./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-races/race-2_2-container_of.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2b3d15-5b46-4d9a-9177-e099a664090f/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2b3d15-5b46-4d9a-9177-e099a664090f/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2b3d15-5b46-4d9a-9177-e099a664090f/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2b3d15-5b46-4d9a-9177-e099a664090f/bin/uautomizer-TMbwUNV5ro/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-races/race-2_2-container_of.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2b3d15-5b46-4d9a-9177-e099a664090f/bin/uautomizer-TMbwUNV5ro/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2b3d15-5b46-4d9a-9177-e099a664090f/bin/uautomizer-TMbwUNV5ro --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 dbdd132d1a656eb04120c9309772a096548e218c86a32fc06dd93d5ae981c163 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 18:28:51,730 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 18:28:51,732 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 18:28:51,776 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 18:28:51,777 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 18:28:51,778 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 18:28:51,779 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 18:28:51,781 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 18:28:51,789 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 18:28:51,797 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 18:28:51,797 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 18:28:51,798 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 18:28:51,799 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 18:28:51,800 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 18:28:51,801 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 18:28:51,802 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 18:28:51,803 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 18:28:51,808 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 18:28:51,811 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 18:28:51,816 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 18:28:51,824 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 18:28:51,828 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 18:28:51,829 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 18:28:51,832 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 18:28:51,836 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 18:28:51,839 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 18:28:51,839 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 18:28:51,840 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 18:28:51,842 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 18:28:51,843 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 18:28:51,844 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 18:28:51,845 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 18:28:51,847 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 18:28:51,848 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 18:28:51,850 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 18:28:51,851 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 18:28:51,852 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 18:28:51,852 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 18:28:51,852 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 18:28:51,853 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 18:28:51,854 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 18:28:51,855 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2b3d15-5b46-4d9a-9177-e099a664090f/bin/uautomizer-TMbwUNV5ro/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-11-18 18:28:51,888 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 18:28:51,888 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 18:28:51,888 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 18:28:51,889 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 18:28:51,889 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 18:28:51,890 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 18:28:51,891 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 18:28:51,891 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 18:28:51,891 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 18:28:51,891 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 18:28:51,892 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 18:28:51,892 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 18:28:51,892 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 18:28:51,892 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 18:28:51,893 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 18:28:51,893 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-18 18:28:51,893 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-18 18:28:51,893 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-18 18:28:51,894 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 18:28:51,894 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-18 18:28:51,894 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 18:28:51,894 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 18:28:51,895 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 18:28:51,895 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 18:28:51,895 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 18:28:51,895 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:28:51,896 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 18:28:51,896 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 18:28:51,896 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 18:28:51,896 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 18:28:51,897 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_fc2b3d15-5b46-4d9a-9177-e099a664090f/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2b3d15-5b46-4d9a-9177-e099a664090f/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dbdd132d1a656eb04120c9309772a096548e218c86a32fc06dd93d5ae981c163 [2022-11-18 18:28:52,195 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 18:28:52,218 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 18:28:52,221 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 18:28:52,222 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 18:28:52,223 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 18:28:52,224 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2b3d15-5b46-4d9a-9177-e099a664090f/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/ldv-races/race-2_2-container_of.i [2022-11-18 18:28:52,288 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2b3d15-5b46-4d9a-9177-e099a664090f/bin/uautomizer-TMbwUNV5ro/data/0d2ff7f25/4e7b683531684efb807996f98b10d65c/FLAGf946bd792 [2022-11-18 18:28:52,937 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 18:28:52,938 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2b3d15-5b46-4d9a-9177-e099a664090f/sv-benchmarks/c/ldv-races/race-2_2-container_of.i [2022-11-18 18:28:52,975 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2b3d15-5b46-4d9a-9177-e099a664090f/bin/uautomizer-TMbwUNV5ro/data/0d2ff7f25/4e7b683531684efb807996f98b10d65c/FLAGf946bd792 [2022-11-18 18:28:53,131 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2b3d15-5b46-4d9a-9177-e099a664090f/bin/uautomizer-TMbwUNV5ro/data/0d2ff7f25/4e7b683531684efb807996f98b10d65c [2022-11-18 18:28:53,133 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 18:28:53,135 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 18:28:53,137 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 18:28:53,138 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 18:28:53,141 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 18:28:53,142 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:28:53" (1/1) ... [2022-11-18 18:28:53,145 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@659ea1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:28:53, skipping insertion in model container [2022-11-18 18:28:53,145 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:28:53" (1/1) ... [2022-11-18 18:28:53,154 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 18:28:53,233 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 18:28:53,447 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-18 18:28:54,006 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2b3d15-5b46-4d9a-9177-e099a664090f/sv-benchmarks/c/ldv-races/race-2_2-container_of.i[75002,75015] [2022-11-18 18:28:54,052 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:28:54,065 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2022-11-18 18:28:54,076 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2ba29633 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:28:54, skipping insertion in model container [2022-11-18 18:28:54,077 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 18:28:54,081 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2022-11-18 18:28:54,083 INFO L158 Benchmark]: Toolchain (without parser) took 947.12ms. Allocated memory is still 148.9MB. Free memory was 106.7MB in the beginning and 115.1MB in the end (delta: -8.