./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test18_2.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_b9a0ef8e-85b0-42b2-8a8c-37e40ee7d22d/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a0ef8e-85b0-42b2-8a8c-37e40ee7d22d/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_b9a0ef8e-85b0-42b2-8a8c-37e40ee7d22d/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a0ef8e-85b0-42b2-8a8c-37e40ee7d22d/bin/uautomizer-UnR33cPsHg/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test18_2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a0ef8e-85b0-42b2-8a8c-37e40ee7d22d/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_b9a0ef8e-85b0-42b2-8a8c-37e40ee7d22d/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 27e059eb1633b1ab9c045484375455e2667fa3360a55d0bc53eccfa53fe7600f ................................................................................................................................... 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_b9a0ef8e-85b0-42b2-8a8c-37e40ee7d22d/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a0ef8e-85b0-42b2-8a8c-37e40ee7d22d/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_b9a0ef8e-85b0-42b2-8a8c-37e40ee7d22d/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a0ef8e-85b0-42b2-8a8c-37e40ee7d22d/bin/uautomizer-UnR33cPsHg/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test18_2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a0ef8e-85b0-42b2-8a8c-37e40ee7d22d/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_b9a0ef8e-85b0-42b2-8a8c-37e40ee7d22d/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 27e059eb1633b1ab9c045484375455e2667fa3360a55d0bc53eccfa53fe7600f ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 09:43:15,047 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:43:15,051 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:43:15,107 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:43:15,109 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:43:15,114 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:43:15,118 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:43:15,124 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:43:15,127 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:43:15,136 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:43:15,138 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:43:15,140 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:43:15,141 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:43:15,144 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:43:15,148 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:43:15,151 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:43:15,153 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:43:15,155 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:43:15,161 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:43:15,168 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:43:15,171 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:43:15,173 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:43:15,177 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:43:15,178 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:43:15,185 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:43:15,186 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:43:15,186 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:43:15,188 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:43:15,189 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:43:15,191 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:43:15,192 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:43:15,193 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:43:15,196 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:43:15,197 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:43:15,200 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:43:15,200 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:43:15,201 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:43:15,202 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:43:15,202 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:43:15,203 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:43:15,204 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:43:15,205 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a0ef8e-85b0-42b2-8a8c-37e40ee7d22d/bin/uautomizer-UnR33cPsHg/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-10-28 09:43:15,264 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:43:15,266 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:43:15,267 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:43:15,267 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:43:15,276 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:43:15,277 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:43:15,278 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:43:15,278 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:43:15,278 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 09:43:15,279 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 09:43:15,280 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 09:43:15,280 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 09:43:15,281 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:43:15,281 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-28 09:43:15,281 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-28 09:43:15,281 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-28 09:43:15,282 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 09:43:15,282 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-28 09:43:15,282 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 09:43:15,282 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:43:15,283 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:43:15,283 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:43:15,283 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 09:43:15,283 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:43:15,284 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:43:15,284 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 09:43:15,284 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 09:43:15,285 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 09:43:15,285 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:43:15,287 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_b9a0ef8e-85b0-42b2-8a8c-37e40ee7d22d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a0ef8e-85b0-42b2-8a8c-37e40ee7d22d/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 27e059eb1633b1ab9c045484375455e2667fa3360a55d0bc53eccfa53fe7600f [2021-10-28 09:43:15,603 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:43:15,634 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:43:15,638 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:43:15,640 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:43:15,642 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:43:15,643 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a0ef8e-85b0-42b2-8a8c-37e40ee7d22d/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/ldv-memsafety/memleaks_test18_2.i [2021-10-28 09:43:15,740 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a0ef8e-85b0-42b2-8a8c-37e40ee7d22d/bin/uautomizer-UnR33cPsHg/data/7f7c7f5d6/e86507ecc54945e480f91c2235ff6b6f/FLAG758b49fdd [2021-10-28 09:43:16,390 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:43:16,391 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a0ef8e-85b0-42b2-8a8c-37e40ee7d22d/sv-benchmarks/c/ldv-memsafety/memleaks_test18_2.i [2021-10-28 09:43:16,413 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a0ef8e-85b0-42b2-8a8c-37e40ee7d22d/bin/uautomizer-UnR33cPsHg/data/7f7c7f5d6/e86507ecc54945e480f91c2235ff6b6f/FLAG758b49fdd [2021-10-28 09:43:16,604 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a0ef8e-85b0-42b2-8a8c-37e40ee7d22d/bin/uautomizer-UnR33cPsHg/data/7f7c7f5d6/e86507ecc54945e480f91c2235ff6b6f [2021-10-28 09:43:16,606 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:43:16,608 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-28 09:43:16,613 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:43:16,613 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:43:16,617 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:43:16,619 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:43:16" (1/1) ... [2021-10-28 09:43:16,620 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61ee3235 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:43:16, skipping insertion in model container [2021-10-28 09:43:16,623 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:43:16" (1/1) ... [2021-10-28 09:43:16,632 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:43:16,707 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:43:17,288 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:43:17,312 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 09:43:17,312 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@13e86e2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:43:17, skipping insertion in model container [2021-10-28 09:43:17,313 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:43:17,314 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-10-28 09:43:17,318 INFO L168 Benchmark]: Toolchain (without parser) took 707.30 ms. Allocated memory is still 104.9 MB. Free memory was 66.4 MB in the beginning and 76.3 MB in the end (delta: -9.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 09:43:17,321 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 104.9 MB. Free memory was 84.3 MB in the beginning and 84.2 MB in the end (delta: 119.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:43:17,322 INFO L168 Benchmark]: CACSL2BoogieTranslator took 700.96 ms. Allocated memory is still 104.9 MB. Free memory was 66.3 MB in the beginning and 76.3 MB in the end (delta: -10.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 09:43:17,325 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 104.9 MB. Free memory was 84.3 MB in the beginning and 84.2 MB in the end (delta: 119.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 700.96 ms. Allocated memory is still 104.9 MB. Free memory was 66.3 MB in the beginning and 76.3 MB in the end (delta: -10.1 MB). Peak memory consumption was 10.5 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 09:43:19,977 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:43:19,979 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:43:20,035 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:43:20,036 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:43:20,042 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:43:20,045 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:43:20,053 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:43:20,057 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:43:20,063 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:43:20,066 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:43:20,068 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:43:20,069 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:43:20,072 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:43:20,074 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:43:20,077 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:43:20,080 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:43:20,081 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:43:20,086 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:43:20,096 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:43:20,098 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:43:20,099 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:43:20,102 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:43:20,105 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:43:20,115 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:43:20,116 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:43:20,116 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:43:20,119 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:43:20,119 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:43:20,121 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:43:20,121 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:43:20,122 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:43:20,125 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:43:20,126 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:43:20,128 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:43:20,128 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:43:20,129 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:43:20,130 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:43:20,130 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:43:20,132 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:43:20,133 