./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test16.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_62055933-ecc9-45b3-b79c-d55e5aa1d37e/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62055933-ecc9-45b3-b79c-d55e5aa1d37e/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_62055933-ecc9-45b3-b79c-d55e5aa1d37e/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62055933-ecc9-45b3-b79c-d55e5aa1d37e/bin/uautomizer-UnR33cPsHg/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test16.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62055933-ecc9-45b3-b79c-d55e5aa1d37e/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_62055933-ecc9-45b3-b79c-d55e5aa1d37e/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 c11af8296bfd5ac190948fd112a042e269f74b0ed21dcbb0764a4b3dab5067a3 ................................................................................................................................... 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_62055933-ecc9-45b3-b79c-d55e5aa1d37e/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62055933-ecc9-45b3-b79c-d55e5aa1d37e/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_62055933-ecc9-45b3-b79c-d55e5aa1d37e/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62055933-ecc9-45b3-b79c-d55e5aa1d37e/bin/uautomizer-UnR33cPsHg/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test16.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62055933-ecc9-45b3-b79c-d55e5aa1d37e/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_62055933-ecc9-45b3-b79c-d55e5aa1d37e/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 c11af8296bfd5ac190948fd112a042e269f74b0ed21dcbb0764a4b3dab5067a3 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 08:48:44,691 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 08:48:44,694 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 08:48:44,765 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 08:48:44,766 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 08:48:44,770 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 08:48:44,773 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 08:48:44,777 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 08:48:44,780 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 08:48:44,787 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 08:48:44,788 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 08:48:44,791 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 08:48:44,791 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 08:48:44,794 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 08:48:44,797 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 08:48:44,807 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 08:48:44,809 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 08:48:44,811 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 08:48:44,814 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 08:48:44,826 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 08:48:44,829 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 08:48:44,832 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 08:48:44,834 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 08:48:44,835 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 08:48:44,846 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 08:48:44,846 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 08:48:44,847 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 08:48:44,849 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 08:48:44,850 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 08:48:44,852 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 08:48:44,853 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 08:48:44,854 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 08:48:44,857 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 08:48:44,858 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 08:48:44,861 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 08:48:44,861 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 08:48:44,862 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 08:48:44,862 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 08:48:44,863 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 08:48:44,864 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 08:48:44,865 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 08:48:44,866 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62055933-ecc9-45b3-b79c-d55e5aa1d37e/bin/uautomizer-UnR33cPsHg/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-10-28 08:48:44,915 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 08:48:44,915 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 08:48:44,916 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 08:48:44,916 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 08:48:44,924 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 08:48:44,924 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 08:48:44,925 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 08:48:44,925 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 08:48:44,925 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 08:48:44,925 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 08:48:44,927 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 08:48:44,927 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 08:48:44,927 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 08:48:44,927 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-28 08:48:44,928 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-28 08:48:44,928 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-28 08:48:44,928 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 08:48:44,928 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-28 08:48:44,928 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 08:48:44,929 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 08:48:44,929 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 08:48:44,929 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 08:48:44,929 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 08:48:44,930 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 08:48:44,930 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 08:48:44,930 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 08:48:44,930 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 08:48:44,931 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 08:48:44,931 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 08:48:44,932 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_62055933-ecc9-45b3-b79c-d55e5aa1d37e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62055933-ecc9-45b3-b79c-d55e5aa1d37e/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c11af8296bfd5ac190948fd112a042e269f74b0ed21dcbb0764a4b3dab5067a3 [2021-10-28 08:48:45,256 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 08:48:45,283 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 08:48:45,287 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 08:48:45,289 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 08:48:45,290 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 08:48:45,291 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62055933-ecc9-45b3-b79c-d55e5aa1d37e/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/ldv-memsafety/memleaks_test16.i [2021-10-28 08:48:45,376 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62055933-ecc9-45b3-b79c-d55e5aa1d37e/bin/uautomizer-UnR33cPsHg/data/90e9ebf2d/1be30e4d4b4c42a882714b4c09e74c5a/FLAG0bb5ca73c [2021-10-28 08:48:46,058 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 08:48:46,059 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62055933-ecc9-45b3-b79c-d55e5aa1d37e/sv-benchmarks/c/ldv-memsafety/memleaks_test16.i [2021-10-28 08:48:46,077 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62055933-ecc9-45b3-b79c-d55e5aa1d37e/bin/uautomizer-UnR33cPsHg/data/90e9ebf2d/1be30e4d4b4c42a882714b4c09e74c5a/FLAG0bb5ca73c [2021-10-28 08:48:46,375 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62055933-ecc9-45b3-b79c-d55e5aa1d37e/bin/uautomizer-UnR33cPsHg/data/90e9ebf2d/1be30e4d4b4c42a882714b4c09e74c5a [2021-10-28 08:48:46,377 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 08:48:46,379 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-28 08:48:46,380 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 08:48:46,380 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 08:48:46,384 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 08:48:46,385 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:48:46" (1/1) ... [2021-10-28 08:48:46,386 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c444715 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:48:46, skipping insertion in model container [2021-10-28 08:48:46,386 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:48:46" (1/1) ... [2021-10-28 08:48:46,393 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 08:48:46,436 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 08:48:46,964 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:48:46,990 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-10-28 08:48:46,991 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@39d112fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:48:46, skipping insertion in model container [2021-10-28 08:48:46,991 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 08:48:46,993 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-10-28 08:48:46,997 INFO L168 Benchmark]: Toolchain (without parser) took 615.12 ms. Allocated memory was 88.1 MB in the beginning and 130.0 MB in the end (delta: 41.9 MB). Free memory was 49.8 MB in the beginning and 102.6 MB in the end (delta: -52.8 MB). Peak memory consumption was 6.5 MB. Max. memory is 16.1 GB. [2021-10-28 08:48:46,999 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 88.1 MB. Free memory was 68.3 MB in the beginning and 68.3 MB in the end (delta: 43.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:48:47,002 INFO L168 Benchmark]: CACSL2BoogieTranslator took 612.55 ms. Allocated memory was 88.1 MB in the beginning and 130.0 MB in the end (delta: 41.9 MB). Free memory was 49.6 MB in the beginning and 102.6 MB in the end (delta: -53.0 MB). Peak memory consumption was 6.5 MB. Max. memory is 16.1 GB. [2021-10-28 08:48:47,004 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 88.1 MB. Free memory was 68.3 MB in the beginning and 68.3 MB in the end (delta: 43.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 612.55 ms. Allocated memory was 88.1 MB in the beginning and 130.0 MB in the end (delta: 41.9 MB). Free memory was 49.6 MB in the beginning and 102.6 MB in the end (delta: -53.0 MB). Peak memory consumption was 6.5 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 08:48:49,412 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 08:48:49,415 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 08:48:49,451 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 08:48:49,451 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 08:48:49,453 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 08:48:49,455 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 08:48:49,458 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 08:48:49,461 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 08:48:49,462 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 08:48:49,464 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 08:48:49,466 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 08:48:49,467 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 08:48:49,468 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 08:48:49,470 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 08:48:49,472 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 08:48:49,474 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 08:48:49,475 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 08:48:49,478 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 08:48:49,481 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 08:48:49,483 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 08:48:49,485 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 08:48:49,487 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 08:48:49,488 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 08:48:49,493 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 08:48:49,493 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 08:48:49,499 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 08:48:49,500 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 08:48:49,501 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 08:48:49,502 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 08:48:49,503 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 08:48:49,504 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 08:48:49,505 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 08:48:49,505 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 08:48:49,507 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 08:48:49,507 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 08:48:49,508 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 08:48:49,508 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 08:48:49,508 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 08:48:49,519 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 08:48:49,520 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 08:48:49,521 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62055933-ecc9-45b3-b79c-d55e5aa1d37e/bin/uautomizer-UnR33cPsHg/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-10-28 08:48:49,550 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 08:48:49,551 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 08:48:49,551 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 08:48:49,551 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 08:48:49,553 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 08:48:49,553 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 08:48:49,553 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 08:48:49,553 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 08:48:49,554 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 08:48:49,554 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 08:48:49,554 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 08:48:49,554 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 08:48:49,554 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 08:48:49,555 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-28 08:48:49,555 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-28 08:48:49,555 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-28 08:48:49,555 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 08:48:49,556 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-28 