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-18 18:28:54,084 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 148.9MB. Free memory is still 126.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 18:28:54,086 INFO L158 Benchmark]: CACSL2BoogieTranslator took 943.37ms. Allocated memory is still 148.9MB. Free memory was 106.6MB in the beginning and 115.1MB in the end (delta: -8.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-18 18:28:54,088 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 148.9MB. Free memory is still 126.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 943.37ms. Allocated memory is still 148.9MB. Free memory was 106.6MB in the beginning and 115.1MB in the end (delta: -8.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 1691]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2b3d15-5b46-4d9a-9177-e099a664090f/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2b3d15-5b46-4d9a-9177-e099a664090f/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2b3d15-5b46-4d9a-9177-e099a664090f/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2b3d15-5b46-4d9a-9177-e099a664090f/bin/uautomizer-TMbwUNV5ro/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-races/race-2_2-container_of.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2b3d15-5b46-4d9a-9177-e099a664090f/bin/uautomizer-TMbwUNV5ro/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2b3d15-5b46-4d9a-9177-e099a664090f/bin/uautomizer-TMbwUNV5ro --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 dbdd132d1a656eb04120c9309772a096548e218c86a32fc06dd93d5ae981c163 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 18:28:56,116 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 18:28:56,118 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 18:28:56,145 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 18:28:56,146 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 18:28:56,153 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 18:28:56,155 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 18:28:56,161 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 18:28:56,163 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 18:28:56,164 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 18:28:56,165 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 18:28:56,166 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 18:28:56,166 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 18:28:56,167 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 18:28:56,168 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 18:28:56,170 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 18:28:56,170 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 18:28:56,178 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 18:28:56,181 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 18:28:56,191 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 18:28:56,194 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 18:28:56,195 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 18:28:56,196 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 18:28:56,197 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 18:28:56,201 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 18:28:56,201 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 18:28:56,201 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 18:28:56,202 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 18:28:56,203 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 18:28:56,204 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 18:28:56,204 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 18:28:56,205 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 18:28:56,206 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 18:28:56,207 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 18:28:56,208 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 18:28:56,208 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 18:28:56,209 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 18:28:56,209 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 18:28:56,210 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 18:28:56,212 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 18:28:56,213 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 18:28:56,218 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2b3d15-5b46-4d9a-9177-e099a664090f/bin/uautomizer-TMbwUNV5ro/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2022-11-18 18:28:56,260 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 18:28:56,263 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 18:28:56,264 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 18:28:56,264 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 18:28:56,265 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 18:28:56,265 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 18:28:56,267 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 18:28:56,267 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 18:28:56,268 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 18:28:56,268 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 18:28:56,269 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 18:28:56,270 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 18:28:56,270 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 18:28:56,270 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 18:28:56,275 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 18:28:56,275 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-18 18:28:56,275 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-18 18:28:56,275 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-18 18:28:56,276 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 18:28:56,276 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-18 18:28:56,276 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-18 18:28:56,276 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-18 18:28:56,276 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 18:28:56,277 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 18:28:56,277 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 18:28:56,277 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 18:28:56,278 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 18:28:56,278 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:28:56,278 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 18:28:56,278 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 18:28:56,279 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-18 18:28:56,279 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-18 18:28:56,279 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-18 18:28:56,280 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_fc2b3d15-5b46-4d9a-9177-e099a664090f/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2b3d15-5b46-4d9a-9177-e099a664090f/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dbdd132d1a656eb04120c9309772a096548e218c86a32fc06dd93d5ae981c163 [2022-11-18 18:28:56,668 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 18:28:56,694 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 18:28:56,697 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 18:28:56,698 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 18:28:56,701 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 18:28:56,702 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2b3d15-5b46-4d9a-9177-e099a664090f/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/ldv-races/race-2_2-container_of.i [2022-11-18 18:28:56,761 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2b3d15-5b46-4d9a-9177-e099a664090f/bin/uautomizer-TMbwUNV5ro/data/edf7492fb/e5f9eee43a27467eb3c76362e4470bc3/FLAGb5b1a6faa [2022-11-18 18:28:57,545 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 18:28:57,549 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2b3d15-5b46-4d9a-9177-e099a664090f/sv-benchmarks/c/ldv-races/race-2_2-container_of.i [2022-11-18 18:28:57,576 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2b3d15-5b46-4d9a-9177-e099a664090f/bin/uautomizer-TMbwUNV5ro/data/edf7492fb/e5f9eee43a27467eb3c76362e4470bc3/FLAGb5b1a6faa [2022-11-18 18:28:57,722 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2b3d15-5b46-4d9a-9177-e099a664090f/bin/uautomizer-TMbwUNV5ro/data/edf7492fb/e5f9eee43a27467eb3c76362e4470bc3 [2022-11-18 18:28:57,726 