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:43:20,134 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a0ef8e-85b0-42b2-8a8c-37e40ee7d22d/bin/uautomizer-UnR33cPsHg/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-10-28 09:43:20,189 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:43:20,189 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:43:20,190 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:43:20,190 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:43:20,193 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:43:20,193 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:43:20,193 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:43:20,194 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:43:20,194 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 09:43:20,194 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 09:43:20,195 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 09:43:20,196 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 09:43:20,196 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:43:20,196 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-28 09:43:20,197 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-28 09:43:20,197 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-28 09:43:20,197 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 09:43:20,198 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-28 09:43:20,198 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-28 09:43:20,198 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-28 09:43:20,198 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 09:43:20,198 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:43:20,199 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:43:20,199 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:43:20,199 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 09:43:20,199 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:43:20,200 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:43:20,200 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 09:43:20,201 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-28 09:43:20,201 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-28 09:43:20,201 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:43:20,201 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-28 09:43:20,202 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_b9a0ef8e-85b0-42b2-8a8c-37e40ee7d22d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a0ef8e-85b0-42b2-8a8c-37e40ee7d22d/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 27e059eb1633b1ab9c045484375455e2667fa3360a55d0bc53eccfa53fe7600f [2021-10-28 09:43:20,670 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:43:20,696 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:43:20,699 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:43:20,700 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:43:20,701 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:43:20,703 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a0ef8e-85b0-42b2-8a8c-37e40ee7d22d/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/ldv-memsafety/memleaks_test18_2.i [2021-10-28 09:43:20,777 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a0ef8e-85b0-42b2-8a8c-37e40ee7d22d/bin/uautomizer-UnR33cPsHg/data/cff2cfad3/f238149802d042ad97346eb05d1652f8/FLAGb670c1e98 [2021-10-28 09:43:21,475 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:43:21,476 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a0ef8e-85b0-42b2-8a8c-37e40ee7d22d/sv-benchmarks/c/ldv-memsafety/memleaks_test18_2.i [2021-10-28 09:43:21,494 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a0ef8e-85b0-42b2-8a8c-37e40ee7d22d/bin/uautomizer-UnR33cPsHg/data/cff2cfad3/f238149802d042ad97346eb05d1652f8/FLAGb670c1e98 [2021-10-28 09:43:21,722 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a0ef8e-85b0-42b2-8a8c-37e40ee7d22d/bin/uautomizer-UnR33cPsHg/data/cff2cfad3/f238149802d042ad97346eb05d1652f8 [2021-10-28 09:43:21,725 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:43:21,731 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-28 09:43:21,733 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:43:21,736 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:43:21,741 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:43:21,742 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:43:21" (1/1) ... [2021-10-28 09:43:21,743 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40b1e1e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:43:21, skipping insertion in model container [2021-10-28 09:43:21,744 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:43:21" (1/1) ... [2021-10-28 09:43:21,752 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:43:21,832 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:43:22,358 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:43:22,388 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-28 09:43:22,418 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:43:22,497 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:43:22,507 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 09:43:22,572 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:43:22,647 INFO L208 MainTranslator]: Completed translation [2021-10-28 09:43:22,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:43:22 WrapperNode [2021-10-28 09:43:22,648 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:43:22,650 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 09:43:22,650 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 09:43:22,650 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 09:43:22,664 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:43:22" (1/1) ... [2021-10-28 09:43:22,685 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:43:22" (1/1) ... [2021-10-28 09:43:22,739 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:43:22" (1/1) ... [2021-10-28 09:43:22,743 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:43:22" (1/1) ... [2021-10-28 09:43:22,804 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:43:22" (1/1) ... [2021-10-28 09:43:22,831 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:43:22" (1/1) ... [2021-10-28 09:43:22,839 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:43:22" (1/1) ... [2021-10-28 09:43:22,852 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 09:43:22,853 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 09:43:22,854 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 09:43:22,854 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 09:43:22,855 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:43:22" (1/1) ... [2021-10-28 09:43:22,866 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:43:22,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a0ef8e-85b0-42b2-8a8c-37e40ee7d22d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:43:22,903 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a0ef8e-85b0-42b2-8a8c-37e40ee7d22d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 09:43:22,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a0ef8e-85b0-42b2-8a8c-37e40ee7d22d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 09:43:22,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-10-28 09:43:22,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 09:43:22,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-10-28 09:43:22,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-10-28 09:43:22,960 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-10-28 09:43:22,960 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-10-28 09:43:22,960 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-10-28 09:43:22,960 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-10-28 09:43:22,961 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-10-28 09:43:22,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2021-10-28 09:43:22,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2021-10-28 09:43:22,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-10-28 09:43:22,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-10-28 09:43:22,962 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2021-10-28 09:43:22,962 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2021-10-28 09:43:22,962 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2021-10-28 09:43:22,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2021-10-28 09:43:22,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2021-10-28 09:43:22,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2021-10-28 09:43:22,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2021-10-28 09:43:22,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2021-10-28 09:43:22,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2021-10-28 09:43:22,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2021-10-28 09:43:22,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2021-10-28 09:43:22,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-10-28 09:43:22,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-10-28 09:43:22,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2021-10-28 09:43:22,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2021-10-28 09:43:22,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2021-10-28 09:43:22,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2021-10-28 09:43:22,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2021-10-28 09:43:22,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2021-10-28 09:43:22,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2021-10-28 09:43:22,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2021-10-28 09:43:22,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2021-10-28 09:43:22,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2021-10-28 09:43:22,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2021-10-28 09:43:22,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2021-10-28 09:43:22,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2021-10-28 09:43:22,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2021-10-28 09:43:22,968 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-10-28 09:43:22,968 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2021-10-28 09:43:22,968 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2021-10-28 09:43:22,968 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-10-28 09:43:22,968 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-10-28 09:43:22,969 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-10-28 09:43:22,969 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-10-28 09:43:22,969 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-10-28 09:43:22,969 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-10-28 09:43:22,970 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-10-28 09:43:22,970 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-10-28 09:43:22,970 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-10-28 09:43:22,970 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-10-28 09:43:22,970 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-10-28 09:43:22,971 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-10-28 09:43:22,971 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-10-28 09:43:22,971 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-10-28 09:43:22,971 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-10-28 09:43:22,971 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-10-28 09:43:22,972 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-10-28 09:43:22,972 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-10-28 09:43:22,972 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-10-28 09:43:22,972 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-10-28 09:43:22,972 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-10-28 09:43:22,973 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-10-28 09:43:22,973 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-10-28 09:43:22,973 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-10-28 09:43:22,973 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-10-28 09:43:22,973 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-10-28 09:43:22,974 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-10-28 09:43:22,974 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-10-28 09:43:22,974 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-10-28 09:43:22,974 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-10-28 09:43:22,974 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-10-28 09:43:22,975 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-10-28 09:43:22,975 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-10-28 09:43:22,975 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-10-28 09:43:22,975 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-10-28 09:43:22,975 