08:48:49,556 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-28 08:48:49,556 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-28 08:48:49,556 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 08:48:49,556 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 08:48:49,557 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 08:48:49,557 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 08:48:49,557 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 08:48:49,557 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 08:48:49,558 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 08:48:49,558 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 08:48:49,558 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-28 08:48:49,558 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-28 08:48:49,558 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 08:48:49,559 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-28 08:48:49,559 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_62055933-ecc9-45b3-b79c-d55e5aa1d37e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62055933-ecc9-45b3-b79c-d55e5aa1d37e/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c11af8296bfd5ac190948fd112a042e269f74b0ed21dcbb0764a4b3dab5067a3 [2021-10-28 08:48:49,923 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 08:48:49,950 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 08:48:49,954 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 08:48:49,956 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 08:48:49,959 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 08:48:49,960 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62055933-ecc9-45b3-b79c-d55e5aa1d37e/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/ldv-memsafety/memleaks_test16.i [2021-10-28 08:48:50,035 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62055933-ecc9-45b3-b79c-d55e5aa1d37e/bin/uautomizer-UnR33cPsHg/data/c2b073e35/9a9a2d52887f423d939238e9307ce622/FLAG78ca64aa1 [2021-10-28 08:48:50,771 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 08:48:50,772 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62055933-ecc9-45b3-b79c-d55e5aa1d37e/sv-benchmarks/c/ldv-memsafety/memleaks_test16.i [2021-10-28 08:48:50,791 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62055933-ecc9-45b3-b79c-d55e5aa1d37e/bin/uautomizer-UnR33cPsHg/data/c2b073e35/9a9a2d52887f423d939238e9307ce622/FLAG78ca64aa1 [2021-10-28 08:48:51,027 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62055933-ecc9-45b3-b79c-d55e5aa1d37e/bin/uautomizer-UnR33cPsHg/data/c2b073e35/9a9a2d52887f423d939238e9307ce622 [2021-10-28 08:48:51,030 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 08:48:51,031 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-28 08:48:51,032 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 08:48:51,033 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 08:48:51,046 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 08:48:51,047 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:48:51" (1/1) ... [2021-10-28 08:48:51,048 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4dfe111e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:48:51, skipping insertion in model container [2021-10-28 08:48:51,048 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:48:51" (1/1) ... [2021-10-28 08:48:51,061 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 08:48:51,128 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 08:48:51,570 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:48:51,593 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-28 08:48:51,614 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 08:48:51,681 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:48:51,688 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 08:48:51,735 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:48:51,781 INFO L208 MainTranslator]: Completed translation [2021-10-28 08:48:51,781 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:48:51 WrapperNode [2021-10-28 08:48:51,781 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 08:48:51,782 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 08:48:51,783 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 08:48:51,783 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 08:48:51,794 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:48:51" (1/1) ... [2021-10-28 08:48:51,794 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:48:51" (1/1) ... [2021-10-28 08:48:51,817 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:48:51" (1/1) ... [2021-10-28 08:48:51,817 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:48:51" (1/1) ... [2021-10-28 08:48:51,849 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:48:51" (1/1) ... [2021-10-28 08:48:51,855 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:48:51" (1/1) ... [2021-10-28 08:48:51,861 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:48:51" (1/1) ... [2021-10-28 08:48:51,872 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 08:48:51,873 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 08:48:51,873 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 08:48:51,873 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 08:48:51,874 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:48:51" (1/1) ... [2021-10-28 08:48:51,883 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 08:48:51,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62055933-ecc9-45b3-b79c-d55e5aa1d37e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:48:51,924 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62055933-ecc9-45b3-b79c-d55e5aa1d37e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 08:48:51,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62055933-ecc9-45b3-b79c-d55e5aa1d37e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 08:48:51,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-10-28 08:48:51,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 08:48:51,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-10-28 08:48:51,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-10-28 08:48:51,983 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-10-28 08:48:51,984 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-10-28 08:48:51,984 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-10-28 08:48:51,984 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-10-28 08:48:51,984 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-10-28 08:48:51,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2021-10-28 08:48:51,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2021-10-28 08:48:51,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-10-28 08:48:51,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-10-28 08:48:51,985 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2021-10-28 08:48:51,985 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2021-10-28 08:48:51,986 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2021-10-28 08:48:51,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2021-10-28 08:48:51,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2021-10-28 08:48:51,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2021-10-28 08:48:51,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2021-10-28 08:48:51,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2021-10-28 08:48:51,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2021-10-28 08:48:51,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2021-10-28 08:48:51,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2021-10-28 08:48:51,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-10-28 08:48:51,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-10-28 08:48:51,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2021-10-28 08:48:51,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2021-10-28 08:48:51,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2021-10-28 08:48:51,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2021-10-28 08:48:51,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2021-10-28 08:48:51,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2021-10-28 08:48:51,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2021-10-28 08:48:51,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2021-10-28 08:48:51,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2021-10-28 08:48:51,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2021-10-28 08:48:51,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2021-10-28 08:48:51,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2021-10-28 08:48:51,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2021-10-28 08:48:51,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2021-10-28 08:48:51,991 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-10-28 08:48:51,991 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2021-10-28 08:48:51,991 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_16 [2021-10-28 08:48:51,991 INFO L138 BoogieDeclarations]: Found implementation of procedure free_16 [2021-10-28 08:48:51,991 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2021-10-28 08:48:51,992 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-10-28 08:48:51,992 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-10-28 08:48:51,992 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-10-28 08:48:51,993 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-10-28 08:48:51,993 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-10-28 08:48:51,993 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-10-28 08:48:51,993 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-10-28 08:48:51,994 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-10-28 08:48:51,994 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-10-28 08:48:51,994 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-10-28 08:48:51,994 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-10-28 08:48:51,994 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-10-28 08:48:51,995 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-10-28 08:48:51,995 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-10-28 08:48:51,995 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-10-28 08:48:51,995 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-10-28 08:48:51,995 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-10-28 08:48:51,996 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-10-28 08:48:51,996 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-10-28 08:48:51,996 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-10-28 08:48:51,996 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-10-28 08:48:51,997 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-10-28 08:48:51,997 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-10-28 08:48:51,997 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-10-28 08:48:51,997 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-10-28 08:48:51,997 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-10-28 08:48:51,998 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-10-28 08:48:51,998 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-10-28 08:48:51,998 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-10-28 08:48:51,998 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-10-28 08:48:51,998 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-10-28 08:48:51,999 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-10-28 08:48:51,999 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-10-28 08:48:51,999 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-10-28 08:48:51,999 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-10-28 08:48:51,999 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-10-28 08:48:52,000 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-10-28 08:48:52,000 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-10-28 08:48:52,000 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-10-28 08:48:52,000 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-10-28 08:48:52,000 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-10-28 08:48:52,001 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-10-28 08:48:52,001 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-10-28 08:48:52,001 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-10-28 08:48:52,001 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-10-28 08:48:52,001 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-10-28 08:48:52,002 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-10-28 08:48:52,002 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-10-28 08:48:52,002 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-10-28 08:48:52,002 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-10-28 08:48:52,002 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-10-28 08:48:52,003 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-10-28 08:48:52,003 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-10-28 08:48:52,003 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-10-28 08:48:52,003 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-10-28 08:48:52,003 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-10-28 08:48:52,004 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-10-28 08:48:52,004 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-10-28 08:48:52,004 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-10-28 08:48:52,004 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-10-28 08:48:52,004 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-10-28 08:48:52,004 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-10-28 08:48:52,005 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-10-28 08:48:52,005 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-10-28 08:48:52,005 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-10-28 08:48:52,005 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-10-28 08:48:52,005 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-10-28 08:48:52,006 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-10-28 08:48:52,006 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-10-28 08:48:52,006 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-10-28 08:48:52,006 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-10-28 08:48:52,006 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-10-28 08:48:52,007 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-10-28 08:48:52,007 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-10-28 08:48:52,007 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-10-28 08:48:52,007 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-10-28 08:48:52,007 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-10-28 08:48:52,008 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-10-28 08:48:52,008 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-10-28 08:48:52,008 