./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test3-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc0bb-1e90-4cd8-81b1-8e69c03ce36e/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc0bb-1e90-4cd8-81b1-8e69c03ce36e/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc0bb-1e90-4cd8-81b1-8e69c03ce36e/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc0bb-1e90-4cd8-81b1-8e69c03ce36e/bin/uautomizer-J5u9QxTXDZ/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test3-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc0bb-1e90-4cd8-81b1-8e69c03ce36e/bin/uautomizer-J5u9QxTXDZ/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc0bb-1e90-4cd8-81b1-8e69c03ce36e/bin/uautomizer-J5u9QxTXDZ --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 6560568361eacef24363f4e5a58f5226b4c8bc2851167e042d4f8ce61eb0aa48 --- 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-dbf71c6-m [2022-10-17 10:56:48,267 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:56:48,270 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:56:48,307 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:56:48,308 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:56:48,309 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:56:48,311 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:56:48,314 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:56:48,316 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:56:48,317 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:56:48,318 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:56:48,320 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:56:48,321 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:56:48,322 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:56:48,324 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:56:48,329 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:56:48,330 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:56:48,332 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:56:48,340 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:56:48,343 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:56:48,345 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:56:48,348 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:56:48,350 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:56:48,353 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:56:48,359 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:56:48,363 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:56:48,363 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:56:48,365 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:56:48,366 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:56:48,367 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:56:48,368 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:56:48,369 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:56:48,371 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:56:48,372 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:56:48,374 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:56:48,374 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:56:48,375 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:56:48,375 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:56:48,376 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:56:48,377 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:56:48,377 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:56:48,378 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc0bb-1e90-4cd8-81b1-8e69c03ce36e/bin/uautomizer-J5u9QxTXDZ/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-10-17 10:56:48,427 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:56:48,427 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:56:48,428 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:56:48,428 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:56:48,429 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 10:56:48,429 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 10:56:48,430 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:56:48,430 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:56:48,430 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:56:48,430 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:56:48,432 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 10:56:48,432 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-17 10:56:48,432 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:56:48,432 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 10:56:48,433 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:56:48,433 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-17 10:56:48,433 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-17 10:56:48,433 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-17 10:56:48,434 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 10:56:48,434 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-17 10:56:48,434 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 10:56:48,434 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:56:48,435 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:56:48,435 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:56:48,435 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 10:56:48,435 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:56:48,436 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:56:48,436 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 10:56:48,436 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:56:48,436 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 10:56:48,437 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc0bb-1e90-4cd8-81b1-8e69c03ce36e/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc0bb-1e90-4cd8-81b1-8e69c03ce36e/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6560568361eacef24363f4e5a58f5226b4c8bc2851167e042d4f8ce61eb0aa48 [2022-10-17 10:56:48,752 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:56:48,794 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:56:48,797 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:56:48,798 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:56:48,799 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:56:48,800 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc0bb-1e90-4cd8-81b1-8e69c03ce36e/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test3-2.i [2022-10-17 10:56:48,865 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc0bb-1e90-4cd8-81b1-8e69c03ce36e/bin/uautomizer-J5u9QxTXDZ/data/d5e16d3e8/142af84d79ab4f1195f908748f83acbd/FLAG50b1ee995 [2022-10-17 10:56:49,509 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:56:49,510 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc0bb-1e90-4cd8-81b1-8e69c03ce36e/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test3-2.i [2022-10-17 10:56:49,546 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc0bb-1e90-4cd8-81b1-8e69c03ce36e/bin/uautomizer-J5u9QxTXDZ/data/d5e16d3e8/142af84d79ab4f1195f908748f83acbd/FLAG50b1ee995 [2022-10-17 10:56:49,737 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc0bb-1e90-4cd8-81b1-8e69c03ce36e/bin/uautomizer-J5u9QxTXDZ/data/d5e16d3e8/142af84d79ab4f1195f908748f83acbd [2022-10-17 10:56:49,739 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:56:49,741 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:56:49,743 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:56:49,743 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:56:49,746 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:56:49,747 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:56:49" (1/1) ... [2022-10-17 10:56:49,748 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@affd9c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:56:49, skipping insertion in model container [2022-10-17 10:56:49,749 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:56:49" (1/1) ... [2022-10-17 10:56:49,757 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:56:49,808 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:56:50,210 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc0bb-1e90-4cd8-81b1-8e69c03ce36e/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test3-2.i[33021,33034] [2022-10-17 10:56:50,303 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc0bb-1e90-4cd8-81b1-8e69c03ce36e/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test3-2.i[44590,44603] [2022-10-17 10:56:50,323 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:56:50,339 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) [2022-10-17 10:56:50,340 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@12d52b5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:56:50, skipping insertion in model container [2022-10-17 10:56:50,340 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:56:50,340 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2022-10-17 10:56:50,342 INFO L158 Benchmark]: Toolchain (without parser) took 599.75ms. Allocated memory is still 100.7MB. Free memory was 63.9MB in the beginning and 64.1MB in the end (delta: -157.3kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-10-17 10:56:50,343 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 100.7MB. Free memory was 72.4MB in the beginning and 72.3MB in the end (delta: 29.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 10:56:50,344 INFO L158 Benchmark]: CACSL2BoogieTranslator took 597.29ms. Allocated memory is still 100.7MB. Free memory was 63.7MB in the beginning and 64.1MB in the end (delta: -349.1kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-10-17 10:56:50,345 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 100.7MB. Free memory was 72.4MB in the beginning and 72.3MB in the end (delta: 29.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 597.29ms. Allocated memory is still 100.7MB. Free memory was 63.7MB in the beginning and 64.1MB in the end (delta: -349.1kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 736]: 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/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc0bb-1e90-4cd8-81b1-8e69c03ce36e/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc0bb-1e90-4cd8-81b1-8e69c03ce36e/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc0bb-1e90-4cd8-81b1-8e69c03ce36e/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc0bb-1e90-4cd8-81b1-8e69c03ce36e/bin/uautomizer-J5u9QxTXDZ/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test3-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc0bb-1e90-4cd8-81b1-8e69c03ce36e/bin/uautomizer-J5u9QxTXDZ/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc0bb-1e90-4cd8-81b1-8e69c03ce36e/bin/uautomizer-J5u9QxTXDZ --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 6560568361eacef24363f4e5a58f5226b4c8bc2851167e042d4f8ce61eb0aa48 --- 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-dbf71c6-m [2022-10-17 10:56:52,531 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:56:52,533 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:56:52,580 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:56:52,580 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:56:52,585 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:56:52,587 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:56:52,594 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:56:52,600 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:56:52,605 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:56:52,607 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:56:52,609 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:56:52,610 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:56:52,613 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:56:52,614 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:56:52,616 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:56:52,618 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:56:52,619 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:56:52,621 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:56:52,630 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:56:52,632 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:56:52,634 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:56:52,637 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:56:52,639 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:56:52,649 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:56:52,649 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:56:52,650 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:56:52,652 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:56:52,652 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:56:52,654 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:56:52,654 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:56:52,655 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:56:52,657 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:56:52,658 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:56:52,659 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:56:52,659 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:56:52,660 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:56:52,661 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:56:52,661 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:56:52,663 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:56:52,664 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:56:52,665 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc0bb-1e90-4cd8-81b1-8e69c03ce36e/bin/uautomizer-J5u9QxTXDZ/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2022-10-17 10:56:52,709 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:56:52,709 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:56:52,710 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:56:52,711 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:56:52,712 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 10:56:52,712 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 10:56:52,713 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:56:52,714 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:56:52,714 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:56:52,714 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:56:52,715 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 10:56:52,715 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-17 10:56:52,716 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:56:52,716 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 10:56:52,716 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:56:52,716 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-17 10:56:52,717 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-17 10:56:52,717 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-17 10:56:52,717 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 10:56:52,717 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-17 10:56:52,718 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-10-17 10:56:52,718 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-10-17 10:56:52,718 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 10:56:52,718 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:56:52,718 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:56:52,719 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:56:52,719 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 10:56:52,719 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:56:52,720 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:56:52,720 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 10:56:52,720 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-10-17 10:56:52,720 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-10-17 10:56:52,721 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-10-17 10:56:52,721 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc0bb-1e90-4cd8-81b1-8e69c03ce36e/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc0bb-1e90-4cd8-81b1-8e69c03ce36e/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6560568361eacef24363f4e5a58f5226b4c8bc2851167e042d4f8ce61eb0aa48 [2022-10-17 10:56:53,131 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:56:53,162 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:56:53,165 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:56:53,167 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:56:53,169 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:56:53,171 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc0bb-1e90-4cd8-81b1-8e69c03ce36e/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test3-2.i [2022-10-17 10:56:53,235 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc0bb-1e90-4cd8-81b1-8e69c03ce36e/bin/uautomizer-J5u9QxTXDZ/data/86404f77d/a960e2bc256942128dbf0893fac9adaf/FLAG4affeb2ea [2022-10-17 10:56:53,816 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:56:53,817 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc0bb-1e90-4cd8-81b1-8e69c03ce36e/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test3-2.i [2022-10-17 10:56:53,846 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc0bb-1e90-4cd8-81b1-8e69c03ce36e/bin/uautomizer-J5u9QxTXDZ/data/86404f77d/a960e2bc256942128dbf0893fac9adaf/FLAG4affeb2ea [2022-10-17 10:56:54,242 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc0bb-1e90-4cd8-81b1-8e69c03ce36e/bin/uautomizer-J5u9QxTXDZ/data/86404f77d/a960e2bc256942128dbf0893fac9adaf [2022-10-17 10:56:54,245 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:56:54,248 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:56:54,253 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:56:54,253 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:56:54,257 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:56:54,257 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:56:54" (1/1) ... [2022-10-17 10:56:54,258 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15c8df5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:56:54, skipping insertion in model container [2022-10-17 10:56:54,259 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:56:54" (1/1) ... [2022-10-17 10:56:54,266 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:56:54,348 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:56:54,805 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc0bb-1e90-4cd8-81b1-8e69c03ce36e/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test3-2.i[33021,33034] [2022-10-17 10:56:54,899 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc0bb-1e90-4cd8-81b1-8e69c03ce36e/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test3-2.i[44590,44603] [2022-10-17 10:56:54,918 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:56:54,942 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-10-17 10:56:54,957 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:56:54,993 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc0bb-1e90-4cd8-81b1-8e69c03ce36e/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test3-2.i[33021,33034] [2022-10-17 10:56:55,107 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc0bb-1e90-4cd8-81b1-8e69c03ce36e/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test3-2.i[44590,44603] [2022-10-17 10:56:55,117 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:56:55,122 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:56:55,172 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc0bb-1e90-4cd8-81b1-8e69c03ce36e/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test3-2.i[33021,33034] [2022-10-17 10:56:55,235 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc0bb-1e90-4cd8-81b1-8e69c03ce36e/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test3-2.i[44590,44603] [2022-10-17 10:56:55,256 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:56:55,325 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:56:55,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:56:55 WrapperNode [2022-10-17 10:56:55,325 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:56:55,327 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:56:55,327 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:56:55,327 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:56:55,334 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:56:55" (1/1) ... [2022-10-17 10:56:55,374 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:56:55" (1/1) ... [2022-10-17 10:56:55,444 INFO L138 Inliner]: procedures = 180, calls = 336, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1205 [2022-10-17 10:56:55,444 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:56:55,445 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:56:55,445 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:56:55,446 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:56:55,455 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:56:55" (1/1) ... [2022-10-17 10:56:55,455 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:56:55" (1/1) ... [2022-10-17 10:56:55,467 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:56:55" (1/1) ... [2022-10-17 10:56:55,468 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:56:55" (1/1) ... [2022-10-17 10:56:55,546 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:56:55" (1/1) ... [2022-10-17 10:56:55,575 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:56:55" (1/1) ... [2022-10-17 10:56:55,585 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:56:55" (1/1) ... [2022-10-17 10:56:55,591 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:56:55" (1/1) ... [2022-10-17 10:56:55,609 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:56:55,610 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:56:55,610 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:56:55,611 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:56:55,611 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:56:55" (1/1) ... [2022-10-17 10:56:55,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:56:55,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc0bb-1e90-4cd8-81b1-8e69c03ce36e/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:56:55,659 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc0bb-1e90-4cd8-81b1-8e69c03ce36e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 10:56:55,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc0bb-1e90-4cd8-81b1-8e69c03ce36e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 10:56:55,704 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-10-17 10:56:55,704 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-10-17 10:56:55,704 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-10-17 10:56:55,705 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-10-17 10:56:55,705 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-10-17 10:56:55,705 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-10-17 10:56:55,705 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-17 10:56:55,705 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 10:56:55,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-17 10:56:55,706 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 10:56:55,706 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-10-17 10:56:55,706 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-17 10:56:55,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 10:56:55,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-10-17 10:56:55,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-10-17 10:56:55,707 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:56:55,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:56:56,023 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:56:56,025 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:56:56,038 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-10-17 10:57:01,470 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:57:01,484 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:57:01,485 INFO L300 CfgBuilder]: Removed 72 assume(true) statements. [2022-10-17 10:57:01,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:57:01 BoogieIcfgContainer [2022-10-17 10:57:01,489 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:57:01,491 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 10:57:01,492 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 10:57:01,494 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 10:57:01,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 10:56:54" (1/3) ... [2022-10-17 10:57:01,496 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23a4e631 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:57:01, skipping insertion in model container [2022-10-17 10:57:01,496 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:56:55" (2/3) ... [2022-10-17 10:57:01,496 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23a4e631 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:57:01, skipping insertion in model container [2022-10-17 10:57:01,496 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:57:01" (3/3) ... [2022-10-17 10:57:01,498 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test3-2.i [2022-10-17 10:57:01,516 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 10:57:01,517 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 639 error locations. [2022-10-17 10:57:01,582 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 10:57:01,589 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@721d2b5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 10:57:01,589 INFO L358 AbstractCegarLoop]: Starting to check reachability of 639 error locations. [2022-10-17 10:57:01,597 INFO L276 IsEmpty]: Start isEmpty. Operand has 1271 states, 624 states have (on average 2.2580128205128207) internal successors, (1409), 1265 states have internal predecessors, (1409), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-10-17 10:57:01,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-10-17 10:57:01,603 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:57:01,604 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-10-17 10:57:01,605 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 636 more)] === [2022-10-17 10:57:01,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:57:01,610 INFO L85 PathProgramCache]: Analyzing trace with hash 38794, now seen corresponding path program 1 times [2022-10-17 10:57:01,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-10-17 10:57:01,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [695261487] [2022-10-17 10:57:01,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:57:01,623 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-10-17 10:57:01,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc0bb-1e90-4cd8-81b1-8e69c03ce36e/bin/uautomizer-J5u9QxTXDZ/mathsat [2022-10-17 10:57:01,629 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc0bb-1e90-4cd8-81b1-8e69c03ce36e/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-10-17 10:57:01,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc0bb-1e90-4cd8-81b1-8e69c03ce36e/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-10-17 10:57:01,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:57:01,778 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-17 10:57:01,784 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:57:01,856 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2022-10-17 10:57:01,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:57:01,890 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 10:57:01,891 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-10-17 10:57:01,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [695261487] [2022-10-17 10:57:01,891 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [695261487] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:57:01,892 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:57:01,892 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 10:57:01,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598081192] [2022-10-17 10:57:01,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:57:01,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 10:57:01,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-10-17 10:57:01,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:57:01,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:57:01,947 INFO L87 Difference]: Start difference. First operand has 1271 states, 624 states have (on average 2.2580128205128207) internal successors, (1409), 1265 states have internal predecessors, (1409), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:57:04,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:57:04,407 INFO L93 Difference]: Finished difference Result 1443 states and 1528 transitions. [2022-10-17 10:57:04,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:57:04,410 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-10-17 10:57:04,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:57:04,446 INFO L225 Difference]: With dead ends: 1443 [2022-10-17 10:57:04,446 INFO L226 Difference]: Without dead ends: 1441 [2022-10-17 10:57:04,447 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:57:04,453 INFO L413 NwaCegarLoop]: 769 mSDtfsCounter, 1181 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 744 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1189 SdHoareTripleChecker+Valid, 928 SdHoareTripleChecker+Invalid, 760 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 744 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-10-17 10:57:04,455 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1189 Valid, 928 Invalid, 760 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 744 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-10-17 10:57:04,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1441 states. [2022-10-17 10:57:04,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1441 to 1256. [2022-10-17 10:57:04,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1256 states, 624 states have (on average 2.110576923076923) internal successors, (1317), 1250 states have internal predecessors, (1317), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-10-17 10:57:04,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1256 states to 1256 states and 1333 transitions. [2022-10-17 10:57:04,573 INFO L78 Accepts]: Start accepts. Automaton has 1256 states and 1333 transitions. Word has length 3 [2022-10-17 10:57:04,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:57:04,574 INFO L495 AbstractCegarLoop]: Abstraction has 1256 states and 1333 transitions. [2022-10-17 10:57:04,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:57:04,574 INFO L276 IsEmpty]: Start isEmpty. Operand 1256 states and 1333 transitions. [2022-10-17 10:57:04,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-10-17 10:57:04,575 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:57:04,575 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-10-17 10:57:04,585 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc0bb-1e90-4cd8-81b1-8e69c03ce36e/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-10-17 10:57:04,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc0bb-1e90-4cd8-81b1-8e69c03ce36e/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 [2022-10-17 10:57:04,777 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 636 more)] === [2022-10-17 10:57:04,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:57:04,778 INFO L85 PathProgramCache]: Analyzing trace with hash 38795, now seen corresponding path program 1 times [2022-10-17 10:57:04,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-10-17 10:57:04,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [733743674] [2022-10-17 10:57:04,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:57:04,779 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-10-17 10:57:04,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc0bb-1e90-4cd8-81b1-8e69c03ce36e/bin/uautomizer-J5u9QxTXDZ/mathsat [2022-10-17 10:57:04,780 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc0bb-1e90-4cd8-81b1-8e69c03ce36e/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-10-17 10:57:04,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc0bb-1e90-4cd8-81b1-8e69c03ce36e/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-10-17 10:57:04,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:57:04,918 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-17 10:57:04,921 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:57:04,937 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-10-17 10:57:04,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:57:04,949 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 10:57:04,950 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-10-17 10:57:04,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [733743674] [2022-10-17 10:57:04,950 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [733743674] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:57:04,950 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:57:04,951 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 10:57:04,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336206512] [2022-10-17 10:57:04,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:57:04,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 10:57:04,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-10-17 10:57:04,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:57:04,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:57:04,953 INFO L87 Difference]: Start difference. First operand 1256 states and 1333 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:57:08,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:57:08,736 INFO L93 Difference]: Finished difference Result 1865 states and 1993 transitions. [2022-10-17 10:57:08,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:57:08,736 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-10-17 10:57:08,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:57:08,747 INFO L225 Difference]: With dead ends: 1865 [2022-10-17 10:57:08,747 INFO L226 Difference]: Without dead ends: 1865 [2022-10-17 10:57:08,748 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:57:08,749 INFO L413 NwaCegarLoop]: 1047 mSDtfsCounter, 650 mSDsluCounter, 703 mSDsCounter, 0 mSdLazyCounter, 905 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 655 SdHoareTripleChecker+Valid, 1750 SdHoareTripleChecker+Invalid, 910 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 905 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-10-17 10:57:08,750 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [655 Valid, 1750 Invalid, 910 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 905 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-10-17 10:57:08,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1865 states. [2022-10-17 10:57:08,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1865 to 1456. [2022-10-17 10:57:08,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1456 states, 825 states have (on average 2.0957575757575757) internal successors, (1729), 1450 states have internal predecessors, (1729), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-10-17 10:57:08,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1456 states to 1456 states and 1745 transitions. [2022-10-17 10:57:08,794 INFO L78 Accepts]: Start accepts. Automaton has 1456 states and 1745 transitions. Word has length 3 [2022-10-17 10:57:08,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:57:08,794 INFO L495 AbstractCegarLoop]: Abstraction has 1456 states and 1745 transitions. [2022-10-17 10:57:08,795 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:57:08,795 INFO L276 IsEmpty]: Start isEmpty. Operand 1456 states and 1745 transitions. [2022-10-17 10:57:08,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-17 10:57:08,795 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:57:08,796 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:57:08,809 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc0bb-1e90-4cd8-81b1-8e69c03ce36e/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-10-17 10:57:09,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc0bb-1e90-4cd8-81b1-8e69c03ce36e/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 [2022-10-17 10:57:09,005 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 636 more)] === [2022-10-17 10:57:09,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:57:09,006 INFO L85 PathProgramCache]: Analyzing trace with hash 1466973012, now seen corresponding path program 1 times [2022-10-17 10:57:09,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-10-17 10:57:09,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1515147381] [2022-10-17 10:57:09,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:57:09,007 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-10-17 10:57:09,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc0bb-1e90-4cd8-81b1-8e69c03ce36e/bin/uautomizer-J5u9QxTXDZ/mathsat [2022-10-17 10:57:09,009 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc0bb-1e90-4cd8-81b1-8e69c03ce36e/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-10-17 10:57:09,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc0bb-1e90-4cd8-81b1-8e69c03ce36e/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-10-17 10:57:09,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:57:09,138 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-17 10:57:09,142 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:57:09,165 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-10-17 10:57:09,172 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2022-10-17 10:57:09,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 10:57:09,269 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-10-17 10:57:09,288 INFO L356 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-10-17 10:57:09,289 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2022-10-17 10:57:09,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:57:09,315 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 10:57:09,315 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-10-17 10:57:09,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1515147381] [2022-10-17 10:57:09,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1515147381] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:57:09,315 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:57:09,316 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 10:57:09,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198535542] [2022-10-17 10:57:09,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:57:09,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-17 10:57:09,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-10-17 10:57:09,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 10:57:09,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-17 10:57:09,320 INFO L87 Difference]: Start difference. First operand 1456 states and 1745 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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) [2022-10-17 10:57:13,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:57:13,103 INFO L93 Difference]: Finished difference Result 1634 states and 1934 transitions. [2022-10-17 10:57:13,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-17 10:57:13,106 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-10-17 10:57:13,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:57:13,115 INFO L225 Difference]: With dead ends: 1634 [2022-10-17 10:57:13,115 INFO L226 Difference]: Without dead ends: 1634 [2022-10-17 10:57:13,115 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-17 10:57:13,117 INFO L413 NwaCegarLoop]: 445 mSDtfsCounter, 2629 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 1120 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2637 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 1153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-10-17 10:57:13,117 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2637 Valid, 535 Invalid, 1153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1120 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-10-17 10:57:13,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1634 states. [2022-10-17 10:57:13,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1634 to 1245. [2022-10-17 10:57:13,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1245 states, 624 states have (on average 2.0913461538461537) internal successors, (1305), 1239 states have internal predecessors, (1305), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-10-17 10:57:13,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1245 states to 1245 states and 1321 transitions. [2022-10-17 10:57:13,152 INFO L78 Accepts]: Start accepts. Automaton has 1245 states and 1321 transitions. Word has length 7 [2022-10-17 10:57:13,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:57:13,153 INFO L495 AbstractCegarLoop]: Abstraction has 1245 states and 1321 transitions. [2022-10-17 10:57:13,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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) [2022-10-17 10:57:13,153 INFO L276 IsEmpty]: Start isEmpty. Operand 1245 states and 1321 transitions. [2022-10-17 10:57:13,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-17 10:57:13,154 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:57:13,154 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:57:13,169 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc0bb-1e90-4cd8-81b1-8e69c03ce36e/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-10-17 10:57:13,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc0bb-1e90-4cd8-81b1-8e69c03ce36e/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 [2022-10-17 10:57:13,366 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 636 more)] === [2022-10-17 10:57:13,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:57:13,366 INFO L85 PathProgramCache]: Analyzing trace with hash -1768476910, now seen corresponding path program 1 times [2022-10-17 10:57:13,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-10-17 10:57:13,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1187950638] [2022-10-17 10:57:13,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:57:13,367 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-10-17 10:57:13,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc0bb-1e90-4cd8-81b1-8e69c03ce36e/bin/uautomizer-J5u9QxTXDZ/mathsat [2022-10-17 10:57:13,368 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc0bb-1e90-4cd8-81b1-8e69c03ce36e/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-10-17 10:57:13,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc0bb-1e90-4cd8-81b1-8e69c03ce36e/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-10-17 10:57:13,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:57:13,519 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-17 10:57:13,521 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:57:13,528 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2022-10-17 10:57:13,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:57:13,537 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 10:57:13,538 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-10-17 10:57:13,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1187950638] [2022-10-17 10:57:13,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1187950638] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:57:13,538 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:57:13,538 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 10:57:13,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811864546] [2022-10-17 10:57:13,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:57:13,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 10:57:13,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-10-17 10:57:13,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:57:13,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:57:13,540 INFO L87 Difference]: Start difference. First operand 1245 states and 1321 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2022-10-17 10:57:15,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:57:15,760 INFO L93 Difference]: Finished difference Result 1572 states and 1677 transitions. [2022-10-17 10:57:15,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:57:15,761 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-10-17 10:57:15,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:57:15,770 INFO L225 Difference]: With dead ends: 1572 [2022-10-17 10:57:15,771 INFO L226 Difference]: Without dead ends: 1572 [2022-10-17 10:57:15,771 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:57:15,772 INFO L413 NwaCegarLoop]: 1163 mSDtfsCounter, 990 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 829 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 998 SdHoareTripleChecker+Valid, 1509 SdHoareTripleChecker+Invalid, 883 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 829 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-10-17 10:57:15,773 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [998 Valid, 1509 Invalid, 883 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 829 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-10-17 10:57:15,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1572 states. [2022-10-17 10:57:15,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1572 to 1196. [2022-10-17 10:57:15,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1196 states, 624 states have (on average 2.0128205128205128) internal successors, (1256), 1190 states have internal predecessors, (1256), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-10-17 10:57:15,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1196 states to 1196 states and 1272 transitions. [2022-10-17 10:57:15,804 INFO L78 Accepts]: Start accepts. Automaton has 1196 states and 1272 transitions. Word has length 8 [2022-10-17 10:57:15,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:57:15,805 INFO L495 AbstractCegarLoop]: Abstraction has 1196 states and 1272 transitions. [2022-10-17 10:57:15,805 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2022-10-17 10:57:15,805 INFO L276 IsEmpty]: Start isEmpty. Operand 1196 states and 1272 transitions. [2022-10-17 10:57:15,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-17 10:57:15,806 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:57:15,806 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:57:15,817 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc0bb-1e90-4cd8-81b1-8e69c03ce36e/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2022-10-17 10:57:16,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc0bb-1e90-4cd8-81b1-8e69c03ce36e/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 [2022-10-17 10:57:16,017 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 636 more)] === [2022-10-17 10:57:16,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:57:16,018 INFO L85 PathProgramCache]: Analyzing trace with hash -1768476909, now seen corresponding path program 1 times [2022-10-17 10:57:16,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-10-17 10:57:16,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [870876279] [2022-10-17 10:57:16,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:57:16,019 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-10-17 10:57:16,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc0bb-1e90-4cd8-81b1-8e69c03ce36e/bin/uautomizer-J5u9QxTXDZ/mathsat [2022-10-17 10:57:16,020 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc0bb-1e90-4cd8-81b1-8e69c03ce36e/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-10-17 10:57:16,023 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc0bb-1e90-4cd8-81b1-8e69c03ce36e/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-10-17 10:57:16,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:57:16,162 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-17 10:57:16,165 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:57:16,179 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-10-17 10:57:16,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:57:16,209 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 10:57:16,209 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-10-17 10:57:16,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [870876279] [2022-10-17 10:57:16,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [870876279] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:57:16,209 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:57:16,210 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 10:57:16,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881493470] [2022-10-17 10:57:16,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:57:16,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 10:57:16,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-10-17 10:57:16,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:57:16,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:57:16,211 INFO L87 Difference]: Start difference. First operand 1196 states and 1272 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2022-10-17 10:57:19,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:57:19,274 INFO L93 Difference]: Finished difference Result 1650 states and 1758 transitions. [2022-10-17 10:57:19,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:57:19,275 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-10-17 10:57:19,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:57:19,283 INFO L225 Difference]: With dead ends: 1650 [2022-10-17 10:57:19,283 INFO L226 Difference]: Without dead ends: 1650 [2022-10-17 10:57:19,283 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:57:19,284 INFO L413 NwaCegarLoop]: 1372 mSDtfsCounter, 673 mSDsluCounter, 542 mSDsCounter, 0 mSdLazyCounter, 833 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 673 SdHoareTripleChecker+Valid, 1914 SdHoareTripleChecker+Invalid, 845 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 833 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-10-17 10:57:19,285 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [673 Valid, 1914 Invalid, 845 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 833 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-10-17 10:57:19,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1650 states. [2022-10-17 10:57:19,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1650 to 1218. [2022-10-17 10:57:19,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1218 states, 656 states have (on average 2.0) internal successors, (1312), 1212 states have internal predecessors, (1312), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-10-17 10:57:19,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1218 states to 1218 states and 1328 transitions. [2022-10-17 10:57:19,321 INFO L78 Accepts]: Start accepts. Automaton has 1218 states and 1328 transitions. Word has length 8 [2022-10-17 10:57:19,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:57:19,321 INFO L495 AbstractCegarLoop]: Abstraction has 1218 states and 1328 transitions. [2022-10-17 10:57:19,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2022-10-17 10:57:19,322 INFO L276 IsEmpty]: Start isEmpty. Operand 1218 states and 1328 transitions. [2022-10-17 10:57:19,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-17 10:57:19,322 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:57:19,323 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:57:19,338 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc0bb-1e90-4cd8-81b1-8e69c03ce36e/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-10-17 10:57:19,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc0bb-1e90-4cd8-81b1-8e69c03ce36e/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 [2022-10-17 10:57:19,534 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr526REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 636 more)] === [2022-10-17 10:57:19,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:57:19,535 INFO L85 PathProgramCache]: Analyzing trace with hash 871377621, now seen corresponding path program 1 times [2022-10-17 10:57:19,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-10-17 10:57:19,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [302282651] [2022-10-17 10:57:19,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:57:19,536 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-10-17 10:57:19,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc0bb-1e90-4cd8-81b1-8e69c03ce36e/bin/uautomizer-J5u9QxTXDZ/mathsat [2022-10-17 10:57:19,537 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc0bb-1e90-4cd8-81b1-8e69c03ce36e/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-10-17 10:57:19,538 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc0bb-1e90-4cd8-81b1-8e69c03ce36e/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-10-17 10:57:19,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:57:19,686 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-17 10:57:19,689 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:57:19,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:57:19,790 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 10:57:19,790 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-10-17 10:57:19,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [302282651] [2022-10-17 10:57:19,791 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [302282651] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:57:19,791 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:57:19,791 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 10:57:19,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574460940] [2022-10-17 10:57:19,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:57:19,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-17 10:57:19,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-10-17 10:57:19,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 10:57:19,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-17 10:57:19,793 INFO L87 Difference]: Start difference. First operand 1218 states and 1328 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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) [2022-10-17 10:57:20,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:57:20,801 INFO L93 Difference]: Finished difference Result 1864 states and 2017 transitions. [2022-10-17 10:57:20,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 10:57:20,802 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-10-17 10:57:20,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:57:20,810 INFO L225 Difference]: With dead ends: 1864 [2022-10-17 10:57:20,810 INFO L226 Difference]: Without dead ends: 1864 [2022-10-17 10:57:20,811 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:57:20,812 INFO L413 NwaCegarLoop]: 1392 mSDtfsCounter, 753 mSDsluCounter, 2347 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 755 SdHoareTripleChecker+Valid, 3739 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-10-17 10:57:20,812 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [755 Valid, 3739 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-10-17 10:57:20,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1864 states. [2022-10-17 10:57:20,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1864 to 1462. [2022-10-17 10:57:20,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1462 states, 900 states have (on average 1.9677777777777778) internal successors, (1771), 1456 states have internal predecessors, (1771), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-10-17 10:57:20,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1462 states to 1462 states and 1787 transitions. [2022-10-17 10:57:20,853 INFO L78 Accepts]: Start accepts. Automaton has 1462 states and 1787 transitions. Word has length 11 [2022-10-17 10:57:20,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:57:20,853 INFO L495 AbstractCegarLoop]: Abstraction has 1462 states and 1787 transitions. [2022-10-17 10:57:20,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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) [2022-10-17 10:57:20,854 INFO L276 IsEmpty]: Start isEmpty. Operand 1462 states and 1787 transitions. [2022-10-17 10:57:20,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-17 10:57:20,854 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:57:20,855 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:57:20,872 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc0bb-1e90-4cd8-81b1-8e69c03ce36e/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2022-10-17 10:57:21,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc0bb-1e90-4cd8-81b1-8e69c03ce36e/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 [2022-10-17 10:57:21,073 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr340REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 636 more)] === [2022-10-17 10:57:21,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:57:21,074 INFO L85 PathProgramCache]: Analyzing trace with hash -702153283, now seen corresponding path program 1 times [2022-10-17 10:57:21,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-10-17 10:57:21,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [926520961] [2022-10-17 10:57:21,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:57:21,076 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-10-17 10:57:21,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc0bb-1e90-4cd8-81b1-8e69c03ce36e/bin/uautomizer-J5u9QxTXDZ/mathsat [2022-10-17 10:57:21,077 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc0bb-1e90-4cd8-81b1-8e69c03ce36e/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-10-17 10:57:21,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc0bb-1e90-4cd8-81b1-8e69c03ce36e/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-10-17 10:57:21,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:57:21,231 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-17 10:57:21,233 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:57:21,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:57:21,249 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 10:57:21,252 