./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety/20020406-1.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_77fc67df-1619-486f-827c-1db2d83bddf6/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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_77fc67df-1619-486f-827c-1db2d83bddf6/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/bin/uautomizer-TMbwUNV5ro/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/20020406-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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_77fc67df-1619-486f-827c-1db2d83bddf6/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 1ecdf6fdf9ec72145fabb79894bcc278b3e5646bc4893dbabc4bb180fa53c5ae --- 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 20:49:53,624 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:49:53,626 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:49:53,672 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:49:53,673 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:49:53,677 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:49:53,678 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:49:53,682 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:49:53,686 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:49:53,688 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:49:53,690 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:49:53,693 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:49:53,694 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:49:53,704 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:49:53,706 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:49:53,707 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:49:53,709 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:49:53,711 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:49:53,713 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:49:53,719 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:49:53,721 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:49:53,722 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:49:53,725 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:49:53,726 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:49:53,737 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:49:53,737 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:49:53,738 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:49:53,739 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:49:53,740 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:49:53,741 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:49:53,742 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:49:53,743 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:49:53,745 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:49:53,747 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:49:53,749 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:49:53,749 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:49:53,750 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:49:53,750 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:49:53,750 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:49:53,751 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:49:53,752 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:49:53,753 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/bin/uautomizer-TMbwUNV5ro/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-11-18 20:49:53,794 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:49:53,794 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:49:53,795 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:49:53,796 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:49:53,797 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:49:53,797 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:49:53,798 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:49:53,798 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:49:53,799 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:49:53,799 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:49:53,800 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:49:53,800 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:49:53,801 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:49:53,801 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:49:53,801 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:49:53,801 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-18 20:49:53,802 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-18 20:49:53,802 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-18 20:49:53,802 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:49:53,803 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-18 20:49:53,803 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:49:53,803 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:49:53,803 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:49:53,804 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:49:53,804 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:49:53,804 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:49:53,805 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:49:53,805 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:49:53,805 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:49:53,805 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:49:53,806 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_77fc67df-1619-486f-827c-1db2d83bddf6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ecdf6fdf9ec72145fabb79894bcc278b3e5646bc4893dbabc4bb180fa53c5ae [2022-11-18 20:49:54,185 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:49:54,228 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:49:54,231 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:49:54,232 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:49:54,233 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:49:54,235 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/memsafety/20020406-1.i [2022-11-18 20:49:54,321 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/bin/uautomizer-TMbwUNV5ro/data/61061ca02/c91562829c6d44a892a52ecb4c8c715b/FLAG1e409c4b1 [2022-11-18 20:49:54,907 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:49:54,908 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/sv-benchmarks/c/memsafety/20020406-1.i [2022-11-18 20:49:54,929 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/bin/uautomizer-TMbwUNV5ro/data/61061ca02/c91562829c6d44a892a52ecb4c8c715b/FLAG1e409c4b1 [2022-11-18 20:49:55,161 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/bin/uautomizer-TMbwUNV5ro/data/61061ca02/c91562829c6d44a892a52ecb4c8c715b [2022-11-18 20:49:55,164 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:49:55,165 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:49:55,170 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:49:55,171 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:49:55,175 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:49:55,176 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:49:55" (1/1) ... [2022-11-18 20:49:55,177 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c2f7658 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:49:55, skipping insertion in model container [2022-11-18 20:49:55,178 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:49:55" (1/1) ... [2022-11-18 20:49:55,186 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:49:55,260 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:49:55,939 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:49:55,955 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 20:49:55,956 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@e133ec4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:49:55, skipping insertion in model container [2022-11-18 20:49:55,957 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:49:55,958 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2022-11-18 20:49:55,962 INFO L158 Benchmark]: Toolchain (without parser) took 793.72ms. Allocated memory is still 132.1MB. Free memory was 90.9MB in the beginning and 102.5MB in the end (delta: -11.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-18 20:49:55,963 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 132.1MB. Free memory is still 109.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:49:55,965 INFO L158 Benchmark]: CACSL2BoogieTranslator took 788.41ms. Allocated memory is still 132.1MB. Free memory was 90.7MB in the beginning and 102.5MB in the end (delta: -11.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-18 20:49:55,967 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 132.1MB. Free memory is still 109.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 788.41ms. Allocated memory is still 132.1MB. Free memory was 90.7MB in the beginning and 102.5MB in the end (delta: -11.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 897]: 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_77fc67df-1619-486f-827c-1db2d83bddf6/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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_77fc67df-1619-486f-827c-1db2d83bddf6/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/bin/uautomizer-TMbwUNV5ro/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/20020406-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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_77fc67df-1619-486f-827c-1db2d83bddf6/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 1ecdf6fdf9ec72145fabb79894bcc278b3e5646bc4893dbabc4bb180fa53c5ae --- 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 20:49:58,156 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:49:58,158 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:49:58,179 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:49:58,179 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:49:58,181 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:49:58,182 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:49:58,184 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:49:58,186 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:49:58,188 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:49:58,189 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:49:58,190 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:49:58,191 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:49:58,192 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:49:58,193 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:49:58,194 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:49:58,196 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:49:58,197 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:49:58,199 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:49:58,201 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:49:58,202 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:49:58,204 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:49:58,205 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:49:58,206 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:49:58,210 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:49:58,211 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:49:58,219 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:49:58,221 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:49:58,221 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:49:58,222 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:49:58,222 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:49:58,223 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:49:58,224 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:49:58,225 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:49:58,227 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:49:58,227 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:49:58,230 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:49:58,230 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:49:58,230 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:49:58,232 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:49:58,234 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:49:58,236 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/bin/uautomizer-TMbwUNV5ro/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2022-11-18 20:49:58,279 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:49:58,283 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:49:58,284 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:49:58,285 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:49:58,286 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:49:58,286 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:49:58,287 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:49:58,290 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:49:58,290 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:49:58,290 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:49:58,291 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:49:58,292 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:49:58,292 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:49:58,292 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:49:58,292 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:49:58,293 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-18 20:49:58,293 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-18 20:49:58,293 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-18 20:49:58,293 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:49:58,293 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-18 20:49:58,294 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-18 20:49:58,294 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-18 20:49:58,294 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:49:58,294 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:49:58,294 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:49:58,295 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:49:58,295 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:49:58,295 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:49:58,295 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:49:58,296 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:49:58,296 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-18 20:49:58,296 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-18 20:49:58,296 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-18 20:49:58,297 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_77fc67df-1619-486f-827c-1db2d83bddf6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ecdf6fdf9ec72145fabb79894bcc278b3e5646bc4893dbabc4bb180fa53c5ae [2022-11-18 20:49:58,713 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:49:58,736 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:49:58,739 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:49:58,740 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:49:58,741 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:49:58,743 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/memsafety/20020406-1.i [2022-11-18 20:49:58,816 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/bin/uautomizer-TMbwUNV5ro/data/0f1609be8/76b12207613c45fc90bd6a5544407d5c/FLAG3347007e8 [2022-11-18 20:49:59,429 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:49:59,429 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/sv-benchmarks/c/memsafety/20020406-1.i [2022-11-18 20:49:59,446 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/bin/uautomizer-TMbwUNV5ro/data/0f1609be8/76b12207613c45fc90bd6a5544407d5c/FLAG3347007e8 [2022-11-18 20:49:59,718 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/bin/uautomizer-TMbwUNV5ro/data/0f1609be8/76b12207613c45fc90bd6a5544407d5c [2022-11-18 20:49:59,721 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:49:59,723 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:49:59,724 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:49:59,725 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:49:59,737 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:49:59,738 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:49:59" (1/1) ... [2022-11-18 20:49:59,739 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43ab72be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:49:59, skipping insertion in model container [2022-11-18 20:49:59,740 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:49:59" (1/1) ... [2022-11-18 20:49:59,747 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:49:59,796 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:50:00,391 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:50:00,409 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-18 20:50:00,438 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:50:00,509 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:50:00,514 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:50:00,558 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:50:00,662 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:50:00,663 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:50:00 WrapperNode [2022-11-18 20:50:00,664 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:50:00,665 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:50:00,666 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:50:00,666 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:50:00,674 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:50:00" (1/1) ... [2022-11-18 20:50:00,713 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:50:00" (1/1) ... [2022-11-18 20:50:00,760 INFO L138 Inliner]: procedures = 286, calls = 76, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 65 [2022-11-18 20:50:00,761 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:50:00,762 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:50:00,763 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:50:00,763 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:50:00,773 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:50:00" (1/1) ... [2022-11-18 20:50:00,773 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:50:00" (1/1) ... [2022-11-18 20:50:00,794 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:50:00" (1/1) ... [2022-11-18 20:50:00,797 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:50:00" (1/1) ... [2022-11-18 20:50:00,809 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:50:00" (1/1) ... [2022-11-18 20:50:00,828 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:50:00" (1/1) ... [2022-11-18 20:50:00,834 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:50:00" (1/1) ... [2022-11-18 20:50:00,842 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:50:00" (1/1) ... [2022-11-18 20:50:00,846 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:50:00,847 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:50:00,847 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:50:00,848 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:50:00,848 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:50:00" (1/1) ... [2022-11-18 20:50:00,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:50:00,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:50:00,884 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:50:00,914 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:50:00,951 INFO L130 BoogieDeclarations]: Found specification of procedure DUPFFdeg [2022-11-18 20:50:00,951 INFO L138 BoogieDeclarations]: Found implementation of procedure DUPFFdeg [2022-11-18 20:50:00,952 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-18 20:50:00,952 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:50:00,952 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-18 20:50:00,952 INFO L130 BoogieDeclarations]: Found specification of procedure DUPFFnew [2022-11-18 20:50:00,953 INFO L138 BoogieDeclarations]: Found implementation of procedure DUPFFnew [2022-11-18 20:50:00,955 INFO L130 BoogieDeclarations]: Found specification of procedure DUPFFfree [2022-11-18 20:50:00,955 INFO L138 BoogieDeclarations]: Found implementation of procedure DUPFFfree [2022-11-18 20:50:00,956 INFO L130 BoogieDeclarations]: Found specification of procedure DUPFFshift_add [2022-11-18 20:50:00,956 INFO L138 BoogieDeclarations]: Found implementation of procedure DUPFFshift_add [2022-11-18 20:50:00,957 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:50:00,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-18 20:50:00,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-18 20:50:00,957 INFO L130 BoogieDeclarations]: Found specification of procedure FFmul [2022-11-18 20:50:00,957 INFO L138 BoogieDeclarations]: Found implementation of procedure FFmul [2022-11-18 20:50:00,958 INFO L130 BoogieDeclarations]: Found specification of procedure DUPFFexgcd [2022-11-18 20:50:00,958 INFO L138 BoogieDeclarations]: Found implementation of procedure DUPFFexgcd [2022-11-18 20:50:00,958 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 20:50:00,958 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:50:00,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-18 20:50:00,959 INFO L130 BoogieDeclarations]: Found specification of procedure DUPFFswap [2022-11-18 20:50:00,959 INFO L138 BoogieDeclarations]: Found implementation of procedure DUPFFswap [2022-11-18 20:50:00,959 INFO L130 BoogieDeclarations]: Found specification of procedure DUPFFcopy [2022-11-18 20:50:00,960 INFO L138 BoogieDeclarations]: Found implementation of procedure DUPFFcopy [2022-11-18 20:50:00,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:50:00,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:50:01,181 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:50:01,184 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:50:02,224 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:50:02,245 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:50:02,245 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-18 20:50:02,248 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:50:02 BoogieIcfgContainer [2022-11-18 20:50:02,249 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:50:02,253 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:50:02,254 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:50:02,257 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:50:02,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:49:59" (1/3) ... [2022-11-18 20:50:02,259 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@402523f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:50:02, skipping insertion in model container [2022-11-18 20:50:02,259 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:50:00" (2/3) ... [2022-11-18 20:50:02,260 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@402523f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:50:02, skipping insertion in model container [2022-11-18 20:50:02,260 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:50:02" (3/3) ... [2022-11-18 20:50:02,273 INFO L112 eAbstractionObserver]: Analyzing ICFG 20020406-1.i [2022-11-18 20:50:02,291 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:50:02,292 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 55 error locations. [2022-11-18 20:50:02,345 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:50:02,352 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;@5111852c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:50:02,353 INFO L358 AbstractCegarLoop]: Starting to check reachability of 55 error locations. [2022-11-18 20:50:02,358 INFO L276 IsEmpty]: Start isEmpty. Operand has 187 states, 90 states have (on average 1.7333333333333334) internal successors, (156), 146 states have internal predecessors, (156), 35 states have call successors, (35), 8 states have call predecessors, (35), 8 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2022-11-18 20:50:02,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-18 20:50:02,365 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:50:02,366 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-18 20:50:02,367 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting DUPFFnewErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [DUPFFnewErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 52 more)] === [2022-11-18 20:50:02,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:50:02,373 INFO L85 PathProgramCache]: Analyzing trace with hash 228226931, now seen corresponding path program 1 times [2022-11-18 20:50:02,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:50:02,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [233958045] [2022-11-18 20:50:02,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:50:02,388 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 20:50:02,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:50:02,395 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 20:50:02,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 20:50:02,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:50:02,550 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 20:50:02,556 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:50:02,635 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 20:50:02,649 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 20:50:02,649 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:50:02,650 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:50:02,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [233958045] [2022-11-18 20:50:02,651 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [233958045] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:50:02,651 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:50:02,651 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:50:02,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162202250] [2022-11-18 20:50:02,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:50:02,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:50:02,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:50:02,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:50:02,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:50:02,704 INFO L87 Difference]: Start difference. First operand has 187 states, 90 states have (on average 1.7333333333333334) internal successors, (156), 146 states have internal predecessors, (156), 35 states have call successors, (35), 8 states have call predecessors, (35), 8 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:03,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:50:03,140 INFO L93 Difference]: Finished difference Result 182 states and 218 transitions. [2022-11-18 20:50:03,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:50:03,144 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-18 20:50:03,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:50:03,153 INFO L225 Difference]: With dead ends: 182 [2022-11-18 20:50:03,153 INFO L226 Difference]: Without dead ends: 180 [2022-11-18 20:50:03,155 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 20:50:03,159 INFO L413 NwaCegarLoop]: 203 mSDtfsCounter, 22 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-18 20:50:03,160 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 344 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-18 20:50:03,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2022-11-18 20:50:03,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 180. [2022-11-18 20:50:03,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 87 states have (on average 1.6781609195402298) internal successors, (146), 139 states have internal predecessors, (146), 35 states have call successors, (35), 8 states have call predecessors, (35), 8 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2022-11-18 20:50:03,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 216 transitions. [2022-11-18 20:50:03,217 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 216 transitions. Word has length 5 [2022-11-18 20:50:03,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:50:03,218 INFO L495 AbstractCegarLoop]: Abstraction has 180 states and 216 transitions. [2022-11-18 20:50:03,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:03,218 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 216 transitions. [2022-11-18 20:50:03,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-18 20:50:03,219 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:50:03,219 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-18 20:50:03,235 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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)] Ended with exit code 0 [2022-11-18 20:50:03,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 20:50:03,432 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting DUPFFnewErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [DUPFFnewErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 52 more)] === [2022-11-18 20:50:03,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:50:03,433 INFO L85 PathProgramCache]: Analyzing trace with hash 228226932, now seen corresponding path program 1 times [2022-11-18 20:50:03,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:50:03,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [478881529] [2022-11-18 20:50:03,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:50:03,435 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 20:50:03,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:50:03,436 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 20:50:03,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 20:50:03,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:50:03,527 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 20:50:03,529 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:50:03,549 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 20:50:03,562 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 20:50:03,563 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:50:03,564 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:50:03,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [478881529] [2022-11-18 20:50:03,569 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [478881529] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:50:03,570 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:50:03,575 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:50:03,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268296744] [2022-11-18 20:50:03,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:50:03,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:50:03,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:50:03,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:50:03,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:50:03,578 INFO L87 Difference]: Start difference. First operand 180 states and 216 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:04,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:50:04,056 INFO L93 Difference]: Finished difference Result 184 states and 225 transitions. [2022-11-18 20:50:04,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:50:04,057 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-18 20:50:04,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:50:04,061 INFO L225 Difference]: With dead ends: 184 [2022-11-18 20:50:04,061 INFO L226 Difference]: Without dead ends: 184 [2022-11-18 20:50:04,061 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 20:50:04,063 INFO L413 NwaCegarLoop]: 210 mSDtfsCounter, 6 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-18 20:50:04,063 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 360 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-18 20:50:04,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2022-11-18 20:50:04,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 181. [2022-11-18 20:50:04,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 89 states have (on average 1.651685393258427) internal successors, (147), 140 states have internal predecessors, (147), 35 states have call successors, (35), 8 states have call predecessors, (35), 8 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2022-11-18 20:50:04,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 217 transitions. [2022-11-18 20:50:04,083 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 217 transitions. Word has length 5 [2022-11-18 20:50:04,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:50:04,084 INFO L495 AbstractCegarLoop]: Abstraction has 181 states and 217 transitions. [2022-11-18 20:50:04,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:04,084 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 217 transitions. [2022-11-18 20:50:04,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-18 20:50:04,085 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:50:04,085 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:50:04,106 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 20:50:04,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 20:50:04,297 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting DUPFFnewErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [DUPFFnewErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 52 more)] === [2022-11-18 20:50:04,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:50:04,298 INFO L85 PathProgramCache]: Analyzing trace with hash 282747829, now seen corresponding path program 1 times [2022-11-18 20:50:04,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:50:04,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [405125597] [2022-11-18 20:50:04,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:50:04,299 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 20:50:04,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:50:04,300 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 20:50:04,329 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 20:50:04,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:50:04,420 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 20:50:04,422 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:50:04,446 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 20:50:04,455 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 20:50:04,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:50:04,543 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 20:50:04,558 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-11-18 20:50:04,559 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2022-11-18 20:50:04,580 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 20:50:04,580 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:50:04,581 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:50:04,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [405125597] [2022-11-18 20:50:04,584 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [405125597] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:50:04,584 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:50:04,585 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:50:04,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578079151] [2022-11-18 20:50:04,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:50:04,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:50:04,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:50:04,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:50:04,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:50:04,589 INFO L87 Difference]: Start difference. First operand 181 states and 217 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:04,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:50:04,971 INFO L93 Difference]: Finished difference Result 177 states and 213 transitions. [2022-11-18 20:50:04,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:50:04,973 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-18 20:50:04,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:50:04,974 INFO L225 Difference]: With dead ends: 177 [2022-11-18 20:50:04,974 INFO L226 Difference]: Without dead ends: 177 [2022-11-18 20:50:04,975 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:50:04,975 INFO L413 NwaCegarLoop]: 200 mSDtfsCounter, 33 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-18 20:50:04,976 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 342 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-18 20:50:04,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2022-11-18 20:50:05,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 