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-10-28 08:48:52,008 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-10-28 08:48:52,008 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-10-28 08:48:52,009 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-10-28 08:48:52,009 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-10-28 08:48:52,009 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-10-28 08:48:52,009 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-10-28 08:48:52,009 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-10-28 08:48:52,010 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-10-28 08:48:52,010 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-10-28 08:48:52,010 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-10-28 08:48:52,010 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-10-28 08:48:52,010 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-10-28 08:48:52,011 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-10-28 08:48:52,011 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-10-28 08:48:52,011 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-10-28 08:48:52,011 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-10-28 08:48:52,011 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-10-28 08:48:52,011 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-10-28 08:48:52,012 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-10-28 08:48:52,012 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-10-28 08:48:52,012 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-10-28 08:48:52,012 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-10-28 08:48:52,012 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-10-28 08:48:52,013 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-10-28 08:48:52,013 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-10-28 08:48:52,013 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-10-28 08:48:52,013 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-10-28 08:48:52,013 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-10-28 08:48:52,013 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-10-28 08:48:52,014 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-10-28 08:48:52,014 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-10-28 08:48:52,014 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-10-28 08:48:52,014 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-10-28 08:48:52,014 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2021-10-28 08:48:52,015 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2021-10-28 08:48:52,015 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-10-28 08:48:52,015 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-10-28 08:48:52,015 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-10-28 08:48:52,015 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-28 08:48:52,015 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-10-28 08:48:52,016 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-10-28 08:48:52,016 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2021-10-28 08:48:52,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-28 08:48:52,016 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2021-10-28 08:48:52,016 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2021-10-28 08:48:52,017 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2021-10-28 08:48:52,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-28 08:48:52,017 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2021-10-28 08:48:52,017 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2021-10-28 08:48:52,017 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2021-10-28 08:48:52,018 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2021-10-28 08:48:52,018 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-10-28 08:48:52,018 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2021-10-28 08:48:52,018 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 08:48:52,018 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2021-10-28 08:48:52,018 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2021-10-28 08:48:52,019 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-10-28 08:48:52,019 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-10-28 08:48:52,019 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2021-10-28 08:48:52,019 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-28 08:48:52,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-28 08:48:52,020 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2021-10-28 08:48:52,020 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2021-10-28 08:48:52,020 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-10-28 08:48:52,020 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2021-10-28 08:48:52,020 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2021-10-28 08:48:52,020 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2021-10-28 08:48:52,021 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2021-10-28 08:48:52,021 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2021-10-28 08:48:52,021 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2021-10-28 08:48:52,021 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2021-10-28 08:48:52,021 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2021-10-28 08:48:52,022 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2021-10-28 08:48:52,022 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2021-10-28 08:48:52,022 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2021-10-28 08:48:52,022 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-10-28 08:48:52,022 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-10-28 08:48:52,022 INFO L130 BoogieDeclarations]: Found specification of procedure g [2021-10-28 08:48:52,023 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_16 [2021-10-28 08:48:52,023 INFO L130 BoogieDeclarations]: Found specification of procedure free_16 [2021-10-28 08:48:52,023 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2021-10-28 08:48:52,023 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-10-28 08:48:52,023 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-10-28 08:48:52,024 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 08:48:52,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-28 08:48:52,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 08:48:52,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-10-28 08:48:52,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-10-28 08:48:52,024 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-10-28 08:48:52,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-10-28 08:48:52,025 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-10-28 08:48:52,568 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 08:48:53,002 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 08:48:53,289 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 08:48:53,289 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-10-28 08:48:53,292 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:48:53 BoogieIcfgContainer [2021-10-28 08:48:53,293 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 08:48:53,294 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 08:48:53,295 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 08:48:53,298 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 08:48:53,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 08:48:51" (1/3) ... [2021-10-28 08:48:53,299 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cb6ea77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 08:48:53, skipping insertion in model container [2021-10-28 08:48:53,299 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:48:51" (2/3) ... [2021-10-28 08:48:53,300 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cb6ea77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 08:48:53, skipping insertion in model container [2021-10-28 08:48:53,300 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:48:53" (3/3) ... [2021-10-28 08:48:53,302 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test16.i [2021-10-28 08:48:53,308 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 08:48:53,308 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 74 error locations. [2021-10-28 08:48:53,357 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 08:48:53,364 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-28 08:48:53,364 INFO L340 AbstractCegarLoop]: Starting to check reachability of 74 error locations. [2021-10-28 08:48:53,382 INFO L276 IsEmpty]: Start isEmpty. Operand has 107 states, 60 states have (on average 1.4833333333333334) internal successors, (89), 81 states have internal predecessors, (89), 13 states have call successors, (13), 12 states have call predecessors, (13), 12 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2021-10-28 08:48:53,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-28 08:48:53,391 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:48:53,392 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 08:48:53,392 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting free_16Err0ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-28 08:48:53,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:48:53,398 INFO L85 PathProgramCache]: Analyzing trace with hash 997159282, now seen corresponding path program 1 times [2021-10-28 08:48:53,411 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 08:48:53,411 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1330861584] [2021-10-28 08:48:53,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:48:53,413 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 08:48:53,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62055933-ecc9-45b3-b79c-d55e5aa1d37e/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 08:48:53,416 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62055933-ecc9-45b3-b79c-d55e5aa1d37e/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 08:48:53,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62055933-ecc9-45b3-b79c-d55e5aa1d37e/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-28 08:48:53,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:48:53,593 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 08:48:53,598 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:48:53,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:48:53,782 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 08:48:53,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:48:53,913 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 08:48:53,914 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1330861584] [2021-10-28 08:48:53,914 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1330861584] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 08:48:53,915 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:48:53,915 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 8 [2021-10-28 08:48:53,917 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563247824] [2021-10-28 08:48:53,923 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 08:48:53,923 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 08:48:53,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 08:48:53,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-10-28 08:48:53,947 INFO L87 Difference]: Start difference. First operand has 107 states, 60 states have (on average 1.4833333333333334) internal successors, (89), 81 states have internal predecessors, (89), 13 states have call successors, (13), 12 states have call predecessors, (13), 12 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 8 states, 8 states have (on average 1.5) internal successors, (12), 7 states have internal predecessors, (12), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-28 08:48:54,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:48:54,103 INFO L93 Difference]: Finished difference Result 49 states and 51 transitions. [2021-10-28 08:48:54,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 08:48:54,105 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.5) internal successors, (12), 7 states have internal predecessors, (12), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2021-10-28 08:48:54,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:48:54,116 INFO L225 Difference]: With dead ends: 49 [2021-10-28 08:48:54,116 INFO L226 Difference]: Without dead ends: 46 [2021-10-28 08:48:54,118 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-10-28 08:48:54,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2021-10-28 08:48:54,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 42. [2021-10-28 08:48:54,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 24 states have (on average 1.25) internal successors, (30), 28 states have internal predecessors, (30), 7 states have call successors, (7), 7 states have call predecessors, (7), 7 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2021-10-28 08:48:54,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 44 transitions. [2021-10-28 08:48:54,160 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 44 transitions. Word has length 17 [2021-10-28 08:48:54,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:48:54,161 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 44 transitions. [2021-10-28 08:48:54,161 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.5) internal successors, (12), 7 states have internal predecessors, (12), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-28 08:48:54,161 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 44 transitions. [2021-10-28 08:48:54,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-28 08:48:54,162 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:48:54,162 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:48:54,178 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62055933-ecc9-45b3-b79c-d55e5aa1d37e/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-28 08:48:54,378 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62055933-ecc9-45b3-b79c-d55e5aa1d37e/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 08:48:54,378 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 70 more)] === [2021-10-28 08:48:54,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:48:54,379 INFO L85 PathProgramCache]: Analyzing trace with hash 965683329, now seen corresponding path program 1 times [2021-10-28 08:48:54,380 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 08:48:54,380 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1412223837] [2021-10-28 08:48:54,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:48:54,380 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 08:48:54,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62055933-ecc9-45b3-b79c-d55e5aa1d37e/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 08:48:54,381 