./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_22-nocollapse.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 2329fc70 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_a61eaf6a-743e-46ca-a33c-780545952cda/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a61eaf6a-743e-46ca-a33c-780545952cda/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a61eaf6a-743e-46ca-a33c-780545952cda/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a61eaf6a-743e-46ca-a33c-780545952cda/bin/uautomizer-uyxdKDjOR8/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_22-nocollapse.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a61eaf6a-743e-46ca-a33c-780545952cda/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a61eaf6a-743e-46ca-a33c-780545952cda/bin/uautomizer-uyxdKDjOR8 --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 a0270befea30c9963adb19613f3074c8c29d9100e1f0592dc0c89cf3d3dda0df --- 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-2329fc7 [2022-12-13 17:13:26,976 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 17:13:26,978 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 17:13:26,991 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 17:13:26,991 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 17:13:26,992 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 17:13:26,993 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 17:13:26,994 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 17:13:26,995 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 17:13:26,995 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 17:13:26,996 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 17:13:26,996 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 17:13:26,997 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 17:13:26,997 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 17:13:26,998 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 17:13:26,999 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 17:13:26,999 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 17:13:27,000 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 17:13:27,001 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 17:13:27,002 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 17:13:27,003 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 17:13:27,004 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 17:13:27,004 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 17:13:27,005 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 17:13:27,007 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 17:13:27,007 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 17:13:27,007 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 17:13:27,008 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 17:13:27,008 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 17:13:27,009 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 17:13:27,009 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 17:13:27,010 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 17:13:27,010 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 17:13:27,011 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 17:13:27,011 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 17:13:27,011 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 17:13:27,012 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 17:13:27,012 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 17:13:27,012 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 17:13:27,013 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 17:13:27,013 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 17:13:27,014 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a61eaf6a-743e-46ca-a33c-780545952cda/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-12-13 17:13:27,027 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 17:13:27,027 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 17:13:27,028 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 17:13:27,028 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 17:13:27,033 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 17:13:27,033 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 17:13:27,034 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 17:13:27,034 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 17:13:27,034 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 17:13:27,034 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 17:13:27,035 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 17:13:27,035 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 17:13:27,035 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 17:13:27,035 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 17:13:27,035 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 17:13:27,035 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-13 17:13:27,036 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-13 17:13:27,036 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-13 17:13:27,036 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 17:13:27,036 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 17:13:27,036 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 17:13:27,036 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 17:13:27,036 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 17:13:27,037 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 17:13:27,037 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 17:13:27,037 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 17:13:27,037 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 17:13:27,037 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 17:13:27,038 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 17:13:27,038 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 17:13:27,038 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 17:13:27,038 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 17:13:27,038 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 17:13:27,039 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 17:13:27,039 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_a61eaf6a-743e-46ca-a33c-780545952cda/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a61eaf6a-743e-46ca-a33c-780545952cda/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a0270befea30c9963adb19613f3074c8c29d9100e1f0592dc0c89cf3d3dda0df [2022-12-13 17:13:27,200 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 17:13:27,217 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 17:13:27,219 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 17:13:27,220 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 17:13:27,220 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 17:13:27,221 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a61eaf6a-743e-46ca-a33c-780545952cda/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/goblint-regression/09-regions_22-nocollapse.i [2022-12-13 17:13:29,847 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 17:13:30,063 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 17:13:30,063 