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 18:28:57,728 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 18:28:57,730 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 18:28:57,731 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 18:28:57,735 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 18:28:57,735 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:28:57" (1/1) ... [2022-11-18 18:28:57,737 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bae227 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:28:57, skipping insertion in model container [2022-11-18 18:28:57,737 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:28:57" (1/1) ... [2022-11-18 18:28:57,744 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 18:28:57,793 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 18:28:57,943 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-18 18:28:58,735 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2b3d15-5b46-4d9a-9177-e099a664090f/sv-benchmarks/c/ldv-races/race-2_2-container_of.i[75002,75015] [2022-11-18 18:28:58,784 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:28:58,805 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-18 18:28:58,829 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 18:28:58,833 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-18 18:28:58,886 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2b3d15-5b46-4d9a-9177-e099a664090f/sv-benchmarks/c/ldv-races/race-2_2-container_of.i[75002,75015] [2022-11-18 18:28:58,896 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:28:58,903 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 18:28:58,914 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-18 18:28:58,952 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2b3d15-5b46-4d9a-9177-e099a664090f/sv-benchmarks/c/ldv-races/race-2_2-container_of.i[75002,75015] [2022-11-18 18:28:58,981 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:28:59,105 INFO L208 MainTranslator]: Completed translation [2022-11-18 18:28:59,105 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:28:59 WrapperNode [2022-11-18 18:28:59,105 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 18:28:59,107 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 18:28:59,107 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 18:28:59,107 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 18:28:59,114 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:28:59" (1/1) ... [2022-11-18 18:28:59,197 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:28:59" (1/1) ... [2022-11-18 18:28:59,232 INFO L138 Inliner]: procedures = 472, calls = 48, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 113 [2022-11-18 18:28:59,233 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 18:28:59,233 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 18:28:59,234 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 18:28:59,234 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 18:28:59,244 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:28:59" (1/1) ... [2022-11-18 18:28:59,244 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:28:59" (1/1) ... [2022-11-18 18:28:59,250 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:28:59" (1/1) ... [2022-11-18 18:28:59,251 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:28:59" (1/1) ... [2022-11-18 18:28:59,266 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:28:59" (1/1) ... [2022-11-18 18:28:59,268 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:28:59" (1/1) ... [2022-11-18 18:28:59,273 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:28:59" (1/1) ... [2022-11-18 18:28:59,276 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:28:59" (1/1) ... [2022-11-18 18:28:59,282 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 18:28:59,283 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 18:28:59,284 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 18:28:59,284 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 18:28:59,285 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:28:59" (1/1) ... [2022-11-18 18:28:59,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:28:59,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2b3d15-5b46-4d9a-9177-e099a664090f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:28:59,332 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2b3d15-5b46-4d9a-9177-e099a664090f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 18:28:59,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2b3d15-5b46-4d9a-9177-e099a664090f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 18:28:59,390 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-18 18:28:59,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 18:28:59,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-18 18:28:59,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-18 18:28:59,391 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-18 18:28:59,391 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 18:28:59,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-18 18:28:59,392 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 18:28:59,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 18:28:59,392 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-18 18:28:59,392 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2022-11-18 18:28:59,393 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2022-11-18 18:28:59,393 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 18:28:59,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-18 18:28:59,395 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 18:28:59,807 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 18:28:59,808 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 18:29:00,399 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 18:29:00,421 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 18:29:00,421 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 18:29:00,424 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:29:00 BoogieIcfgContainer [2022-11-18 18:29:00,424 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 18:29:00,426 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 18:29:00,427 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 18:29:00,430 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 18:29:00,430 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 06:28:57" (1/3) ... [2022-11-18 18:29:00,431 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8cef548 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:29:00, skipping insertion in model container [2022-11-18 18:29:00,431 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:28:59" (2/3) ... [2022-11-18 18:29:00,432 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8cef548 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:29:00, skipping insertion in model container [2022-11-18 18:29:00,432 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:29:00" (3/3) ... [2022-11-18 18:29:00,433 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_2-container_of.i [2022-11-18 18:29:00,453 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 18:29:00,453 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 39 error locations. [2022-11-18 18:29:00,454 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 18:29:00,596 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-18 18:29:00,651 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-18 18:29:00,673 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 205 places, 205 transitions, 426 flow [2022-11-18 18:29:00,677 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 205 places, 205 transitions, 426 flow [2022-11-18 18:29:00,679 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 205 places, 205 transitions, 426 flow [2022-11-18 18:29:00,829 INFO L130 PetriNetUnfolder]: 8/262 cut-off events. [2022-11-18 18:29:00,829 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-18 18:29:00,836 INFO L83 FinitePrefix]: Finished finitePrefix Result has 271 conditions, 262 events. 