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62055933-ecc9-45b3-b79c-d55e5aa1d37e/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 08:48:54,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62055933-ecc9-45b3-b79c-d55e5aa1d37e/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-28 08:48:54,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:48:54,562 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-28 08:48:54,564 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:48:54,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:48:54,694 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 08:48:54,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:48:54,875 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 08:48:54,875 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1412223837] [2021-10-28 08:48:54,876 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1412223837] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 08:48:54,876 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:48:54,876 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-28 08:48:54,876 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958163301] [2021-10-28 08:48:54,883 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 08:48:54,884 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 08:48:54,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:48:54,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:48:54,888 INFO L87 Difference]: Start difference. First operand 42 states and 44 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-10-28 08:48:54,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:48:54,935 INFO L93 Difference]: Finished difference Result 54 states and 57 transitions. [2021-10-28 08:48:54,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:48:54,936 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 21 [2021-10-28 08:48:54,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:48:54,938 INFO L225 Difference]: With dead ends: 54 [2021-10-28 08:48:54,938 INFO L226 Difference]: Without dead ends: 43 [2021-10-28 08:48:54,939 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 40 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 08:48:54,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2021-10-28 08:48:54,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2021-10-28 08:48:54,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 29 states have internal predecessors, (29), 7 states have call successors, (7), 6 states have call predecessors, (7), 8 states have return successors, (9), 7 states have call predecessors, (9), 6 states have call successors, (9) [2021-10-28 08:48:54,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 45 transitions. [2021-10-28 08:48:54,950 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 45 transitions. Word has length 21 [2021-10-28 08:48:54,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:48:54,950 INFO L470 AbstractCegarLoop]: Abstraction has 43 states and 45 transitions. [2021-10-28 08:48:54,951 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-10-28 08:48:54,951 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 45 transitions. [2021-10-28 08:48:54,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-28 08:48:54,952 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:48:54,952 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:48:54,979 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62055933-ecc9-45b3-b79c-d55e5aa1d37e/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-10-28 08:48:55,169 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62055933-ecc9-45b3-b79c-d55e5aa1d37e/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 08:48:55,169 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting free_16Err0ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-28 08:48:55,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:48:55,170 INFO L85 PathProgramCache]: Analyzing trace with hash -1103285257, now seen corresponding path program 1 times [2021-10-28 08:48:55,171 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 08:48:55,171 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [48926057] [2021-10-28 08:48:55,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:48:55,172 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 08:48:55,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62055933-ecc9-45b3-b79c-d55e5aa1d37e/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 08:48:55,187 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62055933-ecc9-45b3-b79c-d55e5aa1d37e/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 08:48:55,192 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62055933-ecc9-45b3-b79c-d55e5aa1d37e/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-28 08:48:55,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:48:55,382 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-28 08:48:55,386 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:48:55,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:48:55,586 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 08:48:55,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:48:55,770 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 08:48:55,770 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [48926057] [2021-10-28 08:48:55,770 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [48926057] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 08:48:55,770 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:48:55,778 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 8 [2021-10-28 08:48:55,778 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707145063] [2021-10-28 08:48:55,779 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-28 08:48:55,779 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 08:48:55,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-28 08:48:55,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-10-28 08:48:55,780 INFO L87 Difference]: Start difference. First operand 43 states and 45 transitions. Second operand has 9 states, 7 states have (on average 2.0) internal successors, (14), 6 states have internal predecessors, (14), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 08:48:55,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:48:55,837 INFO L93 Difference]: Finished difference Result 42 states and 44 transitions. [2021-10-28 08:48:55,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 08:48:55,838 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 2.0) internal successors, (14), 6 states have internal predecessors, (14), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 23 [2021-10-28 08:48:55,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:48:55,839 INFO L225 Difference]: With dead ends: 42 [2021-10-28 08:48:55,840 INFO L226 Difference]: Without dead ends: 42 [2021-10-28 08:48:55,840 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-10-28 08:48:55,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2021-10-28 08:48:55,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2021-10-28 08:48:55,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 28 states have internal predecessors, (28), 7 states have call successors, (7), 6 states have call predecessors, (7), 8 states have return successors, (9), 7 states have call predecessors, (9), 6 states have call successors, (9) [2021-10-28 08:48:55,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 44 transitions. [2021-10-28 08:48:55,852 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 44 transitions. Word has length 23 [2021-10-28 08:48:55,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:48:55,852 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 44 transitions. [2021-10-28 08:48:55,853 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 2.0) internal successors, (14), 6 states have internal predecessors, (14), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 08:48:55,853 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 44 transitions. [2021-10-28 08:48:55,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-28 08:48:55,854 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:48:55,854 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:48:55,869 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62055933-ecc9-45b3-b79c-d55e5aa1d37e/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-28 08:48:56,055 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62055933-ecc9-45b3-b79c-d55e5aa1d37e/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 08:48:56,055 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting free_16Err1ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-28 08:48:56,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:48:56,056 INFO L85 PathProgramCache]: Analyzing trace with hash 157895800, now seen corresponding path program 1 times [2021-10-28 08:48:56,056 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 08:48:56,056 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1459756464] [2021-10-28 08:48:56,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:48:56,057 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 08:48:56,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62055933-ecc9-45b3-b79c-d55e5aa1d37e/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 08:48:56,058 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62055933-ecc9-45b3-b79c-d55e5aa1d37e/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 08:48:56,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62055933-ecc9-45b3-b79c-d55e5aa1d37e/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-28 08:48:56,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:48:56,268 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-28 08:48:56,270 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:48:56,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:48:56,671 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 08:48:57,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:48:57,075 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 08:48:57,076 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1459756464] [2021-10-28 08:48:57,076 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1459756464] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 08:48:57,076 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:48:57,076 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 8] imperfect sequences [] total 16 [2021-10-28 08:48:57,076 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187149078] [2021-10-28 08:48:57,077 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-28 08:48:57,077 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 08:48:57,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-28 08:48:57,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2021-10-28 08:48:57,078 INFO L87 Difference]: Start difference. First operand 42 states and 44 transitions. Second operand has 17 states, 14 states have (on average 2.142857142857143) internal successors, (30), 11 states have internal predecessors, (30), 4 states have call successors, (11), 4 states have call predecessors, (11), 6 states have return successors, (6), 6 states have call predecessors, (6), 2 states have call successors, (6) [2021-10-28 08:48:57,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:48:57,484 INFO L93 Difference]: Finished difference Result 53 states and 54 transitions. [2021-10-28 08:48:57,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-28 08:48:57,486 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 14 states have (on average 2.142857142857143) internal successors, (30), 11 states have internal predecessors, (30), 4 states have call successors, (11), 4 states have call predecessors, (11), 6 states have return successors, (6), 6 states have call predecessors, (6), 2 states have call successors, (6) Word has length 24 [2021-10-28 08:48:57,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:48:57,487 INFO L225 Difference]: With dead ends: 53 [2021-10-28 08:48:57,487 INFO L226 Difference]: Without dead ends: 51 [2021-10-28 08:48:57,488 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=307, Unknown=0, NotChecked=0, Total=380 [2021-10-28 08:48:57,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2021-10-28 08:48:57,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 46. [2021-10-28 08:48:57,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 29 states have (on average 1.1379310344827587) internal successors, (33), 31 states have internal predecessors, (33), 7 states have call successors, (7), 7 states have call predecessors, (7), 8 states have return successors, (8), 7 states have call predecessors, (8), 6 states have call successors, (8) [2021-10-28 08:48:57,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 48 transitions. [2021-10-28 08:48:57,499 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 48 transitions. Word has length 24 [2021-10-28 08:48:57,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:48:57,500 INFO L470 AbstractCegarLoop]: Abstraction has 46 states and 48 transitions. [2021-10-28 08:48:57,503 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 14 states have (on average 2.142857142857143) internal successors, (30), 11 states have internal predecessors, (30), 4 states have call successors, (11), 4 states have call predecessors, (11), 6 states have return successors, (6), 6 states have call predecessors, (6), 2 states have call successors, (6) [2021-10-28 08:48:57,503 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 48 transitions. [2021-10-28 08:48:57,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-28 08:48:57,505 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:48:57,505 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:48:57,514 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62055933-ecc9-45b3-b79c-d55e5aa1d37e/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-28 08:48:57,714 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62055933-ecc9-45b3-b79c-d55e5aa1d37e/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 08:48:57,714 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting free_16Err2ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-28 08:48:57,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:48:57,715 INFO L85 PathProgramCache]: Analyzing trace with hash 599802905, now seen corresponding path program 1 times [2021-10-28 08:48:57,715 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 08:48:57,715 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1986455423] [2021-10-28 08:48:57,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:48:57,716 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 08:48:57,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62055933-ecc9-45b3-b79c-d55e5aa1d37e/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 08:48:57,716 