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a61eaf6a-743e-46ca-a33c-780545952cda/sv-benchmarks/c/goblint-regression/09-regions_22-nocollapse.i [2022-12-13 17:13:30,076 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a61eaf6a-743e-46ca-a33c-780545952cda/bin/uautomizer-uyxdKDjOR8/data/6416b8880/bc23ab2171bf4db9a3f30edcd217417f/FLAGe70f08af1 [2022-12-13 17:13:30,090 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a61eaf6a-743e-46ca-a33c-780545952cda/bin/uautomizer-uyxdKDjOR8/data/6416b8880/bc23ab2171bf4db9a3f30edcd217417f [2022-12-13 17:13:30,092 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 17:13:30,094 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 17:13:30,095 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 17:13:30,095 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 17:13:30,098 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 17:13:30,099 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 05:13:30" (1/1) ... [2022-12-13 17:13:30,099 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4209bb6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:13:30, skipping insertion in model container [2022-12-13 17:13:30,100 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 05:13:30" (1/1) ... [2022-12-13 17:13:30,105 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 17:13:30,134 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 17:13:30,445 WARN L1576 CHandler]: Possible shadowing of function new [2022-12-13 17:13:30,446 WARN L1576 CHandler]: Possible shadowing of function new [2022-12-13 17:13:30,446 WARN L1576 CHandler]: Possible shadowing of function new [2022-12-13 17:13:30,447 WARN L1576 CHandler]: Possible shadowing of function new [2022-12-13 17:13:30,465 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 17:13:30,478 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) [2022-12-13 17:13:30,479 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6e122b33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:13:30, skipping insertion in model container [2022-12-13 17:13:30,479 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 17:13:30,479 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2022-12-13 17:13:30,481 INFO L158 Benchmark]: Toolchain (without parser) took 386.83ms. Allocated memory is still 113.2MB. Free memory was 78.7MB in the beginning and 63.4MB in the end (delta: 15.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-13 17:13:30,481 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 113.2MB. Free memory was 84.9MB in the beginning and 84.7MB in the end (delta: 140.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 17:13:30,482 INFO L158 Benchmark]: CACSL2BoogieTranslator took 384.51ms. Allocated memory is still 113.2MB. Free memory was 78.4MB in the beginning and 63.7MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-13 17:13:30,483 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 113.2MB. Free memory was 84.9MB in the beginning and 84.7MB in the end (delta: 140.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 384.51ms. Allocated memory is still 113.2MB. Free memory was 78.4MB in the beginning and 63.7MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 1038]: 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_a61eaf6a-743e-46ca-a33c-780545952cda/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a61eaf6a-743e-46ca-a33c-780545952cda/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a61eaf6a-743e-46ca-a33c-780545952cda/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a61eaf6a-743e-46ca-a33c-780545952cda/bin/uautomizer-uyxdKDjOR8/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_22-nocollapse.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a61eaf6a-743e-46ca-a33c-780545952cda/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a61eaf6a-743e-46ca-a33c-780545952cda/bin/uautomizer-uyxdKDjOR8 --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 a0270befea30c9963adb19613f3074c8c29d9100e1f0592dc0c89cf3d3dda0df --- 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-2329fc7 [2022-12-13 17:13:31,935 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 17:13:31,936 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 17:13:31,955 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 17:13:31,955 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 17:13:31,956 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 17:13:31,957 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 17:13:31,958 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 17:13:31,959 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 17:13:31,960 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 17:13:31,960 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 17:13:31,961 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 17:13:31,961 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 17:13:31,962 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 17:13:31,962 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 17:13:31,963 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 17:13:31,964 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 17:13:31,964 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 17:13:31,965 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 17:13:31,966 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 17:13:31,967 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 17:13:31,968 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 17:13:31,969 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 17:13:31,969 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 17:13:31,972 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 17:13:31,972 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 17:13:31,972 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 17:13:31,972 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 17:13:31,973 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 17:13:31,973 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 17:13:31,973 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 17:13:31,974 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 17:13:31,975 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 17:13:31,975 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 17:13:31,976 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 17:13:31,976 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 17:13:31,976 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 17:13:31,977 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 17:13:31,977 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 17:13:31,977 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 17:13:31,978 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 17:13:31,978 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a61eaf6a-743e-46ca-a33c-780545952cda/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2022-12-13 17:13:31,993 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 17:13:31,993 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 17:13:31,993 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 17:13:31,993 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 