175. [2022-11-18 20:50:05,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 87 states have (on average 1.6206896551724137) internal successors, (141), 134 states have internal predecessors, (141), 35 states have call successors, (35), 8 states have call predecessors, (35), 8 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2022-11-18 20:50:05,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 211 transitions. [2022-11-18 20:50:05,006 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 211 transitions. Word has length 7 [2022-11-18 20:50:05,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:50:05,011 INFO L495 AbstractCegarLoop]: Abstraction has 175 states and 211 transitions. [2022-11-18 20:50:05,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:05,011 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 211 transitions. [2022-11-18 20:50:05,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-18 20:50:05,012 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:50:05,012 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:50:05,024 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 20:50:05,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 20:50:05,214 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting DUPFFnewErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE === [DUPFFnewErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 52 more)] === [2022-11-18 20:50:05,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:50:05,214 INFO L85 PathProgramCache]: Analyzing trace with hash -1865414411, now seen corresponding path program 1 times [2022-11-18 20:50:05,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:50:05,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1729751131] [2022-11-18 20:50:05,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:50:05,216 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 20:50:05,216 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:50:05,217 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 20:50:05,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 20:50:05,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:50:05,323 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 20:50:05,325 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:50:05,332 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 20:50:05,367 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-18 20:50:05,408 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2022-11-18 20:50:05,436 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 20:50:05,437 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:50:05,437 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:50:05,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1729751131] [2022-11-18 20:50:05,437 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1729751131] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:50:05,438 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:50:05,438 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:50:05,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526259197] [2022-11-18 20:50:05,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:50:05,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:50:05,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:50:05,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:50:05,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:50:05,447 INFO L87 Difference]: Start difference. First operand 175 states and 211 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:06,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:50:06,367 INFO L93 Difference]: Finished difference Result 186 states and 233 transitions. [2022-11-18 20:50:06,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-18 20:50:06,370 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-18 20:50:06,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:50:06,372 INFO L225 Difference]: With dead ends: 186 [2022-11-18 20:50:06,372 INFO L226 Difference]: Without dead ends: 186 [2022-11-18 20:50:06,373 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-11-18 20:50:06,374 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 35 mSDsluCounter, 602 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 811 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-18 20:50:06,374 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 811 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-18 20:50:06,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2022-11-18 20:50:06,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 174. [2022-11-18 20:50:06,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 87 states have (on average 1.6091954022988506) internal successors, (140), 133 states have internal predecessors, (140), 35 states have call successors, (35), 8 states have call predecessors, (35), 8 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2022-11-18 20:50:06,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 210 transitions. [2022-11-18 20:50:06,389 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 210 transitions. Word has length 11 [2022-11-18 20:50:06,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:50:06,407 INFO L495 AbstractCegarLoop]: Abstraction has 174 states and 210 transitions. [2022-11-18 20:50:06,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:06,407 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 210 transitions. [2022-11-18 20:50:06,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-18 20:50:06,408 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:50:06,408 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:50:06,423 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 20:50:06,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 20:50:06,620 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting DUPFFnewErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE === [DUPFFnewErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 52 more)] === [2022-11-18 20:50:06,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:50:06,621 INFO L85 PathProgramCache]: Analyzing trace with hash -1993271845, now seen corresponding path program 1 times [2022-11-18 20:50:06,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:50:06,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [940752402] [2022-11-18 20:50:06,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:50:06,622 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 20:50:06,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:50:06,624 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 20:50:06,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 20:50:06,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:50:06,736 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-18 20:50:06,739 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:50:06,764 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 10 treesize of output 9 [2022-11-18 20:50:06,807 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-18 20:50:06,821 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-18 20:50:06,891 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2022-11-18 20:50:06,902 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-11-18 20:50:06,976 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 20:50:06,976 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:50:06,977 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:50:06,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [940752402] [2022-11-18 20:50:06,977 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [940752402] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:50:06,977 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:50:06,977 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 20:50:06,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367280391] [2022-11-18 20:50:06,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:50:06,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 20:50:06,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:50:06,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 20:50:06,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:50:06,979 INFO L87 Difference]: Start difference. First operand 174 states and 210 transitions. Second operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:08,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:50:08,238 INFO L93 Difference]: Finished difference Result 197 states and 234 transitions. [2022-11-18 20:50:08,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-18 20:50:08,240 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-18 20:50:08,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:50:08,242 INFO L225 Difference]: With dead ends: 197 [2022-11-18 20:50:08,242 INFO L226 Difference]: Without dead ends: 197 [2022-11-18 20:50:08,242 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=85, Invalid=187, Unknown=0, NotChecked=0, Total=272 [2022-11-18 20:50:08,243 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 64 mSDsluCounter, 857 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 1053 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-18 20:50:08,244 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 1053 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-18 20:50:08,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2022-11-18 20:50:08,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 190. [2022-11-18 20:50:08,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 102 states have (on average 1.5294117647058822) internal successors, (156), 148 states have internal predecessors, (156), 35 states have call successors, (35), 9 states have call predecessors, (35), 9 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2022-11-18 20:50:08,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 226 transitions. [2022-11-18 20:50:08,255 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 226 transitions. Word has length 12 [2022-11-18 20:50:08,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:50:08,256 INFO L495 AbstractCegarLoop]: Abstraction has 190 states and 226 transitions. [2022-11-18 20:50:08,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:08,256 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 226 transitions. [2022-11-18 20:50:08,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-18 20:50:08,257 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:50:08,257 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:50:08,275 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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)] Ended with exit code 0 [2022-11-18 20:50:08,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 20:50:08,475 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [DUPFFnewErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 52 more)] === [2022-11-18 20:50:08,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:50:08,476 INFO L85 PathProgramCache]: Analyzing trace with hash 335042805, now seen corresponding path program 1 times [2022-11-18 20:50:08,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:50:08,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1344131033] [2022-11-18 20:50:08,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:50:08,477 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 20:50:08,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:50:08,478 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 20:50:08,483 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 20:50:08,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:50:08,640 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 20:50:08,642 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:50:08,764 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 20:50:08,764 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:50:08,764 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:50:08,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1344131033] [2022-11-18 20:50:08,764 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1344131033] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:50:08,765 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:50:08,765 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 20:50:08,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612619050] [2022-11-18 20:50:08,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:50:08,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:50:08,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:50:08,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:50:08,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:50:08,766 INFO L87 Difference]: Start difference. First operand 190 states and 226 transitions. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 20:50:09,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:50:09,036 INFO L93 Difference]: Finished difference Result 209 states and 253 transitions. [2022-11-18 20:50:09,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:50:09,037 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2022-11-18 20:50:09,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:50:09,039 INFO L225 Difference]: With dead ends: 209 [2022-11-18 20:50:09,039 INFO L226 Difference]: Without dead ends: 203 [2022-11-18 20:50:09,039 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-11-18 20:50:09,040 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 45 mSDsluCounter, 561 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 757 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 20:50:09,040 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 757 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 20:50:09,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2022-11-18 20:50:09,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 198. [2022-11-18 20:50:09,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 109 states have (on average 1.5045871559633028) internal successors, (164), 156 states have internal predecessors, (164), 35 states have call successors, (35), 9 states have call predecessors, (35), 10 states have return successors, (39), 35 states have call predecessors, (39), 35 states have call successors, (39) [2022-11-18 20:50:09,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 238 transitions. [2022-11-18 20:50:09,051 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 238 transitions. Word has length 21 [2022-11-18 20:50:09,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:50:09,052 INFO L495 AbstractCegarLoop]: Abstraction has 198 states and 238 transitions. [2022-11-18 20:50:09,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 20:50:09,052 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 238 transitions. [2022-11-18 20:50:09,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-18 20:50:09,053 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:50:09,053 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:50:09,070 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 20:50:09,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 20:50:09,266 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [DUPFFnewErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 52 more)] === [2022-11-18 20:50:09,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:50:09,266 INFO L85 PathProgramCache]: Analyzing trace with hash 370721495, now seen corresponding path program 1 times [2022-11-18 20:50:09,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:50:09,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1366885] [2022-11-18 20:50:09,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:50:09,267 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 20:50:09,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:50:09,268 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 20:50:09,269 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 20:50:09,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:50:09,428 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 20:50:09,430 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:50:09,588 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:50:09,588 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:50:09,897 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:50:09,898 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:50:09,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1366885] [2022-11-18 20:50:09,898 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1366885] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:50:09,898 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 20:50:09,898 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2022-11-18 20:50:09,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185889815] [2022-11-18 20:50:09,899 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 20:50:09,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 20:50:09,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:50:09,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 20:50:09,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2022-11-18 20:50:09,900 INFO L87 Difference]: Start difference. First operand 198 states and 238 transitions. Second operand has 12 states, 12 states have (on average 3.0) internal successors, (36), 12 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-18 20:50:10,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:50:10,806 INFO L93 Difference]: Finished difference Result 246 states and 304 transitions. [2022-11-18 20:50:10,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-18 20:50:10,808 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0) internal successors, (36), 12 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22 [2022-11-18 20:50:10,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:50:10,811 INFO L225 Difference]: With dead ends: 246 [2022-11-18 20:50:10,811 INFO L226 Difference]: Without dead ends: 234 [2022-11-18 20:50:10,811 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=177, Invalid=329, Unknown=0, NotChecked=0, Total=506 [2022-11-18 20:50:10,812 INFO L413 NwaCegarLoop]: 205 mSDtfsCounter, 167 mSDsluCounter, 1146 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 1351 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-18 20:50:10,813 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 1351 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-18 20:50:10,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2022-11-18 20:50:10,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 216. [2022-11-18 20:50:10,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 127 states have (on average 1.4960629921259843) internal successors, (190), 173 states have internal predecessors, (190), 35 states have call successors, (35), 10 states have call predecessors, (35), 10 states have return successors, (39), 35 states have call predecessors, (39), 35 states have call successors, (39) [2022-11-18 20:50:10,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 264 transitions. [2022-11-18 20:50:10,836 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 264 transitions. Word has length 22 [2022-11-18 20:50:10,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:50:10,836 INFO L495 AbstractCegarLoop]: Abstraction has 216 states and 264 transitions. [2022-11-18 20:50:10,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0) internal successors, (36), 12 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-18 20:50:10,837 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 264 transitions. [2022-11-18 20:50:10,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-18 20:50:10,838 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:50:10,838 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:50:10,872 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 20:50:11,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 20:50:11,051 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [DUPFFnewErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 52 more)] === [2022-11-18 20:50:11,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:50:11,052 INFO L85 PathProgramCache]: Analyzing trace with hash -843792011, now seen corresponding path program 2 times [2022-11-18 20:50:11,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:50:11,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [229223347] [2022-11-18 20:50:11,053 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 20:50:11,053 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 20:50:11,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:50:11,054 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 20:50:11,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 20:50:11,205 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-18 20:50:11,205 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:50:11,211 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 20:50:11,213 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:50:11,264 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-18 20:50:11,264 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:50:11,264 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:50:11,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [229223347] [2022-11-18 20:50:11,265 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [229223347] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:50:11,265 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:50:11,265 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:50:11,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967927775] [2022-11-18 20:50:11,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:50:11,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:50:11,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:50:11,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:50:11,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:50:11,267 INFO L87 Difference]: Start difference. First operand 216 states and 264 transitions. Second operand has 6 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 20:50:11,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:50:11,947 INFO L93 Difference]: Finished difference Result 214 states and 262 transitions. [2022-11-18 20:50:11,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:50:11,948 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2022-11-18 20:50:11,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:50:11,950 INFO L225 Difference]: With dead ends: 214 [2022-11-18 20:50:11,950 INFO L226 Difference]: Without dead ends: 214 [2022-11-18 20:50:11,951 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:50:11,951 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 22 mSDsluCounter, 564 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 756 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-18 20:50:11,952 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 756 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-18 20:50:11,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2022-11-18 20:50:11,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 214. [2022-11-18 20:50:11,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 127 states have (on average 1.4803149606299213) internal successors, (188), 171 states have internal predecessors, (188), 35 states have call successors, (35), 10 states have call predecessors, (35), 10 states have return successors, (39), 35 states have call predecessors, (39), 35 states have call successors, (39) [2022-11-18 20:50:11,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 262 transitions. [2022-11-18 20:50:11,962 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 262 transitions. Word has length 25 [2022-11-18 20:50:11,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:50:11,963 INFO L495 AbstractCegarLoop]: Abstraction has 214 states and 262 transitions. [2022-11-18 20:50:11,963 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 20:50:11,963 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 262 transitions. [2022-11-18 20:50:11,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-18 20:50:11,964 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:50:11,964 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:50:11,987 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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)] Forceful destruction successful, exit code 0 [2022-11-18 20:50:12,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 20:50:12,180 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [DUPFFnewErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 52 more)] === [2022-11-18 20:50:12,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:50:12,180 INFO L85 PathProgramCache]: Analyzing trace with hash -843792010, now seen corresponding path program 1 times [2022-11-18 20:50:12,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:50:12,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [472978668] [2022-11-18 20:50:12,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:50:12,181 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 20:50:12,181 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:50:12,182 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 20:50:12,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 20:50:12,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:50:12,359 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-18 20:50:12,361 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:50:12,642 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:50:12,642 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:50:13,270 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:50:13,270 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:50:13,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [472978668] [2022-11-18 20:50:13,270 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [472978668] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:50:13,271 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 20:50:13,271 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2022-11-18 20:50:13,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996050909] [2022-11-18 20:50:13,271 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 20:50:13,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-18 20:50:13,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:50:13,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-18 20:50:13,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2022-11-18 20:50:13,273 INFO L87 Difference]: Start difference. First operand 214 states and 262 transitions. Second operand has 18 states, 18 states have (on average 2.3333333333333335) internal successors, (42), 18 states have internal predecessors, (42), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-18 20:50:15,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:50:15,371 INFO L93 Difference]: Finished difference Result 285 states and 358 transitions. [2022-11-18 20:50:15,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 20:50:15,372 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.3333333333333335) internal successors, (42), 18 states have internal predecessors, (42), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 25 [2022-11-18 20:50:15,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:50:15,374 INFO L225 Difference]: With dead ends: 285 [2022-11-18 20:50:15,374 INFO L226 Difference]: Without dead ends: 267 [2022-11-18 20:50:15,375 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=437, Invalid=1045, Unknown=0, NotChecked=0, Total=1482 [2022-11-18 20:50:15,375 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 260 mSDsluCounter, 1602 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 1817 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-18 20:50:15,375 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [260 Valid, 1817 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 490 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-18 20:50:15,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2022-11-18 20:50:15,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 222. [2022-11-18 20:50:15,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 134 states have (on average 1.4402985074626866) internal successors, (193), 179 states have internal predecessors, (193), 35 states have call successors, (35), 10 states have call predecessors, (35), 11 states have return successors, (40), 35 states have call predecessors, (40), 35 states have call successors, (40) [2022-11-18 20:50:15,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 268 transitions. [2022-11-18 20:50:15,388 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 268 transitions. Word has length 25 [2022-11-18 20:50:15,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:50:15,388 INFO L495 AbstractCegarLoop]: Abstraction has 222 states and 268 transitions. [2022-11-18 20:50:15,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.3333333333333335) internal successors, (42), 18 states have internal predecessors, (42), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-18 20:50:15,389 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 268 transitions. [2022-11-18 20:50:15,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-18 20:50:15,390 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:50:15,390 INFO L195 NwaCegarLoop]: trace histogram [8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:50:15,409 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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)] Forceful destruction successful, exit code 0 [2022-11-18 20:50:15,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 20:50:15,604 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [DUPFFnewErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 52 more)] === [2022-11-18 20:50:15,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:50:15,604 INFO L85 PathProgramCache]: Analyzing trace with hash 168356342, now seen corresponding path program 2 times [2022-11-18 20:50:15,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:50:15,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [680631549] [2022-11-18 20:50:15,604 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 20:50:15,604 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 20:50:15,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:50:15,606 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 20:50:15,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 (11)] Waiting until timeout for monitored process [2022-11-18 20:50:15,761 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-18 20:50:15,762 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:50:15,768 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-18 20:50:15,770 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:50:16,014 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-11-18 20:50:16,014 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:50:16,014 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:50:16,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [680631549] [2022-11-18 20:50:16,014 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [680631549] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:50:16,014 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:50:16,014 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 20:50:16,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407021230] [2022-11-18 20:50:16,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:50:16,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 20:50:16,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:50:16,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 20:50:16,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:50:16,016 INFO L87 Difference]: Start difference. First operand 222 states and 268 transitions. Second operand has 7 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 20:50:16,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:50:16,722 INFO L93 Difference]: Finished difference Result 220 states and 266 transitions. [2022-11-18 20:50:16,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 20:50:16,723 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 29 [2022-11-18 20:50:16,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:50:16,724 INFO L225 Difference]: With dead ends: 220 [2022-11-18 20:50:16,724 INFO L226 Difference]: Without dead ends: 220 [2022-11-18 20:50:16,724 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:50:16,725 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 26 mSDsluCounter, 617 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 809 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-18 20:50:16,725 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 809 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-18 20:50:16,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2022-11-18 20:50:16,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 220. [2022-11-18 20:50:16,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 134 states have (on average 1.4253731343283582) internal successors, (191), 177 states have internal predecessors, (191), 35 states have call successors, (35), 10 states have call predecessors, (35), 11 states have return successors, (40), 35 states have call predecessors, (40), 35 states have call successors, (40) [2022-11-18 20:50:16,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 266 transitions. [2022-11-18 20:50:16,734 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 266 transitions. Word has length 29 [2022-11-18 20:50:16,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:50:16,735 INFO L495 AbstractCegarLoop]: Abstraction has 220 states and 266 transitions. [2022-11-18 20:50:16,735 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 20:50:16,735 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 266 transitions. [2022-11-18 20:50:16,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-18 20:50:16,736 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:50:16,736 INFO L195 NwaCegarLoop]: trace histogram [8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:50:16,749 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 (11)] Forceful destruction successful, exit code 0 [2022-11-18 20:50:16,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 20:50:16,948 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [DUPFFnewErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 52 more)] === [2022-11-18 20:50:16,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:50:16,949 INFO L85 PathProgramCache]: Analyzing trace with hash 924079462, now seen corresponding path program 1 times [2022-11-18 20:50:16,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:50:16,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1037847765] [2022-11-18 20:50:16,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:50:16,950 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 20:50:16,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:50:16,951 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 20:50:16,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 (12)] Waiting until timeout for monitored process [2022-11-18 20:50:17,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:50:17,271 INFO L263 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 30 conjunts are in the unsatisfiable core [2022-11-18 20:50:17,278 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:50:17,293 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 20:50:17,354 INFO L321 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2022-11-18 20:50:17,354 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 20:50:17,397 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-18 20:50:17,604 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-18 20:50:17,605 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 37 [2022-11-18 20:50:17,645 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-18 20:50:17,645 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 37 [2022-11-18 20:50:17,688 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-18 20:50:17,688 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 37 [2022-11-18 20:50:17,729 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-18 20:50:17,729 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 37 [2022-11-18 20:50:17,771 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-18 20:50:17,771 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 37 [2022-11-18 