./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test5-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 7e70badd Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test5-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G --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 713ae5dee39d08db1e818ebc31454a222c136fde7aad4a26405d3060cfa0eeea --- Real Ultimate output --- This is Ultimate 0.2.1-dev-7e70bad [2021-11-23 13:36:00,454 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 13:36:00,459 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 13:36:00,510 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 13:36:00,511 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 13:36:00,513 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 13:36:00,515 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 13:36:00,518 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 13:36:00,521 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 13:36:00,523 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 13:36:00,525 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 13:36:00,527 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 13:36:00,528 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 13:36:00,530 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 13:36:00,532 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 13:36:00,535 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 13:36:00,536 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 13:36:00,538 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 13:36:00,541 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 13:36:00,545 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 13:36:00,548 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 13:36:00,550 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 13:36:00,552 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 13:36:00,554 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 13:36:00,559 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 13:36:00,560 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 13:36:00,560 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 13:36:00,562 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 13:36:00,563 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 13:36:00,565 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 13:36:00,565 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 13:36:00,567 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 13:36:00,568 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 13:36:00,570 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 13:36:00,571 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 13:36:00,572 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 13:36:00,573 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 13:36:00,574 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 13:36:00,575 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 13:36:00,576 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 13:36:00,577 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 13:36:00,579 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-11-23 13:36:00,624 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 13:36:00,625 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 13:36:00,627 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 13:36:00,627 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 13:36:00,632 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 13:36:00,633 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 13:36:00,633 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 13:36:00,633 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 13:36:00,634 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 13:36:00,636 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 13:36:00,636 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 13:36:00,637 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 13:36:00,637 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 13:36:00,637 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-23 13:36:00,637 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-23 13:36:00,638 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-23 13:36:00,638 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 13:36:00,639 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 13:36:00,640 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 13:36:00,640 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 13:36:00,640 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 13:36:00,641 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 13:36:00,641 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 13:36:00,641 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 13:36:00,642 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 13:36:00,642 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 13:36:00,642 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 13:36:00,643 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 13:36:00,643 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 13:36:00,645 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_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 713ae5dee39d08db1e818ebc31454a222c136fde7aad4a26405d3060cfa0eeea [2021-11-23 13:36:01,000 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 13:36:01,042 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 13:36:01,045 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 13:36:01,047 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 13:36:01,049 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 13:36:01,050 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test5-3.i [2021-11-23 13:36:01,139 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/data/15477ee2a/c0ad508f2a9049988ed446b9d659c7f3/FLAG0095ae24b [2021-11-23 13:36:01,954 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 13:36:01,955 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test5-3.i [2021-11-23 13:36:01,994 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/data/15477ee2a/c0ad508f2a9049988ed446b9d659c7f3/FLAG0095ae24b [2021-11-23 13:36:02,065 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/data/15477ee2a/c0ad508f2a9049988ed446b9d659c7f3 [2021-11-23 13:36:02,069 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 13:36:02,072 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 13:36:02,088 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 13:36:02,088 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 13:36:02,094 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 13:36:02,096 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:36:02" (1/1) ... [2021-11-23 13:36:02,099 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@148f43ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:36:02, skipping insertion in model container [2021-11-23 13:36:02,099 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:36:02" (1/1) ... [2021-11-23 13:36:02,108 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 13:36:02,181 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 13:36:02,730 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_84513014-c7da-4528-bd28-7106eba9d62f/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test5-3.i[33021,33034] [2021-11-23 13:36:02,985 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_84513014-c7da-4528-bd28-7106eba9d62f/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test5-3.i[49681,49694] [2021-11-23 13:36:03,038 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 13:36:03,050 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-23 13:36:03,051 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@203278a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:36:03, skipping insertion in model container [2021-11-23 13:36:03,051 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 13:36:03,052 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-23 13:36:03,054 INFO L158 Benchmark]: Toolchain (without parser) took 980.94ms. Allocated memory is still 115.3MB. Free memory was 82.7MB in the beginning and 75.2MB in the end (delta: 7.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 13:36:03,055 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 115.3MB. Free memory is still 70.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 13:36:03,057 INFO L158 Benchmark]: CACSL2BoogieTranslator took 964.13ms. Allocated memory is still 115.3MB. Free memory was 82.4MB in the beginning and 75.6MB in the end (delta: 6.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 13:36:03,059 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 115.3MB. Free memory is still 70.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 964.13ms. Allocated memory is still 115.3MB. Free memory was 82.4MB in the beginning and 75.6MB in the end (delta: 6.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 737]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- 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_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test5-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G --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 713ae5dee39d08db1e818ebc31454a222c136fde7aad4a26405d3060cfa0eeea --- Real Ultimate output --- This is Ultimate 0.2.1-dev-7e70bad [2021-11-23 13:36:05,886 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 13:36:05,889 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 13:36:05,956 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 13:36:05,957 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 13:36:05,958 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 13:36:05,961 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 13:36:05,964 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 13:36:05,967 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 13:36:05,969 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 13:36:05,970 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 13:36:05,972 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 13:36:05,973 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 13:36:05,975 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 13:36:05,977 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 13:36:05,979 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 13:36:05,981 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 13:36:05,983 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 13:36:05,986 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 13:36:05,990 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 13:36:05,993 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 13:36:05,995 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 13:36:05,997 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 13:36:05,998 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 13:36:06,005 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 13:36:06,011 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 13:36:06,012 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 13:36:06,013 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 13:36:06,014 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 13:36:06,016 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 13:36:06,016 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 13:36:06,017 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 13:36:06,018 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 13:36:06,019 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 13:36:06,021 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 13:36:06,021 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 13:36:06,022 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 13:36:06,022 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 13:36:06,023 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 13:36:06,024 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 13:36:06,025 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 13:36:06,028 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-11-23 13:36:06,087 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 13:36:06,088 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 13:36:06,088 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 13:36:06,089 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 13:36:06,091 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 13:36:06,092 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 13:36:06,092 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 13:36:06,093 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 13:36:06,093 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 13:36:06,093 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 13:36:06,094 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 13:36:06,095 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 13:36:06,095 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 13:36:06,095 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-23 13:36:06,096 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-23 13:36:06,096 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-23 13:36:06,096 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 13:36:06,097 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 13:36:06,097 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 13:36:06,097 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 13:36:06,097 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 13:36:06,098 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 13:36:06,098 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 13:36:06,098 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 13:36:06,099 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 13:36:06,099 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 13:36:06,099 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 13:36:06,100 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 13:36:06,100 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-23 13:36:06,100 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 13:36:06,100 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 13:36:06,101 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 13:36:06,101 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_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 713ae5dee39d08db1e818ebc31454a222c136fde7aad4a26405d3060cfa0eeea [2021-11-23 13:36:06,561 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 13:36:06,598 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 13:36:06,602 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 13:36:06,605 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 13:36:06,605 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 13:36:06,608 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test5-3.i [2021-11-23 13:36:06,699 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/data/76a497927/d2490eb0fc35447c8dfeaf18575b692c/FLAG95d572c5f [2021-11-23 13:36:07,697 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 13:36:07,698 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test5-3.i [2021-11-23 13:36:07,725 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/data/76a497927/d2490eb0fc35447c8dfeaf18575b692c/FLAG95d572c5f [2021-11-23 13:36:07,759 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/data/76a497927/d2490eb0fc35447c8dfeaf18575b692c [2021-11-23 13:36:07,762 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 13:36:07,764 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 13:36:07,766 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 13:36:07,766 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 13:36:07,771 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 13:36:07,772 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:36:07" (1/1) ... [2021-11-23 13:36:07,773 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@612e0ee5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:36:07, skipping insertion in model container [2021-11-23 13:36:07,774 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:36:07" (1/1) ... [2021-11-23 13:36:07,783 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 13:36:07,876 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 13:36:08,440 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_84513014-c7da-4528-bd28-7106eba9d62f/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test5-3.i[33021,33034] [2021-11-23 13:36:08,704 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_84513014-c7da-4528-bd28-7106eba9d62f/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test5-3.i[49681,49694] [2021-11-23 13:36:08,777 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 13:36:08,803 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-23 13:36:08,824 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 13:36:08,849 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_84513014-c7da-4528-bd28-7106eba9d62f/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test5-3.i[33021,33034] [2021-11-23 13:36:08,995 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_84513014-c7da-4528-bd28-7106eba9d62f/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test5-3.i[49681,49694] [2021-11-23 13:36:09,021 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 13:36:09,028 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 13:36:09,073 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_84513014-c7da-4528-bd28-7106eba9d62f/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test5-3.i[33021,33034] [2021-11-23 13:36:09,203 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_84513014-c7da-4528-bd28-7106eba9d62f/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test5-3.i[49681,49694] [2021-11-23 13:36:09,217 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 13:36:09,297 INFO L208 MainTranslator]: Completed translation [2021-11-23 13:36:09,298 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:36:09 WrapperNode [2021-11-23 13:36:09,298 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 13:36:09,300 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 13:36:09,300 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 13:36:09,300 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 13:36:09,309 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:36:09" (1/1) ... [2021-11-23 13:36:09,406 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:36:09" (1/1) ... [2021-11-23 13:36:09,550 INFO L137 Inliner]: procedures = 180, calls = 487, calls flagged for inlining = 14, calls inlined = 14, statements flattened = 1766 [2021-11-23 13:36:09,551 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 13:36:09,552 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 13:36:09,552 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 13:36:09,552 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 