8/262 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 643 event pairs, 0 based on Foata normal form. 0/194 useless extension candidates. Maximal degree in co-relation 139. Up to 4 conditions per place. [2022-11-18 18:29:00,842 INFO L119 LiptonReduction]: Number of co-enabled transitions 5024 [2022-11-18 18:30:35,496 WARN L233 SmtUtils]: Spent 5.07s on a formula simplification. DAG size of input: 112 DAG size of output: 111 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-18 18:30:42,880 WARN L233 SmtUtils]: Spent 5.33s on a formula simplification. DAG size of input: 112 DAG size of output: 111 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-18 18:31:56,432 WARN L233 SmtUtils]: Spent 5.61s on a formula simplification. DAG size of input: 132 DAG size of output: 124 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-18 18:32:05,332 WARN L233 SmtUtils]: Spent 5.79s on a formula simplification. DAG size of input: 132 DAG size of output: 124 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-18 18:32:22,114 WARN L233 SmtUtils]: Spent 14.05s on a formula simplification that was a NOOP. DAG size: 202 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-18 18:32:35,226 WARN L233 SmtUtils]: Spent 13.11s on a formula simplification that was a NOOP. DAG size: 202 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-18 18:32:41,605 WARN L233 SmtUtils]: Spent 6.38s on a formula simplification that was a NOOP. DAG size: 202 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-18 18:32:47,909 WARN L233 SmtUtils]: Spent 6.30s on a formula simplification that was a NOOP. DAG size: 202 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-18 18:35:39,907 WARN L233 SmtUtils]: Spent 2.87m on a formula simplification. DAG size of input: 255 DAG size of output: 251 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-18 18:37:18,411 WARN L233 SmtUtils]: Spent 1.64m on a formula simplification that was a NOOP. DAG size: 245 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-18 18:40:42,565 WARN L233 SmtUtils]: Spent 3.40m on a formula simplification. DAG size of input: 255 DAG size of output: 251 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-18 18:42:24,357 WARN L233 SmtUtils]: Spent 1.70m on a formula simplification that was a NOOP. DAG size: 245 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-18 18:42:46,791 WARN L233 SmtUtils]: Spent 21.99s on a formula simplification that was a NOOP. DAG size: 212 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-18 18:43:09,761 WARN L233 SmtUtils]: Spent 22.97s on a formula simplification that was a NOOP. DAG size: 212 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-18 18:43:30,691 WARN L233 SmtUtils]: Spent 20.93s on a formula simplification that was a NOOP. DAG size: 212 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-18 18:43:51,420 WARN L233 SmtUtils]: Spent 20.73s on a formula simplification that was a NOOP. DAG size: 212 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-18 18:43:51,426 INFO L134 LiptonReduction]: Checked pairs total: 18715 [2022-11-18 18:43:51,427 INFO L136 LiptonReduction]: Total number of compositions: 238 [2022-11-18 18:43:51,437 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 78 places, 75 transitions, 166 flow [2022-11-18 18:43:51,577 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 2549 states, 1745 states have (on average 3.9948424068767907) internal successors, (6971), 2548 states have internal predecessors, (6971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:43:51,600 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 18:43:51,606 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@43c66eeb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 18:43:51,606 INFO L358 AbstractCegarLoop]: Starting to check reachability of 53 error locations. [2022-11-18 18:43:51,615 INFO L276 IsEmpty]: Start isEmpty. Operand has 2549 states, 1745 states have (on average 3.9948424068767907) internal successors, (6971), 2548 states have internal predecessors, (6971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:43:51,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-18 18:43:51,622 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:43:51,622 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-18 18:43:51,623 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 50 more)] === [2022-11-18 18:43:51,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:43:51,629 INFO L85 PathProgramCache]: Analyzing trace with hash 724, now seen corresponding path program 1 times [2022-11-18 18:43:51,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:43:51,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [252917782] [2022-11-18 18:43:51,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:43:51,647 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:43:51,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2b3d15-5b46-4d9a-9177-e099a664090f/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:43:51,655 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2b3d15-5b46-4d9a-9177-e099a664090f/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 18:43:51,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2b3d15-5b46-4d9a-9177-e099a664090f/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-18 18:43:51,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:51,843 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-18 18:43:51,847 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:43:51,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:43:51,853 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:43:51,855 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:43:51,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [252917782] [2022-11-18 18:43:51,858 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [252917782] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:43:51,858 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:43:51,858 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-18 18:43:51,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373956769] [2022-11-18 18:43:51,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:43:51,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 18:43:51,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:43:51,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 18:43:51,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 18:43:51,919 INFO L87 Difference]: Start difference. First operand has 2549 states, 1745 states have (on average 3.9948424068767907) internal successors, (6971), 2548 states have internal predecessors, (6971), 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) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:43:53,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:43:53,588 INFO L93 Difference]: Finished difference Result 2239 states and 6019 transitions. [2022-11-18 18:43:53,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 18:43:53,593 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) Word has length 1 [2022-11-18 18:43:53,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:43:53,631 INFO L225 Difference]: With dead ends: 2239 [2022-11-18 18:43:53,631 INFO L226 Difference]: Without dead ends: 2236 [2022-11-18 18:43:53,632 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 18:43:53,636 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-18 18:43:53,637 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 15 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-18 18:43:53,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2236 states. [2022-11-18 18:43:53,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2236 to 2236. [2022-11-18 18:43:53,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2236 states, 1591 states have (on average 3.780012570710245) internal successors, (6014), 2235 states have internal predecessors, (6014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:43:53,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2236 states to 2236 states and 6014 transitions. [2022-11-18 18:43:53,810 INFO L78 Accepts]: Start accepts. Automaton has 2236 states and 6014 transitions. Word has length 1 [2022-11-18 18:43:53,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:43:53,811 INFO L495 AbstractCegarLoop]: Abstraction has 2236 states and 6014 transitions. [2022-11-18 18:43:53,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:43:53,812 INFO L276 IsEmpty]: Start isEmpty. Operand 2236 states and 6014 transitions. [2022-11-18 18:43:53,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-11-18 18:43:53,813 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:43:53,813 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-11-18 18:43:53,835 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2b3d15-5b46-4d9a-9177-e099a664090f/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-18 18:43:54,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2b3d15-5b46-4d9a-9177-e099a664090f/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:43:54,028 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 50 more)] === [2022-11-18 18:43:54,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:43:54,029 INFO L85 PathProgramCache]: Analyzing trace with hash 23165, now seen corresponding path program 1 times [2022-11-18 18:43:54,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:43:54,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [137338194] [2022-11-18 18:43:54,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:43:54,031 