20:50:17,813 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-18 20:50:17,813 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 37 [2022-11-18 20:50:17,851 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-18 20:50:17,851 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 37 [2022-11-18 20:50:17,893 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-18 20:50:17,893 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 37 [2022-11-18 20:50:17,943 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 55 [2022-11-18 20:50:17,988 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 57 [2022-11-18 20:50:18,162 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 15 [2022-11-18 20:50:18,220 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-18 20:50:18,220 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:50:23,592 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_552 (Array (_ BitVec 32) (_ BitVec 32)))) (= (bvadd (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_DUPFFnew_#t~mem34#1.base| v_ArrVal_552) |c_DUPFFnew_~ans~0#1.base|) (bvadd (_ bv8 32) |c_DUPFFnew_~ans~0#1.offset|))) (_ bv1 1)) (_ bv0 1))) is different from false [2022-11-18 20:50:23,610 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_552 (Array (_ BitVec 32) (_ BitVec 32)))) (= (bvadd (select |c_#valid| (let ((.cse0 (bvadd (_ bv8 32) |c_DUPFFnew_~ans~0#1.offset|))) (select (select (store |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| |c_DUPFFnew_~ans~0#1.base|) .cse0) v_ArrVal_552) |c_DUPFFnew_~ans~0#1.base|) .cse0))) (_ bv1 1)) (_ bv0 1))) is different from false [2022-11-18 20:50:23,633 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 20:50:23,633 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 27 [2022-11-18 20:50:23,639 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 32 [2022-11-18 20:50:23,645 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-18 20:50:27,874 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-18 20:50:27,875 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:50:27,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1037847765] [2022-11-18 20:50:27,875 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1037847765] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:50:27,875 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 20:50:27,875 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 20 [2022-11-18 20:50:27,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467530495] [2022-11-18 20:50:27,875 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 20:50:27,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-18 20:50:27,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:50:27,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-18 20:50:27,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=287, Unknown=4, NotChecked=70, Total=420 [2022-11-18 20:50:27,877 INFO L87 Difference]: Start difference. First operand 220 states and 266 transitions. Second operand has 21 states, 20 states have (on average 2.1) internal successors, (42), 19 states have internal predecessors, (42), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-18 20:50:29,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:50:29,988 INFO L93 Difference]: Finished difference Result 219 states and 265 transitions. [2022-11-18 20:50:29,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-18 20:50:29,989 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 2.1) internal successors, (42), 19 states have internal predecessors, (42), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 30 [2022-11-18 20:50:29,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:50:29,990 INFO L225 Difference]: With dead ends: 219 [2022-11-18 20:50:29,990 INFO L226 Difference]: Without dead ends: 219 [2022-11-18 20:50:29,991 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 39 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=92, Invalid=418, Unknown=4, NotChecked=86, Total=600 [2022-11-18 20:50:29,991 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 40 mSDsluCounter, 1941 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 2134 SdHoareTripleChecker+Invalid, 897 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 393 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-18 20:50:29,992 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 2134 Invalid, 897 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 499 Invalid, 0 Unknown, 393 Unchecked, 1.7s Time] [2022-11-18 20:50:29,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2022-11-18 20:50:29,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 219. [2022-11-18 20:50:30,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 134 states have (on average 1.4179104477611941) internal successors, (190), 176 states have internal predecessors, (190), 35 states have call successors, (35), 10 states have call predecessors, (35), 11 states have return successors, (40), 35 states have call predecessors, (40), 35 states have call successors, (40) [2022-11-18 20:50:30,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 265 transitions. [2022-11-18 20:50:30,002 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 265 transitions. Word has length 30 [2022-11-18 20:50:30,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:50:30,003 INFO L495 AbstractCegarLoop]: Abstraction has 219 states and 265 transitions. [2022-11-18 20:50:30,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 2.1) internal successors, (42), 19 states have internal predecessors, (42), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-18 20:50:30,003 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 265 transitions. [2022-11-18 20:50:30,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-18 20:50:30,007 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:50:30,008 INFO L195 NwaCegarLoop]: trace histogram [8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:50:30,023 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 (12)] Forceful destruction successful, exit code 0 [2022-11-18 20:50:30,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 20:50:30,219 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [DUPFFnewErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 52 more)] === [2022-11-18 20:50:30,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:50:30,220 INFO L85 PathProgramCache]: Analyzing trace with hash 924079463, now seen corresponding path program 1 times [2022-11-18 20:50:30,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:50:30,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1454820776] [2022-11-18 20:50:30,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:50:30,220 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 20:50:30,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:50:30,221 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 20:50:30,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 (13)] Waiting until timeout for monitored process [2022-11-18 20:50:30,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:50:30,523 INFO L263 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 49 conjunts are in the unsatisfiable core [2022-11-18 20:50:30,529 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:50:30,535 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 20:50:30,591 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 10 treesize of output 9 [2022-11-18 20:50:30,614 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-11-18 20:50:30,615 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2022-11-18 20:50:30,662 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-18 20:50:30,676 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-18 20:50:30,997 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-18 20:50:30,997 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-11-18 20:50:31,010 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-18 20:50:31,045 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-18 20:50:31,046 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 39 [2022-11-18 20:50:31,137 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-18 20:50:31,137 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 39 [2022-11-18 20:50:31,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:50:31,167 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-11-18 20:50:31,205 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-18 20:50:31,205 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 39 [2022-11-18 20:50:31,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:50:31,236 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-11-18 20:50:31,275 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-18 20:50:31,275 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 39 [2022-11-18 20:50:31,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:50:31,304 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-11-18 20:50:31,344 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-18 20:50:31,344 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-11-18 20:50:31,356 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-18 20:50:31,391 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-18 20:50:31,391 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 39 [2022-11-18 20:50:31,476 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-18 20:50:31,476 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 39 [2022-11-18 20:50:31,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:50:31,504 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-11-18 20:50:31,540 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-18 20:50:31,541 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 39 [2022-11-18 20:50:31,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:50:31,571 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-11-18 20:50:31,640 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-18 20:50:31,640 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 49 [2022-11-18 20:50:31,656 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 24 [2022-11-18 20:50:31,720 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 47 [2022-11-18 20:50:31,734 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 57 [2022-11-18 20:50:31,765 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 49 [2022-11-18 20:50:31,779 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 59 [2022-11-18 20:50:32,034 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2022-11-18 20:50:32,048 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 19 treesize of output 7 [2022-11-18 20:50:32,101 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-18 20:50:32,101 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:51:19,962 WARN L233 SmtUtils]: Spent 47.50s on a formula simplification that was a NOOP. DAG size: 195 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-18 20:51:31,635 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 20:51:31,635 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 36 [2022-11-18 20:51:31,641 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 36 [2022-11-18 20:51:31,683 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 20:51:31,683 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 46 [2022-11-18 20:51:31,709 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 20:51:31,709 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 36 [2022-11-18 20:51:31,729 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:51:31,736 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 33 treesize of output 21 [2022-11-18 20:51:31,744 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:51:31,749 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 24 treesize of output 12 [2022-11-18 20:51:32,187 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-18 20:51:32,188 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:51:32,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1454820776] [2022-11-18 20:51:32,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1454820776] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:51:32,189 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 20:51:32,189 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 20 [2022-11-18 20:51:32,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718324756] [2022-11-18 20:51:32,189 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 20:51:32,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-18 20:51:32,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:51:32,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-18 20:51:32,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=361, Unknown=4, NotChecked=0, Total=420 [2022-11-18 20:51:32,191 INFO L87 Difference]: Start difference. First operand 219 states and 265 transitions. Second operand has 21 states, 20 states have (on average 2.1) internal successors, (42), 19 states have internal predecessors, (42), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-18 20:51:37,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:51:37,862 INFO L93 Difference]: Finished difference Result 220 states and 267 transitions. [2022-11-18 20:51:37,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-18 20:51:37,864 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 2.1) internal successors, (42), 19 states have internal predecessors, (42), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 30 [2022-11-18 20:51:37,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:51:37,865 INFO L225 Difference]: With dead ends: 220 [2022-11-18 20:51:37,865 INFO L226 Difference]: Without dead ends: 220 [2022-11-18 20:51:37,866 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 39 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=150, Invalid=838, Unknown=4, NotChecked=0, Total=992 [2022-11-18 20:51:37,866 INFO L413 NwaCegarLoop]: 183 mSDtfsCounter, 57 mSDsluCounter, 1771 mSDsCounter, 0 mSdLazyCounter, 667 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 1954 SdHoareTripleChecker+Invalid, 948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 667 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 274 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-11-18 20:51:37,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 1954 Invalid, 948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 667 Invalid, 0 Unknown, 274 Unchecked, 3.8s Time] [2022-11-18 20:51:37,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2022-11-18 20:51:37,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 218. [2022-11-18 20:51:37,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 134 states have (on average 1.4104477611940298) internal successors, (189), 175 states have internal predecessors, (189), 35 states have call successors, (35), 10 states have call predecessors, (35), 11 states have return successors, (40), 35 states have call predecessors, (40), 35 states have call successors, (40) [2022-11-18 20:51:37,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 264 transitions. [2022-11-18 20:51:37,886 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 264 transitions. Word has length 30 [2022-11-18 20:51:37,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:51:37,887 INFO L495 AbstractCegarLoop]: Abstraction has 218 states and 264 transitions. [2022-11-18 20:51:37,887 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 2.1) internal successors, (42), 19 states have internal predecessors, (42), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-18 20:51:37,887 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 264 transitions. [2022-11-18 20:51:37,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-11-18 20:51:37,894 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:51:37,895 INFO L195 NwaCegarLoop]: trace histogram [8, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:51:37,911 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 (13)] Forceful destruction successful, exit code 0 [2022-11-18 20:51:38,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 20:51:38,109 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting DUPFFnewErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE === [DUPFFnewErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 52 more)] === [2022-11-18 20:51:38,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:51:38,110 INFO L85 PathProgramCache]: Analyzing trace with hash 2092985884, now seen corresponding path program 1 times [2022-11-18 20:51:38,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:51:38,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [961201716] [2022-11-18 20:51:38,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:51:38,111 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 20:51:38,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:51:38,112 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 20:51:38,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 (14)] Waiting until timeout for monitored process [2022-11-18 20:51:38,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:38,448 INFO L263 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-18 20:51:38,454 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:51:38,487 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 10 treesize of output 9 [2022-11-18 20:51:38,532 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-18 20:51:38,545 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-18 20:51:38,620 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2022-11-18 20:51:38,629 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-11-18 20:51:38,717 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-11-18 20:51:38,718 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:51:38,718 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:51:38,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [961201716] [2022-11-18 20:51:38,718 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [961201716] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:51:38,718 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:51:38,718 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 20:51:38,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906540908] [2022-11-18 20:51:38,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:51:38,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 20:51:38,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:51:38,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 20:51:38,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:51:38,720 INFO L87 Difference]: Start difference. First operand 218 states and 264 transitions. Second operand has 8 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 20:51:39,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:51:39,919 INFO L93 Difference]: Finished difference Result 230 states and 271 transitions. [2022-11-18 20:51:39,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-18 20:51:39,921 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 42 [2022-11-18 20:51:39,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:51:39,922 INFO L225 Difference]: With dead ends: 230 [2022-11-18 20:51:39,922 INFO L226 Difference]: Without dead ends: 218 [2022-11-18 20:51:39,923 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=85, Invalid=187, Unknown=0, NotChecked=0, Total=272 [2022-11-18 20:51:39,923 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 65 mSDsluCounter, 696 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 902 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-18 20:51:39,924 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 902 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-18 20:51:39,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2022-11-18 20:51:39,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 213. [2022-11-18 20:51:39,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 130 states have (on average 1.376923076923077) internal successors, (179), 170 states have internal predecessors, (179), 35 states have call successors, (35), 10 states have call predecessors, (35), 10 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2022-11-18 20:51:39,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 249 transitions. [2022-11-18 20:51:39,931 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 249 transitions. Word has length 42 [2022-11-18 20:51:39,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:51:39,932 INFO L495 AbstractCegarLoop]: Abstraction has 213 states and 249 transitions. [2022-11-18 20:51:39,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 20:51:39,932 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 249 transitions. [2022-11-18 20:51:39,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-11-18 20:51:39,933 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:51:39,933 INFO L195 NwaCegarLoop]: trace histogram [13, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:51:39,954 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 (14)] Ended with exit code 0 [2022-11-18 20:51:40,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 20:51:40,149 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [DUPFFnewErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 52 more)] === [2022-11-18 20:51:40,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:51:40,150 INFO L85 PathProgramCache]: Analyzing trace with hash -562772518, now seen corresponding path program 1 times [2022-11-18 20:51:40,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:51:40,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1910883844] [2022-11-18 20:51:40,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:51:40,150 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 20:51:40,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:51:40,151 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 20:51:40,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 (15)] Waiting until timeout for monitored process [2022-11-18 20:51:40,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:40,563 INFO L263 TraceCheckSpWp]: Trace formula consists of 476 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-18 20:51:40,565 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:51:40,919 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 68 proven. 15 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-11-18 20:51:40,920 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:51:41,702 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 68 proven. 15 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-11-18 20:51:41,702 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:51:41,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1910883844] [2022-11-18 20:51:41,702 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1910883844] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:51:41,702 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 20:51:41,702 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2022-11-18 20:51:41,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603650318] [2022-11-18 20:51:41,703 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 20:51:41,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-18 20:51:41,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:51:41,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-18 20:51:41,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=276, Unknown=0, NotChecked=0, Total=380 [2022-11-18 20:51:41,704 INFO L87 Difference]: Start difference. First operand 213 states and 249 transitions. Second operand has 20 states, 20 states have (on average 3.25) internal successors, (65), 20 states have internal predecessors, (65), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-18 20:51:45,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:51:45,274 INFO L93 Difference]: Finished difference Result 291 states and 368 transitions. [2022-11-18 20:51:45,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-11-18 20:51:45,275 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.25) internal successors, (65), 20 states have internal predecessors, (65), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 56 [2022-11-18 20:51:45,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:51:45,277 INFO L225 Difference]: With dead ends: 291 [2022-11-18 20:51:45,277 INFO L226 Difference]: Without dead ends: 279 [2022-11-18 20:51:45,278 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 434 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=641, Invalid=1521, Unknown=0, NotChecked=0, Total=2162 [2022-11-18 20:51:45,278 INFO L413 NwaCegarLoop]: 213 mSDtfsCounter, 306 mSDsluCounter, 2158 mSDsCounter, 0 mSdLazyCounter, 648 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 2371 SdHoareTripleChecker+Invalid, 689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 648 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-18 20:51:45,279 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [306 Valid, 2371 Invalid, 689 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 648 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-18 20:51:45,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2022-11-18 20:51:45,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 220. [2022-11-18 20:51:45,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 137 states have (on average 1.3576642335766422) internal successors, (186), 177 states have internal predecessors, (186), 35 states have call successors, (35), 10 states have call predecessors, (35), 10 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2022-11-18 20:51:45,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 256 transitions. [2022-11-18 20:51:45,294 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 256 transitions. Word has length 56 [2022-11-18 20:51:45,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:51:45,295 INFO L495 AbstractCegarLoop]: Abstraction has 220 states and 256 transitions. [2022-11-18 20:51:45,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 3.25) internal successors, (65), 20 states have internal predecessors, (65), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-18 20:51:45,295 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 256 transitions. [2022-11-18 20:51:45,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-18 20:51:45,297 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:51:45,297 INFO L195 NwaCegarLoop]: trace histogram [20, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:51:45,318 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 (15)] Forceful destruction successful, exit code 0 [2022-11-18 20:51:45,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 20:51:45,513 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [DUPFFnewErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 52 more)] === [2022-11-18 20:51:45,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:51:45,514 INFO L85 PathProgramCache]: Analyzing trace with hash -2097093162, now seen corresponding path program 2 times [2022-11-18 20:51:45,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:51:45,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1936531982] [2022-11-18 20:51:45,515 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 20:51:45,515 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:51:45,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:51:45,517 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 20:51:45,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 (16)] Waiting until timeout for monitored process [2022-11-18 20:51:45,755 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-18 20:51:45,755 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:51:45,762 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 20:51:45,765 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:51:45,824 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2022-11-18 20:51:45,824 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:51:45,824 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:51:45,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1936531982] [2022-11-18 20:51:45,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1936531982] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:51:45,825 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:51:45,825 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:51:45,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475378900] [2022-11-18 20:51:45,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:51:45,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:51:45,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:51:45,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:51:45,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:51:45,826 INFO L87 Difference]: Start difference. First operand 220 states and 256 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-18 20:51:46,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:51:46,666 INFO L93 Difference]: Finished difference Result 218 states and 254 transitions. [2022-11-18 20:51:46,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:51:46,666 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 63 [2022-11-18 20:51:46,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:51:46,667 INFO L225 Difference]: With dead ends: 218 [2022-11-18 20:51:46,667 INFO L226 Difference]: Without dead ends: 218 [2022-11-18 20:51:46,668 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:51:46,668 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 23 mSDsluCounter, 552 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 738 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-18 20:51:46,669 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 738 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-18 20:51:46,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2022-11-18 20:51:46,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2022-11-18 20:51:46,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 137 states have (on average 1.3430656934306568) internal successors, (184), 175 states have internal predecessors, (184), 35 states have call successors, (35), 10 states have call predecessors, (35), 10 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2022-11-18 20:51:46,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 254 transitions. [2022-11-18 20:51:46,677 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 254 transitions. Word has length 63 [2022-11-18 20:51:46,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:51:46,677 INFO L495 AbstractCegarLoop]: Abstraction has 218 states and 254 transitions. [2022-11-18 20:51:46,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-18 20:51:46,678 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 254 transitions. [2022-11-18 20:51:46,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-18 20:51:46,678 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:51:46,679 INFO L195 NwaCegarLoop]: trace histogram [20, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:51:46,692 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 (16)] Forceful destruction successful, exit code 0 [2022-11-18 20:51:46,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 20:51:46,892 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [DUPFFnewErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 52 more)] === [2022-11-18 20:51:46,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:51:46,892 INFO L85 PathProgramCache]: Analyzing trace with hash -2097093161, now seen corresponding path program 1 times [2022-11-18 20:51:46,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:51:46,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1902980610] [2022-11-18 20:51:46,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:51:46,893 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 20:51:46,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:51:46,896 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 20:51:46,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 (17)] Waiting until timeout for monitored process [2022-11-18 20:51:47,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:47,367 INFO L263 TraceCheckSpWp]: Trace formula consists of 553 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-18 20:51:47,369 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:51:47,667 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 131 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2022-11-18 20:51:47,667 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:51:47,668 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:51:47,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1902980610] [2022-11-18 20:51:47,668 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1902980610] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:51:47,668 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:51:47,668 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 20:51:47,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561357765] [2022-11-18 20:51:47,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:51:47,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 20:51:47,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:51:47,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 20:51:47,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:51:47,670 INFO L87 Difference]: Start difference. First operand 218 states and 254 transitions. Second operand has 7 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-18 20:51:48,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:51:48,483 INFO L93 Difference]: Finished difference Result 216 states and 252 transitions. [2022-11-18 20:51:48,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 20:51:48,484 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 63 [2022-11-18 20:51:48,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:51:48,485 INFO L225 Difference]: With dead ends: 216 [2022-11-18 20:51:48,486 INFO L226 Difference]: Without dead ends: 216 [2022-11-18 20:51:48,486 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:51:48,487 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 25 mSDsluCounter, 601 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 787 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-18 20:51:48,487 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 787 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-18 20:51:48,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2022-11-18 20:51:48,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 216. [2022-11-18 20:51:48,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 137 states have (on average 1.3284671532846715) internal successors, (182), 173 states have internal predecessors, (182), 35 states have call successors, (35), 10 states have call predecessors, (35), 10 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2022-11-18 20:51:48,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 252 transitions. [2022-11-18 20:51:48,494 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 252 transitions. Word has length 63 [2022-11-18 20:51:48,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:51:48,494 INFO L495 AbstractCegarLoop]: Abstraction has 216 states and 252 transitions. [2022-11-18 20:51:48,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-18 20:51:48,495 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 252 transitions. [2022-11-18 20:51:48,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-11-18 20:51:48,495 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:51:48,496 INFO L195 NwaCegarLoop]: trace histogram [20, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:51:48,511 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 (17)] Forceful destruction successful, exit code 0 [2022-11-18 20:51:48,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 20:51:48,703 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [DUPFFnewErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 52 more)] === [2022-11-18 20:51:48,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:51:48,704 INFO L85 PathProgramCache]: Analyzing trace with hash -585378383, now seen corresponding path program 1 times [2022-11-18 20:51:48,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:51:48,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [926230639] [2022-11-18 20:51:48,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:51:48,705 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 20:51:48,705 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:51:48,706 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 20:51:48,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 (18)] Waiting until timeout for monitored process [2022-11-18 20:51:49,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:49,595 INFO L263 TraceCheckSpWp]: Trace formula consists of 559 conjuncts, 37 conjunts are in the unsatisfiable core [2022-11-18 20:51:49,601 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:51:49,612 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 20:51:49,675 INFO L321 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2022-11-18 20:51:49,676 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 20:51:49,730 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-18 20:51:49,995 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-18 20:51:49,996 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 37 [2022-11-18 20:51:50,050 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-18 20:51:50,051 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 37 [2022-11-18 20:51:50,094 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-18 20:51:50,094 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 37 [2022-11-18 20:51:50,137 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-18 20:51:50,137 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 37 [2022-11-18 20:51:50,185 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-18 20:51:50,185 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 37 [2022-11-18 20:51:50,236 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-18 20:51:50,236 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 37 [2022-11-18 20:51:50,281 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-18 20:51:50,281 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 37 [2022-11-18 20:51:50,324 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-18 20:51:50,325 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 37 [2022-11-18 20:51:50,377 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-18 20:51:50,377 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 37 [2022-11-18 20:51:50,418 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-18 20:51:50,418 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 37 [2022-11-18 20:51:50,461 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-18 20:51:50,461 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 37 [2022-11-18 20:51:50,503 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-18 20:51:50,503 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 37 [2022-11-18 20:51:50,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:51:50,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:51:50,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:51:50,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:51:50,564 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 55 [2022-11-18 20:51:50,595 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 57 [2022-11-18 20:51:50,770 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2022-11-18 20:51:50,819 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 131 proven. 