13:36:09,563 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:36:09" (1/1) ... [2021-11-23 13:36:09,563 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:36:09" (1/1) ... [2021-11-23 13:36:09,581 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:36:09" (1/1) ... [2021-11-23 13:36:09,581 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:36:09" (1/1) ... [2021-11-23 13:36:09,727 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:36:09" (1/1) ... [2021-11-23 13:36:09,764 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:36:09" (1/1) ... [2021-11-23 13:36:09,784 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:36:09" (1/1) ... [2021-11-23 13:36:09,826 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 13:36:09,829 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 13:36:09,831 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 13:36:09,831 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 13:36:09,832 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:36:09" (1/1) ... [2021-11-23 13:36:09,841 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 13:36:09,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:36:09,873 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 13:36:09,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 13:36:09,950 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-23 13:36:09,951 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-23 13:36:09,951 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 13:36:09,951 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 13:36:09,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 13:36:09,952 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 13:36:09,952 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-23 13:36:09,952 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 13:36:09,952 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 13:36:09,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-23 13:36:09,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 13:36:09,953 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 13:36:09,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 13:36:10,418 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 13:36:10,426 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 13:36:19,957 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 13:36:19,985 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 13:36:19,985 INFO L301 CfgBuilder]: Removed 100 assume(true) statements. [2021-11-23 13:36:19,993 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:36:19 BoogieIcfgContainer [2021-11-23 13:36:19,993 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 13:36:19,995 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 13:36:19,996 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 13:36:19,999 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 13:36:20,000 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:36:07" (1/3) ... [2021-11-23 13:36:20,001 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b4e35e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:36:20, skipping insertion in model container [2021-11-23 13:36:20,001 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:36:09" (2/3) ... [2021-11-23 13:36:20,002 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b4e35e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:36:20, skipping insertion in model container [2021-11-23 13:36:20,002 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:36:19" (3/3) ... [2021-11-23 13:36:20,004 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_OAT_test5-3.i [2021-11-23 13:36:20,011 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 13:36:20,012 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 936 error locations. [2021-11-23 13:36:20,073 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 13:36:20,083 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 13:36:20,085 INFO L340 AbstractCegarLoop]: Starting to check reachability of 936 error locations. [2021-11-23 13:36:20,159 INFO L276 IsEmpty]: Start isEmpty. Operand has 1855 states, 918 states have (on average 2.2505446623093683) internal successors, (2066), 1854 states have internal predecessors, (2066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:36:20,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-23 13:36:20,167 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:36:20,168 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-23 13:36:20,169 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 932 more)] === [2021-11-23 13:36:20,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:36:20,176 INFO L85 PathProgramCache]: Analyzing trace with hash 28698764, now seen corresponding path program 1 times [2021-11-23 13:36:20,190 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 13:36:20,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1110266001] [2021-11-23 13:36:20,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:36:20,193 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 13:36:20,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat [2021-11-23 13:36:20,197 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 13:36:20,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-23 13:36:20,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:36:20,455 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-23 13:36:20,464 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:36:20,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:36:20,535 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:36:20,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:36:20,547 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 13:36:20,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1110266001] [2021-11-23 13:36:20,549 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1110266001] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 13:36:20,549 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:36:20,549 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-23 13:36:20,551 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100715954] [2021-11-23 13:36:20,552 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 13:36:20,557 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 13:36:20,558 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 13:36:20,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 13:36:20,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 13:36:20,670 INFO L87 Difference]: Start difference. First operand has 1855 states, 918 states have (on average 2.2505446623093683) internal successors, (2066), 1854 states have internal predecessors, (2066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:36:20,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:36:20,821 INFO L93 Difference]: Finished difference Result 1837 states and 1935 transitions. [2021-11-23 13:36:20,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 13:36:20,824 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 5 [2021-11-23 13:36:20,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:36:20,856 INFO L225 Difference]: With dead ends: 1837 [2021-11-23 13:36:20,856 INFO L226 Difference]: Without dead ends: 1835 [2021-11-23 13:36:20,859 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 13:36:20,863 INFO L933 BasicCegarLoop]: 1935 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1935 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 13:36:20,865 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 1935 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 13:36:20,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1835 states. [2021-11-23 13:36:21,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1835 to 1835. [2021-11-23 13:36:21,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1835 states, 909 states have (on average 2.1265126512651267) internal successors, (1933), 1834 states have internal predecessors, (1933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:36:21,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1835 states to 1835 states and 1933 transitions. [2021-11-23 13:36:21,035 INFO L78 Accepts]: Start accepts. Automaton has 1835 states and 1933 transitions. Word has length 5 [2021-11-23 13:36:21,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:36:21,036 INFO L470 AbstractCegarLoop]: Abstraction has 1835 states and 1933 transitions. [2021-11-23 13:36:21,036 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:36:21,037 INFO L276 IsEmpty]: Start isEmpty. Operand 1835 states and 1933 transitions. [2021-11-23 13:36:21,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-23 13:36:21,037 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:36:21,038 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-23 13:36:21,060 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-23 13:36:21,255 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 [2021-11-23 13:36:21,255 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 932 more)] === [2021-11-23 13:36:21,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:36:21,260 INFO L85 PathProgramCache]: Analyzing trace with hash 28698826, now seen corresponding path program 1 times [2021-11-23 13:36:21,260 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 13:36:21,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2025993083] [2021-11-23 13:36:21,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:36:21,261 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 13:36:21,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat [2021-11-23 13:36:21,264 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 13:36:21,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-23 13:36:21,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:36:21,445 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 13:36:21,448 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:36:21,533 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-23 13:36:21,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:36:21,557 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:36:21,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:36:21,601 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 13:36:21,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2025993083] [2021-11-23 13:36:21,602 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2025993083] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 13:36:21,602 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:36:21,602 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-23 13:36:21,602 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702819604] [2021-11-23 13:36:21,602 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 13:36:21,604 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 13:36:21,604 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 13:36:21,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 13:36:21,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:36:21,605 INFO L87 Difference]: Start difference. First operand 1835 states and 1933 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:36:26,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:36:26,074 INFO L93 Difference]: Finished difference Result 2106 states and 2242 transitions. [2021-11-23 13:36:26,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 13:36:26,075 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 5 [2021-11-23 13:36:26,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:36:26,090 INFO L225 Difference]: With dead ends: 2106 [2021-11-23 13:36:26,090 INFO L226 Difference]: Without dead ends: 2106 [2021-11-23 13:36:26,090 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:36:26,093 INFO L933 BasicCegarLoop]: 1370 mSDtfsCounter, 1419 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 1085 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1419 SdHoareTripleChecker+Valid, 1826 SdHoareTripleChecker+Invalid, 1187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 1085 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2021-11-23 13:36:26,094 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1419 Valid, 1826 Invalid, 1187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 1085 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2021-11-23 13:36:26,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2106 states. [2021-11-23 13:36:26,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2106 to 1820. [2021-11-23 13:36:26,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1820 states, 985 states have (on average 2.0071065989847714) internal successors, (1977), 1819 states have internal predecessors, (1977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:36:26,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1820 states to 1820 states and 1977 transitions. [2021-11-23 13:36:26,153 INFO L78 Accepts]: Start accepts. Automaton has 1820 states and 1977 transitions. Word has length 5 [2021-11-23 13:36:26,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:36:26,153 INFO L470 AbstractCegarLoop]: Abstraction has 1820 states and 1977 transitions. [2021-11-23 13:36:26,154 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:36:26,155 INFO L276 IsEmpty]: Start isEmpty. Operand 1820 states and 1977 transitions. [2021-11-23 13:36:26,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-23 13:36:26,155 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:36:26,155 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-23 13:36:26,180 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-23 13:36:26,380 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 [2021-11-23 13:36:26,381 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 932 more)] === [2021-11-23 13:36:26,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:36:26,382 INFO L85 PathProgramCache]: Analyzing trace with hash 28698827, now seen corresponding path program 1 times [2021-11-23 13:36:26,387 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 13:36:26,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1401332905] [2021-11-23 13:36:26,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:36:26,388 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 13:36:26,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat [2021-11-23 13:36:26,389 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 13:36:26,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-23 13:36:26,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:36:26,614 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 13:36:26,618 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:36:26,659 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-23 13:36:26,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:36:26,699 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:36:26,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:36:26,790 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 13:36:26,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1401332905] [2021-11-23 13:36:26,791 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1401332905] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 13:36:26,791 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:36:26,791 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-23 13:36:26,791 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474602409] [2021-11-23 13:36:26,791 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 13:36:26,792 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 13:36:26,792 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 13:36:26,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 13:36:26,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-23 13:36:26,793 INFO L87 Difference]: Start difference. First operand 1820 states and 1977 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 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) [2021-11-23 13:36:36,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:36:36,166 INFO L93 Difference]: Finished difference Result 2409 states and 2612 transitions. [2021-11-23 13:36:36,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 13:36:36,167 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 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 5 [2021-11-23 13:36:36,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:36:36,184 INFO L225 Difference]: With dead ends: 2409 [2021-11-23 13:36:36,184 INFO L226 Difference]: Without dead ends: 2409 [2021-11-23 13:36:36,185 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-23 13:36:36,189 INFO L933 BasicCegarLoop]: 1710 mSDtfsCounter, 1616 mSDsluCounter, 833 mSDsCounter, 0 mSdLazyCounter, 1259 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1616 SdHoareTripleChecker+Valid, 2543 SdHoareTripleChecker+Invalid, 1286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2021-11-23 13:36:36,192 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1616 Valid, 2543 Invalid, 1286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1259 Invalid, 0 Unknown, 0 Unchecked, 9.2s Time] [2021-11-23 13:36:36,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2409 states. [2021-11-23 13:36:36,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2409 to 1976. [2021-11-23 13:36:36,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1976 states, 1151 states have (on average 1.9834926151172894) internal successors, (2283), 1975 states have internal predecessors, (2283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:36:36,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1976 states to 1976 states and 2283 transitions. [2021-11-23 13:36:36,261 INFO L78 Accepts]: Start accepts. Automaton has 1976 states and 2283 transitions. Word has length 5 [2021-11-23 13:36:36,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:36:36,262 INFO L470 AbstractCegarLoop]: Abstraction has 1976 states and 2283 transitions. [2021-11-23 13:36:36,262 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 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) [2021-11-23 13:36:36,262 INFO L276 IsEmpty]: Start isEmpty. Operand 1976 states and 2283 transitions. [2021-11-23 13:36:36,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-23 13:36:36,263 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:36:36,263 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-23 13:36:36,282 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-23 13:36:36,477 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 [2021-11-23 13:36:36,478 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr640REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 932 more)] === [2021-11-23 13:36:36,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:36:36,480 INFO L85 PathProgramCache]: Analyzing trace with hash 891404513, now seen corresponding path program 1 times [2021-11-23 13:36:36,480 