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62055933-ecc9-45b3-b79c-d55e5aa1d37e/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 08:48:57,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62055933-ecc9-45b3-b79c-d55e5aa1d37e/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-28 08:48:57,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:48:57,918 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-28 08:48:57,920 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:48:57,981 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-28 08:48:58,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:48:58,105 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 08:48:58,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:48:58,315 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 08:48:58,315 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1986455423] [2021-10-28 08:48:58,315 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1986455423] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 08:48:58,315 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:48:58,316 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 8 [2021-10-28 08:48:58,316 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461902021] [2021-10-28 08:48:58,316 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-28 08:48:58,316 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 08:48:58,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-28 08:48:58,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-10-28 08:48:58,317 INFO L87 Difference]: Start difference. First operand 46 states and 48 transitions. Second operand has 9 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 6 states have internal predecessors, (16), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 08:48:58,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:48:58,458 INFO L93 Difference]: Finished difference Result 50 states and 51 transitions. [2021-10-28 08:48:58,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 08:48:58,460 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 6 states have internal predecessors, (16), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 25 [2021-10-28 08:48:58,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:48:58,461 INFO L225 Difference]: With dead ends: 50 [2021-10-28 08:48:58,461 INFO L226 Difference]: Without dead ends: 50 [2021-10-28 08:48:58,461 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 35 SyntacticMatches, 7 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-10-28 08:48:58,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-10-28 08:48:58,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 46. [2021-10-28 08:48:58,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 29 states have (on average 1.103448275862069) internal successors, (32), 31 states have internal predecessors, (32), 7 states have call successors, (7), 7 states have call predecessors, (7), 8 states have return successors, (8), 7 states have call predecessors, (8), 6 states have call successors, (8) [2021-10-28 08:48:58,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 47 transitions. [2021-10-28 08:48:58,467 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 47 transitions. Word has length 25 [2021-10-28 08:48:58,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:48:58,468 INFO L470 AbstractCegarLoop]: Abstraction has 46 states and 47 transitions. [2021-10-28 08:48:58,468 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 6 states have internal predecessors, (16), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 08:48:58,468 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 47 transitions. [2021-10-28 08:48:58,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-28 08:48:58,469 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:48:58,469 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:48:58,482 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62055933-ecc9-45b3-b79c-d55e5aa1d37e/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-28 08:48:58,670 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62055933-ecc9-45b3-b79c-d55e5aa1d37e/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 08:48:58,670 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting free_16Err2ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-28 08:48:58,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:48:58,671 INFO L85 PathProgramCache]: Analyzing trace with hash 306399898, now seen corresponding path program 1 times [2021-10-28 08:48:58,671 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 08:48:58,671 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [195525507] [2021-10-28 08:48:58,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:48:58,672 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 08:48:58,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62055933-ecc9-45b3-b79c-d55e5aa1d37e/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 08:48:58,672 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62055933-ecc9-45b3-b79c-d55e5aa1d37e/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 08:48:58,673 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62055933-ecc9-45b3-b79c-d55e5aa1d37e/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-28 08:48:58,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:48:58,831 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-28 08:48:58,832 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:48:58,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:48:58,967 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 08:48:59,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:48:59,102 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 08:48:59,102 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [195525507] [2021-10-28 08:48:59,102 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [195525507] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 08:48:59,102 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:48:59,102 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 8 [2021-10-28 08:48:59,103 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487841484] [2021-10-28 08:48:59,103 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-28 08:48:59,104 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 08:48:59,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-28 08:48:59,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-10-28 08:48:59,106 INFO L87 Difference]: Start difference. First operand 46 states and 47 transitions. Second operand has 9 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 6 states have internal predecessors, (16), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 08:48:59,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:48:59,184 INFO L93 Difference]: Finished difference Result 47 states and 48 transitions. [2021-10-28 08:48:59,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 08:48:59,185 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 6 states have internal predecessors, (16), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 25 [2021-10-28 08:48:59,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:48:59,187 INFO L225 Difference]: With dead ends: 47 [2021-10-28 08:48:59,187 INFO L226 Difference]: Without dead ends: 47 [2021-10-28 08:48:59,187 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-10-28 08:48:59,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2021-10-28 08:48:59,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 45. [2021-10-28 08:48:59,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 29 states have (on average 1.0689655172413792) internal successors, (31), 30 states have internal predecessors, (31), 7 states have call successors, (7), 7 states have call predecessors, (7), 8 states have return successors, (8), 7 states have call predecessors, (8), 6 states have call successors, (8) [2021-10-28 08:48:59,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 46 transitions. [2021-10-28 08:48:59,193 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 46 transitions. Word has length 25 [2021-10-28 08:48:59,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:48:59,194 INFO L470 AbstractCegarLoop]: Abstraction has 45 states and 46 transitions. [2021-10-28 08:48:59,194 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 6 states have internal predecessors, (16), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 08:48:59,194 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 46 transitions. [2021-10-28 08:48:59,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-28 08:48:59,195 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:48:59,195 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:48:59,210 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62055933-ecc9-45b3-b79c-d55e5aa1d37e/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-10-28 08:48:59,407 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62055933-ecc9-45b3-b79c-d55e5aa1d37e/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 08:48:59,407 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-28 08:48:59,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:48:59,408 INFO L85 PathProgramCache]: Analyzing trace with hash 1123950726, now seen corresponding path program 1 times [2021-10-28 08:48:59,408 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 08:48:59,409 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [104679591] [2021-10-28 08:48:59,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:48:59,409 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 08:48:59,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62055933-ecc9-45b3-b79c-d55e5aa1d37e/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 08:48:59,410 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62055933-ecc9-45b3-b79c-d55e5aa1d37e/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 08:48:59,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62055933-ecc9-45b3-b79c-d55e5aa1d37e/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-28 08:48:59,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:48:59,587 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 08:48:59,589 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:48:59,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:48:59,727 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 08:48:59,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:48:59,961 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 08:48:59,962 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [104679591] [2021-10-28 08:48:59,962 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [104679591] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 08:48:59,962 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:48:59,962 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 9 [2021-10-28 08:48:59,962 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116308131] [2021-10-28 08:48:59,962 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-28 08:48:59,962 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 08:48:59,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-28 08:48:59,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-10-28 08:48:59,963 INFO L87 Difference]: Start difference. First operand 45 states and 46 transitions. Second operand has 9 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 9 states have internal predecessors, (20), 3 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2021-10-28 08:49:00,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:49:00,032 INFO L93 Difference]: Finished difference Result 47 states and 47 transitions. [2021-10-28 08:49:00,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 08:49:00,033 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 9 states have internal predecessors, (20), 3 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) Word has length 27 [2021-10-28 08:49:00,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:49:00,034 INFO L225 Difference]: With dead ends: 47 [2021-10-28 08:49:00,034 INFO L226 Difference]: Without dead ends: 45 [2021-10-28 08:49:00,035 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-10-28 08:49:00,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2021-10-28 08:49:00,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 31. [2021-10-28 08:49:00,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 19 states have (on average 1.0526315789473684) internal successors, (20), 19 states have internal predecessors, (20), 6 states have call successors, (6), 6 states have call predecessors, (6), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-10-28 08:49:00,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 31 transitions. [2021-10-28 08:49:00,039 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 31 transitions. Word has length 27 [2021-10-28 08:49:00,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:49:00,039 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 31 transitions. [2021-10-28 08:49:00,040 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 9 states have internal predecessors, (20), 3 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2021-10-28 08:49:00,040 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 31 transitions. [2021-10-28 08:49:00,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-10-28 08:49:00,041 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:49:00,041 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:49:00,055 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62055933-ecc9-45b3-b79c-d55e5aa1d37e/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-28 08:49:00,251 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62055933-ecc9-45b3-b79c-d55e5aa1d37e/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 08:49:00,254 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-28 08:49:00,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:49:00,254 INFO L85 PathProgramCache]: Analyzing trace with hash 2141245867, now seen corresponding path program 1 times [2021-10-28 08:49:00,255 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 08:49:00,255 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1627648220] [2021-10-28 08:49:00,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:49:00,255 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 08:49:00,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62055933-ecc9-45b3-b79c-d55e5aa1d37e/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 08:49:00,256 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62055933-ecc9-45b3-b79c-d55e5aa1d37e/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 08:49:00,257 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62055933-ecc9-45b3-b79c-d55e5aa1d37e/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-28 08:49:00,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:49:00,491 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 22 