:48:03,265 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22e5e71-e981-4c2e-b434-535108f19be4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...