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:43:54,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2b3d15-5b46-4d9a-9177-e099a664090f/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:43:54,034 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2b3d15-5b46-4d9a-9177-e099a664090f/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 18:43:54,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2b3d15-5b46-4d9a-9177-e099a664090f/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-18 18:43:54,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:54,303 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 18:43:54,304 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:43:54,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:43:54,379 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:43:54,379 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:43:54,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [137338194] [2022-11-18 18:43:54,382 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [137338194] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:43:54,383 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:43:54,383 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-18 18:43:54,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761464724] [2022-11-18 18:43:54,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:43:54,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:43:54,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:43:54,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:43:54,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:43:54,395 INFO L87 Difference]: Start difference. First operand 2236 states and 6014 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:43:56,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:43:56,556 INFO L93 Difference]: Finished difference Result 2248 states and 6025 transitions. [2022-11-18 18:43:56,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:43:56,560 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) Word has length 2 [2022-11-18 18:43:56,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:43:56,576 INFO L225 Difference]: With dead ends: 2248 [2022-11-18 18:43:56,577 INFO L226 Difference]: Without dead ends: 2248 [2022-11-18 18:43:56,577 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:43:56,578 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 14 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-18 18:43:56,579 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 30 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-18 18:43:56,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2248 states. [2022-11-18 18:43:56,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2248 to 2234. [2022-11-18 18:43:56,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2234 states, 1591 states have (on average 3.778755499685732) internal successors, (6012), 2233 states have internal predecessors, (6012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:43:56,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2234 states to 2234 states and 6012 transitions. [2022-11-18 18:43:56,706 INFO L78 Accepts]: Start accepts. Automaton has 2234 states and 6012 transitions. Word has length 2 [2022-11-18 18:43:56,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:43:56,707 INFO L495 AbstractCegarLoop]: Abstraction has 2234 states and 6012 transitions. [2022-11-18 18:43:56,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:43:56,707 INFO L276 IsEmpty]: Start isEmpty. Operand 2234 states and 6012 transitions. [2022-11-18 18:43:56,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-18 18:43:56,708 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:43:56,709 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-18 18:43:56,730 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2b3d15-5b46-4d9a-9177-e099a664090f/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-18 18:43:56,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2b3d15-5b46-4d9a-9177-e099a664090f/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:43:56,925 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting my_callbackErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 50 more)] === [2022-11-18 18:43:56,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:43:56,926 INFO L85 PathProgramCache]: Analyzing trace with hash 709535, now seen corresponding path program 1 times [2022-11-18 18:43:56,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:43:56,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1517340879] [2022-11-18 18:43:56,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:43:56,930 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:43:56,930 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2b3d15-5b46-4d9a-9177-e099a664090f/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:43:56,932 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2b3d15-5b46-4d9a-9177-e099a664090f/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 18:43:56,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2b3d15-5b46-4d9a-9177-e099a664090f/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-18 18:43:57,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:57,175 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-18 18:43:57,177 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:43:57,233 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2022-11-18 18:43:57,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:43:57,295 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:43:57,295 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:43:57,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1517340879] [2022-11-18 18:43:57,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1517340879] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:43:57,296 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:43:57,296 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:43:57,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483264290] [2022-11-18 18:43:57,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:43:57,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 18:43:57,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:43:57,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 18:43:57,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 18:43:57,298 INFO L87 Difference]: Start difference. First operand 2234 states and 6012 transitions. Second operand has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:44:00,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:44:00,975 INFO L93 Difference]: Finished difference Result 2271 states and 6000 transitions. [2022-11-18 18:44:00,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 18:44:00,976 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 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) Word has length 3 [2022-11-18 18:44:00,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:44:00,991 INFO L225 Difference]: With dead ends: 2271 [2022-11-18 18:44:00,991 INFO L226 Difference]: Without dead ends: 2271 [2022-11-18 18:44:00,992 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 18:44:00,993 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 108 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-11-18 18:44:00,993 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 19 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-11-18 18:44:01,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2271 states. [2022-11-18 18:44:01,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2271 to 2050. [2022-11-18 18:44:01,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2050 states, 1479 states have (on average 3.706558485463151) internal successors, (5482), 2049 states have internal predecessors, (5482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:44:01,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2050 states to 2050 states and 5482 transitions. [2022-11-18 18:44:01,078 INFO L78 Accepts]: Start accepts. Automaton has 2050 states and 5482 transitions. Word has length 3 [2022-11-18 18:44:01,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:44:01,079 INFO L495 AbstractCegarLoop]: Abstraction has 2050 states and 5482 transitions. [2022-11-18 18:44:01,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:44:01,079 INFO L276 IsEmpty]: Start isEmpty. Operand 2050 states and 5482 transitions. [2022-11-18 18:44:01,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-18 18:44:01,080 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:44:01,080 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-18 18:44:01,096 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2b3d15-5b46-4d9a-9177-e099a664090f/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-18 18:44:01,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2b3d15-5b46-4d9a-9177-e099a664090f/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:44:01,296 