conjunts are in the unsatisfiable core [2021-10-28 08:49:00,493 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:49:00,522 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-10-28 08:49:00,522 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2021-10-28 08:49:05,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:49:05,207 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 08:49:21,795 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_11| (Array (_ BitVec 32) (_ BitVec 1)))) (or (= |v_old(#valid)_BEFORE_CALL_11| (store |c_#valid| c_entry_point_~p~1.base (_ bv0 1))) (exists ((v_entry_point_~p~1.base_20 (_ BitVec 32))) (and (not (= |v_old(#valid)_BEFORE_CALL_11| (store |c_old(#valid)| v_entry_point_~p~1.base_20 (_ bv0 1)))) (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_old(#valid)| v_entry_point_~p~1.base_20)))))))))))))))) is different from false [2021-10-28 08:49:21,887 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 08:49:21,888 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1627648220] [2021-10-28 08:49:21,888 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Substitution failed: {(= (store |v_old(#valid)_BEFORE_CALL_12| v_entry_point_~p~1.base_20 (_ bv0 1)) v_prenex_1)=(= (select v_prenex_1 v_antiDerIndex_entry0_1) (select (store |v_old(#valid)_BEFORE_CALL_12| v_entry_point_~p~1.base_20 (_ bv0 1)) v_antiDerIndex_entry0_1))} [2021-10-28 08:49:21,889 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [396891132] [2021-10-28 08:49:21,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:49:21,889 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-28 08:49:21,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62055933-ecc9-45b3-b79c-d55e5aa1d37e/bin/uautomizer-UnR33cPsHg/cvc4 [2021-10-28 08:49:21,893 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62055933-ecc9-45b3-b79c-d55e5aa1d37e/bin/uautomizer-UnR33cPsHg/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-28 08:49:21,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62055933-ecc9-45b3-b79c-d55e5aa1d37e/bin/uautomizer-UnR33cPsHg/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2021-10-28 08:49:22,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:49:22,260 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 23 conjunts are in the unsatisfiable core [2021-10-28 08:49:22,262 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:49:22,299 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-10-28 08:49:22,300 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 24 treesize of output 27 [2021-10-28 08:49:22,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:49:22,703 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 08:49:27,111 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_17| (Array (_ BitVec 32) (_ BitVec 1)))) (or (= |v_old(#valid)_BEFORE_CALL_17| |c_#valid|) (exists ((v_entry_point_~p~1.base_20 (_ BitVec 32))) (and (not (= |v_old(#valid)_BEFORE_CALL_17| (store |c_old(#valid)| v_entry_point_~p~1.base_20 (_ bv0 1)))) (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_old(#valid)| v_entry_point_~p~1.base_20)))))))))))))))) is different from false [2021-10-28 08:49:27,233 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_17| (Array (_ BitVec 32) (_ BitVec 1)))) (or (= |v_old(#valid)_BEFORE_CALL_17| (store |c_#valid| c_entry_point_~p~1.base (_ bv0 1))) (exists ((v_entry_point_~p~1.base_20 (_ BitVec 32))) (and (not (= |v_old(#valid)_BEFORE_CALL_17| (store |c_old(#valid)| v_entry_point_~p~1.base_20 (_ bv0 1)))) (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_old(#valid)| v_entry_point_~p~1.base_20)))))))))))))))) is different from false [2021-10-28 08:49:27,446 INFO L354 Elim1Store]: treesize reduction 16, result has 78.1 percent of original size [2021-10-28 08:49:27,447 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 77 treesize of output 124 [2021-10-28 08:49:28,048 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-28 08:49:28,049 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 34 treesize of output 38 [2021-10-28 08:49:28,149 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_17| (Array (_ BitVec 32) (_ BitVec 1)))) (or (= |v_old(#valid)_BEFORE_CALL_17| (store |c_#valid| |c_entry_point_#t~ret40.base| (_ bv0 1))) (exists ((v_entry_point_~p~1.base_20 (_ BitVec 32))) (and (not (= |v_old(#valid)_BEFORE_CALL_17| (store |c_old(#valid)| v_entry_point_~p~1.base_20 (_ bv0 1)))) (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_old(#valid)| v_entry_point_~p~1.base_20)))))))))))))))) is different from false [2021-10-28 08:49:28,342 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_entry_point_#t~ret40.base_53| (_ BitVec 32)) (|v_old(#valid)_BEFORE_CALL_17| (Array (_ BitVec 32) (_ BitVec 1)))) (or (= |v_old(#valid)_BEFORE_CALL_17| (store |c_#valid| |v_entry_point_#t~ret40.base_53| (_ bv0 1))) (not (= (_ bv0 1) (bvneg (bvneg (select |c_#valid| |v_entry_point_#t~ret40.base_53|))))) (exists ((v_entry_point_~p~1.base_20 (_ BitVec 32))) (and (not (= |v_old(#valid)_BEFORE_CALL_17| (store |c_old(#valid)| v_entry_point_~p~1.base_20 (_ bv0 1)))) (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_old(#valid)| v_entry_point_~p~1.base_20)))))))))))))))) is different from false [2021-10-28 08:49:28,591 INFO L354 Elim1Store]: treesize reduction 16, result has 78.1 percent of original size [2021-10-28 08:49:28,592 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 84 treesize of output 131 [2021-10-28 08:49:29,539 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-28 08:49:29,540 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 40 treesize of output 44 [2021-10-28 08:49:29,799 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2021-10-28 08:49:30,572 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-28 08:49:30,572 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 67 treesize of output 107 [2021-10-28 08:49:33,431 WARN L860 $PredicateComparison]: unable to prove that (or (forall ((v_antiDerIndex_entry0_7 (_ BitVec 32)) (v_arrayElimCell_14 (_ BitVec 1))) (let ((.cse0 (bvneg v_arrayElimCell_14))) (or (= (_ bv0 1) (bvadd (select (store |c_#valid| |c_alloc_16_#res.base| (_ bv0 1)) v_antiDerIndex_entry0_7) .cse0)) (not (= (_ bv0 1) .cse0))))) (exists ((|v_entry_point_#t~ret40.base_53| (_ BitVec 32))) (= (_ bv0 1) (bvneg (bvneg (bvneg (select |c_old(#valid)| |v_entry_point_#t~ret40.base_53|))))))) is different from true [2021-10-28 08:49:35,510 WARN L860 $PredicateComparison]: unable to prove that (or (forall ((v_antiDerIndex_entry0_7 (_ BitVec 32)) (v_arrayElimCell_14 (_ BitVec 1))) (let ((.cse0 (bvneg v_arrayElimCell_14))) (or (= (_ bv0 1) (bvadd (select (store |c_#valid| |c_alloc_16_#t~ret38.base| (_ bv0 1)) v_antiDerIndex_entry0_7) .cse0)) (not (= (_ bv0 1) .cse0))))) (exists ((|v_entry_point_#t~ret40.base_53| (_ BitVec 32))) (= (_ bv0 1) (bvneg (bvneg (bvneg (select |c_old(#valid)| |v_entry_point_#t~ret40.base_53|))))))) is different from true [2021-10-28 08:49:37,605 WARN L860 $PredicateComparison]: unable to prove that (or (forall ((v_antiDerIndex_entry0_7 (_ BitVec 32)) (v_arrayElimCell_14 (_ BitVec 1)) (|v_alloc_16_#t~ret38.base_72| (_ BitVec 32))) (let ((.cse0 (bvneg v_arrayElimCell_14))) (or (not (= (_ bv0 1) (bvneg (bvneg (select |c_#valid| |v_alloc_16_#t~ret38.base_72|))))) (= (_ bv0 1) (bvadd (select (store |c_#valid| |v_alloc_16_#t~ret38.base_72| (_ bv0 1)) v_antiDerIndex_entry0_7) .cse0)) (not (= (_ bv0 1) .cse0))))) (exists ((|v_entry_point_#t~ret40.base_53| (_ BitVec 32))) (= (_ bv0 1) (bvneg (bvneg (bvneg (select |c_old(#valid)| |v_entry_point_#t~ret40.base_53|))))))) is different from true [2021-10-28 08:49:39,676 WARN L860 $PredicateComparison]: unable to prove that (or (exists ((v_antiDerIndex_entry0_7 (_ BitVec 32)) (v_arrayElimCell_14 (_ BitVec 1)) (|v_alloc_16_#t~ret38.base_72| (_ BitVec 32))) (let ((.cse0 (bvneg v_arrayElimCell_14))) (and (= (_ bv0 1) (bvneg (bvneg (bvneg (select |c_old(#valid)| |v_alloc_16_#t~ret38.base_72|))))) (not (= (_ bv0 1) (bvadd (bvneg (select (store |c_old(#valid)| |v_alloc_16_#t~ret38.base_72| (_ bv0 1)) v_antiDerIndex_entry0_7)) (bvneg .cse0)))) (= (_ bv0 1) .cse0)))) (forall ((|v_old(#valid)_BEFORE_CALL_20| (Array (_ BitVec 32) (_ BitVec 1)))) (exists ((|v_entry_point_#t~ret40.base_53| (_ BitVec 32))) (= (_ bv0 1) (bvneg (bvneg (bvneg (select |v_old(#valid)_BEFORE_CALL_20| |v_entry_point_#t~ret40.base_53|))))))) (forall ((v_antiDerIndex_entry0_7 (_ BitVec 32)) (v_arrayElimCell_14 (_ BitVec 1))) (let ((.cse1 (bvneg v_arrayElimCell_14))) (or (= (_ bv0 1) (bvadd (bvneg .cse1) (bvneg (select (store |c_#valid| |c_ldv_malloc_#res.base| (_ bv0 1)) v_antiDerIndex_entry0_7)))) (not (= (_ bv0 1) .cse1)))))) is different from true [2021-10-28 08:49:41,840 WARN L860 $PredicateComparison]: unable to prove that (or (forall ((|v_ldv_malloc_#res.base_58| (_ BitVec 32)) (v_antiDerIndex_entry0_7 (_ BitVec 32)) (v_arrayElimCell_14 (_ BitVec 1))) (let ((.cse0 (bvneg v_arrayElimCell_14))) (or (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (select (store |c_#valid| |v_ldv_malloc_#res.base_58| (_ bv0 1)) v_antiDerIndex_entry0_7))))) (bvneg (bvneg (bvneg (bvneg .cse0)))))) (not (= (_ bv0 1) .cse0)) (not (= (_ bv0 1) (bvneg (select |c_#valid| |v_ldv_malloc_#res.base_58|))))))) (exists ((v_antiDerIndex_entry0_7 (_ BitVec 32)) (v_arrayElimCell_14 (_ BitVec 1)) (|v_alloc_16_#t~ret38.base_72| (_ BitVec 32))) (let ((.cse1 (bvneg v_arrayElimCell_14))) (and (= (_ bv0 1) (bvneg (bvneg (bvneg (select |c_old(#valid)| |v_alloc_16_#t~ret38.base_72|))))) (not (= (_ bv0 1) (bvadd (bvneg (select (store |c_old(#valid)| |v_alloc_16_#t~ret38.base_72| (_ bv0 1)) v_antiDerIndex_entry0_7)) (bvneg .cse1)))) (= (_ bv0 1) .cse1)))) (forall ((|v_old(#valid)_BEFORE_CALL_20| (Array (_ BitVec 32) (_ BitVec 1)))) (exists ((|v_entry_point_#t~ret40.base_53| (_ BitVec 32))) (= (_ bv0 1) (bvneg (bvneg (bvneg (select |v_old(#valid)_BEFORE_CALL_20| |v_entry_point_#t~ret40.base_53|)))))))) is different from true [2021-10-28 08:49:42,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:49:42,120 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [396891132] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 08:49:42,120 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:49:42,120 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13, 12] imperfect sequences [] total 23 [2021-10-28 08:49:42,120 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782871788] [2021-10-28 08:49:42,121 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-10-28 08:49:42,121 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 08:49:42,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-10-28 08:49:42,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=183, Unknown=28, NotChecked=370, Total=650 [2021-10-28 08:49:42,123 INFO L87 Difference]: Start difference. First operand 31 states and 31 transitions. Second operand has 24 states, 19 states have (on average 2.0) internal successors, (38), 17 states have internal predecessors, (38), 9 states have call successors, (11), 7 states have call predecessors, (11), 9 states have return successors, (10), 10 states have call predecessors, (10), 8 states have call successors, (10) [2021-10-28 08:50:04,357 WARN L838 $PredicateComparison]: unable to prove that (and (= |c_old(#valid)| |c_#valid|) (or (forall ((|v_ldv_malloc_#res.base_58| (_ BitVec 32)) (v_antiDerIndex_entry0_7 (_ BitVec 32)) (v_arrayElimCell_14 (_ BitVec 1))) (let ((.cse0 (bvneg v_arrayElimCell_14))) (or (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (select (store |c_#valid| |v_ldv_malloc_#res.base_58| (_ bv0 1)) v_antiDerIndex_entry0_7))))) (bvneg (bvneg (bvneg (bvneg .cse0)))))) (not (= (_ bv0 1) .cse0)) (not (= (_ bv0 1) (bvneg (select |c_#valid| |v_ldv_malloc_#res.base_58|))))))) (exists ((v_antiDerIndex_entry0_7 (_ BitVec 32)) (v_arrayElimCell_14 (_ BitVec 1)) (|v_alloc_16_#t~ret38.base_72| (_ BitVec 32))) (let ((.cse1 (bvneg v_arrayElimCell_14))) (and (= (_ bv0 1) (bvneg (bvneg (bvneg (select |c_old(#valid)| |v_alloc_16_#t~ret38.base_72|))))) (not (= (_ bv0 1) (bvadd (bvneg (select (store |c_old(#valid)| |v_alloc_16_#t~ret38.base_72| (_ bv0 1)) v_antiDerIndex_entry0_7)) (bvneg .cse1)))) (= (_ bv0 1) .cse1)))) (forall ((|v_old(#valid)_BEFORE_CALL_20| (Array (_ BitVec 32) (_ BitVec 1)))) (exists ((|v_entry_point_#t~ret40.base_53| (_ BitVec 32))) (= (_ bv0 1) (bvneg (bvneg (bvneg (select |v_old(#valid)_BEFORE_CALL_20| |v_entry_point_#t~ret40.base_53|)))))))) (exists ((|~#ldv_global_msg_list~0.base| (_ BitVec 32))) (and (= (_ bv0 1) (bvadd (bvneg (bvneg (select |c_old(#valid)| |~#ldv_global_msg_list~0.base|))) (_ bv1 1))) (or (= (_ bv0 1) (select |c_old(#valid)| (_ bv0 32))) (= (_ bv0 32) |~#ldv_global_msg_list~0.base|))))) is different from false [2021-10-28 08:50:34,252 WARN L207 SmtUtils]: Spent 16.05 s on a formula simplification. DAG size of input: 51 DAG size of output: 42 [2021-10-28 08:51:04,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:51:04,714 INFO L93 Difference]: Finished difference Result 41 states and 41 transitions. [2021-10-28 08:51:04,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-28 08:51:04,715 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 19 states have (on average 2.0) internal successors, (38), 17 states have internal predecessors, (38), 9 states have call successors, (11), 7 states have call predecessors, (11), 9 states have return successors, (10), 10 states have call predecessors, (10), 8 states have call successors, (10) Word has length 30 [2021-10-28 08:51:04,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:51:04,716 INFO L225 Difference]: With dead ends: 41 [2021-10-28 08:51:04,716 INFO L226 Difference]: Without dead ends: 31 [2021-10-28 08:51:04,717 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 69 SyntacticMatches, 8 SemanticMatches, 29 ConstructedPredicates, 11 IntricatePredicates, 1 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 78.8s TimeCoverageRelationStatistics Valid=99, Invalid=278, Unknown=47, NotChecked=506, Total=930 [2021-10-28 08:51:04,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-10-28 08:51:04,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2021-10-28 08:51:04,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 19 states have (on average 1.0) internal successors, (19), 19 states have internal predecessors, (19), 6 states have call successors, (6), 6 states have call predecessors, (6), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-10-28 08:51:04,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 30 transitions. [2021-10-28 08:51:04,722 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 30 transitions. Word has length 30 [2021-10-28 08:51:04,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:51:04,722 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 30 transitions. [2021-10-28 08:51:04,722 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 19 states have (on average 2.0) internal