17:13:31,994 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 17:13:31,994 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 17:13:31,994 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 17:13:31,995 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 17:13:31,995 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 17:13:31,995 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 17:13:31,995 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 17:13:31,995 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 17:13:31,995 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 17:13:31,995 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 17:13:31,996 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 17:13:31,996 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-13 17:13:31,996 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-13 17:13:31,996 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-13 17:13:31,996 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 17:13:31,996 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 17:13:31,996 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 17:13:31,997 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 17:13:31,997 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 17:13:31,997 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 17:13:31,997 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 17:13:31,997 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 17:13:31,997 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 17:13:31,997 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 17:13:31,998 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 17:13:31,998 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 17:13:31,998 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 17:13:31,998 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 17:13:31,998 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 17:13:31,998 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 17:13:31,999 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 17:13:31,999 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 17:13:31,999 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 17:13:31,999 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_a61eaf6a-743e-46ca-a33c-780545952cda/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a61eaf6a-743e-46ca-a33c-780545952cda/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a0270befea30c9963adb19613f3074c8c29d9100e1f0592dc0c89cf3d3dda0df [2022-12-13 17:13:32,244 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 17:13:32,263 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 17:13:32,265 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 17:13:32,266 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 17:13:32,267 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 17:13:32,268 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a61eaf6a-743e-46ca-a33c-780545952cda/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/goblint-regression/09-regions_22-nocollapse.i [2022-12-13 17:13:34,972 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 17:13:35,183 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 17:13:35,183 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a61eaf6a-743e-46ca-a33c-780545952cda/sv-benchmarks/c/goblint-regression/09-regions_22-nocollapse.i [2022-12-13 17:13:35,193 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a61eaf6a-743e-46ca-a33c-780545952cda/bin/uautomizer-uyxdKDjOR8/data/3baa37867/731e4078ea064aeb8ba3c77f582005de/FLAG928ddf9e9 [2022-12-13 17:13:35,204 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a61eaf6a-743e-46ca-a33c-780545952cda/bin/uautomizer-uyxdKDjOR8/data/3baa37867/731e4078ea064aeb8ba3c77f582005de [2022-12-13 17:13:35,206 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 17:13:35,207 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 17:13:35,208 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 17:13:35,208 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 17:13:35,211 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 17:13:35,212 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 05:13:35" (1/1) ... [2022-12-13 17:13:35,213 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13dbed46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:13:35, skipping insertion in model container [2022-12-13 17:13:35,213 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 05:13:35" (1/1) ... [2022-12-13 17:13:35,219 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 17:13:35,250 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 17:13:35,528 WARN L1576 CHandler]: Possible shadowing of function new [2022-12-13 17:13:35,528 WARN L1576 CHandler]: Possible shadowing of function new [2022-12-13 17:13:35,529 WARN L1576 CHandler]: Possible shadowing of function new [2022-12-13 17:13:35,529 WARN L1576 CHandler]: Possible shadowing of function new [2022-12-13 17:13:35,548 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 17:13:35,563 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-12-13 17:13:35,572 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 17:13:35,618 WARN L1576 CHandler]: Possible shadowing of function new [2022-12-13 17:13:35,619 WARN L1576 CHandler]: Possible shadowing of function new [2022-12-13 17:13:35,619 WARN L1576 CHandler]: Possible shadowing of function new [2022-12-13 17:13:35,620 WARN L1576 CHandler]: Possible shadowing of function new [2022-12-13 17:13:35,640 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 17:13:35,648 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 17:13:35,682 WARN L1576 CHandler]: Possible shadowing of function new [2022-12-13 17:13:35,682 WARN L1576 CHandler]: Possible shadowing of function new [2022-12-13 17:13:35,683 WARN L1576 CHandler]: Possible shadowing of function new [2022-12-13 17:13:35,683 WARN L1576 CHandler]: Possible shadowing of function new [2022-12-13 17:13:35,694 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 17:13:35,740 INFO L208 MainTranslator]: Completed translation [2022-12-13 17:13:35,740 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:13:35 WrapperNode [2022-12-13 17:13:35,740 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 17:13:35,741 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 17:13:35,741 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 17:13:35,741 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 17:13:35,746 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:13:35" (1/1) ... [2022-12-13 17:13:35,762 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:13:35" (1/1) ... [2022-12-13 17:13:35,782 INFO L138 Inliner]: procedures = 275, calls = 35, calls flagged for inlining = 9, calls inlined = 8, statements flattened = 126 [2022-12-13 17:13:35,782 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 17:13:35,783 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 17:13:35,783 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 17:13:35,783 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 17:13:35,791 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:13:35" (1/1) ... [2022-12-13 17:13:35,791 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:13:35" (1/1) ... [2022-12-13 17:13:35,794 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:13:35" (1/1) ... [2022-12-13 17:13:35,795 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:13:35" (1/1) ... [2022-12-13 17:13:35,804 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:13:35" (1/1) ... [2022-12-13 17:13:35,807 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:13:35" (1/1) ... [2022-12-13 17:13:35,809 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:13:35" (1/1) ... [2022-12-13 17:13:35,810 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:13:35" (1/1) ... [2022-12-13 17:13:35,813 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 17:13:35,813 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 17:13:35,813 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 17:13:35,813 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 17:13:35,814 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:13:35" (1/1) ... [2022-12-13 17:13:35,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 17:13:35,828 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a61eaf6a-743e-46ca-a33c-780545952cda/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:13:35,836 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a61eaf6a-743e-46ca-a33c-780545952cda/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 17:13:35,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a61eaf6a-743e-46ca-a33c-780545952cda/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 17:13:35,863 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-12-13 17:13:35,863 INFO L130 BoogieDeclarations]: Found specification of procedure f [2022-12-13 17:13:35,863 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2022-12-13 17:13:35,868 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 17:13:35,868 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-13 17:13:35,868 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 17:13:35,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-12-13 17:13:35,868 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-13 17:13:35,868 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-13 17:13:35,868 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 17:13:35,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-13 17:13:35,869 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 17:13:35,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 17:13:35,870 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 17:13:35,990 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 17:13:35,992 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 17:13:36,459 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 17:13:36,467 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 17:13:36,467 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-12-13 17:13:36,469 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:13:36 BoogieIcfgContainer [2022-12-13 17:13:36,470 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 17:13:36,472 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 17:13:36,472 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 17:13:36,476 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 17:13:36,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 05:13:35" (1/3) ... [2022-12-13 17:13:36,477 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8c1a4df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 05:13:36, skipping insertion in model container [2022-12-13 17:13:36,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:13:35" (2/3) ... [2022-12-13 17:13:36,477 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8c1a4df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 05:13:36, skipping insertion in model container [2022-12-13 17:13:36,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:13:36" (3/3) ... [2022-12-13 17:13:36,479 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_22-nocollapse.i [2022-12-13 17:13:36,495 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 17:13:36,495 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 33 error locations. [2022-12-13 17:13:36,495 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 17:13:36,598 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 17:13:36,636 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 223 places, 231 transitions, 472 flow [2022-12-13 17:13:36,711 INFO L130 PetriNetUnfolder]: 15/229 cut-off events. [2022-12-13 17:13:36,711 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 17:13:36,718 INFO L83 FinitePrefix]: Finished finitePrefix Result has 236 conditions, 229 events. 15/229 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 662 event pairs, 0 based on Foata normal form. 0/173 useless extension candidates. Maximal degree in co-relation 168. Up to 2 conditions per place. [2022-12-13 17:13:36,718 INFO L82 GeneralOperation]: Start removeDead. Operand has 223 places, 231 transitions, 472 flow [2022-12-13 17:13:36,725 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 221 places, 229 transitions, 464 flow [2022-12-13 17:13:36,729 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 17:13:36,740 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 221 places, 229 transitions, 464 flow [2022-12-13 17:13:36,743 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 221 places, 229 transitions, 464 flow [2022-12-13 17:13:36,743 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 221 places, 229 transitions, 464 flow [2022-12-13 17:13:36,790 INFO L130 PetriNetUnfolder]: 15/229 cut-off events. [2022-12-13 17:13:36,790 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 17:13:36,792 INFO L83 FinitePrefix]: Finished finitePrefix Result has 236 conditions, 229 events. 15/229 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 661 event pairs, 0 based on Foata normal form. 0/173 useless extension candidates. Maximal degree in co-relation 168. Up to 2 conditions per place. [2022-12-13 17:13:36,796 INFO L119 LiptonReduction]: Number of co-enabled transitions 8134 [2022-12-13 17:15:03,000 WARN L233 SmtUtils]: Spent 5.42s on a formula simplification. DAG size of input: 126 DAG size of output: 122 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 17:15:12,129 WARN L233 SmtUtils]: Spent 5.61s on a formula simplification that was a NOOP. DAG size: 134 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 17:15:22,016 WARN L233 SmtUtils]: Spent 5.44s on a formula simplification that was a NOOP. DAG size: 134 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 17:15:32,505 WARN L233 SmtUtils]: Spent 5.49s on a formula simplification that was a NOOP. DAG size: 161 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 17:15:37,742 WARN L233 SmtUtils]: Spent 5.24s on a formula simplification that was a NOOP. DAG size: 161 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 17:16:08,980 WARN L233 SmtUtils]: Spent 5.25s on a formula simplification that was a NOOP. DAG size: 165 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 17:16:14,855 WARN L233 SmtUtils]: Spent 5.87s on a formula simplification that was a NOOP. DAG size: 165 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 17:16:19,859 WARN L233 SmtUtils]: Spent 5.00s on a formula simplification that was a NOOP. DAG size: 170 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 17:16:25,060 WARN L233 SmtUtils]: Spent 5.20s on a formula simplification that was a NOOP. DAG size: 170 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 17:19:17,155 WARN L233 SmtUtils]: Spent 2.57m on a formula simplification. DAG size of input: 224 DAG size of output: 216 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 17:20:28,895 WARN L233 SmtUtils]: Spent 1.20m on a formula simplification that was a NOOP. DAG size: 212 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 17:23:46,499 WARN L233 SmtUtils]: Spent 3.29m on a formula simplification. DAG size of input: 229 DAG size of output: 222 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 17:25:19,488 WARN L233 SmtUtils]: Spent 1.55m on a formula simplification that was a NOOP. DAG size: 218 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 17:25:19,492 INFO L134 LiptonReduction]: Checked pairs total: 12514 [2022-12-13 17:25:19,492 INFO L136 LiptonReduction]: Total number of compositions: 278 [2022-12-13 17:25:19,502 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 17:25:19,506 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=PETRI_NET, 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;@29cb3a66, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 17:25:19,506 INFO L358 AbstractCegarLoop]: Starting to check reachability of 51 error locations. [2022-12-13 17:25:19,508 INFO L130 PetriNetUnfolder]: 0/1 cut-off events. [2022-12-13 17:25:19,509 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 17:25:19,509 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:25:19,509 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1] [2022-12-13 17:25:19,510 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [fErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, fErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, fErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 48 more)] === [2022-12-13 17:25:19,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:25:19,514 INFO L85 PathProgramCache]: Analyzing trace with hash 25665, now seen corresponding path program 1 times [2022-12-13 17:25:19,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 17:25:19,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1440322394] [2022-12-13 17:25:19,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:25:19,529 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 [2022-12-13 17:25:19,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a61eaf6a-743e-46ca-a33c-780545952cda/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 17:25:19,530 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a61eaf6a-743e-46ca-a33c-780545952cda/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 17:25:19,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a61eaf6a-743e-46ca-a33c-780545952cda/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 17:25:19,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:25:19,598 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 17:25:19,601 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:25:19,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:25:19,624 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 17:25:19,624 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 17:25:19,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1440322394] [2022-12-13 17:25:19,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1440322394] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:25:19,625 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:25:19,625 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 17:25:19,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029390888] [2022-12-13 17:25:19,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:25:19,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 17:25:19,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 17:25:19,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 17:25:19,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 17:25:19,693 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 216 out of 509 [2022-12-13 17:25:19,696 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 67 transitions, 140 flow. Second operand has 3 states, 3 states have (on average 216.66666666666666) internal successors, (650), 3 states have internal predecessors, (650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:25:19,696 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:25:19,696 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 216 of 509 [2022-12-13 17:25:19,697 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:25:21,353 INFO L130 PetriNetUnfolder]: 1442/2267 cut-off events. [2022-12-13 17:25:21,353 INFO L131 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2022-12-13 17:25:21,356 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4542 conditions, 2267 events. 1442/2267 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 10718 event pairs, 1215 based on Foata normal form. 0/1092 useless extension candidates. Maximal degree in co-relation 4486. Up to 2234 conditions per place. [2022-12-13 17:25:21,368 INFO L137 encePairwiseOnDemand]: 489/509 looper letters, 59 selfloop transitions, 2 changer transitions 0/62 dead transitions. [2022-12-13 17:25:21,368 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 62 transitions, 252 flow [2022-12-13 17:25:21,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 17:25:21,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 17:25:21,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 740 transitions. [2022-12-13 17:25:21,386 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.48461034708578915 [2022-12-13 17:25:21,386 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 740 transitions. [2022-12-13 17:25:21,387 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 740 transitions. [2022-12-13 17:25:21,389 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:25:21,391 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 740 transitions. [2022-12-13 17:25:21,396 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 246.66666666666666) internal successors, (740), 3 states have internal predecessors, (740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:25:21,404 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 509.0) internal successors, (2036), 4 states have internal predecessors, (2036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:25:21,406 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 509.0) internal successors, (2036), 4 states have internal predecessors, (2036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:25:21,408 INFO L175 Difference]: Start difference. First operand has 68 places, 67 transitions, 140 flow. Second operand 3 states and 740 transitions. [2022-12-13 17:25:21,409 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 62 transitions, 252 flow [2022-12-13 17:25:21,411 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 62 transitions, 250 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 17:25:21,413 INFO L231 Difference]: Finished difference. Result has 54 places, 53 transitions, 124 flow [2022-12-13 17:25:21,415 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=509, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=124, PETRI_PLACES=54, PETRI_TRANSITIONS=53} [2022-12-13 17:25:21,418 INFO L288 CegarLoopForPetriNet]: 68 programPoint places, -14 predicate places. [2022-12-13 17:25:21,419 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 53 transitions, 124 flow [2022-12-13 17:25:21,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 216.66666666666666) internal successors, (650), 3 states have internal predecessors, (650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:25:21,419 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:25:21,420 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1] [2022-12-13 17:25:21,433 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a61eaf6a-743e-46ca-a33c-780545952cda/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-12-13 17:25:21,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a61eaf6a-743e-46ca-a33c-780545952cda/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 17:25:21,621 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [fErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, fErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, fErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 48 more)] === [2022-12-13 17:25:21,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:25:21,622 INFO L85 PathProgramCache]: Analyzing trace with hash 25717, now seen corresponding path program 1 times [2022-12-13 17:25:21,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 17:25:21,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1885736716] [2022-12-13 17:25:21,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:25:21,623 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 [2022-12-13 17:25:21,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a61eaf6a-743e-46ca-a33c-780545952cda/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 17:25:21,624 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a61eaf6a-743e-46ca-a33c-780545952cda/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 17:25:21,625 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a61eaf6a-743e-46ca-a33c-780545952cda/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 17:25:21,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:25:21,737 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 13 conjunts are in the unsatisfiable core [2022-12-13 17:25:21,738 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:25:21,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 17:25:21,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 17:25:21,846 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-13 17:25:21,847 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 23 [2022-12-13 17:25:21,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:25:21,895 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 17:25:21,895 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 17:25:21,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1885736716] [2022-12-13 17:25:21,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1885736716] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:25:21,896 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:25:21,896 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 17:25:21,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691100147] [2022-12-13 17:25:21,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:25:21,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 17:25:21,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 17:25:21,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 17:25:21,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 17:25:22,368 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 214 out of 509 [2022-12-13 17:25:22,369 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 53 transitions, 124 flow. Second operand has 3 states, 3 states have (on average 214.66666666666666) internal successors, (644), 3 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:25:22,369 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:25:22,369 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 214 of 509 [2022-12-13 17:25:22,369 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:25:24,376 INFO L130 PetriNetUnfolder]: 1445/2270 cut-off events. [2022-12-13 17:25:24,377 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 17:25:24,378 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4557 conditions, 2270 events. 1445/2270 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 10711 event pairs, 1215 based on Foata normal form. 0/1097 useless extension candidates. Maximal degree in co-relation 4520. Up to 2243 conditions per place. [2022-12-13 17:25:24,384 INFO L137 encePairwiseOnDemand]: 501/509 looper letters, 54 selfloop transitions, 5 changer transitions 0/60 dead transitions. [2022-12-13 17:25:24,384 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 60 transitions, 259 flow [2022-12-13 17:25:24,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 17:25:24,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 17:25:24,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 703 transitions. [2022-12-13 17:25:24,388 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.46037982973149966 [2022-12-13 17:25:24,388 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 703 transitions. [2022-12-13 17:25:24,389 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 703 transitions. [2022-12-13 17:25:24,389 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:25:24,389 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 703 transitions. [2022-12-13 17:25:24,391 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 234.33333333333334) internal successors, (703), 3 states have internal predecessors, (703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:25:24,396 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 509.0) internal successors, (2036), 4 states have internal predecessors, (2036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:25:24,396 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 509.0) internal successors, (2036), 4 states have internal predecessors, (2036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:25:24,397 INFO L175 Difference]: Start difference. First operand has 54 places, 53 transitions, 124 flow. Second operand 3 states and 703 transitions. [2022-12-13 17:25:24,397 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 60 transitions, 259 flow [2022-12-13 17:25:24,397 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 60 transitions, 256 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 17:25:24,398 INFO L231 Difference]: Finished difference. Result has 56 places, 57 transitions, 161 flow [2022-12-13 17:25:24,398 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=509, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=161, PETRI_PLACES=56, PETRI_TRANSITIONS=57} [2022-12-13 17:25:24,399 INFO L288 CegarLoopForPetriNet]: 68 programPoint places, -12 predicate places. [2022-12-13 17:25:24,399 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 57 transitions, 161 flow [2022-12-13 17:25:24,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 214.66666666666666) internal successors, (644), 3 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:25:24,399 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:25:24,399 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1] [2022-12-13 17:25:24,407 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a61eaf6a-743e-46ca-a33c-780545952cda/bin/uautomizer-uyxdKDjOR8/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)] Ended with exit code 0 [2022-12-13 17:25:24,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a61eaf6a-743e-46ca-a33c-780545952cda/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 17:25:24,600 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [fErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, fErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, fErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 48 more)] === [2022-12-13 17:25:24,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:25:24,601 INFO L85 PathProgramCache]: Analyzing trace with hash 25713, now seen corresponding path program 1 times [2022-12-13 17:25:24,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 17:25:24,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1565321469] [2022-12-13 17:25:24,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:25:24,602 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 [2022-12-13 17:25:24,602 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a61eaf6a-743e-46ca-a33c-780545952cda/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 17:25:24,603 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a61eaf6a-743e-46ca-a33c-780545952cda/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 17:25:24,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a61eaf6a-743e-46ca-a33c-780545952cda/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 17:25:24,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:25:24,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-13 17:25:24,674 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:25:24,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 17:25:24,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 17:25:24,739 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-13 17:25:24,740 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 31 [2022-12-13 17:25:24,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:25:24,763 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 17:25:24,763 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 17:25:24,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1565321469] [2022-12-13 17:25:24,763 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1565321469] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:25:24,763 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:25:24,764 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 17:25:24,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805572156] [2022-12-13 17:25:24,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:25:24,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 17:25:24,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 17:25:24,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 17:25:24,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 17:25:25,102 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 216 out of 509 [2022-12-13 17:25:25,103 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 57 transitions, 161 flow. Second operand has 3 states, 3 states have (on average 216.66666666666666) internal successors, (650), 3 states have internal predecessors, (650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:25:25,103 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:25:25,104 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 216 of 509 [2022-12-13 17:25:25,104 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:25:26,403 INFO L130 PetriNetUnfolder]: 1387/2162 cut-off events. [2022-12-13 17:25:26,403 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 17:25:26,405 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4373 conditions, 2162 events. 1387/2162 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 10931 event pairs, 231 based on Foata normal form. 3/1046 useless extension candidates. Maximal degree in co-relation 4329. Up to 1694 conditions per place. [2022-12-13 17:25:26,410 INFO L137 encePairwiseOnDemand]: 503/509 looper letters, 79 selfloop transitions, 2 changer transitions 0/82 dead transitions. [2022-12-13 17:25:26,410 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 82 transitions, 373 flow [2022-12-13 17:25:26,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 17:25:26,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 17:25:26,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 728 transitions. [2022-12-13 17:25:26,413 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4767518009168304 [2022-12-13 17:25:26,413 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 728 transitions. [2022-12-13 17:25:26,413 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 728 transitions. [2022-12-13 17:25:26,414 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:25:26,414 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 728 transitions. [2022-12-13 17:25:26,416 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 242.66666666666666) internal successors, (728), 3 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:25:26,419 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 509.0) internal successors, (2036), 4 states have internal predecessors, (2036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:25:26,420 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 509.0) internal successors, (2036), 4 states have internal predecessors, (2036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:25:26,420 INFO L175 Difference]: Start difference. First operand has 56 places, 57 transitions, 161 flow. Second operand 3 states and 728 transitions. [2022-12-13 17:25:26,420 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 82 transitions, 373 flow [2022-12-13 17:25:26,420 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 82 transitions, 368 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 17:25:26,421 INFO L231 Difference]: Finished difference. Result has 56 places, 55 transitions, 162 flow [2022-12-13 17:25:26,422 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=509, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=162, PETRI_PLACES=56, PETRI_TRANSITIONS=55} [2022-12-13 17:25:26,422 INFO L288 CegarLoopForPetriNet]: 68 programPoint places, -12 predicate places. [2022-12-13 17:25:26,422 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 55 transitions, 162 flow [2022-12-13 17:25:26,423 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 216.66666666666666) internal successors, (650), 3 states have internal predecessors, (650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:25:26,423 