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 13:36:36,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [196741725] [2021-11-23 13:36:36,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:36:36,485 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 13:36:36,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat [2021-11-23 13:36:36,486 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 13:36:36,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-23 13:36:36,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:36:36,685 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 13:36:36,688 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:36:36,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:36:36,713 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:36:36,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:36:36,749 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 13:36:36,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [196741725] [2021-11-23 13:36:36,759 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [196741725] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 13:36:36,760 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:36:36,760 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-23 13:36:36,761 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607642605] [2021-11-23 13:36:36,761 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 13:36:36,761 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 13:36:36,761 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 13:36:36,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 13:36:36,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-23 13:36:36,763 INFO L87 Difference]: Start difference. First operand 1976 states and 2283 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 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) [2021-11-23 13:36:36,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:36:36,961 INFO L93 Difference]: Finished difference Result 3571 states and 4165 transitions. [2021-11-23 13:36:36,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 13:36:36,962 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 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 6 [2021-11-23 13:36:36,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:36:36,985 INFO L225 Difference]: With dead ends: 3571 [2021-11-23 13:36:36,985 INFO L226 Difference]: Without dead ends: 3571 [2021-11-23 13:36:36,985 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-23 13:36:36,989 INFO L933 BasicCegarLoop]: 1825 mSDtfsCounter, 4281 mSDsluCounter, 1821 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4281 SdHoareTripleChecker+Valid, 3646 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:36:36,991 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4281 Valid, 3646 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 13:36:37,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3571 states. [2021-11-23 13:36:37,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3571 to 2944. [2021-11-23 13:36:37,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2944 states, 2119 states have (on average 1.9627182633317604) internal successors, (4159), 2943 states have internal predecessors, (4159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:36:37,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2944 states to 2944 states and 4159 transitions. [2021-11-23 13:36:37,083 INFO L78 Accepts]: Start accepts. Automaton has 2944 states and 4159 transitions. Word has length 6 [2021-11-23 13:36:37,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:36:37,087 INFO L470 AbstractCegarLoop]: Abstraction has 2944 states and 4159 transitions. [2021-11-23 13:36:37,087 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 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) [2021-11-23 13:36:37,088 INFO L276 IsEmpty]: Start isEmpty. Operand 2944 states and 4159 transitions. [2021-11-23 13:36:37,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-23 13:36:37,089 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:36:37,090 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:36:37,114 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-23 13:36:37,303 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 [2021-11-23 13:36:37,308 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 932 more)] === [2021-11-23 13:36:37,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:36:37,312 INFO L85 PathProgramCache]: Analyzing trace with hash 2013913556, now seen corresponding path program 1 times [2021-11-23 13:36:37,312 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 13:36:37,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1043184732] [2021-11-23 13:36:37,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:36:37,313 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 13:36:37,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat [2021-11-23 13:36:37,315 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 13:36:37,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-23 13:36:37,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:36:37,566 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 13:36:37,569 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:36:37,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:36:37,606 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:36:37,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:36:37,636 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 13:36:37,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1043184732] [2021-11-23 13:36:37,637 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1043184732] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 13:36:37,637 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:36:37,637 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-23 13:36:37,638 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030980044] [2021-11-23 13:36:37,638 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 13:36:37,638 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 13:36:37,639 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 13:36:37,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 13:36:37,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-23 13:36:37,640 INFO L87 Difference]: Start difference. First operand 2944 states and 4159 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 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) [2021-11-23 13:36:37,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:36:37,711 INFO L93 Difference]: Finished difference Result 2884 states and 4073 transitions. [2021-11-23 13:36:37,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 13:36:37,712 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 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 11 [2021-11-23 13:36:37,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:36:37,732 INFO L225 Difference]: With dead ends: 2884 [2021-11-23 13:36:37,733 INFO L226 Difference]: Without dead ends: 2884 [2021-11-23 13:36:37,733 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-23 13:36:37,735 INFO L933 BasicCegarLoop]: 1784 mSDtfsCounter, 1786 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1786 SdHoareTripleChecker+Valid, 1798 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 13:36:37,736 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1786 Valid, 1798 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 13:36:37,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2884 states. [2021-11-23 13:36:37,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2884 to 2884. [2021-11-23 13:36:37,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2884 states, 2083 states have (on average 1.955352856457033) internal successors, (4073), 2883 states have internal predecessors, (4073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:36:37,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2884 states to 2884 states and 4073 transitions. [2021-11-23 13:36:37,815 INFO L78 Accepts]: Start accepts. Automaton has 2884 states and 4073 transitions. Word has length 11 [2021-11-23 13:36:37,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:36:37,816 INFO L470 AbstractCegarLoop]: Abstraction has 2884 states and 4073 transitions. [2021-11-23 13:36:37,816 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 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) [2021-11-23 13:36:37,816 INFO L276 IsEmpty]: Start isEmpty. Operand 2884 states and 4073 transitions. [2021-11-23 13:36:37,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-23 13:36:37,817 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:36:37,817 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:36:37,834 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-23 13:36:38,030 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 [2021-11-23 13:36:38,031 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr28REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 932 more)] === [2021-11-23 13:36:38,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:36:38,032 INFO L85 PathProgramCache]: Analyzing trace with hash -1659327634, now seen corresponding path program 1 times [2021-11-23 13:36:38,032 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 13:36:38,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [945791382] [2021-11-23 13:36:38,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:36:38,032 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 13:36:38,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat [2021-11-23 13:36:38,033 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 13:36:38,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-23 13:36:38,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:36:38,228 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 13:36:38,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:36:38,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:36:38,287 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:36:38,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:36:38,327 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 13:36:38,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [945791382] [2021-11-23 13:36:38,328 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [945791382] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 13:36:38,328 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:36:38,328 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-23 13:36:38,329 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589961680] [2021-11-23 13:36:38,329 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 13:36:38,329 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 13:36:38,329 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 13:36:38,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 13:36:38,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-23 13:36:38,331 INFO L87 Difference]: Start difference. First operand 2884 states and 4073 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:36:38,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:36:38,471 INFO L93 Difference]: Finished difference Result 2856 states and 4017 transitions. [2021-11-23 13:36:38,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 13:36:38,472 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 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 [2021-11-23 13:36:38,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:36:38,491 INFO L225 Difference]: With dead ends: 2856 [2021-11-23 13:36:38,491 INFO L226 Difference]: Without dead ends: 2856 [2021-11-23 13:36:38,491 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-23 13:36:38,492 INFO L933 BasicCegarLoop]: 1739 mSDtfsCounter, 3504 mSDsluCounter, 1739 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3504 SdHoareTripleChecker+Valid, 3478 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:36:38,493 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3504 Valid, 3478 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 13:36:38,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2856 states. [2021-11-23 13:36:38,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2856 to 2854. [2021-11-23 13:36:38,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2854 states, 2067 states have (on average 1.942428640541848) internal successors, (4015), 2853 states have internal predecessors, (4015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:36:38,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2854 states to 2854 states and 4015 transitions. [2021-11-23 13:36:38,567 INFO L78 Accepts]: Start accepts. Automaton has 2854 states and 4015 transitions. Word has length 13 [2021-11-23 13:36:38,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:36:38,567 INFO L470 AbstractCegarLoop]: Abstraction has 2854 states and 4015 transitions. [2021-11-23 13:36:38,568 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:36:38,568 INFO L276 IsEmpty]: Start isEmpty. Operand 2854 states and 4015 transitions. [2021-11-23 13:36:38,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 13:36:38,569 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:36:38,569 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:36:38,592 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-23 13:36:38,783 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 [2021-11-23 13:36:38,783 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr42REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 932 more)] === [2021-11-23 13:36:38,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:36:38,784 INFO L85 PathProgramCache]: Analyzing trace with hash 913198236, now seen corresponding path program 1 times [2021-11-23 13:36:38,785 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 13:36:38,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [341599561] [2021-11-23 13:36:38,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:36:38,785 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 13:36:38,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat [2021-11-23 13:36:38,786 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 13:36:38,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-23 13:36:38,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:36:38,977 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 13:36:38,981 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:36:39,001 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-23 13:36:39,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:36:39,116 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:36:39,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:36:39,232 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 13:36:39,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [341599561] [2021-11-23 13:36:39,232 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [341599561] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 13:36:39,232 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:36:39,232 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-23 13:36:39,233 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893053621] [2021-11-23 13:36:39,233 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 13:36:39,234 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 13:36:39,234 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 13:36:39,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 13:36:39,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 13:36:39,235 INFO L87 Difference]: Start difference. First operand 2854 states and 4015 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:36:44,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:36:44,883 INFO L93 Difference]: Finished difference Result 4570 states and 6195 transitions. [2021-11-23 13:36:44,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 13:36:44,884 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 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 27 [2021-11-23 13:36:44,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:36:44,917 INFO L225 Difference]: With dead ends: 4570 [2021-11-23 13:36:44,917 INFO L226 Difference]: Without dead ends: 4570 [2021-11-23 13:36:44,917 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 49 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 13:36:44,918 INFO L933 BasicCegarLoop]: 1064 mSDtfsCounter, 3517 mSDsluCounter, 1214 mSDsCounter, 0 mSdLazyCounter, 1985 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3517 SdHoareTripleChecker+Valid, 2278 SdHoareTripleChecker+Invalid, 2012 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1985 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2021-11-23 13:36:44,919 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3517 Valid, 2278 Invalid, 2012 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1985 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2021-11-23 13:36:44,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4570 states. [2021-11-23 13:36:45,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4570 to 2850. [2021-11-23 13:36:45,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2850 states, 2067 states have (on average 1.938558297048863) internal successors, (4007), 2849 states have internal predecessors, (4007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:36:45,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2850 states to 2850 states and 4007 transitions. [2021-11-23 13:36:45,047 INFO L78 Accepts]: Start accepts. Automaton has 2850 states and 4007 transitions. Word has length 27 [2021-11-23 13:36:45,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:36:45,047 INFO L470 AbstractCegarLoop]: Abstraction has 2850 states and 4007 transitions. [2021-11-23 13:36:45,048 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:36:45,048 INFO L276 IsEmpty]: Start isEmpty. Operand 2850 states and 4007 transitions. [2021-11-23 13:36:45,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 13:36:45,050 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:36:45,050 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:36:45,064 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-11-23 13:36:45,264 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 [2021-11-23 13:36:45,264 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr43REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 932 more)] === [2021-11-23 13:36:45,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:36:45,265 INFO L85 PathProgramCache]: Analyzing trace with hash 913198237, now seen corresponding path program 1 times [2021-11-23 13:36:45,265 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 13:36:45,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [249489669] [2021-11-23 13:36:45,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:36:45,266 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 