12 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2022-11-18 20:51:50,819 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:51:56,511 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1933 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_DUPFFnew_#t~mem34#1.base| v_ArrVal_1933) |c_DUPFFnew_~ans~0#1.base|) (bvadd (_ bv8 32) |c_DUPFFnew_~ans~0#1.offset|))) (_ bv1 1)))) is different from false [2022-11-18 20:51:56,524 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1933 (Array (_ BitVec 32) (_ BitVec 32)))) (= (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse0 (bvadd (_ bv8 32) |c_DUPFFnew_~ans~0#1.offset|))) (select (select (store |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| |c_DUPFFnew_~ans~0#1.base|) .cse0) v_ArrVal_1933) |c_DUPFFnew_~ans~0#1.base|) .cse0)))) (_ bv0 1))) is different from false [2022-11-18 20:51:56,540 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 20:51:56,541 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 27 [2022-11-18 20:51:56,544 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 32 [2022-11-18 20:51:56,547 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-18 20:51:58,713 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 131 proven. 12 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2022-11-18 20:51:58,714 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:51:58,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [926230639] [2022-11-18 20:51:58,714 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [926230639] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:51:58,714 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 20:51:58,715 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 20 [2022-11-18 20:51:58,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220670108] [2022-11-18 20:51:58,715 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 20:51:58,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-18 20:51:58,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:51:58,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-18 20:51:58,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=288, Unknown=3, NotChecked=70, Total=420 [2022-11-18 20:51:58,716 INFO L87 Difference]: Start difference. First operand 216 states and 252 transitions. Second operand has 21 states, 20 states have (on average 3.15) internal successors, (63), 19 states have internal predecessors, (63), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-18 20:52:00,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:52:00,508 INFO L93 Difference]: Finished difference Result 220 states and 259 transitions. [2022-11-18 20:52:00,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-18 20:52:00,509 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.15) internal successors, (63), 19 states have internal predecessors, (63), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 64 [2022-11-18 20:52:00,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:52:00,510 INFO L225 Difference]: With dead ends: 220 [2022-11-18 20:52:00,510 INFO L226 Difference]: Without dead ends: 220 [2022-11-18 20:52:00,511 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 108 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=92, Invalid=419, Unknown=3, NotChecked=86, Total=600 [2022-11-18 20:52:00,511 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 51 mSDsluCounter, 1762 mSDsCounter, 0 mSdLazyCounter, 407 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 1948 SdHoareTripleChecker+Invalid, 792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 381 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-18 20:52:00,511 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 1948 Invalid, 792 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 407 Invalid, 0 Unknown, 381 Unchecked, 1.5s Time] [2022-11-18 20:52:00,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2022-11-18 20:52:00,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 215. [2022-11-18 20:52:00,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 137 states have (on average 1.3211678832116789) internal successors, (181), 172 states have internal predecessors, (181), 35 states have call successors, (35), 10 states have call predecessors, (35), 10 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2022-11-18 20:52:00,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 251 transitions. [2022-11-18 20:52:00,518 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 251 transitions. Word has length 64 [2022-11-18 20:52:00,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:52:00,519 INFO L495 AbstractCegarLoop]: Abstraction has 215 states and 251 transitions. [2022-11-18 20:52:00,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.15) internal successors, (63), 19 states have internal predecessors, (63), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-18 20:52:00,520 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 251 transitions. [2022-11-18 20:52:00,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-11-18 20:52:00,520 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:52:00,520 INFO L195 NwaCegarLoop]: trace histogram [20, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:52:00,543 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 (18)] Forceful destruction successful, exit code 0 [2022-11-18 20:52:00,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 20:52:00,741 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [DUPFFnewErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 52 more)] === [2022-11-18 20:52:00,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:52:00,741 INFO L85 PathProgramCache]: Analyzing trace with hash -585378382, now seen corresponding path program 1 times [2022-11-18 20:52:00,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:52:00,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1468441586] [2022-11-18 20:52:00,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:52:00,742 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 20:52:00,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:52:00,743 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 20:52:00,744 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 (19)] Waiting until timeout for monitored process [2022-11-18 20:52:01,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:01,700 INFO L263 TraceCheckSpWp]: Trace formula consists of 559 conjuncts, 59 conjunts are in the unsatisfiable core [2022-11-18 20:52:01,707 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:52:01,716 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 20:52:01,754 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 10 treesize of output 9 [2022-11-18 20:52:01,779 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-11-18 20:52:01,779 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2022-11-18 20:52:01,836 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-18 20:52:01,853 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-18 20:52:02,160 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-18 20:52:02,160 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 39 [2022-11-18 20:52:02,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:52:02,188 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-11-18 20:52:02,228 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-18 20:52:02,229 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-11-18 20:52:02,237 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-18 20:52:02,274 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-18 20:52:02,275 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 39 [2022-11-18 20:52:02,364 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-18 20:52:02,364 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 39 [2022-11-18 20:52:02,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:52:02,394 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-11-18 20:52:02,438 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-18 20:52:02,439 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-11-18 20:52:02,449 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-18 20:52:02,482 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-18 20:52:02,483 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 39 [2022-11-18 20:52:02,569 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-18 20:52:02,569 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 39 [2022-11-18 20:52:02,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:52:02,598 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-11-18 20:52:02,642 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-18 20:52:02,642 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-11-18 20:52:02,653 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-18 20:52:02,687 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-18 20:52:02,688 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 39 [2022-11-18 20:52:02,788 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-18 20:52:02,788 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-11-18 20:52:02,809 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-18 20:52:02,838 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-18 20:52:02,838 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 39 [2022-11-18 20:52:02,912 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-18 20:52:02,913 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 39 [2022-11-18 20:52:02,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:52:02,944 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-11-18 20:52:03,001 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-18 20:52:03,001 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-11-18 20:52:03,007 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-18 20:52:03,045 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-18 20:52:03,045 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 39 [2022-11-18 20:52:03,138 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-18 20:52:03,138 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-11-18 20:52:03,148 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-18 20:52:03,181 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-18 20:52:03,181 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 39 [2022-11-18 20:52:03,262 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-18 20:52:03,263 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 39 [2022-11-18 20:52:03,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:52:03,295 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-11-18 20:52:03,338 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-18 20:52:03,339 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 49 [2022-11-18 20:52:03,359 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 24 [2022-11-18 20:52:03,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:52:03,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:52:03,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:52:03,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:52:03,427 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 47 [2022-11-18 20:52:03,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:52:03,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:52:03,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:52:03,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:52:03,448 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 57 [2022-11-18 20:52:03,474 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 49 [2022-11-18 20:52:03,484 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 59 [2022-11-18 20:52:03,727 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2022-11-18 20:52:03,735 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 15 treesize of output 7 [2022-11-18 20:52:03,781 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 131 proven. 12 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2022-11-18 20:52:03,781 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:53:12,465 WARN L233 SmtUtils]: Spent 1.14m on a formula simplification that was a NOOP. DAG size: 228 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-18 20:53:21,596 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 20:53:21,597 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 36 [2022-11-18 20:53:21,601 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 36 [2022-11-18 20:53:21,618 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-18 20:53:21,638 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 20:53:21,639 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 46 [2022-11-18 20:53:21,657 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 20:53:21,657 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 36 [2022-11-18 20:53:21,663 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:53:21,669 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 33 treesize of output 21 [2022-11-18 20:53:21,673 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:53:21,678 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 24 treesize of output 12 [2022-11-18 20:53:22,071 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 131 proven. 12 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2022-11-18 20:53:22,071 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:53:22,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1468441586] [2022-11-18 20:53:22,072 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1468441586] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:53:22,072 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 20:53:22,072 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 20 [2022-11-18 20:53:22,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503452312] [2022-11-18 20:53:22,072 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 20:53:22,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-18 20:53:22,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:53:22,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-18 20:53:22,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=360, Unknown=5, NotChecked=0, Total=420 [2022-11-18 20:53:22,073 INFO L87 Difference]: Start difference. First operand 215 states and 251 transitions. Second operand has 21 states, 20 states have (on average 3.15) internal successors, (63), 19 states have internal predecessors, (63), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-18 20:53:26,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:53:26,899 INFO L93 Difference]: Finished difference Result 221 states and 261 transitions. [2022-11-18 20:53:26,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-18 20:53:26,900 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.15) internal successors, (63), 19 states have internal predecessors, (63), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 64 [2022-11-18 20:53:26,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:53:26,901 INFO L225 Difference]: With dead ends: 221 [2022-11-18 20:53:26,901 INFO L226 Difference]: Without dead ends: 221 [2022-11-18 20:53:26,901 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 103 SyntacticMatches, 6 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=104, Invalid=647, Unknown=5, NotChecked=0, Total=756 [2022-11-18 20:53:26,902 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 45 mSDsluCounter, 1613 mSDsCounter, 0 mSdLazyCounter, 580 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 1789 SdHoareTripleChecker+Invalid, 861 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 274 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-11-18 20:53:26,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 1789 Invalid, 861 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 580 Invalid, 0 Unknown, 274 Unchecked, 3.4s Time] [2022-11-18 20:53:26,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2022-11-18 20:53:26,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 214. [2022-11-18 20:53:26,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 137 states have (on average 1.313868613138686) internal successors, (180), 171 states have internal predecessors, (180), 35 states have call successors, (35), 10 states have call predecessors, (35), 10 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2022-11-18 20:53:26,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 250 transitions. [2022-11-18 20:53:26,909 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 250 transitions. Word has length 64 [2022-11-18 20:53:26,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:53:26,910 INFO L495 AbstractCegarLoop]: Abstraction has 214 states and 250 transitions. [2022-11-18 20:53:26,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.15) internal successors, (63), 19 states have internal predecessors, (63), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-18 20:53:26,910 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 250 transitions. [2022-11-18 20:53:26,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-11-18 20:53:26,911 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:53:26,911 INFO L195 NwaCegarLoop]: trace histogram [20, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:53:26,935 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 (19)] Ended with exit code 0 [2022-11-18 20:53:27,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 20:53:27,125 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting DUPFFdegErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [DUPFFnewErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 52 more)] === [2022-11-18 20:53:27,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:53:27,126 INFO L85 PathProgramCache]: Analyzing trace with hash -1825741073, now seen corresponding path program 1 times [2022-11-18 20:53:27,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:53:27,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [414823414] [2022-11-18 20:53:27,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:53:27,126 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 20:53:27,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:53:27,127 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 20:53:27,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 (20)] Waiting until timeout for monitored process [2022-11-18 20:53:27,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:27,881 INFO L263 TraceCheckSpWp]: Trace formula consists of 636 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-18 20:53:27,884 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:53:27,887 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 20:53:28,000 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_2649 (_ BitVec 1))) (= |c_#valid| (store |c_old(#valid)| |c_DUPFFnew_~ans~0#1.base| v_ArrVal_2649))) is different from true [2022-11-18 20:53:28,010 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_2649 (_ BitVec 1))) (= |c_#valid| (store (store |c_old(#valid)| |c_DUPFFnew_~ans~0#1.base| v_ArrVal_2649) |c_DUPFFnew_#t~malloc33#1.base| (_ bv1 1)))) is different from true [2022-11-18 20:53:28,018 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-18 20:53:28,027 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_2649 (_ BitVec 1))) (= (store (store |c_old(#valid)| |c_DUPFFnew_~ans~0#1.base| v_ArrVal_2649) (select (select |c_#memory_$Pointer$.base| |c_DUPFFnew_~ans~0#1.base|) (bvadd (_ bv8 32) |c_DUPFFnew_~ans~0#1.offset|)) (_ bv1 1)) |c_#valid|)) is different from true [2022-11-18 20:53:28,036 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2022-11-18 20:53:28,044 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_2649 (_ BitVec 1))) (= (store (store |c_old(#valid)| |c_DUPFFnew_~ans~0#1.base| v_ArrVal_2649) |c_DUPFFnew_#t~mem34#1.base| (_ bv1 1)) |c_#valid|)) is different from true [2022-11-18 20:53:28,052 WARN L859 $PredicateComparison]: unable to prove that (exists ((|DUPFFnew_#Ultimate.C_memset_#ptr#1.base| (_ BitVec 32)) (v_ArrVal_2649 (_ BitVec 1))) (= (store (store |c_old(#valid)| |c_DUPFFnew_~ans~0#1.base| v_ArrVal_2649) |DUPFFnew_#Ultimate.C_memset_#ptr#1.base| (_ bv1 1)) |c_#valid|)) is different from true [2022-11-18 20:53:28,201 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:53:28,238 INFO L321 Elim1Store]: treesize reduction 34, result has 35.8 percent of original size [2022-11-18 20:53:28,238 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 31 [2022-11-18 20:53:28,395 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 114 trivial. 123 not checked. [2022-11-18 20:53:28,395 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:53:29,225 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 6 proven. 126 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2022-11-18 20:53:29,225 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:53:29,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [414823414] [2022-11-18 20:53:29,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [414823414] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:53:29,225 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 20:53:29,226 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 12] total 19 [2022-11-18 20:53:29,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320904274] [2022-11-18 20:53:29,226 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 20:53:29,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-18 20:53:29,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:53:29,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-18 20:53:29,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=179, Unknown=5, NotChecked=150, Total=380 [2022-11-18 20:53:29,228 INFO L87 Difference]: Start difference. First operand 214 states and 250 transitions. Second operand has 20 states, 18 states have (on average 3.5) internal successors, (63), 16 states have internal predecessors, (63), 3 states have call successors, (5), 5 states have call predecessors, (5), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-18 20:53:31,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:53:31,777 INFO L93 Difference]: Finished difference Result 253 states and 304 transitions. [2022-11-18 20:53:31,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-18 20:53:31,777 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 18 states have (on average 3.5) internal successors, (63), 16 states have internal predecessors, (63), 3 states have call successors, (5), 5 states have call predecessors, (5), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 71 [2022-11-18 20:53:31,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:53:31,779 INFO L225 Difference]: With dead ends: 253 [2022-11-18 20:53:31,779 INFO L226 Difference]: Without dead ends: 253 [2022-11-18 20:53:31,779 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 120 SyntacticMatches, 5 SemanticMatches, 28 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=119, Invalid=496, Unknown=5, NotChecked=250, Total=870 [2022-11-18 20:53:31,780 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 85 mSDsluCounter, 958 mSDsCounter, 0 mSdLazyCounter, 787 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 1133 SdHoareTripleChecker+Invalid, 2038 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 787 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1226 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-18 20:53:31,780 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 1133 Invalid, 2038 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 787 Invalid, 0 Unknown, 1226 Unchecked, 1.8s Time] [2022-11-18 20:53:31,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2022-11-18 20:53:31,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 236. [2022-11-18 20:53:31,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 152 states have (on average 1.3289473684210527) internal successors, (202), 187 states have internal predecessors, (202), 39 states have call successors, (39), 12 states have call predecessors, (39), 13 states have return successors, (41), 39 states have call predecessors, (41), 39 states have call successors, (41) [2022-11-18 20:53:31,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 282 transitions. [2022-11-18 20:53:31,788 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 282 transitions. Word has length 71 [2022-11-18 20:53:31,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:53:31,788 INFO L495 AbstractCegarLoop]: Abstraction has 236 states and 282 transitions. [2022-11-18 20:53:31,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 18 states have (on average 3.5) internal successors, (63), 16 states have internal predecessors, (63), 3 states have call successors, (5), 5 states have call predecessors, (5), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-18 20:53:31,789 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 282 transitions. [2022-11-18 20:53:31,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-11-18 20:53:31,790 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:53:31,790 INFO L195 NwaCegarLoop]: trace histogram [20, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:53:31,814 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 (20)] Forceful destruction successful, exit code 0 [2022-11-18 20:53:32,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 20:53:32,010 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting DUPFFdegErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [DUPFFnewErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 52 more)] === [2022-11-18 20:53:32,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:53:32,010 INFO L85 PathProgramCache]: Analyzing trace with hash -1825741072, now seen corresponding path program 1 times [2022-11-18 20:53:32,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:53:32,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1981116688] [2022-11-18 20:53:32,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:53:32,011 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 20:53:32,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:53:32,013 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 20:53:32,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 (21)] Waiting until timeout for monitored process [2022-11-18 20:53:32,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:32,854 INFO L263 TraceCheckSpWp]: Trace formula consists of 636 conjuncts, 35 conjunts are in the unsatisfiable core [2022-11-18 20:53:32,857 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:53:33,343 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-18 20:53:33,448 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 17 [2022-11-18 20:53:33,466 WARN L859 $PredicateComparison]: unable to prove that (exists ((|DUPFFnew_~ans~0#1.base| (_ BitVec 32)) (v_ArrVal_2939 (_ BitVec 32))) (and (= |c_#length| (store (store |c_old(#length)| |DUPFFnew_~ans~0#1.base| v_ArrVal_2939) |c_DUPFFnew_#t~mem34#1.base| (bvadd (_ bv4 32) (bvmul |c_DUPFFnew_#in~maxdeg#1| (_ bv4 32))))) (= (_ bv0 1) (select |c_old(#valid)| |DUPFFnew_~ans~0#1.base|)))) is different from true [2022-11-18 20:53:33,485 WARN L859 $PredicateComparison]: unable to prove that (exists ((|DUPFFnew_#Ultimate.C_memset_#ptr#1.base| (_ BitVec 32)) (|DUPFFnew_~ans~0#1.base| (_ BitVec 32)) (v_ArrVal_2939 (_ BitVec 32))) (and (= (store (store |c_old(#length)| |DUPFFnew_~ans~0#1.base| v_ArrVal_2939) |DUPFFnew_#Ultimate.C_memset_#ptr#1.base| (bvadd (_ bv4 32) (bvmul |c_DUPFFnew_#in~maxdeg#1| (_ bv4 32)))) |c_#length|) (= (_ bv0 1) (select |c_old(#valid)| |DUPFFnew_~ans~0#1.base|)))) is different from true [2022-11-18 20:53:33,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:53:33,802 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-18 20:53:33,802 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 2 case distinctions, treesize of input 17 treesize of output 29 [2022-11-18 20:53:33,825 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-11-18 20:53:33,825 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2022-11-18 20:53:34,299 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 114 trivial. 126 not checked. [2022-11-18 20:53:34,300 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:53:37,553 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:53:37,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1981116688] [2022-11-18 20:53:37,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1981116688] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:53:37,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2034806195] [2022-11-18 20:53:37,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:53:37,554 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-18 20:53:37,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/bin/uautomizer-TMbwUNV5ro/cvc4 [2022-11-18 20:53:37,557 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/bin/uautomizer-TMbwUNV5ro/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-18 20:53:37,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/bin/uautomizer-TMbwUNV5ro/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process [2022-11-18 20:53:39,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:39,908 INFO L263 TraceCheckSpWp]: Trace formula consists of 636 conjuncts, 42 conjunts are in the unsatisfiable core [2022-11-18 20:53:39,913 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:53:39,919 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 20:53:39,925 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 20:53:40,055 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-18 20:53:40,055 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 18 [2022-11-18 20:53:40,079 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-11-18 20:53:40,080 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2022-11-18 20:53:40,791 WARN L859 $PredicateComparison]: unable to prove that (exists ((|DUPFFnew_#t~malloc33#1.base| (_ BitVec 32)) (|DUPFFnew_~ans~0#1.base| (_ BitVec 32)) (v_ArrVal_2939 (_ BitVec 32))) (and (= (store (store |c_old(#length)| |DUPFFnew_~ans~0#1.base| v_ArrVal_2939) |DUPFFnew_#t~malloc33#1.base| (bvadd (_ bv4 32) (bvmul |c_DUPFFnew_#in~maxdeg#1| (_ bv4 32)))) |c_#length|) (= (_ bv0 1) (select |c_old(#valid)| |DUPFFnew_~ans~0#1.base|)))) is different from true [2022-11-18 20:53:41,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:53:41,143 INFO L321 Elim1Store]: treesize reduction 24, result has 38.5 percent of original size [2022-11-18 20:53:41,143 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 2 case distinctions, treesize of input 15 treesize of output 23 [2022-11-18 20:53:41,163 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-11-18 20:53:41,163 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2022-11-18 20:53:41,683 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 114 trivial. 