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-10-17 10:57:21,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [926520961] [2022-10-17 10:57:21,252 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [926520961] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:57:21,253 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:57:21,253 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 10:57:21,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422296733] [2022-10-17 10:57:21,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:57:21,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 10:57:21,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-10-17 10:57:21,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:57:21,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:57:21,256 INFO L87 Difference]: Start difference. First operand 1462 states and 1787 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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) [2022-10-17 10:57:21,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:57:21,294 INFO L93 Difference]: Finished difference Result 1643 states and 1965 transitions. [2022-10-17 10:57:21,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:57:21,295 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-10-17 10:57:21,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:57:21,304 INFO L225 Difference]: With dead ends: 1643 [2022-10-17 10:57:21,304 INFO L226 Difference]: Without dead ends: 1643 [2022-10-17 10:57:21,305 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:57:21,306 INFO L413 NwaCegarLoop]: 1221 mSDtfsCounter, 602 mSDsluCounter, 851 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 607 SdHoareTripleChecker+Valid, 2072 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 10:57:21,306 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [607 Valid, 2072 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:57:21,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1643 states. [2022-10-17 10:57:21,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1643 to 1402. [2022-10-17 10:57:21,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1402 states, 864 states have (on average 1.9502314814814814) internal successors, (1685), 1396 states have internal predecessors, (1685), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-10-17 10:57:21,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1402 states to 1402 states and 1701 transitions. [2022-10-17 10:57:21,346 INFO L78 Accepts]: Start accepts. Automaton has 1402 states and 1701 transitions. Word has length 13 [2022-10-17 10:57:21,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:57:21,347 INFO L495 AbstractCegarLoop]: Abstraction has 1402 states and 1701 transitions. [2022-10-17 10:57:21,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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) [2022-10-17 10:57:21,347 INFO L276 IsEmpty]: Start isEmpty. Operand 1402 states and 1701 transitions. [2022-10-17 10:57:21,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-17 10:57:21,349 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:57:21,349 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:57:21,364 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc0bb-1e90-4cd8-81b1-8e69c03ce36e/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-10-17 10:57:21,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc0bb-1e90-4cd8-81b1-8e69c03ce36e/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 [2022-10-17 10:57:21,560 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr364REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 636 more)] === [2022-10-17 10:57:21,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:57:21,561 INFO L85 PathProgramCache]: Analyzing trace with hash -459414345, now seen corresponding path program 1 times [2022-10-17 10:57:21,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-10-17 10:57:21,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1800663961] [2022-10-17 10:57:21,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:57:21,561 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-10-17 10:57:21,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc0bb-1e90-4cd8-81b1-8e69c03ce36e/bin/uautomizer-J5u9QxTXDZ/mathsat [2022-10-17 10:57:21,562 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc0bb-1e90-4cd8-81b1-8e69c03ce36e/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-10-17 10:57:21,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc0bb-1e90-4cd8-81b1-8e69c03ce36e/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-10-17 10:57:21,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:57:21,709 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-17 10:57:21,712 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:57:21,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:57:21,734 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 10:57:21,734 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-10-17 10:57:21,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1800663961] [2022-10-17 10:57:21,735 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1800663961] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:57:21,735 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:57:21,735 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 10:57:21,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610209408] [2022-10-17 10:57:21,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:57:21,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-17 10:57:21,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-10-17 10:57:21,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 10:57:21,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-17 10:57:21,739 INFO L87 Difference]: Start difference. First operand 1402 states and 1701 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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) [2022-10-17 10:57:21,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:57:21,808 INFO L93 Difference]: Finished difference Result 1615 states and 1909 transitions. [2022-10-17 10:57:21,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-17 10:57:21,808 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-10-17 10:57:21,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:57:21,814 INFO L225 Difference]: With dead ends: 1615 [2022-10-17 10:57:21,814 INFO L226 Difference]: Without dead ends: 1615 [2022-10-17 10:57:21,814 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:57:21,814 INFO L413 NwaCegarLoop]: 1176 mSDtfsCounter, 573 mSDsluCounter, 2020 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 578 SdHoareTripleChecker+Valid, 3196 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 10:57:21,815 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [578 Valid, 3196 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:57:21,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1615 states. [2022-10-17 10:57:21,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1615 to 1372. [2022-10-17 10:57:21,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1372 states, 848 states have (on average 1.9186320754716981) internal successors, (1627), 1366 states have internal predecessors, (1627), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-10-17 10:57:21,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1372 states to 1372 states and 1643 transitions. [2022-10-17 10:57:21,846 INFO L78 Accepts]: Start accepts. Automaton has 1372 states and 1643 transitions. Word has length 15 [2022-10-17 10:57:21,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:57:21,846 INFO L495 AbstractCegarLoop]: Abstraction has 1372 states and 1643 transitions. [2022-10-17 10:57:21,847 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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) [2022-10-17 10:57:21,847 INFO L276 IsEmpty]: Start isEmpty. Operand 1372 states and 1643 transitions. [2022-10-17 10:57:21,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-17 10:57:21,848 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:57:21,848 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:57:21,859 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc0bb-1e90-4cd8-81b1-8e69c03ce36e/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0