13:36:45,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat [2021-11-23 13:36:45,267 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 13:36:45,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-23 13:36:45,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:36:45,484 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 13:36:45,488 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:36:45,506 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-23 13:36:45,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:36:45,795 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:36:46,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:36:46,307 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 13:36:46,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [249489669] [2021-11-23 13:36:46,307 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [249489669] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 13:36:46,307 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:36:46,307 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-23 13:36:46,308 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220985662] [2021-11-23 13:36:46,308 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 13:36:46,308 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 13:36:46,308 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 13:36:46,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 13:36:46,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-23 13:36:46,309 INFO L87 Difference]: Start difference. First operand 2850 states and 4007 transitions. Second operand has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:37:01,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:37:01,051 INFO L93 Difference]: Finished difference Result 3840 states and 5051 transitions. [2021-11-23 13:37:01,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 13:37:01,053 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 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 27 [2021-11-23 13:37:01,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:37:01,072 INFO L225 Difference]: With dead ends: 3840 [2021-11-23 13:37:01,072 INFO L226 Difference]: Without dead ends: 3840 [2021-11-23 13:37:01,073 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-23 13:37:01,074 INFO L933 BasicCegarLoop]: 1221 mSDtfsCounter, 2971 mSDsluCounter, 2466 mSDsCounter, 0 mSdLazyCounter, 3046 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2971 SdHoareTripleChecker+Valid, 3687 SdHoareTripleChecker+Invalid, 3059 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 3046 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.5s IncrementalHoareTripleChecker+Time [2021-11-23 13:37:01,074 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2971 Valid, 3687 Invalid, 3059 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 3046 Invalid, 0 Unknown, 0 Unchecked, 14.5s Time] [2021-11-23 13:37:01,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3840 states. [2021-11-23 13:37:01,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3840 to 2846. [2021-11-23 13:37:01,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2846 states, 2067 states have (on average 1.934687953555878) internal successors, (3999), 2845 states have internal predecessors, (3999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:37:01,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2846 states to 2846 states and 3999 transitions. [2021-11-23 13:37:01,152 INFO L78 Accepts]: Start accepts. Automaton has 2846 states and 3999 transitions. Word has length 27 [2021-11-23 13:37:01,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:37:01,152 INFO L470 AbstractCegarLoop]: Abstraction has 2846 states and 3999 transitions. [2021-11-23 13:37:01,152 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:37:01,153 INFO L276 IsEmpty]: Start isEmpty. Operand 2846 states and 3999 transitions. [2021-11-23 13:37:01,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-23 13:37:01,154 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:37:01,155 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:37:01,169 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-23 13:37:01,367 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 [2021-11-23 13:37:01,368 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr107REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 932 more)] === [2021-11-23 13:37:01,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:37:01,368 INFO L85 PathProgramCache]: Analyzing trace with hash 944973104, now seen corresponding path program 1 times [2021-11-23 13:37:01,369 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 13:37:01,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [224063806] [2021-11-23 13:37:01,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:37:01,369 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 13:37:01,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat [2021-11-23 13:37:01,370 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 13:37:01,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-23 13:37:01,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:37:01,596 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 13:37:01,601 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:37:01,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:37:01,733 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:37:01,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:37:01,851 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 13:37:01,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [224063806] [2021-11-23 13:37:01,852 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [224063806] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 13:37:01,852 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:37:01,852 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-23 13:37:01,852 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818574833] [2021-11-23 13:37:01,853 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 13:37:01,853 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 13:37:01,853 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 13:37:01,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 13:37:01,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 13:37:01,854 INFO L87 Difference]: Start difference. First operand 2846 states and 3999 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:37:01,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:37:01,958 INFO L93 Difference]: Finished difference Result 2834 states and 3979 transitions. [2021-11-23 13:37:01,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 13:37:01,959 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 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 42 [2021-11-23 13:37:01,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:37:01,999 INFO L225 Difference]: With dead ends: 2834 [2021-11-23 13:37:01,999 INFO L226 Difference]: Without dead ends: 2834 [2021-11-23 13:37:01,999 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 13:37:02,000 INFO L933 BasicCegarLoop]: 1733 mSDtfsCounter, 1733 mSDsluCounter, 1723 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1733 SdHoareTripleChecker+Valid, 3456 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:37:02,001 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1733 Valid, 3456 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 13:37:02,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2834 states. [2021-11-23 13:37:02,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2834 to 2834. [2021-11-23 13:37:02,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2834 states, 2055 states have (on average 1.9362530413625305) internal successors, (3979), 2833 states have internal predecessors, (3979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:37:02,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2834 states to 2834 states and 3979 transitions. [2021-11-23 13:37:02,072 INFO L78 Accepts]: Start accepts. Automaton has 2834 states and 3979 transitions. Word has length 42 [2021-11-23 13:37:02,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:37:02,075 INFO L470 AbstractCegarLoop]: Abstraction has 2834 states and 3979 transitions. [2021-11-23 13:37:02,075 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:37:02,075 INFO L276 IsEmpty]: Start isEmpty. Operand 2834 states and 3979 transitions. [2021-11-23 13:37:02,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-23 13:37:02,081 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:37:02,081 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:37:02,097 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-23 13:37:02,296 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 [2021-11-23 13:37:02,296 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr107REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 932 more)] === [2021-11-23 13:37:02,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:37:02,297 INFO L85 PathProgramCache]: Analyzing trace with hash 29098340, now seen corresponding path program 1 times [2021-11-23 13:37:02,298 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 13:37:02,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1066511369] [2021-11-23 13:37:02,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:37:02,298 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 13:37:02,298 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat [2021-11-23 13:37:02,299 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 13:37:02,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-23 13:37:02,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:37:02,518 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 13:37:02,521 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:37:02,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:37:02,914 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:37:03,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:37:03,294 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 13:37:03,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1066511369] [2021-11-23 13:37:03,294 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1066511369] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 13:37:03,294 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:37:03,294 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-23 13:37:03,294 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932120584] [2021-11-23 13:37:03,295 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 13:37:03,295 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 13:37:03,295 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 13:37:03,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 13:37:03,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:37:03,296 INFO L87 Difference]: Start difference. First operand 2834 states and 3979 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:37:03,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:37:03,682 INFO L93 Difference]: Finished difference Result 3023 states and 4014 transitions. [2021-11-23 13:37:03,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 13:37:03,683 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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 50 [2021-11-23 13:37:03,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:37:03,691 INFO L225 Difference]: With dead ends: 3023 [2021-11-23 13:37:03,691 INFO L226 Difference]: Without dead ends: 3023 [2021-11-23 13:37:03,692 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:37:03,693 INFO L933 BasicCegarLoop]: 1811 mSDtfsCounter, 465 mSDsluCounter, 1599 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 465 SdHoareTripleChecker+Valid, 3410 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-23 13:37:03,694 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [465 Valid, 3410 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-23 13:37:03,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3023 states. [2021-11-23 13:37:03,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3023 to 2650. [2021-11-23 13:37:03,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2650 states, 1871 states have (on average 1.936932121859968) internal successors, (3624), 2649 states have internal predecessors, (3624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:37:03,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2650 states to 2650 states and 3624 transitions. [2021-11-23 13:37:03,769 INFO L78 Accepts]: Start accepts. Automaton has 2650 states and 3624 transitions. Word has length 50 [2021-11-23 13:37:03,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:37:03,770 INFO L470 AbstractCegarLoop]: Abstraction has 2650 states and 3624 transitions. [2021-11-23 13:37:03,770 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:37:03,771 INFO L276 IsEmpty]: Start isEmpty. Operand 2650 states and 3624 transitions. [2021-11-23 13:37:03,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-23 13:37:03,772 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:37:03,772 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:37:03,795 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-23 13:37:03,987 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 [2021-11-23 13:37:03,987 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr61REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 932 more)] === [2021-11-23 13:37:03,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:37:03,987 INFO L85 PathProgramCache]: Analyzing trace with hash -839399161, now seen corresponding path program 1 times [2021-11-23 13:37:03,988 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 13:37:03,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [490075980] [2021-11-23 13:37:03,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:37:03,988 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 13:37:03,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat [2021-11-23 13:37:03,990 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 13:37:04,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-23 13:37:04,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:37:04,392 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 13:37:04,395 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:37:04,419 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-23 13:37:04,428 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-23 13:37:05,121 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-23 13:37:05,121 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 27 [2021-11-23 13:37:05,134 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-23 13:37:05,135 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 20 [2021-11-23 13:37:05,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:37:05,214 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:37:10,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:37:10,304 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 13:37:10,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [490075980] [2021-11-23 13:37:10,304 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [490075980] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 13:37:10,305 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:37:10,305 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-23 13:37:10,305 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649692405] [2021-11-23 13:37:10,305 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 13:37:10,306 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 13:37:10,306 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 13:37:10,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 13:37:10,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=16, Unknown=1, NotChecked=0, Total=30 [2021-11-23 13:37:10,308 INFO L87 Difference]: Start difference. First operand 2650 states and 3624 transitions. Second operand has 6 states, 5 states have (on average 20.8) internal successors, (104), 6 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:37:23,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:37:23,460 INFO L93 Difference]: Finished difference Result 4100 states and 5290 transitions. [2021-11-23 13:37:23,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 13:37:23,461 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 20.8) internal successors, (104), 6 states have internal predecessors, (104), 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 53 [2021-11-23 13:37:23,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:37:23,471 INFO L225 Difference]: With dead ends: 4100 [2021-11-23 13:37:23,472 INFO L226 Difference]: Without dead ends: 4100 [2021-11-23 13:37:23,472 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=19, Invalid=22, Unknown=1, NotChecked=0, Total=42 [2021-11-23 13:37:23,473 INFO L933 BasicCegarLoop]: 1453 mSDtfsCounter, 2000 mSDsluCounter, 2604 mSDsCounter, 0 mSdLazyCounter, 2798 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2000 SdHoareTripleChecker+Valid, 4057 SdHoareTripleChecker+Invalid, 5632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 2798 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2759 IncrementalHoareTripleChecker+Unchecked, 13.0s IncrementalHoareTripleChecker+Time [2021-11-23 13:37:23,474 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2000 Valid, 4057 Invalid, 5632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 2798 Invalid, 0 Unknown, 2759 Unchecked, 13.0s Time] [2021-11-23 13:37:23,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4100 states. [2021-11-23 13:37:23,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4100 to 2754. [2021-11-23 13:37:23,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2754 states, 2007 states have (on average 1.8973592426507224) internal successors, (3808), 2753 states have internal predecessors, (3808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:37:23,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2754 states to 2754 states and 3808 transitions. [2021-11-23 13:37:23,535 INFO L78 Accepts]: Start accepts. Automaton has 2754 states and 3808 transitions. Word has length 53 [2021-11-23 13:37:23,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:37:23,536 INFO L470 AbstractCegarLoop]: Abstraction has 2754 states and 3808 transitions. [2021-11-23 13:37:23,536 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 20.8) internal successors, (104), 6 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:37:23,537 INFO L276 IsEmpty]: Start isEmpty. Operand 2754 states and 3808 transitions. [2021-11-23 13:37:23,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-23 13:37:23,538 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:37:23,538 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:37:23,555 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-23 