128 not checked. [2022-11-18 20:53:41,684 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:53:42,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2034806195] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:53:42,562 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 20:53:42,562 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 16] total 30 [2022-11-18 20:53:42,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139998959] [2022-11-18 20:53:42,562 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 20:53:42,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-11-18 20:53:42,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:53:42,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-11-18 20:53:42,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=1027, Unknown=3, NotChecked=198, Total=1332 [2022-11-18 20:53:42,564 INFO L87 Difference]: Start difference. First operand 236 states and 282 transitions. Second operand has 31 states, 28 states have (on average 3.1785714285714284) internal successors, (89), 24 states have internal predecessors, (89), 7 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-18 20:53:47,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:53:47,144 INFO L93 Difference]: Finished difference Result 269 states and 324 transitions. [2022-11-18 20:53:47,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-18 20:53:47,145 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 28 states have (on average 3.1785714285714284) internal successors, (89), 24 states have internal predecessors, (89), 7 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 71 [2022-11-18 20:53:47,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:53:47,146 INFO L225 Difference]: With dead ends: 269 [2022-11-18 20:53:47,146 INFO L226 Difference]: Without dead ends: 269 [2022-11-18 20:53:47,146 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 129 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 381 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=174, Invalid=1727, Unknown=3, NotChecked=258, Total=2162 [2022-11-18 20:53:47,147 INFO L413 NwaCegarLoop]: 144 mSDtfsCounter, 144 mSDsluCounter, 1653 mSDsCounter, 0 mSdLazyCounter, 1420 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 1797 SdHoareTripleChecker+Invalid, 3031 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 1420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1533 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-11-18 20:53:47,147 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 1797 Invalid, 3031 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 1420 Invalid, 0 Unknown, 1533 Unchecked, 3.3s Time] [2022-11-18 20:53:47,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2022-11-18 20:53:47,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 244. [2022-11-18 20:53:47,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 158 states have (on average 1.3101265822784811) internal successors, (207), 192 states have internal predecessors, (207), 40 states have call successors, (40), 13 states have call predecessors, (40), 14 states have return successors, (43), 41 states have call predecessors, (43), 40 states have call successors, (43) [2022-11-18 20:53:47,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 290 transitions. [2022-11-18 20:53:47,156 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 290 transitions. Word has length 71 [2022-11-18 20:53:47,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:53:47,156 INFO L495 AbstractCegarLoop]: Abstraction has 244 states and 290 transitions. [2022-11-18 20:53:47,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 28 states have (on average 3.1785714285714284) internal successors, (89), 24 states have internal predecessors, (89), 7 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-18 20:53:47,157 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 290 transitions. [2022-11-18 20:53:47,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-11-18 20:53:47,157 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:53:47,158 INFO L195 NwaCegarLoop]: trace histogram [20, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:53:47,169 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/bin/uautomizer-TMbwUNV5ro/cvc4 --incremental --print-success --lang smt (22)] Forceful destruction successful, exit code 0 [2022-11-18 20:53:47,393 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 (21)] Forceful destruction successful, exit code 0 [2022-11-18 20:53:47,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/bin/uautomizer-TMbwUNV5ro/cvc4 --incremental --print-success --lang smt,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 20:53:47,569 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting DUPFFdegErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [DUPFFnewErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 52 more)] === [2022-11-18 20:53:47,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:53:47,569 INFO L85 PathProgramCache]: Analyzing trace with hash -242190254, now seen corresponding path program 1 times [2022-11-18 20:53:47,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:53:47,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1524311314] [2022-11-18 20:53:47,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:53:47,570 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 20:53:47,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:53:47,571 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 20:53:47,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 (23)] Waiting until timeout for monitored process [2022-11-18 20:53:48,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:48,210 INFO L263 TraceCheckSpWp]: Trace formula consists of 650 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-18 20:53:48,212 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:53:48,389 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2022-11-18 20:53:48,389 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:53:48,389 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:53:48,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1524311314] [2022-11-18 20:53:48,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1524311314] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:53:48,389 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:53:48,389 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-18 20:53:48,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900177063] [2022-11-18 20:53:48,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:53:48,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-18 20:53:48,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:53:48,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-18 20:53:48,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-11-18 20:53:48,391 INFO L87 Difference]: Start difference. First operand 244 states and 290 transitions. Second operand has 11 states, 9 states have (on average 4.222222222222222) internal successors, (38), 8 states have internal predecessors, (38), 3 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-18 20:53:49,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:53:49,736 INFO L93 Difference]: Finished difference Result 250 states and 295 transitions. [2022-11-18 20:53:49,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-18 20:53:49,736 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 4.222222222222222) internal successors, (38), 8 states have internal predecessors, (38), 3 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 77 [2022-11-18 20:53:49,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:53:49,737 INFO L225 Difference]: With dead ends: 250 [2022-11-18 20:53:49,737 INFO L226 Difference]: Without dead ends: 250 [2022-11-18 20:53:49,738 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 66 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-11-18 20:53:49,738 INFO L413 NwaCegarLoop]: 182 mSDtfsCounter, 23 mSDsluCounter, 1068 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 1250 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 49 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-18 20:53:49,739 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 1250 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 464 Invalid, 0 Unknown, 49 Unchecked, 1.3s Time] [2022-11-18 20:53:49,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2022-11-18 20:53:49,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 249. [2022-11-18 20:53:49,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 162 states have (on average 1.308641975308642) internal successors, (212), 196 states have internal predecessors, (212), 40 states have call successors, (40), 14 states have call predecessors, (40), 15 states have return successors, (43), 41 states have call predecessors, (43), 40 states have call successors, (43) [2022-11-18 20:53:49,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 295 transitions. [2022-11-18 20:53:49,747 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 295 transitions. Word has length 77 [2022-11-18 20:53:49,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:53:49,747 INFO L495 AbstractCegarLoop]: Abstraction has 249 states and 295 transitions. [2022-11-18 20:53:49,747 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 4.222222222222222) internal successors, (38), 8 states have internal predecessors, (38), 3 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-18 20:53:49,747 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 295 transitions. [2022-11-18 20:53:49,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-11-18 20:53:49,748 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:53:49,748 INFO L195 NwaCegarLoop]: trace histogram [20, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:53:49,777 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 (23)] Forceful destruction successful, exit code 0 [2022-11-18 20:53:49,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 20:53:49,967 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting DUPFFdegErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [DUPFFnewErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 52 more)] === [2022-11-18 20:53:49,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:53:49,967 INFO L85 PathProgramCache]: Analyzing trace with hash -242190253, now seen corresponding path program 1 times [2022-11-18 20:53:49,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:53:49,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1827443959] [2022-11-18 20:53:49,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:53:49,968 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 20:53:49,968 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:53:49,969 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 20:53:49,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 (24)] Waiting until timeout for monitored process [2022-11-18 20:53:50,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:50,598 INFO L263 TraceCheckSpWp]: Trace formula consists of 650 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-18 20:53:50,600 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:53:51,063 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 133 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2022-11-18 20:53:51,063 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:53:51,063 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:53:51,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1827443959] [2022-11-18 20:53:51,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1827443959] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:53:51,064 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:53:51,064 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-18 20:53:51,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811116836] [2022-11-18 20:53:51,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:53:51,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 20:53:51,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:53:51,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 20:53:51,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-11-18 20:53:51,066 INFO L87 Difference]: Start difference. First operand 249 states and 295 transitions. Second operand has 12 states, 10 states have (on average 5.1) internal successors, (51), 9 states have internal predecessors, (51), 3 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-18 20:53:51,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:53:51,860 INFO L93 Difference]: Finished difference Result 254 states and 302 transitions. [2022-11-18 20:53:51,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-18 20:53:51,864 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 5.1) internal successors, (51), 9 states have internal predecessors, (51), 3 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 77 [2022-11-18 20:53:51,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:53:51,865 INFO L225 Difference]: With dead ends: 254 [2022-11-18 20:53:51,865 INFO L226 Difference]: Without dead ends: 254 [2022-11-18 20:53:51,866 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 65 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2022-11-18 20:53:51,866 INFO L413 NwaCegarLoop]: 188 mSDtfsCounter, 39 mSDsluCounter, 511 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 699 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 55 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-18 20:53:51,866 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 699 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 153 Invalid, 0 Unknown, 55 Unchecked, 0.7s Time] [2022-11-18 20:53:51,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2022-11-18 20:53:51,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 249. [2022-11-18 20:53:51,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 162 states have (on average 1.3024691358024691) internal successors, (211), 196 states have internal predecessors, (211), 40 states have call successors, (40), 14 states have call predecessors, (40), 15 states have return successors, (43), 41 states have call predecessors, (43), 40 states have call successors, (43) [2022-11-18 20:53:51,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 294 transitions. [2022-11-18 20:53:51,874 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 294 transitions. Word has length 77 [2022-11-18 20:53:51,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:53:51,874 INFO L495 AbstractCegarLoop]: Abstraction has 249 states and 294 transitions. [2022-11-18 20:53:51,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 5.1) internal successors, (51), 9 states have internal predecessors, (51), 3 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-18 20:53:51,875 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 294 transitions. [2022-11-18 20:53:51,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-11-18 20:53:51,875 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:53:51,876 INFO L195 NwaCegarLoop]: trace histogram [20, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:53:51,899 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 (24)] Forceful destruction successful, exit code 0 [2022-11-18 20:53:52,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 20:53:52,094 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting DUPFFdegErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [DUPFFnewErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 52 more)] === [2022-11-18 20:53:52,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:53:52,095 INFO L85 PathProgramCache]: Analyzing trace with hash -1668104532, now seen corresponding path program 1 times [2022-11-18 20:53:52,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:53:52,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1820602000] [2022-11-18 20:53:52,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:53:52,096 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 20:53:52,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:53:52,097 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 20:53:52,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 (25)] Waiting until timeout for monitored process [2022-11-18 20:53:52,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:52,904 INFO L263 TraceCheckSpWp]: Trace formula consists of 665 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-18 20:53:52,906 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:53:53,348 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 4 proven. 136 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2022-11-18 20:53:53,348 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:53:53,752 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2022-11-18 20:53:54,004 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 20:53:54,004 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 20 [2022-11-18 20:53:55,033 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 3 proven. 136 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2022-11-18 20:53:55,033 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:53:55,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1820602000] [2022-11-18 20:53:55,034 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1820602000] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:53:55,034 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 20:53:55,034 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12] total 24 [2022-11-18 20:53:55,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877023263] [2022-11-18 20:53:55,034 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 20:53:55,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-18 20:53:55,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:53:55,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-18 20:53:55,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2022-11-18 20:53:55,036 INFO L87 Difference]: Start difference. First operand 249 states and 294 transitions. Second operand has 25 states, 22 states have (on average 4.2727272727272725) internal successors, (94), 19 states have internal predecessors, (94), 7 states have call successors, (11), 6 states have call predecessors, (11), 6 states have return successors, (8), 6 states have call predecessors, (8), 7 states have call successors, (8) [2022-11-18 20:53:59,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:53:59,922 INFO L93 Difference]: Finished difference Result 269 states and 313 transitions. [2022-11-18 20:53:59,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-18 20:53:59,923 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 22 states have (on average 4.2727272727272725) internal successors, (94), 19 states have internal predecessors, (94), 7 states have call successors, (11), 6 states have call predecessors, (11), 6 states have return successors, (8), 6 states have call predecessors, (8), 7 states have call successors, (8) Word has length 84 [2022-11-18 20:53:59,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:53:59,925 INFO L225 Difference]: With dead ends: 269 [2022-11-18 20:53:59,925 INFO L226 Difference]: Without dead ends: 269 [2022-11-18 20:53:59,925 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 143 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=128, Invalid=864, Unknown=0, NotChecked=0, Total=992 [2022-11-18 20:53:59,926 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 121 mSDsluCounter, 2180 mSDsCounter, 0 mSdLazyCounter, 887 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 2366 SdHoareTripleChecker+Invalid, 1002 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 887 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 98 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-11-18 20:53:59,926 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 2366 Invalid, 1002 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 887 Invalid, 0 Unknown, 98 Unchecked, 4.3s Time] [2022-11-18 20:53:59,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2022-11-18 20:53:59,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 259. [2022-11-18 20:53:59,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 170 states have (on average 1.2941176470588236) internal successors, (220), 203 states have internal predecessors, (220), 41 states have call successors, (41), 17 states have call predecessors, (41), 16 states have return successors, (44), 41 states have call predecessors, (44), 41 states have call successors, (44) [2022-11-18 20:53:59,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 305 transitions. [2022-11-18 20:53:59,934 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 305 transitions. Word has length 84 [2022-11-18 20:53:59,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:53:59,935 INFO L495 AbstractCegarLoop]: Abstraction has 259 states and 305 transitions. [2022-11-18 20:53:59,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 22 states have (on average 4.2727272727272725) internal successors, (94), 19 states have internal predecessors, (94), 7 states have call successors, (11), 6 states have call predecessors, (11), 6 states have return successors, (8), 6 states have call predecessors, (8), 7 states have call successors, (8) [2022-11-18 20:53:59,935 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 305 transitions. [2022-11-18 20:53:59,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-11-18 20:53:59,936 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:53:59,936 INFO L195 NwaCegarLoop]: trace histogram [20, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:53:59,956 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 (25)] Forceful destruction successful, exit code 0 [2022-11-18 20:54:00,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 20:54:00,155 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting DUPFFdegErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [DUPFFnewErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 52 more)] === [2022-11-18 20:54:00,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:54:00,155 INFO L85 PathProgramCache]: Analyzing trace with hash -1112953710, now seen corresponding path program 1 times [2022-11-18 20:54:00,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:54:00,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1409991482] [2022-11-18 20:54:00,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:54:00,156 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 20:54:00,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:54:00,157 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 20:54:00,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 (26)] Waiting until timeout for monitored process [2022-11-18 20:54:00,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:00,869 INFO L263 TraceCheckSpWp]: Trace formula consists of 691 conjuncts, 15 conjunts are in the unsatisfiable core [2022-11-18 20:54:00,872 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:54:01,207 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2022-11-18 20:54:01,207 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:54:01,321 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2022-11-18 20:54:01,321 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:54:01,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1409991482] [2022-11-18 20:54:01,321 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1409991482] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:54:01,321 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 20:54:01,321 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11] total 12 [2022-11-18 20:54:01,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397948724] [2022-11-18 20:54:01,322 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 20:54:01,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-18 20:54:01,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:54:01,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-18 20:54:01,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-11-18 20:54:01,323 INFO L87 Difference]: Start difference. First operand 259 states and 305 transitions. Second operand has 13 states, 11 states have (on average 4.0) internal successors, (44), 9 states have internal predecessors, (44), 4 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-18 20:54:02,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:54:02,763 INFO L93 Difference]: Finished difference Result 281 states and 331 transitions. [2022-11-18 20:54:02,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-18 20:54:02,763 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 4.0) internal successors, (44), 9 states have internal predecessors, (44), 4 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 86 [2022-11-18 20:54:02,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:54:02,764 INFO L225 Difference]: With dead ends: 281 [2022-11-18 20:54:02,765 INFO L226 Difference]: Without dead ends: 281 [2022-11-18 20:54:02,765 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 157 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2022-11-18 20:54:02,766 INFO L413 NwaCegarLoop]: 187 mSDtfsCounter, 64 mSDsluCounter, 888 mSDsCounter, 0 mSdLazyCounter, 542 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 1075 SdHoareTripleChecker+Invalid, 614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 542 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 60 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-18 20:54:02,766 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 1075 Invalid, 614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 542 Invalid, 0 Unknown, 60 Unchecked, 1.3s Time] [2022-11-18 20:54:02,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2022-11-18 20:54:02,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 266. [2022-11-18 20:54:02,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 175 states have (on average 1.2914285714285714) internal successors, (226), 208 states have internal predecessors, (226), 42 states have call successors, (42), 19 states have call predecessors, (42), 17 states have return successors, (45), 41 states have call predecessors, (45), 42 states have call successors, (45) [2022-11-18 20:54:02,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 313 transitions. [2022-11-18 20:54:02,774 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 313 transitions. Word has length 86 [2022-11-18 20:54:02,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:54:02,775 INFO L495 AbstractCegarLoop]: Abstraction has 266 states and 313 transitions. [2022-11-18 20:54:02,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 4.0) internal successors, (44), 9 states have internal predecessors, (44), 4 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-18 20:54:02,775 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 313 transitions. [2022-11-18 20:54:02,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-11-18 20:54:02,776 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:54:02,776 INFO L195 NwaCegarLoop]: trace histogram [20, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:54:02,796 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 (26)] Forceful destruction successful, exit code 0 [2022-11-18 20:54:02,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 20:54:02,993 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting DUPFFdegErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [DUPFFnewErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 52 more)] === [2022-11-18 20:54:02,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:54:02,993 INFO L85 PathProgramCache]: Analyzing trace with hash -1112953709, now seen corresponding path program 1 times [2022-11-18 20:54:02,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:54:02,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [683864072] [2022-11-18 20:54:02,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:54:02,994 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 20:54:02,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:54:02,995 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 20:54:02,997 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 (27)] Waiting until timeout for monitored process [2022-11-18 20:54:03,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:03,711 INFO L263 TraceCheckSpWp]: Trace formula consists of 691 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-18 20:54:03,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:54:04,338 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 135 proven. 2 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2022-11-18 20:54:04,338 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:54:05,714 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 20 [2022-11-18 20:54:05,906 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 135 proven. 2 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2022-11-18 20:54:05,907 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:54:05,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [683864072] [2022-11-18 20:54:05,907 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [683864072] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:54:05,907 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 20:54:05,907 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12] total 24 [2022-11-18 20:54:05,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751312290] [2022-11-18 20:54:05,907 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 20:54:05,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-18 20:54:05,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:54:05,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-18 20:54:05,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=530, Unknown=0, NotChecked=0, Total=600 [2022-11-18 20:54:05,909 INFO L87 Difference]: Start difference. First operand 266 states and 313 transitions. Second operand has 25 states, 22 states have (on average 3.772727272727273) internal successors, (83), 17 states have internal predecessors, (83), 7 states have call successors, (12), 8 states have call predecessors, (12), 4 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) [2022-11-18 20:54:10,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:54:10,813 INFO L93 Difference]: Finished difference Result 284 states and 333 transitions. [2022-11-18 20:54:10,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-18 20:54:10,814 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 22 states have (on average 3.772727272727273) internal successors, (83), 17 states have internal predecessors, (83), 7 states have call successors, (12), 8 states have call predecessors, (12), 4 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) Word has length 86 [2022-11-18 20:54:10,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:54:10,815 INFO L225 Difference]: With dead ends: 284 [2022-11-18 20:54:10,816 INFO L226 Difference]: Without dead ends: 284 [2022-11-18 20:54:10,816 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 145 SyntacticMatches, 3 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=100, Invalid=712, Unknown=0, NotChecked=0, Total=812 [2022-11-18 20:54:10,817 INFO L413 NwaCegarLoop]: 184 mSDtfsCounter, 78 mSDsluCounter, 2220 mSDsCounter, 0 mSdLazyCounter, 1070 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 2404 SdHoareTripleChecker+Invalid, 1135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1070 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 58 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-11-18 20:54:10,817 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 2404 Invalid, 1135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1070 Invalid, 0 Unknown, 58 Unchecked, 4.6s Time] [2022-11-18 20:54:10,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2022-11-18 20:54:10,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 279. [2022-11-18 20:54:10,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 185 states have (on average 1.2972972972972974) internal successors, (240), 219 states have internal predecessors, (240), 44 states have call successors, (44), 20 states have call predecessors, (44), 18 states have return successors, (47), 42 states have call predecessors, (47), 44 states have call successors, (47) [2022-11-18 20:54:10,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 331 transitions. [2022-11-18 20:54:10,826 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 331 transitions. Word has length 86 [2022-11-18 20:54:10,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:54:10,826 INFO L495 AbstractCegarLoop]: Abstraction has 279 states and 331 transitions. [2022-11-18 20:54:10,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 22 states have (on average 3.772727272727273) internal successors, (83), 17 states have internal predecessors, (83), 7 states have call successors, (12), 8 states have call predecessors, (12), 4 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) [2022-11-18 20:54:10,827 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 331 transitions. [2022-11-18 20:54:10,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-11-18 20:54:10,828 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:54:10,828 INFO L195 NwaCegarLoop]: trace histogram [20, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:54:10,856 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 (27)] Forceful destruction successful, exit code 0 [2022-11-18 20:54:11,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 20:54:11,045 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting DUPFFdegErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [DUPFFnewErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 52 more)] === [2022-11-18 20:54:11,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:54:11,045 INFO L85 PathProgramCache]: Analyzing trace with hash 194820021, now seen corresponding path program 2 times [2022-11-18 20:54:11,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:54:11,046 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [863882299] [2022-11-18 20:54:11,046 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 20:54:11,046 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 20:54:11,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:54:11,047 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 20:54:11,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 (28)] Waiting until timeout for monitored process [2022-11-18 20:54:11,848 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 20:54:11,848 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:54:11,877 INFO L263 TraceCheckSpWp]: Trace formula consists of 705 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-18 20:54:11,879 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:54:12,063 INFO L134 CoverageAnalysis]: Checked inductivity of 270 backedges. 9 proven. 10 refuted. 0 times theorem prover too weak. 251 trivial. 0 not checked. [2022-11-18 20:54:12,063 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:54:12,150 INFO L321 Elim1Store]: treesize reduction 7, result has 30.0 percent of original size [2022-11-18 20:54:12,150 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 15 [2022-11-18 20:54:12,161 INFO L134 CoverageAnalysis]: Checked inductivity of 270 backedges. 7 proven. 10 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2022-11-18 20:54:12,162 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:54:12,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [863882299] [2022-11-18 20:54:12,162 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [863882299] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:54:12,162 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 20:54:12,162 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 8 [2022-11-18 20:54:12,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691258165] [2022-11-18 20:54:12,162 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 20:54:12,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-18 20:54:12,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:54:12,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-18 20:54:12,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-11-18 20:54:12,164 INFO L87 Difference]: Start difference. First operand 279 states and 331 transitions. Second operand has 9 states, 7 states have (on average 6.428571428571429) internal successors, (45), 8 states have internal predecessors, (45), 3 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-11-18 20:54:12,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:54:12,653 INFO L93 Difference]: Finished difference Result 285 states and 337 transitions. [2022-11-18 20:54:12,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-18 20:54:12,653 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 6.428571428571429) internal successors, (45), 8 states have internal predecessors, (45), 3 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 92 [2022-11-18 20:54:12,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:54:12,655 INFO L225 Difference]: With dead ends: 285 [2022-11-18 20:54:12,655 INFO L226 Difference]: Without dead ends: 285 [2022-11-18 20:54:12,655 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 174 SyntacticMatches, 5 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2022-11-18 20:54:12,656 INFO L413 NwaCegarLoop]: 187 mSDtfsCounter, 17 mSDsluCounter, 436 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 623 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 70 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-18 20:54:12,656 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 623 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 147 Invalid, 0 Unknown, 70 Unchecked, 0.4s Time] [2022-11-18 20:54:12,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2022-11-18 20:54:12,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 281. [2022-11-18 20:54:12,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281 states, 187 states have (on average 1.2941176470588236) internal successors, (242), 220 states have internal predecessors, (242), 44 states have call successors, (44), 21 states have call predecessors, (44), 18 states have return successors, (47), 42 states have call predecessors, (47), 44 states have call successors, (47) [2022-11-18 20:54:12,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 333 transitions. [2022-11-18 20:54:12,664 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 333 transitions. Word has length 92 [2022-11-18 20:54:12,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:54:12,664 INFO L495 AbstractCegarLoop]: Abstraction has 281 states and 333 transitions. [2022-11-18 20:54:12,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 6.428571428571429) internal successors, (45), 8 states have internal predecessors, (45), 3 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-11-18 20:54:12,665 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 333 transitions. [2022-11-18 20:54:12,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-11-18 20:54:12,666 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:54:12,666 INFO L195 NwaCegarLoop]: trace histogram [20, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:54:12,686 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 (28)] Forceful destruction successful, exit code 0 [2022-11-18 20:54:12,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 20:54:12,886 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting DUPFFdegErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [DUPFFnewErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 52 more)] === [2022-11-18 20:54:12,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:54:12,887 INFO L85 PathProgramCache]: Analyzing trace with hash 194820022, now seen corresponding path program 2 times [2022-11-18 20:54:12,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:54:12,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1569936273] [2022-11-18 20:54:12,887 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 20:54:12,888 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 20:54:12,888 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:54:12,888 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 20:54:12,891 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 (29)] Waiting until timeout for monitored process [2022-11-18 20:54:13,713 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 20:54:13,713 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:54:13,742 INFO L263 TraceCheckSpWp]: Trace formula consists of 705 conjuncts, 22 conjunts are in the unsatisfiable core [2022-11-18 20:54:13,744 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:54:14,426 INFO L134 CoverageAnalysis]: Checked inductivity of 270 backedges. 