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-10-28 09:43:22,976 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-10-28 09:43:22,976 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-10-28 09:43:22,976 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-10-28 09:43:22,976 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-10-28 09:43:22,976 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-10-28 09:43:22,977 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-10-28 09:43:22,977 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-10-28 09:43:22,977 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-10-28 09:43:22,977 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-10-28 09:43:22,977 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-10-28 09:43:22,978 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-10-28 09:43:22,978 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-10-28 09:43:22,978 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-10-28 09:43:22,978 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-10-28 09:43:22,978 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-10-28 09:43:22,979 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-10-28 09:43:22,979 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-10-28 09:43:22,979 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-10-28 09:43:22,979 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-10-28 09:43:22,979 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-10-28 09:43:22,980 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-10-28 09:43:22,980 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-10-28 09:43:22,980 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-10-28 09:43:22,980 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-10-28 09:43:22,980 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-10-28 09:43:22,981 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-10-28 09:43:22,981 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-10-28 09:43:22,981 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-10-28 09:43:22,981 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-10-28 09:43:22,981 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-10-28 09:43:22,982 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-10-28 09:43:22,982 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-10-28 09:43:22,982 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-10-28 09:43:22,983 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-10-28 09:43:22,983 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-10-28 09:43:22,983 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-10-28 09:43:22,983 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-10-28 09:43:22,984 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-10-28 09:43:22,984 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-10-28 09:43:22,984 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-10-28 09:43:22,984 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-10-28 09:43:22,984 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-10-28 09:43:22,984 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-10-28 09:43:22,985 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-10-28 09:43:22,985 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-10-28 09:43:22,985 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-10-28 09:43:22,985 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-10-28 09:43:22,986 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-10-28 09:43:22,986 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-10-28 09:43:22,986 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-10-28 09:43:22,986 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-10-28 09:43:22,986 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-10-28 09:43:22,987 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-10-28 09:43:22,987 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-10-28 09:43:22,987 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-10-28 09:43:22,987 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-10-28 09:43:22,987 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-10-28 09:43:22,988 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-10-28 09:43:22,988 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-10-28 09:43:22,988 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-10-28 09:43:22,988 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-10-28 09:43:22,988 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-10-28 09:43:22,989 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-10-28 09:43:22,989 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-10-28 09:43:22,989 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-10-28 09:43:22,989 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-10-28 09:43:22,989 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-10-28 09:43:22,989 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-10-28 09:43:22,990 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-10-28 09:43:22,990 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-10-28 09:43:22,990 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-10-28 09:43:22,990 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-10-28 09:43:22,990 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-10-28 09:43:22,991 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-10-28 09:43:22,991 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-10-28 09:43:22,991 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-10-28 09:43:22,991 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-10-28 09:43:22,991 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2021-10-28 09:43:22,991 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2021-10-28 09:43:22,992 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-10-28 09:43:22,992 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-10-28 09:43:22,992 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-10-28 09:43:22,992 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-28 09:43:22,992 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-10-28 09:43:22,993 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-10-28 09:43:22,993 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2021-10-28 09:43:22,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-28 09:43:22,993 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2021-10-28 09:43:22,993 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2021-10-28 09:43:22,994 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2021-10-28 09:43:22,994 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-28 09:43:22,994 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2021-10-28 09:43:22,994 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2021-10-28 09:43:22,994 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2021-10-28 09:43:22,994 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2021-10-28 09:43:22,995 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-10-28 09:43:22,995 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2021-10-28 09:43:22,995 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 09:43:22,995 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2021-10-28 09:43:22,995 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2021-10-28 09:43:22,996 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-10-28 09:43:22,996 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-10-28 09:43:22,996 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2021-10-28 09:43:22,996 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-28 09:43:22,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-28 09:43:22,996 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2021-10-28 09:43:22,997 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2021-10-28 09:43:22,997 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-10-28 09:43:22,997 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2021-10-28 09:43:22,997 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2021-10-28 09:43:22,997 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2021-10-28 09:43:22,998 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2021-10-28 09:43:22,998 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2021-10-28 09:43:22,998 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2021-10-28 09:43:22,998 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2021-10-28 09:43:22,998 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2021-10-28 09:43:22,998 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2021-10-28 09:43:22,999 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2021-10-28 09:43:22,999 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2021-10-28 09:43:22,999 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-10-28 09:43:22,999 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-10-28 09:43:22,999 INFO L130 BoogieDeclarations]: Found specification of procedure g [2021-10-28 09:43:23,000 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2021-10-28 09:43:23,000 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-10-28 09:43:23,000 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-10-28 09:43:23,000 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 09:43:23,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-28 09:43:23,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 09:43:23,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-10-28 09:43:23,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-10-28 09:43:23,001 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-10-28 09:43:23,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-10-28 09:43:23,001 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-10-28 09:43:23,625 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 09:43:24,036 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 09:43:24,467 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 09:43:24,471 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2021-10-28 09:43:24,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:43:24 BoogieIcfgContainer [2021-10-28 09:43:24,476 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 09:43:24,479 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 09:43:24,480 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 09:43:24,484 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 09:43:24,484 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 09:43:21" (1/3) ... [2021-10-28 09:43:24,485 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37bb5293 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:43:24, skipping insertion in model container [2021-10-28 09:43:24,485 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:43:22" (2/3) ... [2021-10-28 09:43:24,487 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37bb5293 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:43:24, skipping insertion in model container [2021-10-28 09:43:24,488 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:43:24" (3/3) ... [2021-10-28 09:43:24,489 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test18_2.i [2021-10-28 09:43:24,497 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 09:43:24,497 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 81 error locations. [2021-10-28 09:43:24,567 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 09:43:24,576 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 09:43:24,576 INFO L340 AbstractCegarLoop]: Starting to check reachability of 81 error locations. [2021-10-28 09:43:24,602 INFO L276 IsEmpty]: Start isEmpty. Operand has 117 states, 66 states have (on average 1.606060606060606) internal successors, (106), 94 states have internal predecessors, (106), 12 states have call successors, (12), 10 states have call predecessors, (12), 10 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2021-10-28 09:43:24,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-28 09:43:24,627 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:43:24,628 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:43:24,628 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-10-28 09:43:24,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:43:24,635 INFO L85 PathProgramCache]: Analyzing trace with hash -114808450, now seen corresponding path program 1 times [2021-10-28 09:43:24,649 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:43:24,650 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1239637639] [2021-10-28 09:43:24,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:43:24,651 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:43:24,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a0ef8e-85b0-42b2-8a8c-37e40ee7d22d/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:43:24,655 