13:37:23,754 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 [2021-11-23 13:37:23,754 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr63REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 932 more)] === [2021-11-23 13:37:23,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:37:23,755 INFO L85 PathProgramCache]: Analyzing trace with hash 791264744, now seen corresponding path program 1 times [2021-11-23 13:37:23,755 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 13:37:23,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1184863068] [2021-11-23 13:37:23,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:37:23,756 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 13:37:23,756 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat [2021-11-23 13:37:23,757 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 13:37:23,758 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-23 13:37:24,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:37:24,030 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 13:37:24,033 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:37:24,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:37:24,258 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:37:24,344 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2021-11-23 13:37:24,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:37:24,717 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 13:37:24,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1184863068] [2021-11-23 13:37:24,718 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1184863068] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 13:37:24,718 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:37:24,718 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-23 13:37:24,718 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342937141] [2021-11-23 13:37:24,718 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 13:37:24,719 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 13:37:24,719 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 13:37:24,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 13:37:24,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-23 13:37:24,719 INFO L87 Difference]: Start difference. First operand 2754 states and 3808 transitions. Second operand has 6 states, 5 states have (on average 21.6) internal successors, (108), 6 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:37:27,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:37:27,728 INFO L93 Difference]: Finished difference Result 2752 states and 3804 transitions. [2021-11-23 13:37:27,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 13:37:27,730 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 21.6) internal successors, (108), 6 states have internal predecessors, (108), 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 55 [2021-11-23 13:37:27,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:37:27,735 INFO L225 Difference]: With dead ends: 2752 [2021-11-23 13:37:27,735 INFO L226 Difference]: Without dead ends: 2752 [2021-11-23 13:37:27,735 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-23 13:37:27,736 INFO L933 BasicCegarLoop]: 1080 mSDtfsCounter, 2524 mSDsluCounter, 796 mSDsCounter, 0 mSdLazyCounter, 693 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2524 SdHoareTripleChecker+Valid, 1876 SdHoareTripleChecker+Invalid, 712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 693 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2021-11-23 13:37:27,736 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2524 Valid, 1876 Invalid, 712 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 693 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2021-11-23 13:37:27,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2752 states. [2021-11-23 13:37:27,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2752 to 2752. [2021-11-23 13:37:27,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2752 states, 2007 states have (on average 1.8953662182361735) internal successors, (3804), 2751 states have internal predecessors, (3804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:37:27,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2752 states to 2752 states and 3804 transitions. [2021-11-23 13:37:27,782 INFO L78 Accepts]: Start accepts. Automaton has 2752 states and 3804 transitions. Word has length 55 [2021-11-23 13:37:27,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:37:27,782 INFO L470 AbstractCegarLoop]: Abstraction has 2752 states and 3804 transitions. [2021-11-23 13:37:27,783 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 21.6) internal successors, (108), 6 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:37:27,783 INFO L276 IsEmpty]: Start isEmpty. Operand 2752 states and 3804 transitions. [2021-11-23 13:37:27,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-23 13:37:27,784 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:37:27,784 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:37:27,819 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (13)] Ended with exit code 0 [2021-11-23 13:37:28,019 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 [2021-11-23 13:37:28,020 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 932 more)] === [2021-11-23 13:37:28,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:37:28,020 INFO L85 PathProgramCache]: Analyzing trace with hash -416260760, now seen corresponding path program 1 times [2021-11-23 13:37:28,021 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 13:37:28,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [822921576] [2021-11-23 13:37:28,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:37:28,021 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 13:37:28,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat [2021-11-23 13:37:28,022 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 13:37:28,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-23 13:37:28,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:37:28,285 INFO L263 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 13:37:28,287 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:37:28,394 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-23 13:37:28,409 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2021-11-23 13:37:28,445 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-11-23 13:37:28,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:37:28,477 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:37:28,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:37:28,623 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 13:37:28,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [822921576] [2021-11-23 13:37:28,623 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [822921576] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 13:37:28,623 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:37:28,623 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-23 13:37:28,623 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297764336] [2021-11-23 13:37:28,624 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 13:37:28,624 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 13:37:28,624 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 13:37:28,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 13:37:28,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-23 13:37:28,626 INFO L87 Difference]: Start difference. First operand 2752 states and 3804 transitions. Second operand has 6 states, 5 states have (on average 11.8) internal successors, (59), 6 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:37:38,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:37:38,983 INFO L93 Difference]: Finished difference Result 4117 states and 5504 transitions. [2021-11-23 13:37:38,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-23 13:37:38,983 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.8) internal successors, (59), 6 states have internal predecessors, (59), 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 59 [2021-11-23 13:37:38,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:37:38,993 INFO L225 Difference]: With dead ends: 4117 [2021-11-23 13:37:38,993 INFO L226 Difference]: Without dead ends: 4117 [2021-11-23 13:37:38,994 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 109 SyntacticMatches, 3 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2021-11-23 13:37:38,994 INFO L933 BasicCegarLoop]: 1219 mSDtfsCounter, 1547 mSDsluCounter, 3670 mSDsCounter, 0 mSdLazyCounter, 4156 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1547 SdHoareTripleChecker+Valid, 4889 SdHoareTripleChecker+Invalid, 4178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 4156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:37:38,995 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1547 Valid, 4889 Invalid, 4178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 4156 Invalid, 0 Unknown, 0 Unchecked, 10.1s Time] [2021-11-23 13:37:39,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4117 states. [2021-11-23 13:37:39,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4117 to 2751. [2021-11-23 13:37:39,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2751 states, 2007 states have (on average 1.8943697060288989) internal successors, (3802), 2750 states have internal predecessors, (3802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:37:39,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2751 states to 2751 states and 3802 transitions. [2021-11-23 13:37:39,050 INFO L78 Accepts]: Start accepts. Automaton has 2751 states and 3802 transitions. Word has length 59 [2021-11-23 13:37:39,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:37:39,050 INFO L470 AbstractCegarLoop]: Abstraction has 2751 states and 3802 transitions. [2021-11-23 13:37:39,051 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.8) internal successors, (59), 6 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:37:39,051 INFO L276 IsEmpty]: Start isEmpty. Operand 2751 states and 3802 transitions. [2021-11-23 13:37:39,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-23 13:37:39,052 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:37:39,052 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:37:39,079 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-23 13:37:39,268 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 [2021-11-23 13:37:39,268 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr67ASSERT_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 932 more)] === [2021-11-23 13:37:39,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:37:39,269 INFO L85 PathProgramCache]: Analyzing trace with hash -19181353, now seen corresponding path program 1 times [2021-11-23 13:37:39,269 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 13:37:39,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2134260729] [2021-11-23 13:37:39,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:37:39,270 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 13:37:39,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat [2021-11-23 13:37:39,272 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 13:37:39,313 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-23 13:37:39,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:37:39,612 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-23 13:37:39,615 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:37:39,728 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-23 13:37:39,773 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-23 13:37:39,786 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-11-23 13:37:39,859 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 27 [2021-11-23 13:37:39,862 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2021-11-23 13:37:39,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:37:39,930 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:37:40,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:37:40,396 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 13:37:40,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2134260729] [2021-11-23 13:37:40,396 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2134260729] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 13:37:40,396 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:37:40,397 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2021-11-23 13:37:40,397 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969729892] [2021-11-23 13:37:40,397 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 13:37:40,397 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-23 13:37:40,398 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 13:37:40,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-23 13:37:40,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-23 13:37:40,399 INFO L87 Difference]: Start difference. First operand 2751 states and 3802 transitions. Second operand has 10 states, 9 states have (on average 7.666666666666667) internal successors, (69), 10 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:38:15,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:38:15,394 INFO L93 Difference]: Finished difference Result 3682 states and 4799 transitions. [2021-11-23 13:38:15,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-23 13:38:15,395 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.666666666666667) internal successors, (69), 10 states have internal predecessors, (69), 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 60 [2021-11-23 13:38:15,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:38:15,403 INFO L225 Difference]: With dead ends: 3682 [2021-11-23 13:38:15,404 INFO L226 Difference]: Without dead ends: 3682 [2021-11-23 13:38:15,404 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2021-11-23 13:38:15,405 INFO L933 BasicCegarLoop]: 1618 mSDtfsCounter, 1538 mSDsluCounter, 5567 mSDsCounter, 0 mSdLazyCounter, 5764 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1538 SdHoareTripleChecker+Valid, 7185 SdHoareTripleChecker+Invalid, 5778 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 5764 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.6s IncrementalHoareTripleChecker+Time [2021-11-23 13:38:15,406 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1538 Valid, 7185 Invalid, 5778 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 5764 Invalid, 0 Unknown, 0 Unchecked, 34.6s Time] [2021-11-23 13:38:15,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3682 states. [2021-11-23 13:38:15,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3682 to 2750. [2021-11-23 13:38:15,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2750 states, 2007 states have (on average 1.8933731938216243) internal successors, (3800), 2749 states have internal predecessors, (3800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:38:15,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2750 states to 2750 states and 3800 transitions. [2021-11-23 13:38:15,456 INFO L78 Accepts]: Start accepts. Automaton has 2750 states and 3800 transitions. Word has length 60 [2021-11-23 13:38:15,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:38:15,457 INFO L470 AbstractCegarLoop]: Abstraction has 2750 states and 3800 transitions. [2021-11-23 13:38:15,457 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.666666666666667) internal successors, (69), 10 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:38:15,457 INFO L276 IsEmpty]: Start isEmpty. Operand 2750 states and 3800 transitions. [2021-11-23 13:38:15,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-23 13:38:15,458 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:38:15,458 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:38:15,474 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-11-23 13:38:15,673 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 [2021-11-23 13:38:15,674 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 932 more)] === [2021-11-23 13:38:15,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:38:15,674 INFO L85 PathProgramCache]: Analyzing trace with hash -1927168386, now seen corresponding path program 1 times [2021-11-23 13:38:15,675 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 13:38:15,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1059063484] [2021-11-23 13:38:15,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:38:15,681 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 13:38:15,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat [2021-11-23 13:38:15,682 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 13:38:15,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-23 13:38:16,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:38:16,036 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 13:38:16,039 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:38:16,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:38:16,173 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:38:16,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:38:16,282 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 13:38:16,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1059063484] [2021-11-23 13:38:16,283 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1059063484] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 13:38:16,283 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:38:16,283 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-23 13:38:16,283 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575006589] [2021-11-23 13:38:16,283 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 13:38:16,283 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 13:38:16,284 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 13:38:16,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 13:38:16,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-23 13:38:16,285 INFO L87 Difference]: Start difference. First operand 2750 states and 3800 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:38:16,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:38:16,571 INFO L93 Difference]: Finished difference Result 4974 states and 6778 transitions. [2021-11-23 13:38:16,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-23 13:38:16,571 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 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 64 [2021-11-23 13:38:16,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:38:16,585 INFO L225 Difference]: With dead ends: 4974 [2021-11-23 13:38:16,585 INFO L226 Difference]: Without dead ends: 4974 [2021-11-23 13:38:16,586 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2021-11-23 13:38:16,587 INFO L933 BasicCegarLoop]: 2170 mSDtfsCounter, 1687 mSDsluCounter, 5396 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1687 