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:25:26,423 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-12-13 17:25:26,434 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a61eaf6a-743e-46ca-a33c-780545952cda/bin/uautomizer-uyxdKDjOR8/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)] Ended with exit code 0 [2022-12-13 17:25:26,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a61eaf6a-743e-46ca-a33c-780545952cda/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 17:25:26,624 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [fErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, fErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, fErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 48 more)] === [2022-12-13 17:25:26,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:25:26,624 INFO L85 PathProgramCache]: Analyzing trace with hash 24737321, now seen corresponding path program 1 times [2022-12-13 17:25:26,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 17:25:26,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [731735030] [2022-12-13 17:25:26,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:25:26,625 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 [2022-12-13 17:25:26,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a61eaf6a-743e-46ca-a33c-780545952cda/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 17:25:26,626 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a61eaf6a-743e-46ca-a33c-780545952cda/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 17:25:26,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a61eaf6a-743e-46ca-a33c-780545952cda/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 17:25:26,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:25:26,991 INFO L263 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 26 conjunts are in the unsatisfiable core [2022-12-13 17:25:26,995 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:25:28,904 INFO L321 Elim1Store]: treesize reduction 372, result has 28.0 percent of original size [2022-12-13 17:25:28,904 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 12 case distinctions, treesize of input 1022 treesize of output 857 [2022-12-13 17:25:28,965 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 12 treesize of output 11 [2022-12-13 17:25:29,017 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 20 treesize of output 19 [2022-12-13 17:25:29,097 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 14 treesize of output 15 [2022-12-13 17:25:29,159 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 20 treesize of output 19 [2022-12-13 17:25:29,222 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 20 treesize of output 19 [2022-12-13 17:25:37,699 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-13 17:25:40,863 INFO L321 Elim1Store]: treesize reduction 1156, result has 18.2 percent of original size [2022-12-13 17:25:40,864 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 10 new quantified variables, introduced 40 case distinctions, treesize of input 1759 treesize of output 2671 [2022-12-13 17:26:53,159 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-13 17:26:53,349 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 17 treesize of output 11 [2022-12-13 17:26:53,456 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 17 treesize of output 11 [2022-12-13 17:26:57,797 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-13 17:27:08,073 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-13 17:27:13,276 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 17 treesize of output 11 [2022-12-13 17:27:15,358 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-13 17:27:16,668 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 17 treesize of output 11 [2022-12-13 17:27:17,956 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 17 treesize of output 11 [2022-12-13 17:27:19,196 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 17 treesize of output 11 [2022-12-13 17:27:19,349 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 17 treesize of output 11 [2022-12-13 17:27:52,166 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-13 17:27:53,593 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-13 17:27:58,252 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-13 17:27:58,945 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-13 17:28:00,943 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-13 17:28:01,298 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 17 treesize of output 11 [2022-12-13 17:28:01,384 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 17 treesize of output 11 [2022-12-13 17:28:03,115 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 17 treesize of output 11 [2022-12-13 17:28:03,282 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 17 treesize of output 11 [2022-12-13 17:28:03,545 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 17 treesize of output 11 [2022-12-13 17:28:05,512 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 17 treesize of output 11 [2022-12-13 17:28:05,663 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 17 treesize of output 11 [2022-12-13 17:28:05,831 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 17 treesize of output 11 [2022-12-13 17:28:09,747 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-13 17:28:09,994 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-13 17:28:14,121 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-13 17:28:15,567 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 17 treesize of output 11 [2022-12-13 17:28:15,862 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 17 treesize of output 11 [2022-12-13 17:28:15,958 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 17 treesize of output 11 [2022-12-13 17:28:16,292 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 17 treesize of output 11 [2022-12-13 17:28:16,548 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 17 treesize of output 11 [2022-12-13 17:28:30,940 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 17 treesize of output 11 [2022-12-13 17:28:32,512 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 17 treesize of output 11 [2022-12-13 17:28:32,567 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 17 treesize of output 11 [2022-12-13 17:28:35,613 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 17 treesize of output 11 [2022-12-13 17:28:35,771 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 17 treesize of output 11 [2022-12-13 17:28:36,011 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 17 treesize of output 11 [2022-12-13 17:28:36,245 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 17 treesize of output 11 [2022-12-13 17:28:36,410 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 17 treesize of output 11 [2022-12-13 17:28:36,783 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 17 treesize of output 11 [2022-12-13 17:28:36,943 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 17 treesize of output 11 [2022-12-13 17:28:38,492 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 17 treesize of output 11