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 50 more)] === [2022-11-18 18:44:01,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:44:01,297 INFO L85 PathProgramCache]: Analyzing trace with hash 709536, now seen corresponding path program 1 times [2022-11-18 18:44:01,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:44:01,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1974241343] [2022-11-18 18:44:01,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:44:01,298 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:44:01,298 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2b3d15-5b46-4d9a-9177-e099a664090f/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:44:01,299 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2b3d15-5b46-4d9a-9177-e099a664090f/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 18:44:01,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2b3d15-5b46-4d9a-9177-e099a664090f/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-18 18:44:01,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:01,528 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-18 18:44:01,531 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:44:01,564 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-18 18:44:01,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:44:01,693 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:44:01,693 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:44:01,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1974241343] [2022-11-18 18:44:01,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1974241343] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:44:01,694 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:44:01,694 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:44:01,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54933270] [2022-11-18 18:44:01,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:44:01,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 18:44:01,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:44:01,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 18:44:01,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 18:44:01,695 INFO L87 Difference]: Start difference. First operand 2050 states and 5482 transitions. Second operand has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:44:02,912 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec, FloatRoundingMode], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:44:04,369 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec, FloatRoundingMode], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:44:06,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:44:06,390 INFO L93 Difference]: Finished difference Result 1890 states and 4974 transitions. [2022-11-18 18:44:06,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 18:44:06,390 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 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) Word has length 3 [2022-11-18 18:44:06,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:44:06,400 INFO L225 Difference]: With dead ends: 1890 [2022-11-18 18:44:06,400 INFO L226 Difference]: Without dead ends: 1890 [2022-11-18 18:44:06,400 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 18:44:06,401 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 75 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-11-18 18:44:06,402 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 25 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-11-18 18:44:06,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1890 states. [2022-11-18 18:44:06,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1890 to 1876. [2022-11-18 18:44:06,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1876 states, 1370 states have (on average 3.6211678832116787) internal successors, (4961), 1875 states have internal predecessors, (4961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:44:06,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1876 states to 1876 states and 4961 transitions. [2022-11-18 18:44:06,526 INFO L78 Accepts]: Start accepts. Automaton has 1876 states and 4961 transitions. Word has length 3 [2022-11-18 18:44:06,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:44:06,526 INFO L495 AbstractCegarLoop]: Abstraction has 1876 states and 4961 transitions. [2022-11-18 18:44:06,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:44:06,526 INFO L276 IsEmpty]: Start isEmpty. Operand 1876 states and 4961 transitions. [2022-11-18 18:44:06,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-18 18:44:06,527 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:44:06,527 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-18 18:44:06,552 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2b3d15-5b46-4d9a-9177-e099a664090f/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-18 18:44:06,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2b3d15-5b46-4d9a-9177-e099a664090f/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:44:06,744 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 50 more)] === [2022-11-18 18:44:06,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:44:06,747 INFO L85 PathProgramCache]: Analyzing trace with hash 709524, now seen corresponding path program 1 times [2022-11-18 18:44:06,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:44:06,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2051823763] [2022-11-18 18:44:06,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:44:06,749 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:44:06,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2b3d15-5b46-4d9a-9177-e099a664090f/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:44:06,750 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2b3d15-5b46-4d9a-9177-e099a664090f/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 18:44:06,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2b3d15-5b46-4d9a-9177-e099a664090f/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-18 18:44:06,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:06,984 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 18:44:06,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:44:07,110 INFO L321 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2022-11-18 18:44:07,111 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2022-11-18 18:44:07,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:44:07,188 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:44:07,188 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:44:07,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2051823763] [2022-11-18 18:44:07,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2051823763] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:44:07,189 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:44:07,189 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-18 18:44:07,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538768594] [2022-11-18 18:44:07,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:44:07,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:44:07,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:44:07,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:44:07,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:44:07,190 INFO L87 Difference]: Start difference. First operand 1876 states and 4961 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:44:08,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:44:08,717 INFO L93 Difference]: Finished difference Result 1870 states and 4939 transitions. [2022-11-18 18:44:08,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:44:08,719 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) Word has length 3 [2022-11-18 18:44:08,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:44:08,726 INFO L225 Difference]: With dead ends: 1870 [2022-11-18 18:44:08,726 INFO L226 Difference]: Without dead ends: 1870 [2022-11-18 18:44:08,727 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:44:08,728 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 43 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-18 18:44:08,728 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 11 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-18 18:44:08,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1870 states. [2022-11-18 18:44:08,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1870 to 1858. [2022-11-18 18:44:08,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1858 states, 1364 states have (on average 3.6121700879765397) internal successors, (4927), 1857 states have internal predecessors, (4927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:44:08,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1858 states to 1858 states and 4927 transitions. [2022-11-18 18:44:08,787 INFO L78 Accepts]: Start accepts. Automaton has 1858 states and 4927 transitions. Word has length 3 [2022-11-18 18:44:08,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:44:08,788 INFO L495 AbstractCegarLoop]: Abstraction has 1858 states and 4927 transitions. [2022-11-18 18:44:08,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:44:08,788 INFO L276 IsEmpty]: Start isEmpty. Operand 1858 states and 4927 transitions. [2022-11-18 18:44:08,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-18 18:44:08,789 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:44:08,789 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-18 18:44:08,811 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2b3d15-5b46-4d9a-9177-e099a664090f/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-18 18:44:09,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2b3d15-5b46-4d9a-9177-e099a664090f/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:44:09,007 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 50 more)] === [2022-11-18 18:44:09,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:44:09,008 INFO L85 PathProgramCache]: Analyzing trace with hash 709526, now seen corresponding path program 1 times [2022-11-18 18:44:09,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:44:09,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1814098892] [2022-11-18 18:44:09,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:44:09,009 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:44:09,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2b3d15-5b46-4d9a-9177-e099a664090f/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:44:09,010 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2b3d15-5b46-4d9a-9177-e099a664090f/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 18:44:09,013 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2b3d15-5b46-4d9a-9177-e099a664090f/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-18 18:44:09,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:09,321 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-18 18:44:09,322 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:44:09,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 18:44:09,378 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-11-18 18:44:09,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:44:09,467 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:44:09,467 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:44:09,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1814098892] [2022-11-18 18:44:09,468 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1814098892] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:44:09,468 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:44:09,468 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-18 18:44:09,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393743535] [2022-11-18 18:44:09,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:44:09,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:44:09,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:44:09,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:44:09,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:44:09,469 INFO L87 Difference]: Start difference. First operand 1858 states and 4927 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:44:10,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:44:10,855 INFO L93 Difference]: Finished difference Result 1840 states and 4893 transitions. [2022-11-18 18:44:10,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:44:10,858 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) Word has length 3 [2022-11-18 18:44:10,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:44:10,869 INFO L225 Difference]: With dead ends: 1840 [2022-11-18 18:44:10,869 INFO L226 Difference]: Without dead ends: 1840 [2022-11-18 18:44:10,870 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:44:10,871 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 51 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-18 18:44:10,871 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 7 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-18 18:44:10,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1840 states. [2022-11-18 18:44:10,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1840 to 1840. [2022-11-18 18:44:10,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1840 states, 1358 states have (on average 3.6030927835051547) internal successors, (4893), 1839 states have internal predecessors, (4893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:44:10,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1840 states to 1840 states and 4893 transitions. [2022-11-18 18:44:10,940 INFO L78 Accepts]: Start accepts. Automaton has 1840 states and 4893 transitions. Word has length 3 [2022-11-18 18:44:10,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:44:10,941 INFO L495 AbstractCegarLoop]: Abstraction has 1840 states and 4893 transitions. [2022-11-18 18:44:10,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:44:10,942 INFO L276 IsEmpty]: Start isEmpty. Operand 1840 states and 4893 transitions. [2022-11-18 18:44:10,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-18 18:44:10,943 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:44:10,943 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-18 18:44:10,967 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2b3d15-5b46-4d9a-9177-e099a664090f/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-18 18:44:11,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2b3d15-5b46-4d9a-9177-e099a664090f/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:44:11,160 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr22REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 50 more)] === [2022-11-18 18:44:11,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:44:11,160 INFO L85 PathProgramCache]: Analyzing trace with hash 716011, now seen corresponding path program 1 times [2022-11-18 18:44:11,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:44:11,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2052390537] [2022-11-18 18:44:11,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:44:11,161 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:44:11,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2b3d15-5b46-4d9a-9177-e099a664090f/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:44:11,162 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2b3d15-5b46-4d9a-9177-e099a664090f/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 18:44:11,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2b3d15-5b46-4d9a-9177-e099a664090f/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-18 18:44:11,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:11,359 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 18:44:11,359 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:44:11,380 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2022-11-18 18:44:11,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:44:11,408 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:44:11,408 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:44:11,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2052390537] [2022-11-18 18:44:11,408 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2052390537] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:44:11,408 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:44:11,408 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-18 18:44:11,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400511665] [2022-11-18 18:44:11,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:44:11,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:44:11,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:44:11,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:44:11,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:44:11,410 INFO L87 Difference]: Start difference. First operand 1840 states and 4893 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:44:12,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:44:12,967 INFO L93 Difference]: Finished difference Result 1759 states and 4670 transitions. [2022-11-18 18:44:12,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:44:12,969 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) Word has length 3 [2022-11-18 18:44:12,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:44:12,980 INFO L225 Difference]: With dead ends: 1759 [2022-11-18 18:44:12,981 INFO L226 Difference]: Without dead ends: 1759 [2022-11-18 18:44:12,981 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:44:12,982 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 40 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-18 