SdHoareTripleChecker+Valid, 7566 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 13:38:16,587 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1687 Valid, 7566 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 13:38:16,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4974 states. [2021-11-23 13:38:16,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4974 to 2765. [2021-11-23 13:38:16,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2765 states, 2022 states have (on average 1.8867457962413452) internal successors, (3815), 2764 states have internal predecessors, (3815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:38:16,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2765 states to 2765 states and 3815 transitions. [2021-11-23 13:38:16,656 INFO L78 Accepts]: Start accepts. Automaton has 2765 states and 3815 transitions. Word has length 64 [2021-11-23 13:38:16,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:38:16,657 INFO L470 AbstractCegarLoop]: Abstraction has 2765 states and 3815 transitions. [2021-11-23 13:38:16,657 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:38:16,657 INFO L276 IsEmpty]: Start isEmpty. Operand 2765 states and 3815 transitions. [2021-11-23 13:38:16,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-23 13:38:16,658 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:38:16,658 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:38:16,684 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-11-23 13:38:16,871 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 [2021-11-23 13:38:16,872 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 932 more)] === [2021-11-23 13:38:16,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:38:16,872 INFO L85 PathProgramCache]: Analyzing trace with hash -938951394, now seen corresponding path program 1 times [2021-11-23 13:38:16,873 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 13:38:16,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1363368217] [2021-11-23 13:38:16,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:38:16,874 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 13:38:16,874 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat [2021-11-23 13:38:16,875 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 13:38:16,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-11-23 13:38:17,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:38:17,146 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 13:38:17,148 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:38:17,339 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:38:17,340 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:38:17,552 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:38:17,552 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 13:38:17,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1363368217] [2021-11-23 13:38:17,552 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1363368217] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 13:38:17,552 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-23 13:38:17,552 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-11-23 13:38:17,552 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402962437] [2021-11-23 13:38:17,553 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-23 13:38:17,553 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-23 13:38:17,553 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 13:38:17,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-23 13:38:17,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-23 13:38:17,554 INFO L87 Difference]: Start difference. First operand 2765 states and 3815 transitions. Second operand has 10 states, 10 states have (on average 7.2) internal successors, (72), 10 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:38:18,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:38:18,334 INFO L93 Difference]: Finished difference Result 4170 states and 5550 transitions. [2021-11-23 13:38:18,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-23 13:38:18,335 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.2) internal successors, (72), 10 states have internal predecessors, (72), 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 66 [2021-11-23 13:38:18,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:38:18,345 INFO L225 Difference]: With dead ends: 4170 [2021-11-23 13:38:18,345 INFO L226 Difference]: Without dead ends: 4170 [2021-11-23 13:38:18,346 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=96, Invalid=144, Unknown=0, NotChecked=0, Total=240 [2021-11-23 13:38:18,346 INFO L933 BasicCegarLoop]: 1747 mSDtfsCounter, 1261 mSDsluCounter, 8405 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1261 SdHoareTripleChecker+Valid, 10152 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-23 13:38:18,347 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1261 Valid, 10152 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-23 13:38:18,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4170 states. [2021-11-23 13:38:18,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4170 to 2795. [2021-11-23 13:38:18,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2795 states, 2052 states have (on average 1.8737816764132553) internal successors, (3845), 2794 states have internal predecessors, (3845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:38:18,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2795 states to 2795 states and 3845 transitions. [2021-11-23 13:38:18,409 INFO L78 Accepts]: Start accepts. Automaton has 2795 states and 3845 transitions. Word has length 66 [2021-11-23 13:38:18,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:38:18,410 INFO L470 AbstractCegarLoop]: Abstraction has 2795 states and 3845 transitions. [2021-11-23 13:38:18,410 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.2) internal successors, (72), 10 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:38:18,410 INFO L276 IsEmpty]: Start isEmpty. Operand 2795 states and 3845 transitions. [2021-11-23 13:38:18,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-23 13:38:18,411 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:38:18,411 INFO L514 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:38:18,434 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-11-23 13:38:18,627 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 [2021-11-23 13:38:18,628 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 932 more)] === [2021-11-23 13:38:18,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:38:18,628 INFO L85 PathProgramCache]: Analyzing trace with hash 1093747294, now seen corresponding path program 2 times [2021-11-23 13:38:18,629 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 13:38:18,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [410295750] [2021-11-23 13:38:18,629 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-23 13:38:18,629 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 13:38:18,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat [2021-11-23 13:38:18,631 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 13:38:18,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-11-23 13:38:19,169 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-23 13:38:19,169 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 13:38:19,191 INFO L263 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 13:38:19,193 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:38:19,490 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:38:19,491 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:38:20,431 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:38:20,432 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 13:38:20,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [410295750] [2021-11-23 13:38:20,432 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [410295750] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 13:38:20,432 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-23 13:38:20,432 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2021-11-23 13:38:20,432 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362555186] [2021-11-23 13:38:20,432 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-23 13:38:20,433 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-23 13:38:20,433 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 13:38:20,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-23 13:38:20,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2021-11-23 13:38:20,434 INFO L87 Difference]: Start difference. First operand 2795 states and 3845 transitions. Second operand has 18 states, 18 states have (on average 4.444444444444445) internal successors, (80), 18 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:38:29,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:38:29,299 INFO L93 Difference]: Finished difference Result 11969 states and 16274 transitions. [2021-11-23 13:38:29,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-11-23 13:38:29,301 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.444444444444445) internal successors, (80), 18 states have internal predecessors, (80), 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 70 [2021-11-23 13:38:29,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:38:29,313 INFO L225 Difference]: With dead ends: 11969 [2021-11-23 13:38:29,313 INFO L226 Difference]: Without dead ends: 11969 [2021-11-23 13:38:29,314 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 321 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=454, Invalid=952, Unknown=0, NotChecked=0, Total=1406 [2021-11-23 13:38:29,315 INFO L933 BasicCegarLoop]: 6443 mSDtfsCounter, 20216 mSDsluCounter, 46151 mSDsCounter, 0 mSdLazyCounter, 749 mSolverCounterSat, 219 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20216 SdHoareTripleChecker+Valid, 52594 SdHoareTripleChecker+Invalid, 968 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 219 IncrementalHoareTripleChecker+Valid, 749 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2021-11-23 13:38:29,315 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20216 Valid, 52594 Invalid, 968 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [219 Valid, 749 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2021-11-23 13:38:29,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11969 states. [2021-11-23 13:38:29,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11969 to 2890. [2021-11-23 13:38:29,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2890 states, 2147 states have (on average 1.856078248719143) internal successors, (3985), 2889 states have internal predecessors, (3985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:38:29,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2890 states to 2890 states and 3985 transitions. [2021-11-23 13:38:29,467 INFO L78 Accepts]: Start accepts. Automaton has 2890 states and 3985 transitions. Word has length 70 [2021-11-23 13:38:29,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:38:29,468 INFO L470 AbstractCegarLoop]: Abstraction has 2890 states and 3985 transitions. [2021-11-23 13:38:29,468 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 4.444444444444445) internal successors, (80), 18 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:38:29,468 INFO L276 IsEmpty]: Start isEmpty. Operand 2890 states and 3985 transitions. [2021-11-23 13:38:29,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-23 13:38:29,473 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:38:29,474 INFO L514 BasicCegarLoop]: trace histogram [14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:38:29,499 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-11-23 13:38:29,692 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 [2021-11-23 13:38:29,692 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 932 more)] === [2021-11-23 13:38:29,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:38:29,693 INFO L85 PathProgramCache]: Analyzing trace with hash -1408996130, now seen corresponding path program 3 times [2021-11-23 13:38:29,694 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 13:38:29,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1718965935] [2021-11-23 13:38:29,694 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-23 13:38:29,694 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 13:38:29,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat [2021-11-23 13:38:29,696 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 13:38:29,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-11-23 13:38:30,656 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2021-11-23 13:38:30,657 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 13:38:30,681 INFO L263 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-23 13:38:30,684 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:38:31,262 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:38:31,262 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:38:32,914 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:38:32,914 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 13:38:32,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1718965935] [2021-11-23 13:38:32,915 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1718965935] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 13:38:32,915 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-23 13:38:32,915 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 34 [2021-11-23 13:38:32,916 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092793692] [2021-11-23 13:38:32,916 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-23 13:38:32,916 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2021-11-23 13:38:32,917 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 13:38:32,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-11-23 13:38:32,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=321, Invalid=801, Unknown=0, NotChecked=0, Total=1122 [2021-11-23 13:38:32,919 INFO L87 Difference]: Start difference. First operand 2890 states and 3985 transitions. Second operand has 34 states, 34 states have (on average 2.823529411764706) internal successors, (96), 34 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:38:59,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:38:59,286 INFO L93 Difference]: Finished difference Result 31865 states and 43944 transitions. [2021-11-23 13:38:59,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2021-11-23 13:38:59,288 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.823529411764706) internal successors, (96), 34 states have internal predecessors, (96), 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 78 [2021-11-23 13:38:59,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:38:59,328 INFO L225 Difference]: With dead ends: 31865 [2021-11-23 13:38:59,328 INFO L226 Difference]: Without dead ends: 31865 [2021-11-23 13:38:59,330 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1547 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=1644, Invalid=4208, Unknown=0, NotChecked=0, Total=5852 [2021-11-23 13:38:59,331 INFO L933 BasicCegarLoop]: 19067 mSDtfsCounter, 54351 mSDsluCounter, 284260 mSDsCounter, 0 mSdLazyCounter, 3281 mSolverCounterSat, 594 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54351 SdHoareTripleChecker+Valid, 303327 SdHoareTripleChecker+Invalid, 3875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.5s SdHoareTripleChecker+Time, 594 IncrementalHoareTripleChecker+Valid, 3281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.6s IncrementalHoareTripleChecker+Time [2021-11-23 13:38:59,332 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [54351 Valid, 303327 Invalid, 3875 Unknown, 0 Unchecked, 0.5s Time], IncrementalHoareTripleChecker [594 Valid, 3281 Invalid, 0 Unknown, 0 Unchecked, 17.6s Time] [2021-11-23 13:38:59,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31865 states. [2021-11-23 13:38:59,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31865 to 3050. [2021-11-23 13:38:59,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3050 states, 2307 states have (on average 1.8270481144343302) internal successors, (4215), 3049 states have internal predecessors, (4215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:38:59,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3050 states to 3050 states and 4215 transitions. [2021-11-23 13:38:59,569 INFO L78 Accepts]: Start accepts. Automaton has 3050 states and 4215 transitions. Word has length 78 [2021-11-23 13:38:59,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:38:59,570 INFO L470 AbstractCegarLoop]: Abstraction has 3050 states and 4215 transitions. [2021-11-23 13:38:59,570 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 2.823529411764706) internal successors, (96), 34 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:38:59,570 INFO L276 IsEmpty]: Start isEmpty. Operand 3050 states and 4215 transitions. [2021-11-23 13:38:59,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-11-23 13:38:59,571 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:38:59,571 INFO L514 BasicCegarLoop]: trace histogram [30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:38:59,596 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2021-11-23 13:38:59,790 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 [2021-11-23 13:38:59,790 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 932 more)] === [2021-11-23 13:38:59,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:38:59,790 INFO L85 PathProgramCache]: Analyzing trace with hash -2005712418, now seen corresponding path program 4 times [2021-11-23 13:38:59,791 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 13:38:59,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1956318893] [2021-11-23 13:38:59,791 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-23 13:38:59,792 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 13:38:59,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat [2021-11-23 13:38:59,793 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 13:38:59,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-11-23 13:39:00,135 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-23 13:39:00,135 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 13:39:00,158 INFO L263 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 33 conjunts are in the unsatisfiable core [2021-11-23 13:39:00,160 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:39:01,820 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 0 proven. 465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:39:01,821 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:39:05,214 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 0 proven. 