successors, (38), 17 states have internal predecessors, (38), 9 states have call successors, (11), 7 states have call predecessors, (11), 9 states have return successors, (10), 10 states have call predecessors, (10), 8 states have call successors, (10) [2021-10-28 08:51:04,723 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 30 transitions. [2021-10-28 08:51:04,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-10-28 08:51:04,724 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:51:04,724 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:51:04,750 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62055933-ecc9-45b3-b79c-d55e5aa1d37e/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-28 08:51:04,938 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62055933-ecc9-45b3-b79c-d55e5aa1d37e/bin/uautomizer-UnR33cPsHg/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2021-10-28 08:51:05,135 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62055933-ecc9-45b3-b79c-d55e5aa1d37e/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62055933-ecc9-45b3-b79c-d55e5aa1d37e/bin/uautomizer-UnR33cPsHg/cvc4 --incremental --print-success --lang smt [2021-10-28 08:51:05,135 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-28 08:51:05,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:51:05,136 INFO L85 PathProgramCache]: Analyzing trace with hash 1144173514, now seen corresponding path program 1 times [2021-10-28 08:51:05,136 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 08:51:05,136 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1047970701] [2021-10-28 08:51:05,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:51:05,136 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 08:51:05,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62055933-ecc9-45b3-b79c-d55e5aa1d37e/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 08:51:05,137 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62055933-ecc9-45b3-b79c-d55e5aa1d37e/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 08:51:05,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62055933-ecc9-45b3-b79c-d55e5aa1d37e/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-28 08:51:05,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:51:05,417 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 22 conjunts are in the unsatisfiable core [2021-10-28 08:51:05,419 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:51:05,444 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-10-28 08:51:05,444 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 15 [2021-10-28 08:51:05,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:51:05,862 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 08:51:06,174 INFO L354 Elim1Store]: treesize reduction 10, result has 73.0 percent of original size [2021-10-28 08:51:06,175 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 2 case distinctions, treesize of input 32 treesize of output 46 [2021-10-28 08:51:07,839 INFO L354 Elim1Store]: treesize reduction 11, result has 60.7 percent of original size [2021-10-28 08:51:07,840 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 38 treesize of output 43 [2021-10-28 08:51:08,679 INFO L354 Elim1Store]: treesize reduction 11, result has 60.7 percent of original size [2021-10-28 08:51:08,679 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 81 treesize of output 86 [2021-10-28 08:51:10,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:51:10,114 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 08:51:10,114 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1047970701] [2021-10-28 08:51:10,114 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1047970701] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 08:51:10,115 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:51:10,115 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 14] imperfect sequences [] total 23 [2021-10-28 08:51:10,115 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514113827] [2021-10-28 08:51:10,116 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-10-28 08:51:10,116 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 08:51:10,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-10-28 08:51:10,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=466, Unknown=0, NotChecked=0, Total=552 [2021-10-28 08:51:10,118 INFO L87 Difference]: Start difference. First operand 31 states and 30 transitions. Second operand has 24 states, 20 states have (on average 1.85) internal successors, (37), 16 states have internal predecessors, (37), 9 states have call successors, (11), 6 states have call predecessors, (11), 9 states have return successors, (10), 9 states have call predecessors, (10), 7 states have call successors, (10) [2021-10-28 08:51:10,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:51:10,795 INFO L93 Difference]: Finished difference Result 30 states and 29 transitions. [2021-10-28 08:51:10,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-28 08:51:10,795 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 20 states have (on average 1.85) internal successors, (37), 16 states have internal predecessors, (37), 9 states have call successors, (11), 6 states have call predecessors, (11), 9 states have return successors, (10), 9 states have call predecessors, (10), 7 states have call successors, (10) Word has length 30 [2021-10-28 08:51:10,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:51:10,796 INFO L225 Difference]: With dead ends: 30 [2021-10-28 08:51:10,796 INFO L226 Difference]: Without dead ends: 0 [2021-10-28 08:51:10,797 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 34 SyntacticMatches, 3 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=173, Invalid=757, Unknown=0, NotChecked=0, Total=930 [2021-10-28 08:51:10,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-28 08:51:10,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-28 08:51:10,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:51:10,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-28 08:51:10,798 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 30 [2021-10-28 08:51:10,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:51:10,798 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 08:51:10,798 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 20 states have (on average 1.85) internal successors, (37), 16 states have internal predecessors, (37), 9 states have call successors, (11), 6 states have call predecessors, (11), 9 states have return successors, (10), 9 states have call predecessors, (10), 7 states have call successors, (10) [2021-10-28 08:51:10,799 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-28 08:51:10,799 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-28 08:51:10,801 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_msg_allocErr0REQUIRES_VIOLATION [2021-10-28 08:51:10,801 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_msg_allocErr1REQUIRES_VIOLATION [2021-10-28 08:51:10,802 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_kref_initErr0REQUIRES_VIOLATION [2021-10-28 08:51:10,802 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_kref_initErr1REQUIRES_VIOLATION [2021-10-28 08:51:10,802 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_atomic_add_returnErr0REQUIRES_VIOLATION [2021-10-28 08:51:10,802 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_atomic_add_returnErr1REQUIRES_VIOLATION [2021-10-28 08:51:10,802 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_atomic_add_returnErr2REQUIRES_VIOLATION [2021-10-28 08:51:10,802 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_atomic_add_returnErr3REQUIRES_VIOLATION [2021-10-28 08:51:10,802 INFO L764 garLoopResultBuilder]: Registering result SAFE for location LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION [2021-10-28 08:51:10,802 INFO L764 garLoopResultBuilder]: Registering result SAFE for location LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION [2021-10-28 08:51:10,802 INFO L764 garLoopResultBuilder]: Registering result SAFE for location LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION [2021-10-28 08:51:10,803 INFO L764 garLoopResultBuilder]: Registering result SAFE for location LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION [2021-10-28 08:51:10,803 INFO L764 garLoopResultBuilder]: Registering result SAFE for location __ldv_list_addErr0REQUIRES_VIOLATION [2021-10-28 08:51:10,803 INFO L764 garLoopResultBuilder]: Registering result SAFE for location __ldv_list_addErr1REQUIRES_VIOLATION [2021-10-28 08:51:10,803 INFO L764 garLoopResultBuilder]: Registering result SAFE for location __ldv_list_addErr2REQUIRES_VIOLATION [2021-10-28 08:51:10,803 INFO L764 garLoopResultBuilder]: Registering result SAFE for location __ldv_list_addErr3REQUIRES_VIOLATION [2021-10-28 08:51:10,804 INFO L764 garLoopResultBuilder]: Registering result SAFE for location __ldv_list_addErr4REQUIRES_VIOLATION [2021-10-28 08:51:10,804 INFO L764 garLoopResultBuilder]: Registering result SAFE for location __ldv_list_addErr5REQUIRES_VIOLATION [2021-10-28 08:51:10,804 INFO L764 garLoopResultBuilder]: Registering result SAFE for location __ldv_list_addErr6REQUIRES_VIOLATION [2021-10-28 08:51:10,804 INFO L764 garLoopResultBuilder]: Registering result SAFE for location __ldv_list_addErr7REQUIRES_VIOLATION [2021-10-28 08:51:10,804 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_dev_set_drvdataErr0REQUIRES_VIOLATION [2021-10-28 08:51:10,804 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_dev_set_drvdataErr1REQUIRES_VIOLATION [2021-10-28 08:51:10,804 INFO L764 garLoopResultBuilder]: Registering result SAFE for location __ldv_list_delErr0REQUIRES_VIOLATION [2021-10-28 08:51:10,804 INFO L764 garLoopResultBuilder]: Registering result SAFE for location __ldv_list_delErr1REQUIRES_VIOLATION [2021-10-28 08:51:10,805 INFO L764 garLoopResultBuilder]: Registering result SAFE for location __ldv_list_delErr2REQUIRES_VIOLATION [2021-10-28 08:51:10,805 INFO L764 garLoopResultBuilder]: Registering result SAFE for location __ldv_list_delErr3REQUIRES_VIOLATION [2021-10-28 08:51:10,805 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_atomic_sub_returnErr0REQUIRES_VIOLATION [2021-10-28 08:51:10,805 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_atomic_sub_returnErr1REQUIRES_VIOLATION [2021-10-28 08:51:10,805 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_atomic_sub_returnErr2REQUIRES_VIOLATION [2021-10-28 08:51:10,805 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_atomic_sub_returnErr3REQUIRES_VIOLATION [2021-10-28 08:51:10,805 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_list_addErr0REQUIRES_VIOLATION [2021-10-28 08:51:10,806 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_list_addErr1REQUIRES_VIOLATION [2021-10-28 08:51:10,806 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_destroy_msgsErr0REQUIRES_VIOLATION [2021-10-28 08:51:10,806 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_destroy_msgsErr1REQUIRES_VIOLATION [2021-10-28 08:51:10,806 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_destroy_msgsErr2REQUIRES_VIOLATION [2021-10-28 08:51:10,806 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_destroy_msgsErr3REQUIRES_VIOLATION [2021-10-28 08:51:10,807 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_destroy_msgsErr4REQUIRES_VIOLATION [2021-10-28 08:51:10,807 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_destroy_msgsErr5REQUIRES_VIOLATION [2021-10-28 08:51:10,807 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_dev_get_drvdataErr0REQUIRES_VIOLATION [2021-10-28 08:51:10,807 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_dev_get_drvdataErr1REQUIRES_VIOLATION [2021-10-28 08:51:10,807 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_msg_freeErr0REQUIRES_VIOLATION [2021-10-28 08:51:10,808 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_msg_freeErr1REQUIRES_VIOLATION [2021-10-28 08:51:10,808 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 08:51:10,808 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 08:51:10,808 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 08:51:10,808 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 08:51:10,809 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 08:51:10,809 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 08:51:10,809 INFO L764 garLoopResultBuilder]: Registering result SAFE for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-10-28 08:51:10,809 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_msg_fillErr0REQUIRES_VIOLATION [2021-10-28 08:51:10,810 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_msg_fillErr1REQUIRES_VIOLATION [2021-10-28 08:51:10,810 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_msg_fillErr2REQUIRES_VIOLATION [2021-10-28 08:51:10,810 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_msg_fillErr3REQUIRES_VIOLATION [2021-10-28 08:51:10,810 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_msg_fillErr4REQUIRES_VIOLATION [2021-10-28 08:51:10,810 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_msg_fillErr5REQUIRES_VIOLATION [2021-10-28 08:51:10,811 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_kobject_cleanupErr0REQUIRES_VIOLATION [2021-10-28 08:51:10,811 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_kobject_cleanupErr1REQUIRES_VIOLATION [2021-10-28 08:51:10,811 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 08:51:10,811 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 08:51:10,811 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 08:51:10,812 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 08:51:10,812 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 08:51:10,812 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 08:51:10,812 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_kobject_createErr0REQUIRES_VIOLATION [2021-10-28 08:51:10,812 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_kobject_createErr1REQUIRES_VIOLATION [2021-10-28 08:51:10,813 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_list_delErr0REQUIRES_VIOLATION [2021-10-28 08:51:10,813 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_list_delErr1REQUIRES_VIOLATION [2021-10-28 08:51:10,813 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_list_delErr2REQUIRES_VIOLATION [2021-10-28 08:51:10,813 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_list_delErr3REQUIRES_VIOLATION [2021-10-28 08:51:10,814 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_list_add_tailErr0REQUIRES_VIOLATION [2021-10-28 08:51:10,814 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_list_add_tailErr1REQUIRES_VIOLATION [2021-10-28 08:51:10,814 INFO L764 garLoopResultBuilder]: Registering result SAFE for location free_16Err0ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 08:51:10,814 INFO L764 garLoopResultBuilder]: Registering result SAFE for location free_16Err1ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 08:51:10,814 INFO L764 garLoopResultBuilder]: Registering result SAFE for location free_16Err2ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 08:51:10,823 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62055933-ecc9-45b3-b79c-d55e5aa1d37e/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-10-28 08:51:11,015 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62055933-ecc9-45b3-b79c-d55e5aa1d37e/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 08:51:11,018 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:51:11,020 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 08:51:11,024 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 08:51:11 BoogieIcfgContainer [2021-10-28 08:51:11,024 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 08:51:11,024 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 08:51:11,025 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 08:51:11,025 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 08:51:11,026 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:48:53" (3/4) ... [2021-10-28 08:51:11,028 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-28 08:51:11,035 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_submit_msg [2021-10-28 08:51:11,036 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.setCurrentRoundingMode [2021-10-28 08:51:11,042 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_positive [2021-10-28 08:51:11,043 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __uint64_identity [2021-10-28 08:51:11,043 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_msg_free [2021-10-28 08:51:11,043 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2021-10-28 08:51:11,043 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ##fun~$Pointer$~TO~VOID [2021-10-28 08:51:11,043 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_nonpositive [2021-10-28 08:51:11,043 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure #Ultimate.meminit [2021-10-28 08:51:11,044 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_msg_alloc [2021-10-28 08:51:11,044 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_kobject_init_internal [2021-10-28 08:51:11,044 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_kref_init [2021-10-28 08:51:11,044 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_msg_fill [2021-10-28 08:51:11,044 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_kref_sub [2021-10-28 08:51:11,044 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_atomic_add_return [2021-10-28 08:51:11,045 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __bswap_32 [2021-10-28 08:51:11,045 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_kobject_cleanup [2021-10-28 08:51:11,045 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure #Ultimate.C_memcpy [2021-10-28 08:51:11,045 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure LDV_INIT_LIST_HEAD [2021-10-28 08:51:11,045 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __ldv_list_add [2021-10-28 08:51:11,045 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_malloc [2021-10-28 08:51:11,045 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_dev_set_drvdata [2021-10-28 08:51:11,046 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_kobject_create [2021-10-28 08:51:11,046 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_kobject_del [2021-10-28 08:51:11,046 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __ldv_list_del [2021-10-28 08:51:11,046 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __bswap_64 [2021-10-28 08:51:11,046 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_list_del [2021-10-28 08:51:11,046 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_kref_get [2021-10-28 08:51:11,047 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_kobject_put [2021-10-28 08:51:11,047 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __uint32_identity [2021-10-28 08:51:11,047 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_kobject_init [2021-10-28 08:51:11,047 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_atomic_sub_return [2021-10-28 08:51:11,047 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_list_add_tail [2021-10-28 08:51:11,047 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __uint16_identity [2021-10-28 08:51:11,048 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure free_16 [2021-10-28 08:51:11,048 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure entry_point [2021-10-28 08:51:11,048 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_list_add [2021-10-28 08:51:11,048 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_destroy_msgs [2021-10-28 08:51:11,048 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure #Ultimate.C_memset [2021-10-28 08:51:11,048 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure f [2021-10-28 08:51:11,049 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_kobject_release [2021-10-28 08:51:11,049 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure g [2021-10-28 08:51:11,049 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure alloc_16 [2021-10-28 08:51:11,049 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2021-10-28 08:51:11,049 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_zalloc [2021-10-28 08:51:11,049 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_kref_put [2021-10-28 08:51:11,050 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_kobject_get [2021-10-28 08:51:11,050 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_dev_get_drvdata [2021-10-28 08:51:11,058 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 39 nodes and edges [2021-10-28 08:51:11,058 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-10-28 08:51:11,059 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-28 08:51:11,059 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-28 08:51:11,059 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 08:51:11,120 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62055933-ecc9-45b3-b79c-d55e5aa1d37e/bin/uautomizer-UnR33cPsHg/witness.graphml [2021-10-28 08:51:11,120 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 08:51:11,122 INFO L168 Benchmark]: Toolchain (without parser) took 140090.22 ms. Allocated memory was 62.9 MB in the beginning and 121.6 MB in the end (delta: 58.7 MB). Free memory was 41.8 MB in the beginning and 91.3 MB in the end (delta: -49.4 MB). Peak memory consumption was 72.0 MB. Max. memory is 16.1 GB. [2021-10-28 08:51:11,122 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 62.9 MB. Free memory is still 43.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:51:11,123 INFO L168 Benchmark]: CACSL2BoogieTranslator took 749.42 ms. Allocated memory is still 62.9 MB. Free memory was 41.7 MB in the beginning and 28.3 MB in the end (delta: 13.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-28 08:51:11,123 INFO L168 Benchmark]: Boogie Preprocessor took 89.40 ms. Allocated memory is still 62.9 MB. Free memory was 28.3 MB in the beginning and 23.5 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 08:51:11,124 INFO L168 Benchmark]: RCFGBuilder took 1420.23 ms. Allocated memory was 62.9 MB in the beginning and 90.2 MB in the end (delta: 27.3 MB). Free memory was 23.5 MB in the beginning and 55.7 MB in the end (delta: -32.1 MB). Peak memory consumption was 16.2 MB. Max. memory is 16.1 GB. [2021-10-28 08:51:11,125 INFO L168 Benchmark]: TraceAbstraction took 137729.44 ms. Allocated memory was 90.2 MB in the beginning and 121.6 MB in the end (delta: 31.5 MB). Free memory was 55.2 MB in the beginning and 29.6 MB in the end (delta: 25.6 MB). Peak memory consumption was 56.4 MB. Max. memory is 16.1 GB. [2021-10-28 08:51:11,125 INFO L168 Benchmark]: Witness Printer took 96.25 ms. Allocated memory is still 121.6 MB. Free memory was 29.6 MB in the beginning and 91.3 MB in the end (delta: -61.7 MB). Peak memory consumption was 2.3 MB. Max. memory is 16.1 GB. [2021-10-28 08:51:11,128 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 62.9 MB. Free memory is still 43.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 749.42 ms. Allocated memory is still 62.9 MB. Free memory was 41.7 MB in the beginning and 28.3 MB in the end (delta: 13.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 89.40 ms. Allocated memory is still 62.9 MB. Free memory was 28.3 MB in the beginning and 23.5 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1420.23 ms. Allocated memory was 62.9 MB in the beginning and 90.2 MB in the end (delta: 27.3 MB). Free memory was 23.5 MB in the beginning and 55.7 MB in the end (delta: -32.1 MB). Peak memory consumption was 16.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 137729.44 ms. Allocated memory was 90.2 MB in the beginning and 121.6 MB in the end (delta: 31.5 MB). Free memory was 55.2 MB in the beginning and 29.6 MB in the end (delta: 25.6 MB). Peak memory consumption was 56.4 MB. Max. memory is 16.1 GB. * Witness Printer took 96.25 ms. Allocated memory is still 121.6 MB. Free memory was 29.6 MB in the beginning and 91.3 MB in the end (delta: -61.7 MB). Peak memory consumption was 2.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 578]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 578]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 682]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 682]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 658]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 658]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 660]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 660]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 540]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 540]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 541]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 541]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 547]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 547]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 548]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 548]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 549]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 549]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 550]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 550]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 623]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 623]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 554]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 554]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 555]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 555]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 666]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 666]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 668]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 668]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 559]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 559]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 607]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 607]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 607]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 607]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 607]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 607]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 619]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 619]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 593]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 593]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 593]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 593]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 593]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 594]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 594]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 594]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 777]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 587]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 587]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 587]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 587]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 588]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 588]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 699]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 699]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 700]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 700]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 700]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 702]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 702]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 702]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 744]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 744]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 567]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 567]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 567]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 567]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 563]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 563]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 769]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 769]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 769]: free always succeeds For all program executions holds that free always succeeds at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 49 procedures, 347 locations, 74 error locations. Started 1 CEGAR loops. OverallTime: 137.6s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 84.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 261 SDtfs, 235 SDslu, 1278 SDs, 0 SdLazy, 808 SolverSat, 105 SolverUnsat, 19 SolverUnknown, 0 SolverNotchecked, 39.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 499 GetRequests, 363 SyntacticMatches, 18 SemanticMatches, 118 ConstructedPredicates, 11 IntricatePredicates, 1 DeprecatedPredicates, 367 ImplicationChecksByTransitivity, 80.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=107occurred in iteration=0, InterpolantAutomatonStates: 92, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 9 MinimizatonAttempts, 29 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 48.8s InterpolantComputationTime, 252 NumberOfCodeBlocks, 252 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 455 ConstructedInterpolants, 48 QuantifiedInterpolants, 3427 SizeOfPredicates, 26 NumberOfNonLiveVariables, 855 ConjunctsInSsa, 127 ConjunctsInUnsatCore, 19 InterpolantComputations, 19 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 74 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-28 08:51:11,189 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62055933-ecc9-45b3-b79c-d55e5aa1d37e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...