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a0ef8e-85b0-42b2-8a8c-37e40ee7d22d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:43:24,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a0ef8e-85b0-42b2-8a8c-37e40ee7d22d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-28 09:43:24,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:43:24,891 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 09:43:24,896 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:43:25,064 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 09:43:25,065 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:43:25,199 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 09:43:25,200 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:43:25,200 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1239637639] [2021-10-28 09:43:25,201 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1239637639] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:43:25,201 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:43:25,201 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-28 09:43:25,212 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369749001] [2021-10-28 09:43:25,217 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 09:43:25,218 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:43:25,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 09:43:25,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:43:25,249 INFO L87 Difference]: Start difference. First operand has 117 states, 66 states have (on average 1.606060606060606) internal successors, (106), 94 states have internal predecessors, (106), 12 states have call successors, (12), 10 states have call predecessors, (12), 10 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 09:43:25,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:43:25,474 INFO L93 Difference]: Finished difference Result 78 states and 90 transitions. [2021-10-28 09:43:25,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 09:43:25,477 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 17 [2021-10-28 09:43:25,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:43:25,486 INFO L225 Difference]: With dead ends: 78 [2021-10-28 09:43:25,486 INFO L226 Difference]: Without dead ends: 75 [2021-10-28 09:43:25,488 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 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 09:43:25,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2021-10-28 09:43:25,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 48. [2021-10-28 09:43:25,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 28 states have (on average 1.5357142857142858) internal successors, (43), 38 states have internal predecessors, (43), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2021-10-28 09:43:25,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 54 transitions. [2021-10-28 09:43:25,541 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 54 transitions. Word has length 17 [2021-10-28 09:43:25,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:43:25,541 INFO L470 AbstractCegarLoop]: Abstraction has 48 states and 54 transitions. [2021-10-28 09:43:25,542 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 09:43:25,542 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 54 transitions. [2021-10-28 09:43:25,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-28 09:43:25,544 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:43:25,544 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:43:25,560 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a0ef8e-85b0-42b2-8a8c-37e40ee7d22d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-28 09:43:25,756 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a0ef8e-85b0-42b2-8a8c-37e40ee7d22d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:43:25,756 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-10-28 09:43:25,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:43:25,757 INFO L85 PathProgramCache]: Analyzing trace with hash 1628001885, now seen corresponding path program 1 times [2021-10-28 09:43:25,758 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:43:25,758 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [184839774] [2021-10-28 09:43:25,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:43:25,758 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:43:25,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a0ef8e-85b0-42b2-8a8c-37e40ee7d22d/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:43:25,760 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a0ef8e-85b0-42b2-8a8c-37e40ee7d22d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:43:25,784 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a0ef8e-85b0-42b2-8a8c-37e40ee7d22d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-28 09:43:25,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:43:25,960 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 09:43:25,963 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:43:26,051 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 09:43:26,051 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:43:26,174 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 09:43:26,175 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:43:26,175 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [184839774] [2021-10-28 09:43:26,175 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [184839774] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:43:26,176 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:43:26,176 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-28 09:43:26,176 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784917246] [2021-10-28 09:43:26,182 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:43:26,183 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:43:26,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:43:26,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:43:26,186 INFO L87 Difference]: Start difference. First operand 48 states and 54 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-10-28 09:43:26,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:43:26,294 INFO L93 Difference]: Finished difference Result 76 states and 86 transitions. [2021-10-28 09:43:26,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:43:26,295 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 17 [2021-10-28 09:43:26,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:43:26,297 INFO L225 Difference]: With dead ends: 76 [2021-10-28 09:43:26,297 INFO L226 Difference]: Without dead ends: 73 [2021-10-28 09:43:26,298 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:43:26,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2021-10-28 09:43:26,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 54. [2021-10-28 09:43:26,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 33 states have (on average 1.5151515151515151) internal successors, (50), 43 states have internal predecessors, (50), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (8), 6 states have call predecessors, (8), 5 states have call successors, (8) [2021-10-28 09:43:26,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 64 transitions. [2021-10-28 09:43:26,311 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 64 transitions. Word has length 17 [2021-10-28 09:43:26,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:43:26,312 INFO L470 AbstractCegarLoop]: Abstraction has 54 states and 64 transitions. [2021-10-28 09:43:26,312 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-10-28 09:43:26,312 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 64 transitions. [2021-10-28 09:43:26,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-28 09:43:26,315 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:43:26,315 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:43:26,333 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a0ef8e-85b0-42b2-8a8c-37e40ee7d22d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-28 09:43:26,527 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a0ef8e-85b0-42b2-8a8c-37e40ee7d22d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:43:26,528 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-10-28 09:43:26,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:43:26,528 INFO L85 PathProgramCache]: Analyzing trace with hash 735393073, now seen corresponding path program 1 times [2021-10-28 09:43:26,529 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:43:26,529 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [722410140] [2021-10-28 09:43:26,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:43:26,530 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:43:26,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a0ef8e-85b0-42b2-8a8c-37e40ee7d22d/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:43:26,532 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a0ef8e-85b0-42b2-8a8c-37e40ee7d22d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:43:26,533 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a0ef8e-85b0-42b2-8a8c-37e40ee7d22d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-28 09:43:26,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:43:26,714 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-28 09:43:26,715 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:43:26,828 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 09:43:26,828 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:43:26,931 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 09:43:26,932 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:43:26,933 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [722410140] [2021-10-28 09:43:26,933 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [722410140] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:43:26,933 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:43:26,933 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-28 09:43:26,934 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118275155] [2021-10-28 09:43:26,934 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 09:43:26,936 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:43:26,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 09:43:26,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-28 09:43:26,940 INFO L87 Difference]: Start difference. First operand 54 states and 64 transitions. Second operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2021-10-28 09:43:27,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:43:27,037 INFO L93 Difference]: Finished difference Result 92 states and 111 transitions. [2021-10-28 09:43:27,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 09:43:27,039 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 18 [2021-10-28 09:43:27,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:43:27,041 INFO L225 Difference]: With dead ends: 92 [2021-10-28 09:43:27,043 INFO L226 Difference]: Without dead ends: 92 [2021-10-28 09:43:27,044 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2021-10-28 09:43:27,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2021-10-28 09:43:27,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 63. [2021-10-28 09:43:27,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 40 states have (on average 1.5) internal successors, (60), 51 states have internal predecessors, (60), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) [2021-10-28 09:43:27,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 80 transitions. [2021-10-28 09:43:27,071 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 80 transitions. Word has length 18 [2021-10-28 09:43:27,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:43:27,072 INFO L470 AbstractCegarLoop]: Abstraction has 63 states and 80 transitions. [2021-10-28 09:43:27,072 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2021-10-28 09:43:27,072 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 80 transitions. [2021-10-28 09:43:27,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-28 09:43:27,074 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:43:27,077 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:43:27,100 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a0ef8e-85b0-42b2-8a8c-37e40ee7d22d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-28 09:43:27,289 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a0ef8e-85b0-42b2-8a8c-37e40ee7d22d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:43:27,289 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting entry_pointErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-10-28 09:43:27,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:43:27,290 INFO L85 PathProgramCache]: Analyzing trace with hash -529470855, now seen corresponding path program 1 times [2021-10-28 09:43:27,291 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:43:27,291 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1955715832] [2021-10-28 