465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:39:05,214 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 13:39:05,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1956318893] [2021-11-23 13:39:05,214 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1956318893] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 13:39:05,214 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-23 13:39:05,214 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 34] total 66 [2021-11-23 13:39:05,215 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204560116] [2021-11-23 13:39:05,215 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-23 13:39:05,215 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2021-11-23 13:39:05,216 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 13:39:05,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2021-11-23 13:39:05,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1000, Invalid=3290, Unknown=0, NotChecked=0, Total=4290 [2021-11-23 13:39:05,219 INFO L87 Difference]: Start difference. First operand 3050 states and 4215 transitions. Second operand has 66 states, 66 states have (on average 1.9393939393939394) internal successors, (128), 66 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:42:03,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:42:03,160 INFO L93 Difference]: Finished difference Result 4575 states and 6020 transitions. [2021-11-23 13:42:03,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2021-11-23 13:42:03,161 INFO L78 Accepts]: Start accepts. Automaton has has 66 states, 66 states have (on average 1.9393939393939394) internal successors, (128), 66 states have internal predecessors, (128), 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 94 [2021-11-23 13:42:03,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:42:03,165 INFO L225 Difference]: With dead ends: 4575 [2021-11-23 13:42:03,165 INFO L226 Difference]: Without dead ends: 4575 [2021-11-23 13:42:03,169 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3304 ImplicationChecksByTransitivity, 36.0s TimeCoverageRelationStatistics Valid=3577, Invalid=8413, Unknown=0, NotChecked=0, Total=11990 [2021-11-23 13:42:03,170 INFO L933 BasicCegarLoop]: 1747 mSDtfsCounter, 1361 mSDsluCounter, 59881 mSDsCounter, 0 mSdLazyCounter, 2671 mSolverCounterSat, 1830 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 144.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1361 SdHoareTripleChecker+Valid, 61628 SdHoareTripleChecker+Invalid, 4501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1830 IncrementalHoareTripleChecker+Valid, 2671 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 145.8s IncrementalHoareTripleChecker+Time [2021-11-23 13:42:03,170 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1361 Valid, 61628 Invalid, 4501 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1830 Valid, 2671 Invalid, 0 Unknown, 0 Unchecked, 145.8s Time] [2021-11-23 13:42:03,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4575 states. [2021-11-23 13:42:03,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4575 to 3200. [2021-11-23 13:42:03,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3200 states, 2457 states have (on average 1.7562067562067563) internal successors, (4315), 3199 states have internal predecessors, (4315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:42:03,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3200 states to 3200 states and 4315 transitions. [2021-11-23 13:42:03,226 INFO L78 Accepts]: Start accepts. Automaton has 3200 states and 4315 transitions. Word has length 94 [2021-11-23 13:42:03,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:42:03,227 INFO L470 AbstractCegarLoop]: Abstraction has 3200 states and 4315 transitions. [2021-11-23 13:42:03,227 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 1.9393939393939394) internal successors, (128), 66 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:42:03,227 INFO L276 IsEmpty]: Start isEmpty. Operand 3200 states and 4315 transitions. [2021-11-23 13:42:03,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-11-23 13:42:03,228 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:42:03,229 INFO L514 BasicCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:42:03,247 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (20)] Ended with exit code 0 [2021-11-23 13:42:03,447 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 [2021-11-23 13:42:03,447 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 932 more)] === [2021-11-23 13:42:03,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:42:03,447 INFO L85 PathProgramCache]: Analyzing trace with hash -12810178, now seen corresponding path program 5 times [2021-11-23 13:42:03,448 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 13:42:03,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1435488879] [2021-11-23 13:42:03,448 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-23 13:42:03,449 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 13:42:03,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat [2021-11-23 13:42:03,450 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 13:42:03,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-11-23 13:42:04,903 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 23 check-sat command(s) [2021-11-23 13:42:04,904 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 13:42:04,939 INFO L263 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 53 conjunts are in the unsatisfiable core [2021-11-23 13:42:04,942 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:42:04,952 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-23 13:42:05,175 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-11-23 13:42:05,175 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 20 treesize of output 27 [2021-11-23 13:42:05,217 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 22 [2021-11-23 13:42:05,527 INFO L354 Elim1Store]: treesize reduction 35, result has 20.5 percent of original size [2021-11-23 13:42:05,528 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 36 [2021-11-23 13:42:05,690 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 13:42:05,690 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 60 treesize of output 50 [2021-11-23 13:42:05,840 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 13:42:05,841 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 61 treesize of output 51 [2021-11-23 13:42:05,989 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 13:42:05,989 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2021-11-23 13:42:06,141 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 13:42:06,142 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 60 treesize of output 50 [2021-11-23 13:42:06,287 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 13:42:06,287 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2021-11-23 13:42:06,431 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 13:42:06,432 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 61 treesize of output 51 [2021-11-23 13:42:12,980 WARN L227 SmtUtils]: Spent 6.47s on a formula simplification. DAG size of input: 38 DAG size of output: 18 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-23 13:42:12,981 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 13:42:12,982 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2021-11-23 13:42:17,187 INFO L354 Elim1Store]: treesize reduction 72, result has 24.2 percent of original size [2021-11-23 13:42:17,188 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 53 [2021-11-23 13:42:17,399 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 13:42:17,400 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 60 treesize of output 50 [2021-11-23 13:42:17,568 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 13:42:17,569 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 60 treesize of output 50 [2021-11-23 13:42:21,307 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 13:42:21,307 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 60 treesize of output 50 [2021-11-23 13:42:21,446 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 13:42:21,446 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 60 treesize of output 50 [2021-11-23 13:42:25,253 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 13:42:25,253 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2021-11-23 13:42:25,386 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 13:42:25,387 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2021-11-23 13:42:27,748 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 13:42:27,749 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2021-11-23 13:42:29,556 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 13:42:29,557 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2021-11-23 13:42:29,734 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 13:42:29,735 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 60 treesize of output 50 [2021-11-23 13:42:32,916 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 13:42:32,916 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2021-11-23 13:42:33,081 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 13:42:33,082 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 62 treesize of output 52 [2021-11-23 13:42:35,185 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 13:42:35,185 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 60 treesize of output 50 [2021-11-23 13:42:35,328 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 13:42:35,329 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 60 treesize of output 50 [2021-11-23 13:42:38,194 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 13:42:38,195 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2021-11-23 13:42:38,340 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 13:42:38,341 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 60 treesize of output 50 [2021-11-23 13:42:38,470 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 13:42:38,470 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2021-11-23 13:42:41,103 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 13:42:41,103 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2021-11-23 13:42:41,712 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 13:42:41,713 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 61 treesize of output 51 [2021-11-23 13:42:41,869 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 13:42:41,869 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2021-11-23 13:42:42,967 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 13:42:42,968 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2021-11-23 13:42:43,149 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 13:42:43,149 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 60 treesize of output 50 [2021-11-23 13:42:45,405 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 13:42:45,405 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 60 treesize of output 50 [2021-11-23 13:42:45,571 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 13:42:45,571 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2021-11-23 13:42:49,341 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 13:42:49,342 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2021-11-23 13:42:51,742 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 13:42:51,742 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 60 treesize of output 50 [2021-11-23 13:42:51,903 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 13:42:51,904 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2021-11-23 13:42:52,101 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 13:42:52,102 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2021-11-23 13:42:52,293 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 13:42:52,294 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2021-11-23 13:42:52,452 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 13:42:52,453 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2021-11-23 13:42:55,931 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 13:42:55,931 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2021-11-23 13:43:01,134 WARN L227 SmtUtils]: Spent 5.12s on a formula simplification. DAG size of input: 38 DAG size of output: 22 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-23 13:43:01,135 INFO L354 Elim1Store]: treesize reduction 72, result has 24.2 percent of original size [2021-11-23 13:43:01,135 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 53 [2021-11-23 13:43:02,015 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 13:43:02,015 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2021-11-23 13:43:02,167 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 13:43:02,167 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 61 treesize of output 51 [2021-11-23 13:43:02,321 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 13:43:02,321 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2021-11-23 13:43:02,489 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 13:43:02,489 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 70 treesize of output 51 [2021-11-23 13:43:02,743 INFO L354 Elim1Store]: treesize reduction 44, result has 2.2 percent of original size [2021-11-23 13:43:02,744 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 76 treesize of output 37 [2021-11-23 13:43:02,789 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 43 proven. 44 refuted. 0 times theorem prover too weak. 903 trivial. 0 not checked. [2021-11-23 13:43:02,789 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:43:26,471 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr403#1| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr403#1_194| (_ BitVec 32))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr403#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |v_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr403#1_194| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32))) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))))))))) (_ bv1 1)))) is different from false [2021-11-23 13:43:32,697 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr403#1| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr403#1_198| (_ BitVec 32))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr403#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |v_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr403#1_198| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32))) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))))))) (_ bv1 1)))) is different from false [2021-11-23 13:44:47,898 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr403#1| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr403#1_226| (_ BitVec 32))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr403#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |v_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr403#1_226| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32))) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))))))) (_ bv1 1)))) is different from false [2021-11-23 13:45:29,108 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr403#1| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr403#1_242| (_ BitVec 32))) (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr403#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |v_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr403#1_242| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32))) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))))))))))) is different from false [2021-11-23 13:46:00,947 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr403#1| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr403#1_254| (_ BitVec 32))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr403#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |v_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr403#1_254| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32))) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))))))))) (_ bv1 1)))) is different from false [2021-11-23 13:46:08,894 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr403#1| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr403#1_258| (_ BitVec 32))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr403#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |v_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr403#1_258| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32))) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))))))))) (_ bv1 1)))) is different from false [2021-11-23 13:46:53,604 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr403#1| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr403#1_270| (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset| (_ BitVec 32))) (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (store |c_#memory_$Pointer$.base| .cse0 (store (store (select |c_#memory_$Pointer$.base| .cse0) (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr403#1| |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |v_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr403#1_270| |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))))))))))) is different from false [2021-11-23 13:46:56,538 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 161 proven. 38 refuted. 206 times theorem prover too weak. 336 trivial. 249 not checked. [2021-11-23 13:46:56,538 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 13:46:56,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1435488879] [2021-11-23 13:46:56,539 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1435488879] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 13:46:56,539 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-23 13:46:56,539 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 16] total 24 [2021-11-23 13:46:56,539 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566352863] [2021-11-23 13:46:56,539 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-23 13:46:56,540 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-11-23 13:46:56,540 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 13:46:56,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-11-23 13:46:56,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=233, Unknown=15, NotChecked=266, Total=600 [2021-11-23 13:46:56,541 INFO L87 Difference]: Start difference. First operand 3200 states and 4315 transitions. Second operand has 25 states, 24 states have (on average 6.041666666666667) internal successors, (145), 25 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:47:08,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:47:08,616 INFO L93 Difference]: Finished difference Result 3625 states and 4834 transitions. [2021-11-23 13:47:08,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-23 13:47:08,617 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 6.041666666666667) internal successors, (145), 25 states have internal predecessors, (145), 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 108 [2021-11-23 13:47:08,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:47:08,621 INFO L225 Difference]: With dead ends: 3625 [2021-11-23 13:47:08,621 INFO L226 Difference]: Without dead ends: 3625 [2021-11-23 13:47:08,622 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 116 SyntacticMatches, 80 SemanticMatches, 26 ConstructedPredicates, 7 IntricatePredicates, 0 DeprecatedPredicates, 391 ImplicationChecksByTransitivity, 237.8s TimeCoverageRelationStatistics Valid=121, Invalid=312, Unknown=15, NotChecked=308, Total=756 [2021-11-23 13:47:08,622 INFO L933 BasicCegarLoop]: 1057 mSDtfsCounter, 1247 mSDsluCounter, 9127 mSDsCounter, 0 mSdLazyCounter, 2834 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1247 SdHoareTripleChecker+Valid, 10184 SdHoareTripleChecker+Invalid, 18000 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 2834 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 15151 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2021-11-23 13:47:08,623 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1247 Valid, 10184 Invalid, 18000 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 2834 Invalid, 0 Unknown, 15151 Unchecked, 8.0s Time] [2021-11-23 13:47:08,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3625 states. [2021-11-23 13:47:08,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3625 to 3199. [2021-11-23 13:47:08,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3199 states, 2457 states have (on average 1.7553927553927553) internal successors, (4313), 3198 states have internal predecessors, (4313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:47:08,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3199 states to 3199 states and 4313 transitions. [2021-11-23 13:47:08,678 INFO L78 Accepts]: Start accepts. Automaton has 3199 states and 4313 transitions. Word has length 108 [2021-11-23 13:47:08,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:47:08,678 INFO L470 AbstractCegarLoop]: Abstraction has 3199 states and 4313 transitions. [2021-11-23 13:47:08,679 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 6.041666666666667) internal successors, (145), 25 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:47:08,679 INFO L276 IsEmpty]: Start isEmpty. Operand 3199 states and 4313 transitions. [2021-11-23 13:47:08,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-11-23 13:47:08,680 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:47:08,680 INFO L514 BasicCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:47:08,707 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2021-11-23 13:47:08,895 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 [2021-11-23 13:47:08,896 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 932 more)] === [2021-11-23 13:47:08,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:47:08,896 INFO L85 PathProgramCache]: Analyzing trace with hash -12810177, now seen corresponding path program 1 times [2021-11-23 13:47:08,897 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 13:47:08,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1815143861] [2021-11-23 13:47:08,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:47:08,898 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 13:47:08,898 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat [2021-11-23 13:47:08,899 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 13:47:08,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84513014-c7da-4528-bd28-7106eba9d62f/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2021-11-23 13:47:09,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:47:09,540 INFO L263 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 99 conjunts are in the unsatisfiable core [2021-11-23 13:47:09,546 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:47:09,555 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-23 13:47:09,846 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-23 13:47:09,847 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2021-11-23 13:47:09,859 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-23 13:47:09,897 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-23 13:47:09,909 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 19 [2021-11-23 13:47:10,279 INFO L354 Elim1Store]: treesize reduction 37, result has 19.6 percent of original size [2021-11-23 13:47:10,279 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 68 treesize of output 67 [2021-11-23 13:47:10,320 INFO L354 Elim1Store]: treesize reduction 35, result has 20.5 percent of original size [2021-11-23 13:47:10,320 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 51 [2021-11-23 13:47:12,003 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-23 13:47:12,003 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-23 13:47:12,071 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 13:47:12,071 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-23 13:47:13,726 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-23 13:47:13,727 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-23 13:47:14,614 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 13:47:14,614 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-23 13:47:17,046 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-23 13:47:17,047 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-23 13:47:17,116 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 13:47:17,116 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-23 13:47:18,925 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-23 13:47:18,925 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-23 13:47:18,993 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 13:47:18,994 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-23 13:47:19,193 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-23 13:47:19,194 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-23 13:47:19,989 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 13:47:19,989 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-23 13:47:20,210 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-23 13:47:20,211 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-23 13:47:20,299 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 13:47:20,300 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-23 13:47:22,146 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-23 13:47:22,147 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-23 13:47:23,302 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 13:47:23,302 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-23 13:47:23,553 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-23 13:47:23,554 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-23 13:47:23,644 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 13:47:23,645 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-23 13:47:25,076 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-23 13:47:25,076 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-23 13:47:25,140 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 13:47:25,140 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-23 13:47:25,362 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-23 13:47:25,362 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-23 13:47:26,126 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 13:47:26,126 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-23 13:47:26,347 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-23 13:47:26,347 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-23 13:47:30,140 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 13:47:30,140 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-23 13:47:30,333 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-23 13:47:30,333 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-23 13:47:30,443 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 13:47:30,444 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-23 13:47:32,088 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-23 13:47:32,088 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-23 13:47:34,624 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 13:47:34,625 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-23 13:47:35,424 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-23 13:47:35,425 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-23 13:47:38,353 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 13:47:38,354 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-23 13:47:40,895 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-23 13:47:40,895 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-23 13:47:43,046 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 13:47:43,047 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-23 13:47:45,435 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-23 13:47:45,436 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-23 13:47:45,505 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 13:47:45,505 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-23 13:47:49,103 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-23 13:47:49,104 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-23 13:47:49,859 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 13:47:49,859 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-23 13:47:50,064 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-23 13:47:50,064 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-23 13:47:50,131 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 13:47:50,131 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-23 13:47:52,047 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-23 13:47:52,047 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-23 13:47:53,683 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 13:47:53,683 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-23 13:47:56,389 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-23 13:47:56,390 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-23 13:47:57,698 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 13:47:57,698 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-23 13:47:59,452 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-23 13:47:59,452 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-23 13:48:02,827 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 13:48:02,828 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-23 13:48:03,009 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-23 13:48:03,009 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-23 13:48:07,083 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 13:48:07,084 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-23 13:48:07,965 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-23 13:48:07,965 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-23 13:48:08,745 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 13:48:08,745 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-23 13:48:11,630 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-23 13:48:11,630 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-23 13:48:11,696 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 13:48:11,696 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-23 13:48:14,646 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-23 13:48:14,647 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-23 13:48:14,707 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 13:48:14,708 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-23 13:48:14,906 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-23 13:48:14,907 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-23 13:48:14,987 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 13:48:14,987 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-23 13:48:15,180 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-23 13:48:15,181 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-23 13:48:15,238 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 13:48:15,238 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-23 13:48:15,441 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-23 13:48:15,442 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-23 13:48:16,224 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 13:48:16,225 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-23 13:48:16,408 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-23 13:48:16,409 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-23 13:48:16,468 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 13:48:16,468 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-23 13:48:16,651 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-23 13:48:16,651 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-23 13:48:16,716 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 13:48:16,716 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-23 13:48:17,706 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-23 13:48:17,707 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-23 13:48:17,768 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 13:48:17,769 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-23 13:48:21,316 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-23 13:48:21,317 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-23 13:48:21,380 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 13:48:21,380 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-23 13:48:21,570 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-23 13:48:21,570 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-23 13:48:21,629 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 13:48:21,630 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-23 13:48:22,651 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-23 13:48:22,651 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-23 13:48:22,708 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 13:48:22,708 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-23 13:48:22,883 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-23 13:48:22,883 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-23 13:48:26,623 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 13:48:26,624 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-23 13:48:28,360 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-23 13:48:28,360 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-23 13:48:28,423 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 13:48:28,423 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-23 13:48:29,973 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-23 13:48:29,974 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-23 13:48:30,031 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 13:48:30,031 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-23 13:48:30,240 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-23 13:48:30,240 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-23 13:48:30,297 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 13:48:30,297 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-23 13:48:30,505 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-23 13:48:30,506 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-23 13:48:30,616 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 13:48:30,616 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-23 13:48:30,876 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-23 13:48:30,876 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-23 13:48:32,296 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 13:48:32,297 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-23 13:48:33,140 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-23 13:48:33,141 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-23 13:48:33,855 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 13:48:33,856 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-23 13:48:34,034 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-23 13:48:34,034 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-23 13:48:34,096 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 13:48:34,096 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-23 13:48:34,272 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 13:48:34,272 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 115 treesize of output 78 [2021-11-23 13:48:34,332 INFO L354 Elim1Store]: treesize reduction 104, result has 19.4 percent of original size [2021-11-23 13:48:34,333 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 105 treesize of output 101 [2021-11-23 13:48:34,778 INFO L354 Elim1Store]: treesize reduction 44, result has 2.2 percent of original size [2021-11-23 13:48:34,778 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 113 treesize of output 62 [2021-11-23 13:48:34,799 INFO L354 Elim1Store]: treesize reduction 44, result has 2.2 percent of original size [2021-11-23 13:48:34,800 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 26 [2021-11-23 13:48:34,836 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 43 proven. 44 refuted. 0 times theorem prover too weak. 903 trivial. 0 not checked. [2021-11-23 13:48:34,836 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:48:42,879 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr403#1| (_ BitVec 32)) (v_subst_6 (_ BitVec 32))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (let ((.cse1 ((_ zero_extend 24) ((_ extract 7 0) |c_ULTIMATE.start_#Ultimate.C_memset_#value#1|)))) (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr403#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) .cse1) (bvadd v_subst_6 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) .cse1))) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))) (bvule (bvadd (_ bv16 32) .cse0) (bvadd .cse0 (_ bv20 32))))) (forall ((|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr403#1| (_ BitVec 32)) (v_subst_5 (_ BitVec 32))) (let ((.cse2 (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr403#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|)) (.cse4 (bvadd v_subst_5 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|)) (.cse5 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (let ((.cse3 ((_ zero_extend 24) ((_ extract 7 0) |c_ULTIMATE.start_#Ultimate.C_memset_#value#1|)))) (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) .cse2 .cse3) .cse4 .cse3))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse5) (_ bv20 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) .cse2 (_ bv0 32)) .cse4 (_ bv0 32))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse5)))))) is different from false