7 proven. 143 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2022-11-18 20:54:14,427 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:54:15,035 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2022-11-18 20:54:15,291 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 20:54:15,291 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 20 [2022-11-18 20:54:16,294 INFO L134 CoverageAnalysis]: Checked inductivity of 270 backedges. 5 proven. 143 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2022-11-18 20:54:16,295 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:54:16,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1569936273] [2022-11-18 20:54:16,295 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1569936273] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:54:16,295 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 20:54:16,295 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14] total 28 [2022-11-18 20:54:16,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477297335] [2022-11-18 20:54:16,295 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 20:54:16,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-11-18 20:54:16,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:54:16,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-11-18 20:54:16,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=732, Unknown=0, NotChecked=0, Total=812 [2022-11-18 20:54:16,297 INFO L87 Difference]: Start difference. First operand 281 states and 333 transitions. Second operand has 29 states, 24 states have (on average 4.0) internal successors, (96), 21 states have internal predecessors, (96), 9 states have call successors, (15), 8 states have call predecessors, (15), 6 states have return successors, (10), 8 states have call predecessors, (10), 9 states have call successors, (10) [2022-11-18 20:54:29,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:54:29,929 INFO L93 Difference]: Finished difference Result 444 states and 544 transitions. [2022-11-18 20:54:29,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-11-18 20:54:29,931 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 24 states have (on average 4.0) internal successors, (96), 21 states have internal predecessors, (96), 9 states have call successors, (15), 8 states have call predecessors, (15), 6 states have return successors, (10), 8 states have call predecessors, (10), 9 states have call successors, (10) Word has length 92 [2022-11-18 20:54:29,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:54:29,933 INFO L225 Difference]: With dead ends: 444 [2022-11-18 20:54:29,933 INFO L226 Difference]: Without dead ends: 444 [2022-11-18 20:54:29,934 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 153 SyntacticMatches, 3 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 327 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=189, Invalid=1617, Unknown=0, NotChecked=0, Total=1806 [2022-11-18 20:54:29,934 INFO L413 NwaCegarLoop]: 338 mSDtfsCounter, 278 mSDsluCounter, 4342 mSDsCounter, 0 mSdLazyCounter, 2267 mSolverCounterSat, 151 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 305 SdHoareTripleChecker+Valid, 4680 SdHoareTripleChecker+Invalid, 2553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 151 IncrementalHoareTripleChecker+Valid, 2267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 135 IncrementalHoareTripleChecker+Unchecked, 11.7s IncrementalHoareTripleChecker+Time [2022-11-18 20:54:29,935 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [305 Valid, 4680 Invalid, 2553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [151 Valid, 2267 Invalid, 0 Unknown, 135 Unchecked, 11.7s Time] [2022-11-18 20:54:29,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2022-11-18 20:54:29,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 391. [2022-11-18 20:54:29,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 391 states, 253 states have (on average 1.3952569169960474) internal successors, (353), 291 states have internal predecessors, (353), 82 states have call successors, (82), 24 states have call predecessors, (82), 24 states have return successors, (91), 81 states have call predecessors, (91), 82 states have call successors, (91) [2022-11-18 20:54:29,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 526 transitions. [2022-11-18 20:54:29,948 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 526 transitions. Word has length 92 [2022-11-18 20:54:29,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:54:29,948 INFO L495 AbstractCegarLoop]: Abstraction has 391 states and 526 transitions. [2022-11-18 20:54:29,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 24 states have (on average 4.0) internal successors, (96), 21 states have internal predecessors, (96), 9 states have call successors, (15), 8 states have call predecessors, (15), 6 states have return successors, (10), 8 states have call predecessors, (10), 9 states have call successors, (10) [2022-11-18 20:54:29,949 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 526 transitions. [2022-11-18 20:54:29,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-11-18 20:54:29,949 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:54:29,950 INFO L195 NwaCegarLoop]: trace histogram [20, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:54:29,970 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 (29)] Forceful destruction successful, exit code 0 [2022-11-18 20:54:30,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 20:54:30,164 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting DUPFFdegErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [DUPFFnewErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 52 more)] === [2022-11-18 20:54:30,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:54:30,164 INFO L85 PathProgramCache]: Analyzing trace with hash -947339607, now seen corresponding path program 1 times [2022-11-18 20:54:30,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:54:30,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1597337214] [2022-11-18 20:54:30,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:54:30,165 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 20:54:30,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:54:30,167 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 20:54:30,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 (30)] Waiting until timeout for monitored process [2022-11-18 20:54:30,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:30,942 INFO L263 TraceCheckSpWp]: Trace formula consists of 681 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-18 20:54:30,944 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:54:31,344 INFO L134 CoverageAnalysis]: Checked inductivity of 267 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 258 trivial. 0 not checked. [2022-11-18 20:54:31,344 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:54:31,344 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:54:31,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1597337214] [2022-11-18 20:54:31,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1597337214] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:54:31,344 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:54:31,344 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-18 20:54:31,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637904761] [2022-11-18 20:54:31,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:54:31,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-18 20:54:31,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:54:31,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-18 20:54:31,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-11-18 20:54:31,346 INFO L87 Difference]: Start difference. First operand 391 states and 526 transitions. Second operand has 11 states, 10 states have (on average 4.1) internal successors, (41), 8 states have internal predecessors, (41), 3 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 20:54:32,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:54:32,092 INFO L93 Difference]: Finished difference Result 400 states and 532 transitions. [2022-11-18 20:54:32,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-18 20:54:32,092 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 4.1) internal successors, (41), 8 states have internal predecessors, (41), 3 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 92 [2022-11-18 20:54:32,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:54:32,094 INFO L225 Difference]: With dead ends: 400 [2022-11-18 20:54:32,095 INFO L226 Difference]: Without dead ends: 400 [2022-11-18 20:54:32,095 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 77 SyntacticMatches, 5 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2022-11-18 20:54:32,096 INFO L413 NwaCegarLoop]: 190 mSDtfsCounter, 34 mSDsluCounter, 480 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 670 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 64 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-18 20:54:32,096 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 670 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 208 Invalid, 0 Unknown, 64 Unchecked, 0.7s Time] [2022-11-18 20:54:32,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2022-11-18 20:54:32,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 396. [2022-11-18 20:54:32,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 257 states have (on average 1.3891050583657587) internal successors, (357), 295 states have internal predecessors, (357), 82 states have call successors, (82), 25 states have call predecessors, (82), 25 states have return successors, (91), 81 states have call predecessors, (91), 82 states have call successors, (91) [2022-11-18 20:54:32,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 530 transitions. [2022-11-18 20:54:32,110 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 530 transitions. Word has length 92 [2022-11-18 20:54:32,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:54:32,110 INFO L495 AbstractCegarLoop]: Abstraction has 396 states and 530 transitions. [2022-11-18 20:54:32,110 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 4.1) internal successors, (41), 8 states have internal predecessors, (41), 3 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 20:54:32,111 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 530 transitions. [2022-11-18 20:54:32,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-11-18 20:54:32,111 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:54:32,111 INFO L195 NwaCegarLoop]: trace histogram [20, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:54:32,131 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 (30)] Forceful destruction successful, exit code 0 [2022-11-18 20:54:32,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 20:54:32,328 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting DUPFFexgcdErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [DUPFFnewErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 52 more)] === [2022-11-18 20:54:32,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:54:32,329 INFO L85 PathProgramCache]: Analyzing trace with hash -947573994, now seen corresponding path program 1 times [2022-11-18 20:54:32,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:54:32,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1504456042] [2022-11-18 20:54:32,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:54:32,329 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 20:54:32,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:54:32,330 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 20:54:32,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 (31)] Waiting until timeout for monitored process [2022-11-18 20:54:33,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:33,133 INFO L263 TraceCheckSpWp]: Trace formula consists of 682 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 20:54:33,134 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:54:33,146 INFO L134 CoverageAnalysis]: Checked inductivity of 261 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2022-11-18 20:54:33,146 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:54:33,147 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:54:33,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1504456042] [2022-11-18 20:54:33,147 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1504456042] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:54:33,147 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:54:33,147 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:54:33,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459880408] [2022-11-18 20:54:33,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:54:33,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:54:33,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:54:33,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:54:33,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:54:33,151 INFO L87 Difference]: Start difference. First operand 396 states and 530 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-18 20:54:33,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:54:33,163 INFO L93 Difference]: Finished difference Result 379 states and 495 transitions. [2022-11-18 20:54:33,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:54:33,163 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 92 [2022-11-18 20:54:33,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:54:33,166 INFO L225 Difference]: With dead ends: 379 [2022-11-18 20:54:33,166 INFO L226 Difference]: Without dead ends: 375 [2022-11-18 20:54:33,167 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 90 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 20:54:33,174 INFO L413 NwaCegarLoop]: 198 mSDtfsCounter, 0 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 391 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:54:33,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 391 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:54:33,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2022-11-18 20:54:33,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 375. [2022-11-18 20:54:33,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 241 states have (on average 1.3526970954356847) internal successors, (326), 277 states have internal predecessors, (326), 78 states have call successors, (78), 24 states have call predecessors, (78), 24 states have return successors, (87), 79 states have call predecessors, (87), 78 states have call successors, (87) [2022-11-18 20:54:33,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 491 transitions. [2022-11-18 20:54:33,189 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 491 transitions. Word has length 92 [2022-11-18 20:54:33,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:54:33,190 INFO L495 AbstractCegarLoop]: Abstraction has 375 states and 491 transitions. [2022-11-18 20:54:33,190 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-18 20:54:33,190 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 491 transitions. [2022-11-18 20:54:33,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-11-18 20:54:33,191 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:54:33,191 INFO L195 NwaCegarLoop]: trace histogram [20, 5, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:54:33,219 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 (31)] Forceful destruction successful, exit code 0 [2022-11-18 20:54:33,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 20:54:33,414 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting DUPFFdegErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [DUPFFnewErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 52 more)] === [2022-11-18 20:54:33,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:54:33,414 INFO L85 PathProgramCache]: Analyzing trace with hash -1134883697, now seen corresponding path program 3 times [2022-11-18 20:54:33,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:54:33,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1189600339] [2022-11-18 20:54:33,415 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 20:54:33,415 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 20:54:33,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:54:33,417 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 20:54:33,425 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 (32)] Waiting until timeout for monitored process [2022-11-18 20:54:34,786 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-18 20:54:34,787 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:54:34,822 INFO L263 TraceCheckSpWp]: Trace formula consists of 578 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-18 20:54:34,824 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:54:34,938 INFO L134 CoverageAnalysis]: Checked inductivity of 293 backedges. 25 proven. 1 refuted. 0 times theorem prover too weak. 267 trivial. 0 not checked. [2022-11-18 20:54:34,938 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:54:35,030 INFO L321 Elim1Store]: treesize reduction 7, result has 30.0 percent of original size [2022-11-18 20:54:35,030 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 15 [2022-11-18 20:54:35,055 INFO L134 CoverageAnalysis]: Checked inductivity of 293 backedges. 25 proven. 1 refuted. 0 times theorem prover too weak. 267 trivial. 0 not checked. [2022-11-18 20:54:35,055 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:54:35,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1189600339] [2022-11-18 20:54:35,055 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1189600339] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:54:35,055 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 20:54:35,055 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2022-11-18 20:54:35,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628386816] [2022-11-18 20:54:35,056 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 20:54:35,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 20:54:35,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:54:35,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 20:54:35,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:54:35,057 INFO L87 Difference]: Start difference. First operand 375 states and 491 transitions. Second operand has 8 states, 6 states have (on average 7.0) internal successors, (42), 7 states have internal predecessors, (42), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-18 20:54:36,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:54:36,696 INFO L93 Difference]: Finished difference Result 404 states and 523 transitions. [2022-11-18 20:54:36,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-18 20:54:36,697 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 7.0) internal successors, (42), 7 states have internal predecessors, (42), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 101 [2022-11-18 20:54:36,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:54:36,699 INFO L225 Difference]: With dead ends: 404 [2022-11-18 20:54:36,699 INFO L226 Difference]: Without dead ends: 404 [2022-11-18 20:54:36,700 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2022-11-18 20:54:36,700 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 79 mSDsluCounter, 770 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 976 SdHoareTripleChecker+Invalid, 572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-18 20:54:36,701 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 976 Invalid, 572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 529 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-18 20:54:36,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2022-11-18 20:54:36,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 369. [2022-11-18 20:54:36,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 369 states, 237 states have (on average 1.3459915611814346) internal successors, (319), 273 states have internal predecessors, (319), 78 states have call successors, (78), 23 states have call predecessors, (78), 23 states have return successors, (85), 78 states have call predecessors, (85), 78 states have call successors, (85) [2022-11-18 20:54:36,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 482 transitions. [2022-11-18 20:54:36,734 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 482 transitions. Word has length 101 [2022-11-18 20:54:36,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:54:36,735 INFO L495 AbstractCegarLoop]: Abstraction has 369 states and 482 transitions. [2022-11-18 20:54:36,735 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 7.0) internal successors, (42), 7 states have internal predecessors, (42), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-18 20:54:36,735 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 482 transitions. [2022-11-18 20:54:36,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-11-18 20:54:36,736 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:54:36,736 INFO L195 NwaCegarLoop]: trace histogram [20, 5, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:54:36,765 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 (32)] Forceful destruction successful, exit code 0 [2022-11-18 20:54:36,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 20:54:36,964 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting DUPFFdegErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [DUPFFnewErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 52 more)] === [2022-11-18 20:54:36,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:54:36,964 INFO L85 PathProgramCache]: Analyzing trace with hash -1134883696, now seen corresponding path program 3 times [2022-11-18 20:54:36,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:54:36,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1189574878] [2022-11-18 20:54:36,965 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 20:54:36,965 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 20:54:36,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:54:36,967 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 20:54:37,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 (33)] Waiting until timeout for monitored process [2022-11-18 20:54:38,295 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-18 20:54:38,295 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:54:38,330 INFO L263 TraceCheckSpWp]: Trace formula consists of 578 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-18 20:54:38,332 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:54:38,971 INFO L134 CoverageAnalysis]: Checked inductivity of 293 backedges. 21 proven. 139 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2022-11-18 20:54:38,972 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:54:39,705 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2022-11-18 20:54:40,004 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 20:54:40,005 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 20 [2022-11-18 20:54:41,505 INFO L134 CoverageAnalysis]: Checked inductivity of 293 backedges. 21 proven. 139 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2022-11-18 20:54:41,505 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:54:41,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1189574878] [2022-11-18 20:54:41,505 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1189574878] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:54:41,506 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 20:54:41,506 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 31 [2022-11-18 20:54:41,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733874042] [2022-11-18 20:54:41,506 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 20:54:41,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-11-18 20:54:41,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:54:41,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-11-18 20:54:41,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=903, Unknown=0, NotChecked=0, Total=992 [2022-11-18 20:54:41,508 INFO L87 Difference]: Start difference. First operand 369 states and 482 transitions. Second operand has 32 states, 27 states have (on average 3.5555555555555554) internal successors, (96), 22 states have internal predecessors, (96), 11 states have call successors, (19), 9 states have call predecessors, (19), 5 states have return successors, (12), 10 states have call predecessors, (12), 7 states have call successors, (12) [2022-11-18 20:54:57,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:54:57,713 INFO L93 Difference]: Finished difference Result 669 states and 905 transitions. [2022-11-18 20:54:57,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-11-18 20:54:57,715 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 27 states have (on average 3.5555555555555554) internal successors, (96), 22 states have internal predecessors, (96), 11 states have call successors, (19), 9 states have call predecessors, (19), 5 states have return successors, (12), 10 states have call predecessors, (12), 7 states have call successors, (12) Word has length 101 [2022-11-18 20:54:57,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:54:57,720 INFO L225 Difference]: With dead ends: 669 [2022-11-18 20:54:57,721 INFO L226 Difference]: Without dead ends: 669 [2022-11-18 20:54:57,727 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 387 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=283, Invalid=2167, Unknown=0, NotChecked=0, Total=2450 [2022-11-18 20:54:57,731 INFO L413 NwaCegarLoop]: 415 mSDtfsCounter, 867 mSDsluCounter, 6155 mSDsCounter, 0 mSdLazyCounter, 2750 mSolverCounterSat, 494 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 870 SdHoareTripleChecker+Valid, 6570 SdHoareTripleChecker+Invalid, 3244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 494 IncrementalHoareTripleChecker+Valid, 2750 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.5s IncrementalHoareTripleChecker+Time [2022-11-18 20:54:57,731 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [870 Valid, 6570 Invalid, 3244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [494 Valid, 2750 Invalid, 0 Unknown, 0 Unchecked, 13.5s Time] [2022-11-18 20:54:57,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 669 states. [2022-11-18 20:54:57,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 669 to 570. [2022-11-18 20:54:57,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 570 states, 353 states have (on average 1.501416430594901) internal successors, (530), 396 states have internal predecessors, (530), 163 states have call successors, (163), 25 states have call predecessors, (163), 23 states have return successors, (163), 163 states have call predecessors, (163), 163 states have call successors, (163) [2022-11-18 20:54:57,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 856 transitions. [2022-11-18 20:54:57,750 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 856 transitions. Word has length 101 [2022-11-18 20:54:57,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:54:57,751 INFO L495 AbstractCegarLoop]: Abstraction has 570 states and 856 transitions. [2022-11-18 20:54:57,751 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 27 states have (on average 3.5555555555555554) internal successors, (96), 22 states have internal predecessors, (96), 11 states have call successors, (19), 9 states have call predecessors, (19), 5 states have return successors, (12), 10 states have call predecessors, (12), 7 states have call successors, (12) [2022-11-18 20:54:57,751 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 856 transitions. [2022-11-18 20:54:57,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-11-18 20:54:57,752 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:54:57,752 INFO L195 NwaCegarLoop]: trace histogram [20, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:54:57,771 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 (33)] Forceful destruction successful, exit code 0 [2022-11-18 20:54:57,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 20:54:57,965 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting DUPFFexgcdErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [DUPFFnewErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 52 more)] === [2022-11-18 20:54:57,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:54:57,966 INFO L85 PathProgramCache]: Analyzing trace with hash 2143025534, now seen corresponding path program 1 times [2022-11-18 20:54:57,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:54:57,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1568699595] [2022-11-18 20:54:57,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:54:57,967 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 20:54:57,967 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:54:57,968 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 20:54:57,969 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 (34)] Waiting until timeout for monitored process [2022-11-18 20:54:59,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:59,040 INFO L263 TraceCheckSpWp]: Trace formula consists of 697 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-18 20:54:59,043 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:54:59,166 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 38 [2022-11-18 20:54:59,737 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-18 20:54:59,738 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 42 treesize of output 18 [2022-11-18 20:54:59,826 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 143 proven. 0 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2022-11-18 20:54:59,827 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:54:59,827 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:54:59,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1568699595] [2022-11-18 20:54:59,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1568699595] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:54:59,827 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:54:59,827 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-18 20:54:59,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310522] [2022-11-18 20:54:59,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:54:59,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-18 20:54:59,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:54:59,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-18 20:54:59,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2022-11-18 20:54:59,828 INFO L87 Difference]: Start difference. First operand 570 states and 856 transitions. Second operand has 15 states, 14 states have (on average 4.285714285714286) internal successors, (60), 12 states have internal predecessors, (60), 3 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-18 20:55:00,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:55:00,333 INFO L93 Difference]: Finished difference Result 507 states and 733 transitions. [2022-11-18 20:55:00,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-18 20:55:00,334 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 4.285714285714286) internal successors, (60), 12 states have internal predecessors, (60), 3 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) Word has length 99 [2022-11-18 20:55:00,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:55:00,337 INFO L225 Difference]: With dead ends: 507 [2022-11-18 20:55:00,337 INFO L226 Difference]: Without dead ends: 491 [2022-11-18 20:55:00,337 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 79 SyntacticMatches, 6 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2022-11-18 20:55:00,338 INFO L413 NwaCegarLoop]: 184 mSDtfsCounter, 14 mSDsluCounter, 1560 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 1744 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 101 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-18 20:55:00,338 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 1744 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 120 Invalid, 0 Unknown, 101 Unchecked, 0.4s Time] [2022-11-18 20:55:00,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2022-11-18 20:55:00,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 491. [2022-11-18 20:55:00,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 491 states, 305 states have (on average 1.4721311475409835) internal successors, (449), 345 states have internal predecessors, (449), 134 states have call successors, (134), 23 states have call predecessors, (134), 21 states have return successors, (134), 134 states have call predecessors, (134), 134 states have call successors, (134) [2022-11-18 20:55:00,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 717 transitions. [2022-11-18 20:55:00,353 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 717 transitions. Word has length 99 [2022-11-18 20:55:00,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:55:00,353 INFO L495 AbstractCegarLoop]: Abstraction has 491 states and 717 transitions. [2022-11-18 20:55:00,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 4.285714285714286) internal successors, (60), 12 states have internal predecessors, (60), 3 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-18 20:55:00,354 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 717 transitions. [2022-11-18 20:55:00,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-11-18 20:55:00,355 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:55:00,355 INFO L195 NwaCegarLoop]: trace histogram [20, 6, 5, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:55:00,380 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 (34)] Forceful destruction successful, exit code 0 [2022-11-18 20:55:00,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 20:55:00,573 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting DUPFFdegErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [DUPFFnewErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 52 more)] === [2022-11-18 20:55:00,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:55:00,573 INFO L85 PathProgramCache]: Analyzing trace with hash 957572595, now seen corresponding path program 4 times [2022-11-18 20:55:00,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:55:00,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [239874856] [2022-11-18 20:55:00,574 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-18 20:55:00,574 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 20:55:00,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:55:00,575 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 20:55:00,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 (35)] Waiting until timeout for monitored process [2022-11-18 20:55:01,583 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-18 20:55:01,583 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:55:01,614 INFO L263 TraceCheckSpWp]: Trace formula consists of 760 conjuncts, 31 conjunts are in the unsatisfiable core [2022-11-18 20:55:01,617 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:55:02,572 INFO L134 CoverageAnalysis]: Checked inductivity of 317 backedges. 