18:44:12,982 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 11 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-18 18:44:12,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1759 states. [2022-11-18 18:44:13,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1759 to 1759. [2022-11-18 18:44:13,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1759 states, 1313 states have (on average 3.5567402894135567) internal successors, (4670), 1758 states have internal predecessors, (4670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:44:13,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1759 states to 1759 states and 4670 transitions. [2022-11-18 18:44:13,050 INFO L78 Accepts]: Start accepts. Automaton has 1759 states and 4670 transitions. Word has length 3 [2022-11-18 18:44:13,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:44:13,050 INFO L495 AbstractCegarLoop]: Abstraction has 1759 states and 4670 transitions. [2022-11-18 18:44:13,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:44:13,051 INFO L276 IsEmpty]: Start isEmpty. Operand 1759 states and 4670 transitions. [2022-11-18 18:44:13,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-18 18:44:13,051 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:44:13,051 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-18 18:44:13,077 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2b3d15-5b46-4d9a-9177-e099a664090f/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-18 18:44:13,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2b3d15-5b46-4d9a-9177-e099a664090f/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:44:13,278 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr23REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 50 more)] === [2022-11-18 18:44:13,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:44:13,279 INFO L85 PathProgramCache]: Analyzing trace with hash 716012, now seen corresponding path program 1 times [2022-11-18 18:44:13,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:44:13,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1611036306] [2022-11-18 18:44:13,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:44:13,280 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:44:13,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2b3d15-5b46-4d9a-9177-e099a664090f/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:44:13,281 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2b3d15-5b46-4d9a-9177-e099a664090f/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 18:44:13,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2b3d15-5b46-4d9a-9177-e099a664090f/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-18 18:44:13,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:13,434 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 18:44:13,435 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:44:13,456 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-18 18:44:13,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:44:13,519 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:44:13,519 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:44:13,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1611036306] [2022-11-18 18:44:13,520 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1611036306] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:44:13,520 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:44:13,520 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-18 18:44:13,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707351719] [2022-11-18 18:44:13,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:44:13,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:44:13,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:44:13,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:44:13,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:44:13,521 INFO L87 Difference]: Start difference. First operand 1759 states and 4670 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:44:15,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:44:15,592 INFO L93 Difference]: Finished difference Result 1446 states and 3789 transitions. [2022-11-18 18:44:15,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:44:15,593 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) Word has length 3 [2022-11-18 18:44:15,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:44:15,601 INFO L225 Difference]: With dead ends: 1446 [2022-11-18 18:44:15,601 INFO L226 Difference]: Without dead ends: 1446 [2022-11-18 18:44:15,601 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:44:15,602 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 26 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-18 18:44:15,603 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 17 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-18 18:44:15,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1446 states. [2022-11-18 18:44:15,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1446 to 1442. [2022-11-18 18:44:15,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1442 states, 1136 states have (on average 3.3327464788732395) internal successors, (3786), 1441 states have internal predecessors, (3786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:44:15,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1442 states to 1442 states and 3786 transitions. [2022-11-18 18:44:15,646 INFO L78 Accepts]: Start accepts. Automaton has 1442 states and 3786 transitions. Word has length 3 [2022-11-18 18:44:15,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:44:15,647 INFO L495 AbstractCegarLoop]: Abstraction has 1442 states and 3786 transitions. [2022-11-18 18:44:15,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:44:15,647 INFO L276 IsEmpty]: Start isEmpty. Operand 1442 states and 3786 transitions. [2022-11-18 18:44:15,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-18 18:44:15,647 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:44:15,648 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-18 18:44:15,663 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2b3d15-5b46-4d9a-9177-e099a664090f/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2022-11-18 18:44:15,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2b3d15-5b46-4d9a-9177-e099a664090f/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:44:15,863 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting my_callbackErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 50 more)] === [2022-11-18 18:44:15,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:44:15,864 INFO L85 PathProgramCache]: Analyzing trace with hash 21995998, now seen corresponding path program 1 times [2022-11-18 18:44:15,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:44:15,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1749573074] [2022-11-18 18:44:15,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:44:15,865 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:44:15,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2b3d15-5b46-4d9a-9177-e099a664090f/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:44:15,866 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2b3d15-5b46-4d9a-9177-e099a664090f/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 18:44:15,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2b3d15-5b46-4d9a-9177-e099a664090f/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-18 18:44:16,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:16,178 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 18:44:16,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:44:16,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:44:16,207 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:44:16,207 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:44:16,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1749573074] [2022-11-18 18:44:16,207 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1749573074] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:44:16,207 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:44:16,207 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:44:16,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889463195] [2022-11-18 18:44:16,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:44:16,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:44:16,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:44:16,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:44:16,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:44:16,209 INFO L87 Difference]: Start difference. First operand 1442 states and 3786 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:44:17,456 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec, FloatRoundingMode], hasArrays=true, hasNonlinArith=false, quantifiers []