09:43:27,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:43:27,291 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:43:27,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a0ef8e-85b0-42b2-8a8c-37e40ee7d22d/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:43:27,292 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a0ef8e-85b0-42b2-8a8c-37e40ee7d22d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:43:27,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a0ef8e-85b0-42b2-8a8c-37e40ee7d22d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-28 09:43:27,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:43:27,496 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-28 09:43:27,498 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:43:27,561 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 09:43:27,729 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-10-28 09:43:27,729 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 21 treesize of output 26 [2021-10-28 09:43:27,780 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:43:27,780 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:43:28,128 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:43:28,128 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:43:28,128 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1955715832] [2021-10-28 09:43:28,128 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1955715832] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-28 09:43:28,129 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:43:28,129 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 7 [2021-10-28 09:43:28,129 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691484031] [2021-10-28 09:43:28,130 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 09:43:28,133 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:43:28,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 09:43:28,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-10-28 09:43:28,134 INFO L87 Difference]: Start difference. First operand 63 states and 80 transitions. Second operand has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-10-28 09:43:29,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:43:29,040 INFO L93 Difference]: Finished difference Result 163 states and 188 transitions. [2021-10-28 09:43:29,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-28 09:43:29,041 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 23 [2021-10-28 09:43:29,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:43:29,043 INFO L225 Difference]: With dead ends: 163 [2021-10-28 09:43:29,044 INFO L226 Difference]: Without dead ends: 163 [2021-10-28 09:43:29,044 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 34 SyntacticMatches, 6 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2021-10-28 09:43:29,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2021-10-28 09:43:29,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 79. [2021-10-28 09:43:29,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 55 states have (on average 1.509090909090909) internal successors, (83), 64 states have internal predecessors, (83), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (12), 9 states have call predecessors, (12), 7 states have call successors, (12) [2021-10-28 09:43:29,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 103 transitions. [2021-10-28 09:43:29,058 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 103 transitions. Word has length 23 [2021-10-28 09:43:29,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:43:29,058 INFO L470 AbstractCegarLoop]: Abstraction has 79 states and 103 transitions. [2021-10-28 09:43:29,059 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-10-28 09:43:29,059 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 103 transitions. [2021-10-28 09:43:29,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-28 09:43:29,060 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:43:29,060 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:43:29,072 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a0ef8e-85b0-42b2-8a8c-37e40ee7d22d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-10-28 09:43:29,272 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a0ef8e-85b0-42b2-8a8c-37e40ee7d22d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:43:29,272 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting entry_pointErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-10-28 09:43:29,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:43:29,273 INFO L85 PathProgramCache]: Analyzing trace with hash -529470854, now seen corresponding path program 1 times [2021-10-28 09:43:29,273 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:43:29,273 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [192034125] [2021-10-28 09:43:29,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:43:29,273 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:43:29,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a0ef8e-85b0-42b2-8a8c-37e40ee7d22d/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:43:29,274 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a0ef8e-85b0-42b2-8a8c-37e40ee7d22d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:43:29,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a0ef8e-85b0-42b2-8a8c-37e40ee7d22d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-28 09:43:29,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:43:29,468 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-28 09:43:29,470 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:43:29,528 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 09:43:29,537 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 09:43:31,927 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-10-28 09:43:31,927 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 32 treesize of output 34 [2021-10-28 09:43:31,942 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-28 09:43:31,942 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 26 [2021-10-28 09:43:32,026 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:43:32,026 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:43:57,283 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 29 treesize of output 27 [2021-10-28 09:43:59,885 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 27 treesize of output 25 [2021-10-28 09:44:00,107 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:44:00,107 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:44:00,107 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [192034125] [2021-10-28 09:44:00,108 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [192034125] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-28 09:44:00,108 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:44:00,108 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2021-10-28 09:44:00,108 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641837769] [2021-10-28 09:44:00,108 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-10-28 09:44:00,109 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:44:00,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-10-28 09:44:00,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=253, Unknown=10, NotChecked=0, Total=306 [2021-10-28 09:44:00,110 INFO L87 Difference]: Start difference. First operand 79 states and 103 transitions. Second operand has 18 states, 15 states have (on average 1.8666666666666667) internal successors, (28), 16 states have internal predecessors, (28), 5 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-10-28 09:45:41,144 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (bvmul c_entry_point_~i~0 (_ bv4 32)))) (let ((.cse1 (bvadd (_ bv4 32) .cse0 c_entry_point_~array~0.offset))) (and (bvule (bvadd .cse0 c_entry_point_~array~0.offset) .cse1) (forall ((|v_ldv_malloc_#res.base_34| (_ BitVec 32))) (or (and (let ((.cse2 (bvmul c_entry_point_~i~0 (_ bv4 32)))) (bvule (bvadd .cse2 c_entry_point_~array~0.offset) (bvadd (_ bv4 32) .cse2 c_entry_point_~array~0.offset))) (forall ((v_ldv_malloc_~size_31 (_ BitVec 32))) (bvule (bvadd (_ bv4 32) (bvmul c_entry_point_~i~0 (_ bv4 32)) c_entry_point_~array~0.offset) (select (store |c_#length| |v_ldv_malloc_#res.base_34| v_ldv_malloc_~size_31) c_entry_point_~array~0.base)))) (not (= (_ bv0 1) (bvneg (select |c_#valid| |v_ldv_malloc_#res.base_34|)))))) (= |c_old(#valid)| |c_#valid|) (= |c_#length| |c_old(#length)|) (= c_entry_point_~len~0 (_ bv10 32)) (bvule .cse1 (select |c_#length| c_entry_point_~array~0.base))))) is different from false [2021-10-28 09:47:14,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:47:14,973 INFO L93 Difference]: Finished difference Result 295 states and 356 transitions. [2021-10-28 09:47:14,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-10-28 09:47:14,975 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 15 states have (on average 1.8666666666666667) internal successors, (28), 16 states have internal predecessors, (28), 5 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Word has length 23 [2021-10-28 09:47:14,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:47:14,979 INFO L225 Difference]: With dead ends: 295 [2021-10-28 09:47:14,979 INFO L226 Difference]: Without dead ends: 295 [2021-10-28 09:47:14,980 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 61.1s TimeCoverageRelationStatistics Valid=177, Invalid=799, Unknown=20, NotChecked=60, Total=1056 [2021-10-28 09:47:14,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2021-10-28 09:47:14,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 102. [2021-10-28 09:47:14,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 76 states have (on average 1.486842105263158) internal successors, (113), 85 states have internal predecessors, (113), 10 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (16), 11 states have call predecessors, (16), 9 states have call successors, (16) [2021-10-28 09:47:14,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 139 transitions. [2021-10-28 09:47:14,998 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 139 transitions. Word has length 23 [2021-10-28 09:47:14,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:47:14,999 INFO L470 AbstractCegarLoop]: Abstraction has 102 states and 139 transitions. [2021-10-28 09:47:14,999 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 15 states have (on average 1.8666666666666667) internal successors, (28), 16 states have internal predecessors, (28), 5 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-10-28 09:47:14,999 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 139 transitions. [2021-10-28 09:47:15,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-28 09:47:15,001 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:47:15,001 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:47:15,012 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a0ef8e-85b0-42b2-8a8c-37e40ee7d22d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-28 09:47:15,201 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a0ef8e-85b0-42b2-8a8c-37e40ee7d22d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:47:15,202 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting entry_pointErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-10-28 09:47:15,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:47:15,202 INFO L85 PathProgramCache]: Analyzing trace with hash -1035029480, now seen corresponding path program 1 times [2021-10-28 09:47:15,202 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:47:15,202 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1932659513] [2021-10-28 09:47:15,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:47:15,203 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:47:15,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a0ef8e-85b0-42b2-8a8c-37e40ee7d22d/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:47:15,203 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a0ef8e-85b0-42b2-8a8c-37e40ee7d22d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:47:15,204 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a0ef8e-85b0-42b2-8a8c-37e40ee7d22d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-28 09:47:15,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:47:15,412 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-28 09:47:15,413 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:47:15,583 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:47:15,583 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:47:15,761 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 09:47:15,761 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:47:15,761 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1932659513] [2021-10-28 09:47:15,762 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1932659513] provided 1 perfect and 1 imperfect interpolant sequences [2021-10-28 09:47:15,762 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 09:47:15,762 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2021-10-28 09:47:15,762 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296465887] [2021-10-28 09:47:15,763 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 09:47:15,763 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:47:15,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 09:47:15,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:47:15,764 INFO L87 Difference]: Start difference. First operand 102 states and 139 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-10-28 09:47:15,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:47:15,823 INFO L93 Difference]: Finished difference Result 84 states and 109 transitions. [2021-10-28 09:47:15,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 09:47:15,824 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 23 [2021-10-28 09:47:15,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:47:15,825 INFO L225 Difference]: With dead ends: 84 [2021-10-28 09:47:15,825 INFO L226 Difference]: Without dead ends: 80 [2021-10-28 09:47:15,825 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 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 09:47:15,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2021-10-28 09:47:15,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2021-10-28 09:47:15,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 58 states have (on average 1.4827586206896552) internal successors, (86), 67 states have internal predecessors, (86), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (11), 7 states have call predecessors, (11), 7 states have call successors, (11) [2021-10-28 09:47:15,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 105 transitions. [2021-10-28 09:47:15,834 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 105 transitions. Word has length 23 [2021-10-28 09:47:15,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:47:15,835 INFO L470 AbstractCegarLoop]: Abstraction has 80 states and 105 transitions. [2021-10-28 09:47:15,835 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-10-28 09:47:15,835 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 105 transitions. [2021-10-28 09:47:15,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-28 09:47:15,836 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:47:15,837 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:47:15,848 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a0ef8e-85b0-42b2-8a8c-37e40ee7d22d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-28 09:47:16,048 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a0ef8e-85b0-42b2-8a8c-37e40ee7d22d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:47:16,048 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting entry_pointErr3REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-10-28 09:47:16,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:47:16,050 INFO L85 PathProgramCache]: Analyzing trace with hash -2015391035, now seen corresponding path program 1 times [2021-10-28 09:47:16,050 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:47:16,050 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1094660010] [2021-10-28 09:47:16,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:47:16,051 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:47:16,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a0ef8e-85b0-42b2-8a8c-37e40ee7d22d/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:47:16,058 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a0ef8e-85b0-42b2-8a8c-37e40ee7d22d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:47:16,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a0ef8e-85b0-42b2-8a8c-37e40ee7d22d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-28 09:47:16,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:47:16,297 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 09:47:16,299 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:47:16,393 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 09:47:16,393 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:47:16,495 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 09:47:16,495 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:47:16,495 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1094660010] [2021-10-28 09:47:16,496 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1094660010] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:47:16,496 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:47:16,496 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-28 09:47:16,496 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741859560] [2021-10-28 09:47:16,497 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 09:47:16,497 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:47:16,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 09:47:16,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:47:16,498 INFO L87 Difference]: Start difference. First operand 80 states and 105 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 09:47:16,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:47:16,597 INFO L93 Difference]: Finished difference Result 95 states and 122 transitions. [2021-10-28 09:47:16,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 09:47:16,598 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 25 [2021-10-28 09:47:16,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:47:16,599 INFO L225 Difference]: With dead ends: 95 [2021-10-28 09:47:16,599 INFO L226 Difference]: Without dead ends: 95 [2021-10-28 09:47:16,599 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-28 09:47:16,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2021-10-28 09:47:16,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 84. [2021-10-28 09:47:16,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 62 states have (on average 1.435483870967742) internal successors, (89), 69 states have internal predecessors, (89), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (11), 9 states have call predecessors, (11), 7 states have call successors, (11) [2021-10-28 09:47:16,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 108 transitions. [2021-10-28 09:47:16,608 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 108 transitions. Word has length 25 [2021-10-28 09:47:16,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:47:16,609 INFO L470 AbstractCegarLoop]: Abstraction has 84 states and 108 transitions. [2021-10-28 09:47:16,609 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 09:47:16,609 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 108 transitions. [2021-10-28 09:47:16,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-28 09:47:16,610 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:47:16,611 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:47:16,630 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a0ef8e-85b0-42b2-8a8c-37e40ee7d22d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-28 09:47:16,830 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a0ef8e-85b0-42b2-8a8c-37e40ee7d22d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:47:16,831 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting entry_pointErr3REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-10-28 09:47:16,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:47:16,831 INFO L85 PathProgramCache]: Analyzing trace with hash -272580700, now seen corresponding path program 1 times [2021-10-28 09:47:16,831 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:47:16,831 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1293024878] [2021-10-28 09:47:16,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:47:16,832 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:47:16,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a0ef8e-85b0-42b2-8a8c-37e40ee7d22d/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:47:16,832 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a0ef8e-85b0-42b2-8a8c-37e40ee7d22d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:47:16,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a0ef8e-85b0-42b2-8a8c-37e40ee7d22d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-28 09:47:17,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:47:17,055 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-28 09:47:17,057 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:47:17,166 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-28 09:47:17,166 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:47:17,302 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-28 09:47:17,303 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:47:17,303 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1293024878] [2021-10-28 09:47:17,303 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1293024878] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:47:17,303 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:47:17,303 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-28 09:47:17,304 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830461405] [2021-10-28 09:47:17,304 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 09:47:17,304 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:47:17,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 09:47:17,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-28 09:47:17,305 INFO L87 Difference]: Start difference. First operand 84 states and 108 transitions. Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2021-10-28 09:47:17,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:47:17,449 INFO L93 Difference]: Finished difference Result 83 states and 99 transitions. [2021-10-28 09:47:17,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 09:47:17,451 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 25 [2021-10-28 09:47:17,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:47:17,452 INFO L225 Difference]: With dead ends: 83 [2021-10-28 09:47:17,452 INFO L226 Difference]: Without dead ends: 83 [2021-10-28 09:47:17,453 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-28 09:47:17,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2021-10-28 09:47:17,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 76. [2021-10-28 09:47:17,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 54 states have (on average 1.3518518518518519) internal successors, (73), 61 states have internal predecessors, (73), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (11), 9 states have call predecessors, (11), 7 states have call successors, (11) [2021-10-28 09:47:17,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 92 transitions. [2021-10-28 09:47:17,460 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 92 transitions. Word has length 25 [2021-10-28 09:47:17,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:47:17,461 INFO L470 AbstractCegarLoop]: Abstraction has 76 states and 92 transitions. [2021-10-28 09:47:17,461 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2021-10-28 09:47:17,461 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 92 transitions. [2021-10-28 09:47:17,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-28 09:47:17,462 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:47:17,463 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 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 09:47:17,475 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a0ef8e-85b0-42b2-8a8c-37e40ee7d22d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-10-28 09:47:17,675 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a0ef8e-85b0-42b2-8a8c-37e40ee7d22d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:47:17,675 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting entry_pointErr8ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-10-28 09:47:17,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:47:17,675 INFO L85 PathProgramCache]: Analyzing trace with hash 139931782, now seen corresponding path program 1 times [2021-10-28 09:47:17,676 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:47:17,676 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1164004906] [2021-10-28 09:47:17,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:47:17,676 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:47:17,676 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a0ef8e-85b0-42b2-8a8c-37e40ee7d22d/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:47:17,677 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a0ef8e-85b0-42b2-8a8c-37e40ee7d22d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:47:17,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a0ef8e-85b0-42b2-8a8c-37e40ee7d22d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-28 09:47:17,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:47:17,889 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 09:47:17,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:47:18,340 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:47:18,340 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:47:18,609 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 09:47:18,610 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:47:18,610 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1164004906] [2021-10-28 09:47:18,610 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1164004906] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-28 09:47:18,610 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:47:18,610 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4] total 9 [2021-10-28 09:47:18,610 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714420502] [2021-10-28 09:47:18,610 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 09:47:18,611 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:47:18,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 09:47:18,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-10-28 09:47:18,611 INFO L87 Difference]: Start difference. First operand 76 states and 92 transitions. Second operand has 10 states, 9 states have (on average 3.888888888888889) internal successors, (35), 8 states have internal predecessors, (35), 4 states have call successors, (9), 3 states have call predecessors, (9), 5 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2021-10-28 09:47:19,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:47:19,088 INFO L93 Difference]: Finished difference Result 75 states and 90 transitions. [2021-10-28 09:47:19,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 09:47:19,089 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.888888888888889) internal successors, (35), 8 states have internal predecessors, (35), 4 states have call successors, (9), 3 states have call predecessors, (9), 5 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) Word has length 26 [2021-10-28 09:47:19,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:47:19,090 INFO L225 Difference]: With dead ends: 75 [2021-10-28 09:47:19,090 INFO L226 Difference]: Without dead ends: 75 [2021-10-28 09:47:19,090 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 42 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2021-10-28 09:47:19,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2021-10-28 09:47:19,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2021-10-28 09:47:19,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 54 states have (on average 1.3148148148148149) internal successors, (71), 60 states have internal predecessors, (71), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (11), 9 states have call predecessors, (11), 7 states have call successors, (11) [2021-10-28 09:47:19,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 90 transitions. [2021-10-28 09:47:19,097 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 90 transitions. Word has length 26 [2021-10-28 09:47:19,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:47:19,097 INFO L470 AbstractCegarLoop]: Abstraction has 75 states and 90 transitions. [2021-10-28 09:47:19,097 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.888888888888889) internal successors, (35), 8 states have internal predecessors, (35), 4 states have call successors, (9), 3 states have call predecessors, (9), 5 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2021-10-28 09:47:19,098 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 90 transitions. [2021-10-28 09:47:19,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-10-28 09:47:19,099 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:47:19,099 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:47:19,118 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a0ef8e-85b0-42b2-8a8c-37e40ee7d22d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-28 09:47:19,311 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a0ef8e-85b0-42b2-8a8c-37e40ee7d22d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:47:19,311 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-10-28 09:47:19,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:47:19,312 INFO L85 PathProgramCache]: Analyzing trace with hash -1318116199, now seen corresponding path program 1 times [2021-10-28 09:47:19,312 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:47:19,312 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1236596857] [2021-10-28 09:47:19,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:47:19,312 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:47:19,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a0ef8e-85b0-42b2-8a8c-37e40ee7d22d/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:47:19,313 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a0ef8e-85b0-42b2-8a8c-37e40ee7d22d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:47:19,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a0ef8e-85b0-42b2-8a8c-37e40ee7d22d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-28 09:47:19,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:47:19,553 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-28 09:47:19,555 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:47:19,996 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 09:47:19,997 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:47:30,044 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:47:30,044 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1236596857] [2021-10-28 09:47:30,044 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Substitution failed: {(= (store |v_old(#valid)_BEFORE_CALL_9| v_entry_point_~array~0.base_33 (_ bv0 1)) v_prenex_3)=(= (select (store |v_old(#valid)_BEFORE_CALL_9| v_entry_point_~array~0.base_33 (_ bv0 1)) v_antiDerIndex_entry0_1) (select v_prenex_3 v_antiDerIndex_entry0_1))} [2021-10-28 09:47:30,044 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1376885519] [2021-10-28 09:47:30,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:47:30,045 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-28 09:47:30,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a0ef8e-85b0-42b2-8a8c-37e40ee7d22d/bin/uautomizer-UnR33cPsHg/cvc4 [2021-10-28 09:47:30,046 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a0ef8e-85b0-42b2-8a8c-37e40ee7d22d/bin/uautomizer-UnR33cPsHg/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-28 09:47:30,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a0ef8e-85b0-42b2-8a8c-37e40ee7d22d/bin/uautomizer-UnR33cPsHg/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2021-10-28 09:47:30,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:47:30,431 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-28 09:47:30,433 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:47:30,496 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-10-28 09:47:30,497 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 28 [2021-10-28 09:47:37,505 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 09:47:37,505 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:47:48,810 INFO L354 Elim1Store]: treesize reduction 16, result has 78.1 percent of original size [2021-10-28 09:47:48,811 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 68 treesize of output 115 [2021-10-28 09:47:50,049 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-28 09:47:50,050 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 32 [2021-10-28 09:47:53,064 INFO L354 Elim1Store]: treesize reduction 15, result has 79.5 percent of original size [2021-10-28 09:47:53,064 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 75 treesize of output 123 [2021-10-28 09:47:54,621 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Substitution failed: {(not (= (store |old(#valid)| |v_entry_point_#t~ret38.base_63| (_ bv0 1)) v_prenex_11))=(not (= (select (store |old(#valid)| |v_entry_point_#t~ret38.base_63| (_ bv0 1)) v_antiDerIndex_entry0_5) (select v_prenex_11 v_antiDerIndex_entry0_5)))} [2021-10-28 09:47:54,622 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [7818768] [2021-10-28 09:47:54,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:47:54,623 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:47:54,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a0ef8e-85b0-42b2-8a8c-37e40ee7d22d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:47:54,624 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a0ef8e-85b0-42b2-8a8c-37e40ee7d22d/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:47:54,625 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a0ef8e-85b0-42b2-8a8c-37e40ee7d22d/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-10-28 09:47:54,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:47:54,952 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-28 09:47:54,953 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:47:55,279 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 09:47:55,279 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:47:59,653 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_19| (Array (_ BitVec 32) (_ BitVec 1)))) (or (= |v_old(#valid)_BEFORE_CALL_19| |c_#valid|) (exists ((v_entry_point_~array~0.base_33 (_ BitVec 32))) (and (not (= |v_old(#valid)_BEFORE_CALL_19| (store |c_old(#valid)| v_entry_point_~array~0.base_33 (_ bv0 1)))) (= (_ bv0 1) (bvneg (bvneg (bvneg (select |c_old(#valid)| v_entry_point_~array~0.base_33))))))))) is different from false [2021-10-28 09:47:59,737 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_19| (Array (_ BitVec 32) (_ BitVec 1)))) (or (= |v_old(#valid)_BEFORE_CALL_19| (store |c_#valid| c_entry_point_~array~0.base (_ bv0 1))) (exists ((v_entry_point_~array~0.base_33 (_ BitVec 32))) (and (not (= |v_old(#valid)_BEFORE_CALL_19| (store |c_old(#valid)| v_entry_point_~array~0.base_33 (_ bv0 1)))) (= (_ bv0 1) (bvneg (bvneg (bvneg (select |c_old(#valid)| v_entry_point_~array~0.base_33))))))))) is different from false [2021-10-28 09:48:00,339 INFO L354 Elim1Store]: treesize reduction 16, result has 78.1 percent of original size [2021-10-28 09:48:00,339 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 62 treesize of output 109 [2021-10-28 09:48:01,353 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-28 09:48:01,353 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 29 [2021-10-28 09:48:04,261 INFO L354 Elim1Store]: treesize reduction 16, result has 78.1 percent of original size [2021-10-28 09:48:04,261 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 71 treesize of output 118 [2021-10-28 09:48:04,872 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Substitution failed: {(not (= (store |old(#valid)| |v_entry_point_#t~ret38.base_72| (_ bv0 1)) v_prenex_21))=(not (= (select (store |old(#valid)| |v_entry_point_#t~ret38.base_72| (_ bv0 1)) v_antiDerIndex_entry0_9) (select v_prenex_21 v_antiDerIndex_entry0_9)))} [2021-10-28 09:48:04,872 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:48:04,872 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-10-28 09:48:04,873 ERROR L172 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2021-10-28 09:48:04,873 INFO L627 BasicCegarLoop]: Counterexample might be feasible [2021-10-28 09:48:04,879 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-10-28 09:48:04,881 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr0REQUIRES_VIOLATION [2021-10-28 09:48:04,882 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr1REQUIRES_VIOLATION [2021-10-28 09:48:04,882 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr0REQUIRES_VIOLATION [2021-10-28 09:48:04,882 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr1REQUIRES_VIOLATION [2021-10-28 09:48:04,882 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr0REQUIRES_VIOLATION [2021-10-28 09:48:04,882 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr1REQUIRES_VIOLATION [2021-10-28 09:48:04,883 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr2REQUIRES_VIOLATION [2021-10-28 09:48:04,883 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr3REQUIRES_VIOLATION [2021-10-28 09:48:04,883 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION [2021-10-28 09:48:04,883 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION [2021-10-28 09:48:04,883 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION [2021-10-28 09:48:04,884 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION [2021-10-28 09:48:04,884 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr0REQUIRES_VIOLATION [2021-10-28 09:48:04,884 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr1REQUIRES_VIOLATION [2021-10-28 09:48:04,884 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr2REQUIRES_VIOLATION [2021-10-28 09:48:04,884 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr3REQUIRES_VIOLATION [2021-10-28 09:48:04,885 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr4REQUIRES_VIOLATION [2021-10-28 09:48:04,885 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr5REQUIRES_VIOLATION [2021-10-28 09:48:04,885 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr6REQUIRES_VIOLATION [2021-10-28 09:48:04,885 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr7REQUIRES_VIOLATION [2021-10-28 09:48:04,885 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr0REQUIRES_VIOLATION [2021-10-28 09:48:04,885 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr1REQUIRES_VIOLATION [2021-10-28 09:48:04,886 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr0REQUIRES_VIOLATION [2021-10-28 09:48:04,886 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr1REQUIRES_VIOLATION [2021-10-28 09:48:04,886 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr2REQUIRES_VIOLATION [2021-10-28 09:48:04,886 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr3REQUIRES_VIOLATION [2021-10-28 09:48:04,886 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr0REQUIRES_VIOLATION [2021-10-28 09:48:04,887 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr1REQUIRES_VIOLATION [2021-10-28 09:48:04,887 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr2REQUIRES_VIOLATION [2021-10-28 09:48:04,887 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr3REQUIRES_VIOLATION [2021-10-28 09:48:04,887 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr0REQUIRES_VIOLATION [2021-10-28 09:48:04,887 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr1REQUIRES_VIOLATION [2021-10-28 09:48:04,888 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr0REQUIRES_VIOLATION [2021-10-28 09:48:04,888 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr1REQUIRES_VIOLATION [2021-10-28 09:48:04,888 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr2REQUIRES_VIOLATION [2021-10-28 09:48:04,888 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr3REQUIRES_VIOLATION [2021-10-28 09:48:04,888 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr4REQUIRES_VIOLATION [2021-10-28 09:48:04,888 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr5REQUIRES_VIOLATION [2021-10-28 09:48:04,889 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr0REQUIRES_VIOLATION [2021-10-28 09:48:04,889 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr1REQUIRES_VIOLATION [2021-10-28 09:48:04,889 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr0REQUIRES_VIOLATION [2021-10-28 09:48:04,889 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr1REQUIRES_VIOLATION [2021-10-28 09:48:04,889 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:48:04,890 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:48:04,890 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:48:04,890 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:48:04,890 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:48:04,890 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:48:04,891 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr0REQUIRES_VIOLATION [2021-10-28 09:48:04,891 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr1REQUIRES_VIOLATION [2021-10-28 09:48:04,891 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr2REQUIRES_VIOLATION [2021-10-28 09:48:04,891 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr3REQUIRES_VIOLATION [2021-10-28 09:48:04,891 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr4REQUIRES_VIOLATION [2021-10-28 09:48:04,892 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr5REQUIRES_VIOLATION [2021-10-28 09:48:04,892 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr0REQUIRES_VIOLATION [2021-10-28 09:48:04,892 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr1REQUIRES_VIOLATION [2021-10-28 09:48:04,892 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:48:04,892 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:48:04,893 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:48:04,893 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:48:04,893 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:48:04,893 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:48:04,893 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr0REQUIRES_VIOLATION [2021-10-28 09:48:04,894 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr1REQUIRES_VIOLATION [2021-10-28 09:48:04,894 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr0REQUIRES_VIOLATION [2021-10-28 09:48:04,894 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr1REQUIRES_VIOLATION [2021-10-28 09:48:04,894 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr2REQUIRES_VIOLATION [2021-10-28 09:48:04,894 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr3REQUIRES_VIOLATION [2021-10-28 09:48:04,894 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr0REQUIRES_VIOLATION [2021-10-28 09:48:04,895 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr1REQUIRES_VIOLATION [2021-10-28 09:48:04,895 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr0REQUIRES_VIOLATION [2021-10-28 09:48:04,895 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr1REQUIRES_VIOLATION [2021-10-28 09:48:04,895 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr2REQUIRES_VIOLATION [2021-10-28 09:48:04,895 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr3REQUIRES_VIOLATION [2021-10-28 09:48:04,896 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:48:04,896 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:48:04,896 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:48:04,896 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:48:04,896 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr8ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:48:04,897 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr9ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:48:04,914 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a0ef8e-85b0-42b2-8a8c-37e40ee7d22d/bin/uautomizer-UnR33cPsHg/cvc4 --incremental --print-success --lang smt (12)] Forceful destruction successful, exit code 0 [2021-10-28 09:48:05,116 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a0ef8e-85b0-42b2-8a8c-37e40ee7d22d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-10-28 09:48:05,352 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a0ef8e-85b0-42b2-8a8c-37e40ee7d22d/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-10-28 09:48:05,512 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a0ef8e-85b0-42b2-8a8c-37e40ee7d22d/bin/uautomizer-UnR33cPsHg/cvc4 --incremental --print-success --lang smt,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a0ef8e-85b0-42b2-8a8c-37e40ee7d22d/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a0ef8e-85b0-42b2-8a8c-37e40ee7d22d/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:48:05,515 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:48:05,521 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 09:48:05,524 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2021-10-28 09:48:05,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 09:48:05 BoogieIcfgContainer [2021-10-28 09:48:05,534 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 09:48:05,535 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 09:48:05,535 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 09:48:05,535 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 09:48:05,535 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:43:24" (3/4) ... [2021-10-28 09:48:05,539 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 09:48:05,539 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 09:48:05,540 INFO L168 Benchmark]: Toolchain (without parser) took 283808.69 ms. Allocated memory was 65.0 MB in the beginning and 119.5 MB in the end (delta: 54.5 MB). Free memory was 44.0 MB in the beginning and 59.0 MB in the end (delta: -15.0 MB). Peak memory consumption was 38.4 MB. Max. memory is 16.1 GB. [2021-10-28 09:48:05,541 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 65.0 MB. Free memory is still 47.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:48:05,541 INFO L168 Benchmark]: CACSL2BoogieTranslator took 915.85 ms. Allocated memory is still 65.0 MB. Free memory was 43.9 MB in the beginning and 31.1 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-28 09:48:05,541 INFO L168 Benchmark]: Boogie Preprocessor took 202.03 ms. Allocated memory was 65.0 MB in the beginning and 88.1 MB in the end (delta: 23.1 MB). Free memory was 31.1 MB in the beginning and 67.4 MB in the end (delta: -36.3 MB). Peak memory consumption was 5.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:48:05,542 INFO L168 Benchmark]: RCFGBuilder took 1623.44 ms. Allocated memory is still 88.1 MB. Free memory was 67.0 MB in the beginning and 45.9 MB in the end (delta: 21.1 MB). Peak memory consumption was 28.9 MB. Max. memory is 16.1 GB. [2021-10-28 09:48:05,542 INFO L168 Benchmark]: TraceAbstraction took 281054.86 ms. Allocated memory was 88.1 MB in the beginning and 119.5 MB in the end (delta: 31.5 MB). Free memory was 45.4 MB in the beginning and 59.0 MB in the end (delta: -13.5 MB). Peak memory consumption was 55.2 MB. Max. memory is 16.1 GB. [2021-10-28 09:48:05,543 INFO L168 Benchmark]: Witness Printer took 4.50 ms. Allocated memory is still 119.5 MB. Free memory is still 59.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:48:05,544 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 65.0 MB. Free memory is still 47.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 915.85 ms. Allocated memory is still 65.0 MB. Free memory was 43.9 MB in the beginning and 31.1 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 202.03 ms. Allocated memory was 65.0 MB in the beginning and 88.1 MB in the end (delta: 23.1 MB). Free memory was 31.1 MB in the beginning and 67.4 MB in the end (delta: -36.3 MB). Peak memory consumption was 5.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1623.44 ms. Allocated memory is still 88.1 MB. Free memory was 67.0 MB in the beginning and 45.9 MB in the end (delta: 21.1 MB). Peak memory consumption was 28.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 281054.86 ms. Allocated memory was 88.1 MB in the beginning and 119.5 MB in the end (delta: 31.5 MB). Free memory was 45.4 MB in the beginning and 59.0 MB in the end (delta: -13.5 MB). Peak memory consumption was 55.2 MB. Max. memory is 16.1 GB. * Witness Printer took 4.50 ms. Allocated memory is still 119.5 MB. Free memory is still 59.0 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.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: 780]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: unable to decide satisfiability of path constraint, overapproximation of memtrack at line 780. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L781] CALL entry_point() [L761] int len = 10; [L762] CALL, EXPR ldv_malloc(sizeof(struct A18*)*len) [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L762] RET, EXPR ldv_malloc(sizeof(struct A18*)*len) [L762] struct A18 **array = (struct A18 **)ldv_malloc(sizeof(struct A18*)*len); [L763] struct A18 *p; [L764] int i=0; [L765] int j; [L766] COND FALSE !(!array) [L767] COND TRUE i=0) [L777] free(array) [L777] free(array) [L777] free(array) [L781] RET entry_point() - 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: 770]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 770]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 775]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 775]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 775]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 775]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 775]: 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. - 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 47 procedures, 357 locations, 81 error locations. Started 1 CEGAR loops. OverallTime: 280.9s, OverallIterations: 10, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 197.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 451 SDtfs, 857 SDslu, 1334 SDs, 0 SdLazy, 1189 SolverSat, 140 SolverUnsat, 72 SolverUnknown, 0 SolverNotchecked, 156.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 411 GetRequests, 331 SyntacticMatches, 7 SemanticMatches, 73 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 61.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=117occurred in iteration=0, InterpolantAutomatonStates: 72, 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, 9 MinimizatonAttempts, 370 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 44.0s InterpolantComputationTime, 227 NumberOfCodeBlocks, 227 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 405 ConstructedInterpolants, 26 QuantifiedInterpolants, 2109 SizeOfPredicates, 13 NumberOfNonLiveVariables, 918 ConjunctsInSsa, 72 ConjunctsInUnsatCore, 19 InterpolantComputations, 11 PerfectInterpolantSequences, 34/52 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 09:48:05,618 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a0ef8e-85b0-42b2-8a8c-37e40ee7d22d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...