141 proven. 8 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2022-11-18 20:55:02,572 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:55:04,104 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 20 [2022-11-18 20:55:04,298 INFO L134 CoverageAnalysis]: Checked inductivity of 317 backedges. 141 proven. 8 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2022-11-18 20:55:04,298 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:55:04,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [239874856] [2022-11-18 20:55:04,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [239874856] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:55:04,299 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 20:55:04,299 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12] total 24 [2022-11-18 20:55:04,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172848638] [2022-11-18 20:55:04,299 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 20:55:04,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-18 20:55:04,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:55:04,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-18 20:55:04,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=530, Unknown=0, NotChecked=0, Total=600 [2022-11-18 20:55:04,300 INFO L87 Difference]: Start difference. First operand 491 states and 717 transitions. Second operand has 25 states, 24 states have (on average 3.5416666666666665) internal successors, (85), 17 states have internal predecessors, (85), 7 states have call successors, (18), 8 states have call predecessors, (18), 4 states have return successors, (11), 7 states have call predecessors, (11), 5 states have call successors, (11) [2022-11-18 20:55:09,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:55:09,121 INFO L93 Difference]: Finished difference Result 508 states and 746 transitions. [2022-11-18 20:55:09,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-18 20:55:09,122 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.5416666666666665) internal successors, (85), 17 states have internal predecessors, (85), 7 states have call successors, (18), 8 states have call predecessors, (18), 4 states have return successors, (11), 7 states have call predecessors, (11), 5 states have call successors, (11) Word has length 107 [2022-11-18 20:55:09,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:55:09,125 INFO L225 Difference]: With dead ends: 508 [2022-11-18 20:55:09,125 INFO L226 Difference]: Without dead ends: 508 [2022-11-18 20:55:09,125 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 180 SyntacticMatches, 9 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=115, Invalid=815, Unknown=0, NotChecked=0, Total=930 [2022-11-18 20:55:09,126 INFO L413 NwaCegarLoop]: 194 mSDtfsCounter, 72 mSDsluCounter, 1905 mSDsCounter, 0 mSdLazyCounter, 892 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 2099 SdHoareTripleChecker+Invalid, 968 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 892 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 68 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-11-18 20:55:09,126 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 2099 Invalid, 968 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 892 Invalid, 0 Unknown, 68 Unchecked, 4.3s Time] [2022-11-18 20:55:09,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2022-11-18 20:55:09,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 499. [2022-11-18 20:55:09,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 499 states, 311 states have (on average 1.459807073954984) internal successors, (454), 352 states have internal predecessors, (454), 134 states have call successors, (134), 24 states have call predecessors, (134), 23 states have return successors, (134), 134 states have call predecessors, (134), 134 states have call successors, (134) [2022-11-18 20:55:09,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 722 transitions. [2022-11-18 20:55:09,141 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 722 transitions. Word has length 107 [2022-11-18 20:55:09,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:55:09,141 INFO L495 AbstractCegarLoop]: Abstraction has 499 states and 722 transitions. [2022-11-18 20:55:09,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.5416666666666665) internal successors, (85), 17 states have internal predecessors, (85), 7 states have call successors, (18), 8 states have call predecessors, (18), 4 states have return successors, (11), 7 states have call predecessors, (11), 5 states have call successors, (11) [2022-11-18 20:55:09,142 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 722 transitions. [2022-11-18 20:55:09,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-18 20:55:09,142 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:55:09,143 INFO L195 NwaCegarLoop]: trace histogram [20, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:55:09,171 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 (35)] Forceful destruction successful, exit code 0 [2022-11-18 20:55:09,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 20:55:09,362 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting DUPFFexgcdErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [DUPFFnewErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 52 more)] === [2022-11-18 20:55:09,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:55:09,363 INFO L85 PathProgramCache]: Analyzing trace with hash -1221664532, now seen corresponding path program 1 times [2022-11-18 20:55:09,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:55:09,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1250784195] [2022-11-18 20:55:09,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:55:09,364 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 20:55:09,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:55:09,364 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 20:55:09,366 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 (36)] Waiting until timeout for monitored process [2022-11-18 20:55:10,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:10,317 INFO L263 TraceCheckSpWp]: Trace formula consists of 746 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-18 20:55:10,319 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:55:11,231 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 131 proven. 4 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2022-11-18 20:55:11,231 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:55:12,424 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2022-11-18 20:55:12,534 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 131 proven. 4 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2022-11-18 20:55:12,534 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:55:12,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1250784195] [2022-11-18 20:55:12,534 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1250784195] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:55:12,534 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 20:55:12,534 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 20 [2022-11-18 20:55:12,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400439640] [2022-11-18 20:55:12,535 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 20:55:12,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-18 20:55:12,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:55:12,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-18 20:55:12,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=361, Unknown=0, NotChecked=0, Total=420 [2022-11-18 20:55:12,536 INFO L87 Difference]: Start difference. First operand 499 states and 722 transitions. Second operand has 21 states, 20 states have (on average 4.55) internal successors, (91), 15 states have internal predecessors, (91), 7 states have call successors, (18), 6 states have call predecessors, (18), 4 states have return successors, (15), 7 states have call predecessors, (15), 5 states have call successors, (15) [2022-11-18 20:55:15,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:55:15,207 INFO L93 Difference]: Finished difference Result 524 states and 757 transitions. [2022-11-18 20:55:15,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-18 20:55:15,208 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 4.55) internal successors, (91), 15 states have internal predecessors, (91), 7 states have call successors, (18), 6 states have call predecessors, (18), 4 states have return successors, (15), 7 states have call predecessors, (15), 5 states have call successors, (15) Word has length 113 [2022-11-18 20:55:15,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:55:15,210 INFO L225 Difference]: With dead ends: 524 [2022-11-18 20:55:15,210 INFO L226 Difference]: Without dead ends: 524 [2022-11-18 20:55:15,210 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 194 SyntacticMatches, 11 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=82, Invalid=470, Unknown=0, NotChecked=0, Total=552 [2022-11-18 20:55:15,210 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 79 mSDsluCounter, 1442 mSDsCounter, 0 mSdLazyCounter, 562 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 1628 SdHoareTripleChecker+Invalid, 639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 562 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 73 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-18 20:55:15,211 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 1628 Invalid, 639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 562 Invalid, 0 Unknown, 73 Unchecked, 2.5s Time] [2022-11-18 20:55:15,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2022-11-18 20:55:15,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 509. [2022-11-18 20:55:15,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 319 states have (on average 1.4420062695924765) internal successors, (460), 360 states have internal predecessors, (460), 134 states have call successors, (134), 26 states have call predecessors, (134), 25 states have return successors, (134), 134 states have call predecessors, (134), 134 states have call successors, (134) [2022-11-18 20:55:15,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 728 transitions. [2022-11-18 20:55:15,225 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 728 transitions. Word has length 113 [2022-11-18 20:55:15,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:55:15,226 INFO L495 AbstractCegarLoop]: Abstraction has 509 states and 728 transitions. [2022-11-18 20:55:15,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 4.55) internal successors, (91), 15 states have internal predecessors, (91), 7 states have call successors, (18), 6 states have call predecessors, (18), 4 states have return successors, (15), 7 states have call predecessors, (15), 5 states have call successors, (15) [2022-11-18 20:55:15,226 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 728 transitions. [2022-11-18 20:55:15,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-18 20:55:15,227 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:55:15,227 INFO L195 NwaCegarLoop]: trace histogram [20, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:55:15,247 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 (36)] Forceful destruction successful, exit code 0 [2022-11-18 20:55:15,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 20:55:15,447 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting DUPFFexgcdErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [DUPFFnewErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 52 more)] === [2022-11-18 20:55:15,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:55:15,447 INFO L85 PathProgramCache]: Analyzing trace with hash 783105185, now seen corresponding path program 1 times [2022-11-18 20:55:15,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:55:15,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [82492604] [2022-11-18 20:55:15,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:55:15,448 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 20:55:15,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:55:15,449 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 20:55:15,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 (37)] Waiting until timeout for monitored process [2022-11-18 20:55:16,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:16,955 INFO L263 TraceCheckSpWp]: Trace formula consists of 752 conjuncts, 56 conjunts are in the unsatisfiable core [2022-11-18 20:55:16,961 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:55:16,965 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 20:55:17,014 INFO L321 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2022-11-18 20:55:17,015 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 20:55:17,053 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-18 20:55:17,257 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-18 20:55:17,257 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 37 [2022-11-18 20:55:17,294 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-18 20:55:17,294 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 37 [2022-11-18 20:55:17,331 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-18 20:55:17,331 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 37 [2022-11-18 20:55:17,365 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-18 20:55:17,365 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 37 [2022-11-18 20:55:17,412 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-18 20:55:17,413 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 37 [2022-11-18 20:55:17,467 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-18 20:55:17,468 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 37 [2022-11-18 20:55:17,515 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-18 20:55:17,515 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 37 [2022-11-18 20:55:17,580 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-18 20:55:17,580 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 37 [2022-11-18 20:55:17,628 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-18 20:55:17,628 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 37 [2022-11-18 20:55:17,676 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-18 20:55:17,676 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 37 [2022-11-18 20:55:17,725 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-18 20:55:17,725 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 37 [2022-11-18 20:55:17,773 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-18 20:55:17,773 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 37 [2022-11-18 20:55:17,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:55:17,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:55:17,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:55:17,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:55:17,844 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 55 [2022-11-18 20:55:17,878 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 57 [2022-11-18 20:55:18,192 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-18 20:55:18,192 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 33 [2022-11-18 20:55:18,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:55:18,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:55:18,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:55:18,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:55:18,241 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 55 [2022-11-18 20:55:19,910 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2022-11-18 20:55:20,003 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 131 proven. 16 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2022-11-18 20:55:20,003 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:55:22,699 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_7429 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (select |c_#valid| (let ((.cse0 (bvadd |c_ULTIMATE.start_main_~g~0#1.offset| (_ bv8 32)))) (select (select (store |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~g~0#1.base|) .cse0) v_ArrVal_7429) |c_ULTIMATE.start_main_~g~0#1.base|) .cse0))) (_ bv1 1)))) is different from false [2022-11-18 20:55:22,713 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_7429 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (select |c_#valid| (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_#t~ret67#1.offset|))) (select (select (store |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~ret67#1.base|) .cse0) v_ArrVal_7429) |c_ULTIMATE.start_main_#t~ret67#1.base|) .cse0))) (_ bv1 1)))) is different from false [2022-11-18 20:55:28,164 WARN L233 SmtUtils]: Spent 5.45s on a formula simplification that was a NOOP. DAG size: 135 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-18 20:55:28,992 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_7429 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (select |c_#valid| (let ((.cse0 (bvadd (_ bv8 32) |c_DUPFFnew_#res#1.offset|))) (select (select (store |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| |c_DUPFFnew_#res#1.base|) .cse0) v_ArrVal_7429) |c_DUPFFnew_#res#1.base|) .cse0))) (_ bv1 1)))) is different from false [2022-11-18 20:55:29,013 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_7429 (Array (_ BitVec 32) (_ BitVec 32)))) (= (bvadd (select |c_#valid| (let ((.cse0 (bvadd (_ bv8 32) |c_DUPFFnew_~ans~0#1.offset|))) (select (select (store |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| |c_DUPFFnew_~ans~0#1.base|) .cse0) v_ArrVal_7429) |c_DUPFFnew_~ans~0#1.base|) .cse0))) (_ bv1 1)) (_ bv0 1))) is different from false [2022-11-18 20:55:31,202 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_7426 (_ BitVec 32)) (v_ArrVal_7425 (_ BitVec 32)) (v_ArrVal_7422 (_ BitVec 32)) (v_ArrVal_7421 (_ BitVec 32)) (v_ArrVal_7420 (_ BitVec 32)) (v_ArrVal_7429 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7419 (_ BitVec 32)) (v_ArrVal_7428 (_ BitVec 32)) (v_ArrVal_7427 (_ BitVec 32))) (= (_ bv0 1) (bvadd (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_DUPFFnew_~ans~0#1.offset|))) (select (select (let ((.cse0 (select |c_#memory_$Pointer$.base| |c_DUPFFnew_~ans~0#1.base|))) (store (store |c_#memory_$Pointer$.base| |c_DUPFFnew_~ans~0#1.base| (store (store (store (store (store (store (store (store .cse0 |c_DUPFFnew_~ans~0#1.offset| v_ArrVal_7422) (bvadd |c_DUPFFnew_~ans~0#1.offset| (_ bv1 32)) v_ArrVal_7421) (bvadd (_ bv2 32) |c_DUPFFnew_~ans~0#1.offset|) v_ArrVal_7420) (bvadd (_ bv3 32) |c_DUPFFnew_~ans~0#1.offset|) v_ArrVal_7419) (bvadd (_ bv4 32) |c_DUPFFnew_~ans~0#1.offset|) v_ArrVal_7426) (bvadd |c_DUPFFnew_~ans~0#1.offset| (_ bv5 32)) v_ArrVal_7425) (bvadd (_ bv6 32) |c_DUPFFnew_~ans~0#1.offset|) v_ArrVal_7428) (bvadd (_ bv7 32) |c_DUPFFnew_~ans~0#1.offset|) v_ArrVal_7427)) (select .cse0 .cse1) v_ArrVal_7429)) |c_DUPFFnew_~ans~0#1.base|) .cse1))) (_ bv1 1)))) is different from false [2022-11-18 20:55:31,861 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_7426 (_ BitVec 32)) (v_ArrVal_7425 (_ BitVec 32)) (v_ArrVal_7422 (_ BitVec 32)) (v_ArrVal_7421 (_ BitVec 32)) (v_ArrVal_7418 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7420 (_ BitVec 32)) (v_ArrVal_7429 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7419 (_ BitVec 32)) (v_ArrVal_7428 (_ BitVec 32)) (v_ArrVal_7427 (_ BitVec 32))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse2 (bvadd (_ bv8 32) |c_DUPFFnew_~ans~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$.base| |c_DUPFFnew_#t~mem34#1.base| v_ArrVal_7418))) (let ((.cse1 (select .cse0 |c_DUPFFnew_~ans~0#1.base|))) (store (store .cse0 |c_DUPFFnew_~ans~0#1.base| (store (store (store (store (store (store (store (store .cse1 |c_DUPFFnew_~ans~0#1.offset| v_ArrVal_7422) (bvadd |c_DUPFFnew_~ans~0#1.offset| (_ bv1 32)) v_ArrVal_7421) (bvadd (_ bv2 32) |c_DUPFFnew_~ans~0#1.offset|) v_ArrVal_7420) (bvadd (_ bv3 32) |c_DUPFFnew_~ans~0#1.offset|) v_ArrVal_7419) (bvadd (_ bv4 32) |c_DUPFFnew_~ans~0#1.offset|) v_ArrVal_7426) (bvadd |c_DUPFFnew_~ans~0#1.offset| (_ bv5 32)) v_ArrVal_7425) (bvadd (_ bv6 32) |c_DUPFFnew_~ans~0#1.offset|) v_ArrVal_7428) (bvadd (_ bv7 32) |c_DUPFFnew_~ans~0#1.offset|) v_ArrVal_7427)) (select .cse1 .cse2) v_ArrVal_7429))) |c_DUPFFnew_~ans~0#1.base|) .cse2)))))) is different from false [2022-11-18 20:55:31,904 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_7426 (_ BitVec 32)) (v_ArrVal_7425 (_ BitVec 32)) (v_ArrVal_7422 (_ BitVec 32)) (v_ArrVal_7421 (_ BitVec 32)) (v_ArrVal_7418 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7420 (_ BitVec 32)) (v_ArrVal_7429 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7419 (_ BitVec 32)) (v_ArrVal_7428 (_ BitVec 32)) (v_ArrVal_7427 (_ BitVec 32))) (= (bvadd (select |c_#valid| (let ((.cse2 (bvadd (_ bv8 32) |c_DUPFFnew_~ans~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| |c_DUPFFnew_~ans~0#1.base|) .cse2) v_ArrVal_7418))) (let ((.cse1 (select .cse0 |c_DUPFFnew_~ans~0#1.base|))) (store (store .cse0 |c_DUPFFnew_~ans~0#1.base| (store (store (store (store (store (store (store (store .cse1 |c_DUPFFnew_~ans~0#1.offset| v_ArrVal_7422) (bvadd |c_DUPFFnew_~ans~0#1.offset| (_ bv1 32)) v_ArrVal_7421) (bvadd (_ bv2 32) |c_DUPFFnew_~ans~0#1.offset|) v_ArrVal_7420) (bvadd (_ bv3 32) |c_DUPFFnew_~ans~0#1.offset|) v_ArrVal_7419) (bvadd (_ bv4 32) |c_DUPFFnew_~ans~0#1.offset|) v_ArrVal_7426) (bvadd |c_DUPFFnew_~ans~0#1.offset| (_ bv5 32)) v_ArrVal_7425) (bvadd (_ bv6 32) |c_DUPFFnew_~ans~0#1.offset|) v_ArrVal_7428) (bvadd (_ bv7 32) |c_DUPFFnew_~ans~0#1.offset|) v_ArrVal_7427)) (select .cse1 .cse2) v_ArrVal_7429))) |c_DUPFFnew_~ans~0#1.base|) .cse2))) (_ bv1 1)) (_ bv0 1))) is different from false [2022-11-18 20:55:31,954 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 20:55:31,955 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 104 treesize of output 85 [2022-11-18 20:55:31,963 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 82 [2022-11-18 20:55:31,973 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 32 [2022-11-18 20:55:31,978 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 58 [2022-11-18 20:55:34,408 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 131 proven. 4 refuted. 0 times theorem prover too weak. 178 trivial. 12 not checked. [2022-11-18 20:55:34,408 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:55:34,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [82492604] [2022-11-18 20:55:34,409 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [82492604] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:55:34,409 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 20:55:34,409 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 19] total 34 [2022-11-18 20:55:34,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668670534] [2022-11-18 20:55:34,409 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 20:55:34,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-11-18 20:55:34,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:55:34,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-11-18 20:55:34,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=671, Unknown=10, NotChecked=406, Total=1190 [2022-11-18 20:55:34,411 INFO L87 Difference]: Start difference. First operand 509 states and 728 transitions. Second operand has 35 states, 34 states have (on average 2.7941176470588234) internal successors, (95), 29 states have internal predecessors, (95), 7 states have call successors, (18), 6 states have call predecessors, (18), 4 states have return successors, (15), 7 states have call predecessors, (15), 5 states have call successors, (15) [2022-11-18 20:55:39,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:55:39,246 INFO L93 Difference]: Finished difference Result 523 states and 755 transitions. [2022-11-18 20:55:39,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-18 20:55:39,247 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 34 states have (on average 2.7941176470588234) internal successors, (95), 29 states have internal predecessors, (95), 7 states have call successors, (18), 6 states have call predecessors, (18), 4 states have return successors, (15), 7 states have call predecessors, (15), 5 states have call successors, (15) Word has length 114 [2022-11-18 20:55:39,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:55:39,250 INFO L225 Difference]: With dead ends: 523 [2022-11-18 20:55:39,250 INFO L226 Difference]: Without dead ends: 523 [2022-11-18 20:55:39,251 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 183 SyntacticMatches, 19 SemanticMatches, 40 ConstructedPredicates, 7 IntricatePredicates, 0 DeprecatedPredicates, 359 ImplicationChecksByTransitivity, 9.5s TimeCoverageRelationStatistics Valid=160, Invalid=1048, Unknown=10, NotChecked=504, Total=1722 [2022-11-18 20:55:39,252 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 150 mSDsluCounter, 2668 mSDsCounter, 0 mSdLazyCounter, 1080 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 2875 SdHoareTripleChecker+Invalid, 2594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1080 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1502 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-11-18 20:55:39,252 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 2875 Invalid, 2594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1080 Invalid, 0 Unknown, 1502 Unchecked, 3.7s Time] [2022-11-18 20:55:39,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2022-11-18 20:55:39,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 509. [2022-11-18 20:55:39,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 319 states have (on average 1.4357366771159874) internal successors, (458), 360 states have internal predecessors, (458), 134 states have call successors, (134), 26 states have call predecessors, (134), 25 states have return successors, (134), 134 states have call predecessors, (134), 134 states have call successors, (134) [2022-11-18 20:55:39,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 726 transitions. [2022-11-18 20:55:39,270 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 726 transitions. Word has length 114 [2022-11-18 20:55:39,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:55:39,271 INFO L495 AbstractCegarLoop]: Abstraction has 509 states and 726 transitions. [2022-11-18 20:55:39,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 34 states have (on average 2.7941176470588234) internal successors, (95), 29 states have internal predecessors, (95), 7 states have call successors, (18), 6 states have call predecessors, (18), 4 states have return successors, (15), 7 states have call predecessors, (15), 5 states have call successors, (15) [2022-11-18 20:55:39,272 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 726 transitions. [2022-11-18 20:55:39,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-18 20:55:39,273 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:55:39,273 INFO L195 NwaCegarLoop]: trace histogram [20, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:55:39,305 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 (37)] Ended with exit code 0 [2022-11-18 20:55:39,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 20:55:39,487 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting DUPFFexgcdErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [DUPFFnewErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 52 more)] === [2022-11-18 20:55:39,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:55:39,488 INFO L85 PathProgramCache]: Analyzing trace with hash 783105186, now seen corresponding path program 1 times [2022-11-18 20:55:39,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:55:39,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [237340016] [2022-11-18 20:55:39,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:55:39,489 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 20:55:39,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:55:39,491 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 20:55:39,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 (38)] Waiting until timeout for monitored process [2022-11-18 20:55:41,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:41,179 INFO L263 TraceCheckSpWp]: Trace formula consists of 752 conjuncts, 86 conjunts are in the unsatisfiable core [2022-11-18 20:55:41,190 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:55:41,201 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 20:55:41,255 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-11-18 20:55:41,255 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2022-11-18 20:55:41,269 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-11-18 20:55:41,332 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-18 20:55:41,347 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-18 20:55:41,759 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-18 20:55:41,760 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 39 [2022-11-18 20:55:41,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:55:41,793 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-11-18 20:55:41,844 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-18 20:55:41,844 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-11-18 20:55:41,857 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-18 20:55:41,891 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-18 20:55:41,891 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 39 [2022-11-18 20:55:41,980 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-18 20:55:41,980 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 39 [2022-11-18 20:55:42,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:55:42,018 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-11-18 20:55:42,056 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-18 20:55:42,059 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 39 [2022-11-18 20:55:42,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:55:42,099 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-11-18 20:55:42,140 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-18 20:55:42,140 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 39 [2022-11-18 20:55:42,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:55:42,170 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-11-18 20:55:42,212 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-18 20:55:42,213 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 39 [2022-11-18 20:55:42,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:55:42,243 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-11-18 20:55:42,305 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-18 20:55:42,306 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-11-18 20:55:42,318 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-18 20:55:42,355 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-18 20:55:42,356 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 39 [2022-11-18 20:55:42,452 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-18 20:55:42,452 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 39 [2022-11-18 20:55:42,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:55:42,489 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-11-18 20:55:42,543 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-18 20:55:42,543 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-11-18 20:55:42,550 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-18 20:55:42,594 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-18 20:55:42,594 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 39 [2022-11-18 20:55:42,694 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-18 20:55:42,694 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-11-18 20:55:42,703 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-18 20:55:42,738 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-18 20:55:42,739 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 39 [2022-11-18 20:55:42,830 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-18 20:55:42,831 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 39 [2022-11-18 20:55:42,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:55:42,861 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-11-18 20:55:42,906 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-18 20:55:42,906 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 49 [2022-11-18 20:55:42,926 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 24 [2022-11-18 20:55:43,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:55:43,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:55:43,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:55:43,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:55:43,014 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 57 [2022-11-18 20:55:43,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:55:43,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:55:43,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:55:43,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:55:43,056 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 47 [2022-11-18 20:55:43,080 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 49 [2022-11-18 20:55:43,091 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 59 [2022-11-18 20:55:43,525 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-18 20:55:43,525 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 41 [2022-11-18 20:55:43,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:55:43,538 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 22 [2022-11-18 20:55:43,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:55:43,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:55:43,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:55:43,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:55:43,587 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 53 [2022-11-18 20:55:43,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:55:43,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:55:43,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:55:43,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:55:43,615 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 47 [2022-11-18 20:55:45,772 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-18 20:55:45,776 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2022-11-18 20:55:45,853 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 131 proven. 16 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2022-11-18 20:55:45,853 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:55:47,398 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd |c_ULTIMATE.start_main_~g~0#1.offset| (_ bv8 32)))) (and (forall ((v_ArrVal_7806 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem68#1.base| v_ArrVal_7806) |c_ULTIMATE.start_main_~g~0#1.base|) .cse1))) (bvule .cse0 (bvadd .cse0 (_ bv4 32))))) (forall ((v_ArrVal_7807 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7806 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem68#1.base| v_ArrVal_7806) |c_ULTIMATE.start_main_~g~0#1.base|) .cse1) (_ bv4 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem68#1.base| v_ArrVal_7807) |c_ULTIMATE.start_main_~g~0#1.base|) .cse1)))))) is different from false [2022-11-18 20:55:47,442 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd |c_ULTIMATE.start_main_~g~0#1.offset| (_ bv8 32)))) (let ((.cse1 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~g~0#1.base|) .cse2))) (and (forall ((v_ArrVal_7806 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$.offset| .cse1 v_ArrVal_7806) |c_ULTIMATE.start_main_~g~0#1.base|) .cse2))) (bvule .cse0 (bvadd (_ bv4 32) .cse0)))) (forall ((v_ArrVal_7807 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7806 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv4 32) (select (select (store |c_#memory_$Pointer$.offset| .cse1 v_ArrVal_7806) |c_ULTIMATE.start_main_~g~0#1.base|) .cse2)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| .cse1 v_ArrVal_7807) |c_ULTIMATE.start_main_~g~0#1.base|) .cse2))))))) is different from false [2022-11-18 20:55:47,481 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_#t~ret67#1.offset|))) (let ((.cse1 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~ret67#1.base|) .cse2))) (and (forall ((v_ArrVal_7806 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$.offset| .cse1 v_ArrVal_7806) |c_ULTIMATE.start_main_#t~ret67#1.base|) .cse2))) (bvule .cse0 (bvadd (_ bv4 32) .cse0)))) (forall ((v_ArrVal_7807 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7806 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv4 32) (select (select (store |c_#memory_$Pointer$.offset| .cse1 v_ArrVal_7806) |c_ULTIMATE.start_main_#t~ret67#1.base|) .cse2)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| .cse1 v_ArrVal_7807) |c_ULTIMATE.start_main_#t~ret67#1.base|) .cse2))))))) is different from false [2022-11-18 20:57:16,724 WARN L233 SmtUtils]: Spent 1.49m on a formula simplification that was a NOOP. DAG size: 228 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-18 20:57:46,514 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 20:57:46,514 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 165 treesize of output 156 [2022-11-18 20:57:46,534 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 478 treesize of output 466 [2022-11-18 20:57:46,581 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 20:57:46,582 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 462 treesize of output 312 [2022-11-18 20:57:46,604 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 564 treesize of output 462 [2022-11-18 20:57:46,628 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 422 treesize of output 390 [2022-11-18 20:57:46,650 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 390 treesize of output 358 [2022-11-18 20:57:46,672 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 358 treesize of output 294 [2022-11-18 20:57:46,708 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 154 treesize of output 138 [2022-11-18 20:58:13,037 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 20:58:13,038 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 163 treesize of output 134 [2022-11-18 20:58:13,071 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 172 treesize of output 154 [2022-11-18 20:58:13,130 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 20:58:13,130 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 150 treesize of output 120 [2022-11-18 20:58:13,164 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 176 treesize of output 146 [2022-11-18 20:58:13,184 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 90 [2022-11-18 20:58:13,203 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 74 [2022-11-18 20:58:13,227 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 32 [2022-11-18 20:58:15,693 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 131 proven. 16 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2022-11-18 20:58:15,693 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:58:15,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [237340016] [2022-11-18 20:58:15,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [237340016] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:58:15,693 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 20:58:15,693 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 18] total 33 [2022-11-18 20:58:15,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413645443] [2022-11-18 20:58:15,694 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 20:58:15,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-18 20:58:15,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:58:15,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-18 20:58:15,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=829, Unknown=14, NotChecked=180, Total=1122 [2022-11-18 20:58:15,696 INFO L87 Difference]: Start difference. First operand 509 states and 726 transitions. Second operand has 34 states, 33 states have (on average 2.878787878787879) internal successors, (95), 28 states have internal predecessors, (95), 7 states have call successors, (18), 6 states have call predecessors, (18), 4 states have return successors, (15), 7 states have call predecessors, (15), 5 states have call successors, (15) [2022-11-18 20:58:29,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:58:29,201 INFO L93 Difference]: Finished difference Result 522 states and 753 transitions. [2022-11-18 20:58:29,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-18 20:58:29,203 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 2.878787878787879) internal successors, (95), 28 states have internal predecessors, (95), 7 states have call successors, (18), 6 states have call predecessors, (18), 4 states have return successors, (15), 7 states have call predecessors, (15), 5 states have call successors, (15) Word has length 114 [2022-11-18 20:58:29,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:58:29,205 INFO L225 Difference]: With dead ends: 522 [2022-11-18 20:58:29,205 INFO L226 Difference]: Without dead ends: 522 [2022-11-18 20:58:29,205 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 180 SyntacticMatches, 19 SemanticMatches, 40 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 362 ImplicationChecksByTransitivity, 27.4s TimeCoverageRelationStatistics Valid=157, Invalid=1323, Unknown=14, NotChecked=228, Total=1722 [2022-11-18 20:58:29,206 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 129 mSDsluCounter, 2526 mSDsCounter, 0 mSdLazyCounter, 979 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 2719 SdHoareTripleChecker+Invalid, 2149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 979 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1158 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2022-11-18 20:58:29,206 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 2719 Invalid, 2149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 979 Invalid, 0 Unknown, 1158 Unchecked, 10.4s Time] [2022-11-18 20:58:29,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2022-11-18 20:58:29,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 509. [2022-11-18 20:58:29,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 319 states have (on average 1.4294670846394983) internal successors, (456), 360 states have internal predecessors, (456), 134 states have call successors, (134), 26 states have call predecessors, (134), 25 states have return successors, (134), 134 states have call predecessors, (134), 134 states have call successors, (134) [2022-11-18 20:58:29,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 724 transitions. [2022-11-18 20:58:29,219 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 724 transitions. Word has length 114 [2022-11-18 20:58:29,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:58:29,220 INFO L495 AbstractCegarLoop]: Abstraction has 509 states and 724 transitions. [2022-11-18 20:58:29,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 2.878787878787879) internal successors, (95), 28 states have internal predecessors, (95), 7 states have call successors, (18), 6 states have call predecessors, (18), 4 states have return successors, (15), 7 states have call predecessors, (15), 5 states have call successors, (15) [2022-11-18 20:58:29,220 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 724 transitions. [2022-11-18 20:58:29,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-11-18 20:58:29,221 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:58:29,222 INFO L195 NwaCegarLoop]: trace histogram [20, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:58:29,249 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 (38)] Forceful destruction successful, exit code 0 [2022-11-18 20:58:29,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 20:58:29,444 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [DUPFFnewErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, DUPFFnewErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 52 more)] === [2022-11-18 20:58:29,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:58:29,444 INFO L85 PathProgramCache]: Analyzing trace with hash 1590709928, now seen corresponding path program 1 times [2022-11-18 20:58:29,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:58:29,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1399879426] [2022-11-18 20:58:29,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:58:29,445 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 20:58:29,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:58:29,446 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 20:58:29,447 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 (39)] Waiting until timeout for monitored process [2022-11-18 20:58:31,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:58:31,348 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:58:32,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:58:32,778 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-11-18 20:58:32,778 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 20:58:32,780 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK (54 of 55 remaining) [2022-11-18 20:58:32,781 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location DUPFFnewErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (53 of 55 remaining) [2022-11-18 20:58:32,782 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location DUPFFnewErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (52 of 55 remaining) [2022-11-18 20:58:32,782 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location DUPFFnewErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (51 of 55 remaining) [2022-11-18 20:58:32,782 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location DUPFFnewErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (50 of 55 remaining) [2022-11-18 20:58:32,782 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location DUPFFnewErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (49 of 55 remaining) [2022-11-18 20:58:32,783 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location DUPFFnewErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (48 of 55 remaining) [2022-11-18 20:58:32,783 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location DUPFFnewErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE (47 of 55 remaining) [2022-11-18 20:58:32,783 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location DUPFFnewErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE (46 of 55 remaining) [2022-11-18 20:58:32,783 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location DUPFFnewErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (45 of 55 remaining) [2022-11-18 20:58:32,783 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location DUPFFnewErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (44 of 55 remaining) [2022-11-18 20:58:32,783 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location DUPFFnewErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (43 of 55 remaining) [2022-11-18 20:58:32,784 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location DUPFFnewErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (42 of 55 remaining) [2022-11-18 20:58:32,784 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location DUPFFdegErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (41 of 55 remaining) [2022-11-18 20:58:32,784 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location DUPFFdegErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (40 of 55 remaining) [2022-11-18 20:58:32,784 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location DUPFFexgcdErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (39 of 55 remaining) [2022-11-18 20:58:32,784 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location DUPFFexgcdErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (38 of 55 remaining) [2022-11-18 20:58:32,784 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location DUPFFexgcdErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (37 of 55 remaining) [2022-11-18 20:58:32,785 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location DUPFFexgcdErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (36 of 55 remaining) [2022-11-18 20:58:32,785 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location DUPFFexgcdErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (35 of 55 remaining) [2022-11-18 20:58:32,785 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location DUPFFexgcdErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (34 of 55 remaining) [2022-11-18 20:58:32,785 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location DUPFFexgcdErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (33 of 55 remaining) [2022-11-18 20:58:32,785 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location DUPFFexgcdErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (32 of 55 remaining) [2022-11-18 20:58:32,785 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location DUPFFexgcdErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (31 of 55 remaining) [2022-11-18 20:58:32,786 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location DUPFFexgcdErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (30 of 55 remaining) [2022-11-18 20:58:32,786 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location DUPFFexgcdErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (29 of 55 remaining) [2022-11-18 20:58:32,786 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location DUPFFexgcdErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (28 of 55 remaining) [2022-11-18 20:58:32,786 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location DUPFFexgcdErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (27 of 55 remaining) [2022-11-18 20:58:32,786 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location DUPFFexgcdErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (26 of 55 remaining) [2022-11-18 20:58:32,786 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location DUPFFexgcdErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (25 of 55 remaining) [2022-11-18 20:58:32,787 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location DUPFFexgcdErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (24 of 55 remaining) [2022-11-18 20:58:32,787 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location DUPFFexgcdErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (23 of 55 remaining) [2022-11-18 20:58:32,787 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location DUPFFexgcdErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (22 of 55 remaining) [2022-11-18 20:58:32,787 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location DUPFFexgcdErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (21 of 55 remaining) [2022-11-18 20:58:32,787 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location DUPFFexgcdErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (20 of 55 remaining) [2022-11-18 20:58:32,788 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location DUPFFexgcdErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 55 remaining) [2022-11-18 20:58:32,788 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location DUPFFexgcdErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 55 remaining) [2022-11-18 20:58:32,788 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location DUPFFexgcdErr22REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 55 remaining) [2022-11-18 20:58:32,788 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location DUPFFexgcdErr23REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 55 remaining) [2022-11-18 20:58:32,788 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location DUPFFexgcdErr24REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 55 remaining) [2022-11-18 20:58:32,788 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location DUPFFexgcdErr25REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 55 remaining) [2022-11-18 20:58:32,789 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location DUPFFexgcdErr26REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 55 remaining) [2022-11-18 20:58:32,789 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location DUPFFexgcdErr27REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 55 remaining) [2022-11-18 20:58:32,789 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 55 remaining) [2022-11-18 20:58:32,789 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 55 remaining) [2022-11-18 20:58:32,789 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 55 remaining) [2022-11-18 20:58:32,789 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 55 remaining) [2022-11-18 20:58:32,790 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 55 remaining) [2022-11-18 20:58:32,790 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 55 remaining) [2022-11-18 20:58:32,790 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 55 remaining) [2022-11-18 20:58:32,790 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 55 remaining) [2022-11-18 20:58:32,790 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 55 remaining) [2022-11-18 20:58:32,791 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 55 remaining) [2022-11-18 20:58:32,791 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 55 remaining) [2022-11-18 20:58:32,791 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 55 remaining) [2022-11-18 20:58:32,821 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 (39)] Forceful destruction successful, exit code 0 [2022-11-18 20:58:33,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/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 20:58:33,018 INFO L444 BasicCegarLoop]: Path program histogram: [4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:58:33,022 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 20:58:33,034 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-18 20:58:33,035 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-18 20:58:33,036 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-18 20:58:33,036 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-18 20:58:33,036 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-18 20:58:33,037 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-18 20:58:33,037 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-18 20:58:33,037 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-18 20:58:33,037 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-18 20:58:33,038 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-18 20:58:33,038 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-18 20:58:33,038 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-18 20:58:33,038 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-18 20:58:33,039 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-18 20:58:33,039 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-18 20:58:33,039 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-18 20:58:33,039 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-18 20:58:33,040 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-18 20:58:33,040 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-18 20:58:33,040 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-18 20:58:33,040 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-18 20:58:33,041 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-18 20:58:33,041 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-18 20:58:33,041 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-18 20:58:33,041 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-18 20:58:33,042 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-18 20:58:33,042 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-18 20:58:33,042 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-18 20:58:33,042 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-18 20:58:33,042 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-18 20:58:33,043 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-18 20:58:33,043 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-18 20:58:33,043 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-18 20:58:33,043 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-18 20:58:33,043 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-18 20:58:33,044 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-18 20:58:33,044 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-18 20:58:33,044 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-18 20:58:33,044 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-18 20:58:33,044 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-18 20:58:33,045 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-18 20:58:33,045 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-18 20:58:33,045 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-18 20:58:33,045 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-18 20:58:33,047 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-18 20:58:33,047 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-18 20:58:33,047 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-18 20:58:33,048 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-18 20:58:33,048 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-18 20:58:33,048 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-18 20:58:33,048 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-18 20:58:33,048 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-18 20:58:33,049 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-18 20:58:33,049 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-18 20:58:33,049 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-18 20:58:33,049 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-18 20:58:33,050 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-18 20:58:33,050 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-18 20:58:33,050 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-18 20:58:33,050 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-18 20:58:33,051 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-18 20:58:33,051 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-18 20:58:33,051 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-18 20:58:33,051 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-18 20:58:33,052 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-18 20:58:33,052 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-18 20:58:33,052 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-18 20:58:33,052 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-18 20:58:33,053 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-18 20:58:33,053 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-18 20:58:33,053 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-18 20:58:33,053 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-18 20:58:33,054 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-18 20:58:33,054 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-18 20:58:33,054 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-18 20:58:33,054 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-18 20:58:33,054 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-18 20:58:33,055 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-18 20:58:33,055 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-18 20:58:33,055 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-18 20:58:33,055 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-18 20:58:33,055 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-18 20:58:33,056 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-18 20:58:33,056 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-18 20:58:33,056 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-18 20:58:33,056 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-18 20:58:33,056 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-18 20:58:33,057 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-18 20:58:33,057 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-18 20:58:33,057 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-18 20:58:33,057 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-18 20:58:33,057 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-18 20:58:33,058 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-18 20:58:33,058 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-18 20:58:33,058 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-18 20:58:33,058 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-18 20:58:33,125 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 08:58:33 BoogieIcfgContainer [2022-11-18 20:58:33,125 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 20:58:33,126 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 20:58:33,126 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 20:58:33,126 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 20:58:33,126 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:50:02" (3/4) ... [2022-11-18 20:58:33,138 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-18 20:58:33,138 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 20:58:33,138 INFO L158 Benchmark]: Toolchain (without parser) took 513415.96ms. Allocated memory was 60.8MB in the beginning and 157.3MB in the end (delta: 96.5MB). Free memory was 37.8MB in the beginning and 98.1MB in the end (delta: -60.3MB). Peak memory consumption was 36.2MB. Max. memory is 16.1GB. [2022-11-18 20:58:33,139 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 60.8MB. Free memory is still 43.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:58:33,139 INFO L158 Benchmark]: CACSL2BoogieTranslator took 939.94ms. Allocated memory was 60.8MB in the beginning and 81.8MB in the end (delta: 21.0MB). Free memory was 37.6MB in the beginning and 53.7MB in the end (delta: -16.1MB). Peak memory consumption was 17.6MB. Max. memory is 16.1GB. [2022-11-18 20:58:33,139 INFO L158 Benchmark]: Boogie Procedure Inliner took 95.62ms. Allocated memory is still 81.8MB. Free memory was 53.7MB in the beginning and 51.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:58:33,140 INFO L158 Benchmark]: Boogie Preprocessor took 84.15ms. Allocated memory is still 81.8MB. Free memory was 51.2MB in the beginning and 48.6MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:58:33,141 INFO L158 Benchmark]: RCFGBuilder took 1401.57ms. Allocated memory is still 81.8MB. Free memory was 48.6MB in the beginning and 53.1MB in the end (delta: -4.6MB). Peak memory consumption was 18.8MB. Max. memory is 16.1GB. [2022-11-18 20:58:33,141 INFO L158 Benchmark]: TraceAbstraction took 510872.22ms. Allocated memory was 81.8MB in the beginning and 157.3MB in the end (delta: 75.5MB). Free memory was 52.8MB in the beginning and 99.1MB in the end (delta: -46.3MB). Peak memory consumption was 104.7MB. Max. memory is 16.1GB. [2022-11-18 20:58:33,141 INFO L158 Benchmark]: Witness Printer took 12.30ms. Allocated memory is still 157.3MB. Free memory was 99.1MB in the beginning and 98.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:58:33,142 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 60.8MB. Free memory is still 43.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 939.94ms. Allocated memory was 60.8MB in the beginning and 81.8MB in the end (delta: 21.0MB). Free memory was 37.6MB in the beginning and 53.7MB in the end (delta: -16.1MB). Peak memory consumption was 17.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 95.62ms. Allocated memory is still 81.8MB. Free memory was 53.7MB in the beginning and 51.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 84.15ms. Allocated memory is still 81.8MB. Free memory was 51.2MB in the beginning and 48.6MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1401.57ms. Allocated memory is still 81.8MB. Free memory was 48.6MB in the beginning and 53.1MB in the end (delta: -4.6MB). Peak memory consumption was 18.8MB. Max. memory is 16.1GB. * TraceAbstraction took 510872.22ms. Allocated memory was 81.8MB in the beginning and 157.3MB in the end (delta: 75.5MB). Free memory was 52.8MB in the beginning and 99.1MB in the end (delta: -46.3MB). Peak memory consumption was 104.7MB. Max. memory is 16.1GB. * Witness Printer took 12.30ms. Allocated memory is still 157.3MB. Free memory was 99.1MB in the beginning and 98.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 964]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 964. Possible FailurePath: [L966] DUPFF f, g, cf, cg, h; VAL [f={11:0}, g={25:0}] [L967] CALL, EXPR DUPFFnew(1) [L894] DUPFF ans = (DUPFF)malloc(sizeof(struct DUPFFstruct)); [L895] ans->coeffs = 0 VAL [\old(maxdeg)=1, ans={6:0}, maxdeg=1] [L896] COND TRUE maxdeg >= 0 [L897] ans->coeffs = (FFelem*)malloc((maxdeg+1)*sizeof(FFelem)) VAL [\old(maxdeg)=1, ans={6:0}, malloc((maxdeg+1)*sizeof(FFelem))={5:0}, maxdeg=1] [L898] EXPR ans->coeffs VAL [\old(maxdeg)=1, ans={6:0}, ans->coeffs={5:0}, maxdeg=1] [L898] FCALL memset(ans->coeffs, 0, (maxdeg+1)*sizeof(FFelem)) [L900] ans->maxdeg = maxdeg VAL [\old(maxdeg)=1, ans={6:0}, maxdeg=1] [L901] ans->deg = -1 VAL [\old(maxdeg)=1, ans={6:0}, maxdeg=1] [L902] return ans; VAL [\old(maxdeg)=1, \result={6:0}, ans={6:0}, maxdeg=1] [L967] RET, EXPR DUPFFnew(1) VAL [DUPFFnew(1)={6:0}, f={11:0}, g={25:0}] [L967] f = DUPFFnew(1) [L967] EXPR f->coeffs VAL [f={6:0}, f={11:0}, f->coeffs={5:0}, g={25:0}] [L967] f->coeffs[1] = 1 VAL [f={6:0}, f={11:0}, f->coeffs={5:0}, g={25:0}] [L967] f->deg = 1 VAL [f={11:0}, f={6:0}, g={25:0}] [L968] CALL, EXPR DUPFFnew(2) [L894] DUPFF ans = (DUPFF)malloc(sizeof(struct DUPFFstruct)); [L895] ans->coeffs = 0 VAL [\old(maxdeg)=2, ans={7:0}, maxdeg=2] [L896] COND TRUE maxdeg >= 0 [L897] ans->coeffs = (FFelem*)malloc((maxdeg+1)*sizeof(FFelem)) VAL [\old(maxdeg)=2, ans={7:0}, malloc((maxdeg+1)*sizeof(FFelem))={3:0}, maxdeg=2] [L898] EXPR ans->coeffs VAL [\old(maxdeg)=2, ans={7:0}, ans->coeffs={3:0}, maxdeg=2] [L898] FCALL memset(ans->coeffs, 0, (maxdeg+1)*sizeof(FFelem)) [L900] ans->maxdeg = maxdeg VAL [\old(maxdeg)=2, ans={7:0}, maxdeg=2] [L901] ans->deg = -1 VAL [\old(maxdeg)=2, ans={7:0}, maxdeg=2] [L902] return ans; VAL [\old(maxdeg)=2, \result={7:0}, ans={7:0}, maxdeg=2] [L968] RET, EXPR DUPFFnew(2) VAL [DUPFFnew(2)={7:0}, f={6:0}, f={11:0}, g={25:0}] [L968] g = DUPFFnew(2) [L968] EXPR g->coeffs VAL [f={11:0}, f={6:0}, g={25:0}, g={7:0}, g->coeffs={3:0}] [L968] g->coeffs[2] = 1 VAL [f={6:0}, f={11:0}, g={25:0}, g={7:0}, g->coeffs={3:0}] [L968] g->deg = 2 VAL [f={6:0}, f={11:0}, g={25:0}, g={7:0}] [L969] CALL, EXPR DUPFFexgcd(&cf, &cg, f, g) VAL [f={6:0}, fcofac={11:0}, g={7:0}, gcofac={25:0}] [L919] DUPFF u, v, uf, ug, vf, vg; [L920] FFelem q, lcu, lcvrecip, p; [L921] int df, dg, du, dv; VAL [f={6:0}, f={6:0}, fcofac={11:0}, fcofac={11:0}, g={7:0}, g={7:0}, gcofac={25:0}, gcofac={25:0}] [L922] CALL, EXPR DUPFFdeg(f) VAL [f={6:0}] [L890] EXPR f->deg VAL [f={6:0}, f={6:0}, f->deg=1] [L890] return f->deg; [L922] RET, EXPR DUPFFdeg(f) VAL [DUPFFdeg(f)=1, f={6:0}, f={6:0}, fcofac={11:0}, fcofac={11:0}, g={7:0}, g={7:0}, gcofac={25:0}, gcofac={25:0}] [L922] CALL, EXPR DUPFFdeg(g) VAL [f={7:0}] [L890] EXPR f->deg VAL [f={7:0}, f={7:0}, f->deg=2] [L890] return f->deg; [L922] RET, EXPR DUPFFdeg(g) VAL [DUPFFdeg(f)=1, DUPFFdeg(g)=2, f={6:0}, f={6:0}, fcofac={11:0}, fcofac={11:0}, g={7:0}, g={7:0}, gcofac={25:0}, gcofac={25:0}] [L922] COND TRUE DUPFFdeg(f) < DUPFFdeg(g) [L922] CALL, EXPR DUPFFexgcd(gcofac, fcofac, g, f) VAL [f={7:0}, fcofac={25:0}, g={6:0}, gcofac={11:0}] [L919] DUPFF u, v, uf, ug, vf, vg; [L920] FFelem q, lcu, lcvrecip, p; [L921] int df, dg, du, dv; VAL [f={7:0}, f={7:0}, fcofac={25:0}, fcofac={25:0}, g={6:0}, g={6:0}, gcofac={11:0}, gcofac={11:0}] [L922] CALL, EXPR DUPFFdeg(f) VAL [f={7:0}] [L890] EXPR f->deg VAL [f={7:0}, f={7:0}, f->deg=2] [L890] return f->deg; [L922] RET, EXPR DUPFFdeg(f) VAL [DUPFFdeg(f)=2, f={7:0}, f={7:0}, fcofac={25:0}, fcofac={25:0}, g={6:0}, g={6:0}, gcofac={11:0}, gcofac={11:0}] [L922] CALL, EXPR DUPFFdeg(g) VAL [f={6:0}] [L890] EXPR f->deg VAL [f={6:0}, f={6:0}, f->deg=1] [L890] return f->deg; [L922] RET, EXPR DUPFFdeg(g) VAL [DUPFFdeg(f)=2, DUPFFdeg(g)=1, f={7:0}, f={7:0}, fcofac={25:0}, fcofac={25:0}, g={6:0}, g={6:0}, gcofac={11:0}, gcofac={11:0}] [L922] COND FALSE !(DUPFFdeg(f) < DUPFFdeg(g)) [L923] CALL, EXPR DUPFFdeg(f) VAL [f={7:0}] [L890] EXPR f->deg VAL [f={7:0}, f={7:0}, f->deg=2] [L890] return f->deg; [L923] RET, EXPR DUPFFdeg(f) VAL [DUPFFdeg(f)=2, f={7:0}, f={7:0}, fcofac={25:0}, fcofac={25:0}, g={6:0}, g={6:0}, gcofac={11:0}, gcofac={11:0}] [L923] DUPFFdeg(f) != 2 || DUPFFdeg(g) != 1 VAL [DUPFFdeg(f)=2, DUPFFdeg(f) != 2 || DUPFFdeg(g) != 1=0, f={7:0}, f={7:0}, fcofac={25:0}, fcofac={25:0}, g={6:0}, g={6:0}, gcofac={11:0}, gcofac={11:0}] [L923] CALL, EXPR DUPFFdeg(g) VAL [f={6:0}] [L890] EXPR f->deg VAL [f={6:0}, f={6:0}, f->deg=1] [L890] return f->deg; [L923] RET, EXPR DUPFFdeg(g) VAL [DUPFFdeg(f)=2, DUPFFdeg(f) != 2 || DUPFFdeg(g) != 1=0, DUPFFdeg(g)=1, f={7:0}, f={7:0}, fcofac={25:0}, fcofac={25:0}, g={6:0}, g={6:0}, gcofac={11:0}, gcofac={11:0}] [L923] DUPFFdeg(f) != 2 || DUPFFdeg(g) != 1 VAL [DUPFFdeg(f)=2, DUPFFdeg(f) != 2 || DUPFFdeg(g) != 1=0, DUPFFdeg(g)=1, f={7:0}, f={7:0}, fcofac={25:0}, fcofac={25:0}, g={6:0}, g={6:0}, gcofac={11:0}, gcofac={11:0}] [L923] COND FALSE !(DUPFFdeg(f) != 2 || DUPFFdeg(g) != 1) [L924] EXPR f->coeffs VAL [f={7:0}, f={7:0}, f->coeffs={3:0}, fcofac={25:0}, fcofac={25:0}, g={6:0}, g={6:0}, gcofac={11:0}, gcofac={11:0}] [L924] EXPR f->coeffs[0] VAL [f={7:0}, f={7:0}, f->coeffs={3:0}, f->coeffs[0]=0, fcofac={25:0}, fcofac={25:0}, g={6:0}, g={6:0}, gcofac={11:0}, gcofac={11:0}] [L924] COND TRUE f->coeffs[0] == 0 [L924] return f; VAL [\result={7:0}, f={7:0}, f={7:0}, fcofac={25:0}, fcofac={25:0}, g={6:0}, g={6:0}, gcofac={11:0}, gcofac={11:0}] [L922] RET, EXPR DUPFFexgcd(gcofac, fcofac, g, f) VAL [DUPFFexgcd(gcofac, fcofac, g, f)={7:0}, f={6:0}, f={6:0}, fcofac={11:0}, fcofac={11:0}, g={7:0}, g={7:0}, gcofac={25:0}, gcofac={25:0}] [L922] return DUPFFexgcd(gcofac, fcofac, g, f); [L969] RET, EXPR DUPFFexgcd(&cf, &cg, f, g) VAL [DUPFFexgcd(&cf, &cg, f, g)={7:0}, f={6:0}, f={11:0}, g={25:0}, g={7:0}] [L969] h = DUPFFexgcd(&cf, &cg, f, g) [L970] h = h [L971] return 0; [L971] return 0; [L971] return 0; VAL [\result=0, f={6:0}, g={7:0}, h={7:0}] - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 187 locations, 55 error locations. Started 1 CEGAR loops. OverallTime: 510.7s, OverallIterations: 37, TraceHistogramMax: 20, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.1s, AutomataDifference: 108.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3666 SdHoareTripleChecker+Valid, 87.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3565 mSDsluCounter, 56722 SdHoareTripleChecker+Invalid, 78.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 7572 IncrementalHoareTripleChecker+Unchecked, 49431 mSDsCounter, 1017 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 20189 IncrementalHoareTripleChecker+Invalid, 28778 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1017 mSolverCounterUnsat, 7291 mSDtfsCounter, 20189 mSolverCounterSat, 0.4s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4000 GetRequests, 3179 SyntacticMatches, 105 SemanticMatches, 716 ConstructedPredicates, 22 IntricatePredicates, 0 DeprecatedPredicates, 3774 ImplicationChecksByTransitivity, 87.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=570occurred in iteration=31, InterpolantAutomatonStates: 510, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 36 MinimizatonAttempts, 494 StatesRemovedByMinimization, 28 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.3s SsaConstructionTime, 16.7s SatisfiabilityAnalysisTime, 365.2s InterpolantComputationTime, 2436 NumberOfCodeBlocks, 2342 NumberOfCodeBlocksAsserted, 44 NumberOfCheckSat, 3710 ConstructedInterpolants, 457 QuantifiedInterpolants, 35369 SizeOfPredicates, 293 NumberOfNonLiveVariables, 17256 ConjunctsInSsa, 774 ConjunctsInUnsatCore, 56 InterpolantComputations, 16 PerfectInterpolantSequences, 9031/10631 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-18 20:58:33,273 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fc67df-1619-486f-827c-1db2d83bddf6/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample