./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/verifythis/lcp.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/verifythis/lcp.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1e47fbc54bff4eeebe072cdb8acf7cfe734a91f148fd421ae1769ba3b81a6f5a --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 10:49:15,903 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:49:15,905 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:49:15,934 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:49:15,935 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:49:15,939 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:49:15,945 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:49:15,949 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:49:15,951 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:49:15,957 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:49:15,958 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:49:15,959 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:49:15,960 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:49:15,961 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:49:15,962 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:49:15,963 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:49:15,964 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:49:15,965 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:49:15,967 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:49:15,969 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:49:15,975 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:49:15,978 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:49:15,981 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:49:15,982 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:49:15,989 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:49:15,989 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:49:15,989 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:49:15,990 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:49:15,991 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:49:15,992 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:49:15,993 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:49:15,994 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:49:15,995 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:49:15,996 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:49:15,997 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:49:15,997 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:49:15,998 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:49:15,998 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:49:15,999 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:49:16,000 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:49:16,000 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:49:16,001 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-20 10:49:16,032 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:49:16,032 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:49:16,043 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:49:16,043 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:49:16,044 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 10:49:16,044 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 10:49:16,045 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:49:16,045 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:49:16,045 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:49:16,046 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:49:16,046 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 10:49:16,046 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 10:49:16,047 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 10:49:16,047 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:49:16,047 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 10:49:16,047 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 10:49:16,048 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 10:49:16,048 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 10:49:16,048 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:49:16,048 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:49:16,049 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 10:49:16,049 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:49:16,049 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:49:16,049 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 10:49:16,050 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:49:16,050 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:49:16,050 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 10:49:16,050 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 10:49:16,051 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 10:49:16,051 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 10:49:16,051 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 10:49:16,051 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 10:49:16,052 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 10:49:16,052 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_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1e47fbc54bff4eeebe072cdb8acf7cfe734a91f148fd421ae1769ba3b81a6f5a [2022-11-20 10:49:16,344 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:49:16,378 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:49:16,383 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:49:16,384 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:49:16,385 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:49:16,386 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/verifythis/lcp.c [2022-11-20 10:49:19,529 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:49:19,798 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:49:19,799 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/sv-benchmarks/c/verifythis/lcp.c [2022-11-20 10:49:19,806 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN/data/4d192b645/3044ba92899c44b59e66146876af620f/FLAG5d80dac1c [2022-11-20 10:49:19,823 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN/data/4d192b645/3044ba92899c44b59e66146876af620f [2022-11-20 10:49:19,826 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:49:19,828 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:49:19,830 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:49:19,830 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:49:19,838 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:49:19,839 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:49:19" (1/1) ... [2022-11-20 10:49:19,840 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4757ad5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:49:19, skipping insertion in model container [2022-11-20 10:49:19,841 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:49:19" (1/1) ... [2022-11-20 10:49:19,858 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:49:19,879 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:49:20,045 WARN L237 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_eba92bf7-46b6-479d-99f0-cb55d81b1251/sv-benchmarks/c/verifythis/lcp.c[515,528] [2022-11-20 10:49:20,075 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:49:20,090 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 10:49:20,104 WARN L237 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_eba92bf7-46b6-479d-99f0-cb55d81b1251/sv-benchmarks/c/verifythis/lcp.c[515,528] [2022-11-20 10:49:20,114 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:49:20,129 INFO L208 MainTranslator]: Completed translation [2022-11-20 10:49:20,130 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:49:20 WrapperNode [2022-11-20 10:49:20,130 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 10:49:20,131 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 10:49:20,131 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 10:49:20,132 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 10:49:20,139 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:49:20" (1/1) ... [2022-11-20 10:49:20,163 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:49:20" (1/1) ... [2022-11-20 10:49:20,189 INFO L138 Inliner]: procedures = 20, calls = 29, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 84 [2022-11-20 10:49:20,190 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 10:49:20,190 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 10:49:20,191 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 10:49:20,191 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 10:49:20,202 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:49:20" (1/1) ... [2022-11-20 10:49:20,203 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:49:20" (1/1) ... [2022-11-20 10:49:20,205 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:49:20" (1/1) ... [2022-11-20 10:49:20,206 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:49:20" (1/1) ... [2022-11-20 10:49:20,213 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:49:20" (1/1) ... [2022-11-20 10:49:20,217 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:49:20" (1/1) ... [2022-11-20 10:49:20,219 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:49:20" (1/1) ... [2022-11-20 10:49:20,220 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:49:20" (1/1) ... [2022-11-20 10:49:20,223 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 10:49:20,224 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 10:49:20,224 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 10:49:20,225 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 10:49:20,225 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:49:20" (1/1) ... [2022-11-20 10:49:20,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:49:20,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:49:20,271 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 10:49:20,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 10:49:20,330 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 10:49:20,331 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-20 10:49:20,331 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-20 10:49:20,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 10:49:20,331 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 10:49:20,332 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 10:49:20,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 10:49:20,332 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 10:49:20,333 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-20 10:49:20,333 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-20 10:49:20,333 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 10:49:20,472 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 10:49:20,474 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 10:49:20,844 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 10:49:20,859 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 10:49:20,859 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 10:49:20,862 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:49:20 BoogieIcfgContainer [2022-11-20 10:49:20,862 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 10:49:20,865 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 10:49:20,865 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 10:49:20,869 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 10:49:20,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:49:19" (1/3) ... [2022-11-20 10:49:20,870 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e730184 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:49:20, skipping insertion in model container [2022-11-20 10:49:20,870 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:49:20" (2/3) ... [2022-11-20 10:49:20,871 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e730184 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:49:20, skipping insertion in model container [2022-11-20 10:49:20,871 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:49:20" (3/3) ... [2022-11-20 10:49:20,873 INFO L112 eAbstractionObserver]: Analyzing ICFG lcp.c [2022-11-20 10:49:20,897 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 10:49:20,897 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 10:49:20,958 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 10:49:20,968 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@43171d29, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 10:49:20,968 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 10:49:20,973 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 25 states have internal predecessors, (31), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-20 10:49:20,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-20 10:49:20,983 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:49:20,983 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:49:20,985 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:49:20,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:49:20,996 INFO L85 PathProgramCache]: Analyzing trace with hash 867982546, now seen corresponding path program 1 times [2022-11-20 10:49:21,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:49:21,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646010576] [2022-11-20 10:49:21,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:49:21,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:49:21,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:49:21,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 10:49:21,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:49:21,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-20 10:49:21,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:49:21,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 10:49:21,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:49:21,260 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-20 10:49:21,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:49:21,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646010576] [2022-11-20 10:49:21,262 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646010576] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:49:21,263 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:49:21,263 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:49:21,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547291455] [2022-11-20 10:49:21,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:49:21,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 10:49:21,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:49:21,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 10:49:21,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 10:49:21,329 INFO L87 Difference]: Start difference. First operand has 33 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 25 states have internal predecessors, (31), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-20 10:49:21,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:49:21,371 INFO L93 Difference]: Finished difference Result 63 states and 83 transitions. [2022-11-20 10:49:21,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 10:49:21,376 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 28 [2022-11-20 10:49:21,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:49:21,386 INFO L225 Difference]: With dead ends: 63 [2022-11-20 10:49:21,386 INFO L226 Difference]: Without dead ends: 28 [2022-11-20 10:49:21,391 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 10:49:21,399 INFO L413 NwaCegarLoop]: 38 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, 38 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 [2022-11-20 10:49:21,400 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 10:49:21,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-11-20 10:49:21,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2022-11-20 10:49:21,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 20 states have (on average 1.15) internal successors, (23), 21 states have internal predecessors, (23), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-20 10:49:21,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2022-11-20 10:49:21,447 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 28 [2022-11-20 10:49:21,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:49:21,448 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2022-11-20 10:49:21,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-20 10:49:21,448 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2022-11-20 10:49:21,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-20 10:49:21,450 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:49:21,451 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:49:21,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 10:49:21,452 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:49:21,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:49:21,453 INFO L85 PathProgramCache]: Analyzing trace with hash 1785702985, now seen corresponding path program 1 times [2022-11-20 10:49:21,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:49:21,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545374969] [2022-11-20 10:49:21,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:49:21,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:49:21,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:49:22,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 10:49:22,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:49:22,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-20 10:49:22,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:49:22,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-20 10:49:22,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:49:22,032 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-20 10:49:22,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:49:22,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545374969] [2022-11-20 10:49:22,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545374969] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:49:22,033 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:49:22,033 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 10:49:22,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045796050] [2022-11-20 10:49:22,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:49:22,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 10:49:22,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:49:22,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 10:49:22,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 10:49:22,044 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-20 10:49:22,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:49:22,289 INFO L93 Difference]: Finished difference Result 58 states and 67 transitions. [2022-11-20 10:49:22,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 10:49:22,289 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 30 [2022-11-20 10:49:22,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:49:22,290 INFO L225 Difference]: With dead ends: 58 [2022-11-20 10:49:22,291 INFO L226 Difference]: Without dead ends: 40 [2022-11-20 10:49:22,291 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-20 10:49:22,293 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 53 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:49:22,293 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 82 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 10:49:22,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2022-11-20 10:49:22,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 31. [2022-11-20 10:49:22,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 23 states have (on average 1.173913043478261) internal successors, (27), 24 states have internal predecessors, (27), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-20 10:49:22,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 36 transitions. [2022-11-20 10:49:22,315 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 36 transitions. Word has length 30 [2022-11-20 10:49:22,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:49:22,316 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 36 transitions. [2022-11-20 10:49:22,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-20 10:49:22,316 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 36 transitions. [2022-11-20 10:49:22,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-20 10:49:22,317 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:49:22,317 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:49:22,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 10:49:22,318 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:49:22,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:49:22,318 INFO L85 PathProgramCache]: Analyzing trace with hash 774585735, now seen corresponding path program 1 times [2022-11-20 10:49:22,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:49:22,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141614868] [2022-11-20 10:49:22,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:49:22,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:49:22,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:49:22,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 10:49:22,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:49:22,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-20 10:49:22,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:49:22,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-20 10:49:22,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:49:22,752 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-20 10:49:22,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:49:22,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141614868] [2022-11-20 10:49:22,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141614868] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:49:22,757 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:49:22,758 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-20 10:49:22,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540545479] [2022-11-20 10:49:22,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:49:22,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 10:49:22,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:49:22,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 10:49:22,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-20 10:49:22,761 INFO L87 Difference]: Start difference. First operand 31 states and 36 transitions. Second operand has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 4 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-20 10:49:22,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:49:22,947 INFO L93 Difference]: Finished difference Result 37 states and 41 transitions. [2022-11-20 10:49:22,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 10:49:22,948 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 4 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 30 [2022-11-20 10:49:22,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:49:22,951 INFO L225 Difference]: With dead ends: 37 [2022-11-20 10:49:22,952 INFO L226 Difference]: Without dead ends: 33 [2022-11-20 10:49:22,953 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2022-11-20 10:49:22,956 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 27 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:49:22,958 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 113 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 10:49:22,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-11-20 10:49:22,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2022-11-20 10:49:23,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 25 states have (on average 1.12) internal successors, (28), 25 states have internal predecessors, (28), 5 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-20 10:49:23,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 37 transitions. [2022-11-20 10:49:23,001 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 37 transitions. Word has length 30 [2022-11-20 10:49:23,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:49:23,002 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 37 transitions. [2022-11-20 10:49:23,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 4 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-20 10:49:23,002 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2022-11-20 10:49:23,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-11-20 10:49:23,003 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:49:23,003 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2022-11-20 10:49:23,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 10:49:23,004 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:49:23,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:49:23,005 INFO L85 PathProgramCache]: Analyzing trace with hash -2142420270, now seen corresponding path program 1 times [2022-11-20 10:49:23,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:49:23,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627888354] [2022-11-20 10:49:23,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:49:23,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:49:23,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:49:23,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 10:49:23,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:49:23,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-20 10:49:23,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:49:23,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-20 10:49:23,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:49:23,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-20 10:49:23,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:49:23,616 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-20 10:49:23,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:49:23,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627888354] [2022-11-20 10:49:23,617 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627888354] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:49:23,620 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:49:23,620 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 10:49:23,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17042564] [2022-11-20 10:49:23,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:49:23,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 10:49:23,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:49:23,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 10:49:23,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-20 10:49:23,627 INFO L87 Difference]: Start difference. First operand 33 states and 37 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-20 10:49:23,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:49:23,894 INFO L93 Difference]: Finished difference Result 46 states and 52 transitions. [2022-11-20 10:49:23,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 10:49:23,895 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 37 [2022-11-20 10:49:23,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:49:23,898 INFO L225 Difference]: With dead ends: 46 [2022-11-20 10:49:23,898 INFO L226 Difference]: Without dead ends: 34 [2022-11-20 10:49:23,899 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-11-20 10:49:23,906 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 17 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:49:23,907 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 134 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 10:49:23,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-11-20 10:49:23,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 33. [2022-11-20 10:49:23,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 25 states have (on average 1.12) internal successors, (28), 25 states have internal predecessors, (28), 5 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-20 10:49:23,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 37 transitions. [2022-11-20 10:49:23,921 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 37 transitions. Word has length 37 [2022-11-20 10:49:23,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:49:23,921 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 37 transitions. [2022-11-20 10:49:23,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-20 10:49:23,922 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2022-11-20 10:49:23,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-11-20 10:49:23,925 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:49:23,925 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:49:23,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 10:49:23,926 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:49:23,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:49:23,927 INFO L85 PathProgramCache]: Analyzing trace with hash 874062527, now seen corresponding path program 1 times [2022-11-20 10:49:23,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:49:23,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051102147] [2022-11-20 10:49:23,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:49:23,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:49:23,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:49:24,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 10:49:24,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:49:24,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-20 10:49:24,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:49:24,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-20 10:49:24,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:49:24,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-11-20 10:49:24,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:49:24,178 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-20 10:49:24,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:49:24,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051102147] [2022-11-20 10:49:24,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051102147] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:49:24,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1852789690] [2022-11-20 10:49:24,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:49:24,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:49:24,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:49:24,187 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:49:24,189 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-20 10:49:24,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:49:24,307 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-20 10:49:24,316 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:49:24,391 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2022-11-20 10:49:24,522 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 54 [2022-11-20 10:49:24,547 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 10:49:24,547 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:49:28,741 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1852789690] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:49:28,742 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 10:49:28,742 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2022-11-20 10:49:28,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742725505] [2022-11-20 10:49:28,743 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 10:49:28,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 10:49:28,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:49:28,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 10:49:28,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-11-20 10:49:28,748 INFO L87 Difference]: Start difference. First operand 33 states and 37 transitions. Second operand has 8 states, 8 states have (on average 4.375) internal successors, (35), 8 states have internal predecessors, (35), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-11-20 10:49:28,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:49:28,876 INFO L93 Difference]: Finished difference Result 59 states and 62 transitions. [2022-11-20 10:49:28,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 10:49:28,877 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.375) internal successors, (35), 8 states have internal predecessors, (35), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 40 [2022-11-20 10:49:28,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:49:28,879 INFO L225 Difference]: With dead ends: 59 [2022-11-20 10:49:28,879 INFO L226 Difference]: Without dead ends: 39 [2022-11-20 10:49:28,880 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 72 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2022-11-20 10:49:28,881 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 28 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 6 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:49:28,881 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 107 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 44 Invalid, 0 Unknown, 6 Unchecked, 0.1s Time] [2022-11-20 10:49:28,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-11-20 10:49:28,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 37. [2022-11-20 10:49:28,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 28 states have (on average 1.1071428571428572) internal successors, (31), 28 states have internal predecessors, (31), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-20 10:49:28,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 40 transitions. [2022-11-20 10:49:28,892 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 40 transitions. Word has length 40 [2022-11-20 10:49:28,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:49:28,892 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 40 transitions. [2022-11-20 10:49:28,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.375) internal successors, (35), 8 states have internal predecessors, (35), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-11-20 10:49:28,893 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 40 transitions. [2022-11-20 10:49:28,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-11-20 10:49:28,894 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:49:28,894 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:49:28,907 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-20 10:49:29,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:49:29,101 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:49:29,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:49:29,102 INFO L85 PathProgramCache]: Analyzing trace with hash 1296764353, now seen corresponding path program 1 times [2022-11-20 10:49:29,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:49:29,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128225870] [2022-11-20 10:49:29,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:49:29,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:49:29,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:49:29,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 10:49:29,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:49:29,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-20 10:49:29,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:49:29,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-20 10:49:29,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:49:29,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-11-20 10:49:29,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:49:29,465 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-20 10:49:29,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:49:29,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128225870] [2022-11-20 10:49:29,466 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128225870] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:49:29,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [313192580] [2022-11-20 10:49:29,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:49:29,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:49:29,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:49:29,472 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:49:29,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-20 10:49:29,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:49:29,600 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-20 10:49:29,604 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:49:29,900 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-20 10:49:29,900 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:49:30,187 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-20 10:49:30,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [313192580] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:49:30,187 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 10:49:30,188 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 9 [2022-11-20 10:49:30,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196562355] [2022-11-20 10:49:30,188 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 10:49:30,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-20 10:49:30,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:49:30,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-20 10:49:30,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-20 10:49:30,190 INFO L87 Difference]: Start difference. First operand 37 states and 40 transitions. Second operand has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-20 10:49:30,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:49:30,403 INFO L93 Difference]: Finished difference Result 40 states and 44 transitions. [2022-11-20 10:49:30,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 10:49:30,405 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 40 [2022-11-20 10:49:30,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:49:30,405 INFO L225 Difference]: With dead ends: 40 [2022-11-20 10:49:30,405 INFO L226 Difference]: Without dead ends: 0 [2022-11-20 10:49:30,406 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 83 SyntacticMatches, 3 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2022-11-20 10:49:30,407 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 17 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:49:30,407 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 105 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 10:49:30,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-20 10:49:30,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-20 10:49:30,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:49:30,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-20 10:49:30,408 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 40 [2022-11-20 10:49:30,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:49:30,409 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 10:49:30,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-20 10:49:30,409 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-20 10:49:30,409 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-20 10:49:30,413 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-20 10:49:30,426 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-20 10:49:30,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:49:30,617 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-20 10:49:31,301 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-20 10:49:31,302 INFO L899 garLoopResultBuilder]: For program point L31(lines 31 32) no Hoare annotation was computed. [2022-11-20 10:49:31,302 INFO L895 garLoopResultBuilder]: At program point L27(line 27) the Hoare annotation is: (let ((.cse9 (select |#memory_int| |ULTIMATE.start_check_~a#1.base|)) (.cse10 (* |ULTIMATE.start_check_~i~0#1| 4)) (.cse2 ((as const (Array Int Int)) 0))) (let ((.cse0 (= |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_lcp_~y#1|)) (.cse1 (= .cse2 (select |#memory_int| |ULTIMATE.start_main_~a~0#1.base|))) (.cse3 (= (select .cse9 (+ |ULTIMATE.start_check_~a#1.offset| (* 4 |ULTIMATE.start_check_~x#1|) .cse10)) 0)) (.cse4 (<= |ULTIMATE.start_lcp_~x#1| |ULTIMATE.start_main_~x~0#1|)) (.cse5 (= .cse2 (select |#memory_int| |ULTIMATE.start_main_#t~malloc15#1.base|))) (.cse6 (= |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_lcp_~n#1|)) (.cse7 (or (<= |ULTIMATE.start_main_~n~0#1| (+ |ULTIMATE.start_lcp_~l~0#1| |ULTIMATE.start_main_~y~0#1|)) (<= |ULTIMATE.start_main_~n~0#1| (+ |ULTIMATE.start_lcp_~l~0#1| |ULTIMATE.start_main_~x~0#1|)))) (.cse8 (= (select .cse9 (+ (* 4 |ULTIMATE.start_check_~y#1|) |ULTIMATE.start_check_~a#1.offset| .cse10)) 0))) (or (and (or (<= |ULTIMATE.start_main_~n~0#1| (+ |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_lcp_#res#1|)) (<= |ULTIMATE.start_main_~n~0#1| (+ |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_lcp_#res#1|))) .cse0 .cse1 (or (<= |ULTIMATE.start_check_~n#1| (+ |ULTIMATE.start_check_~l#1| |ULTIMATE.start_check_~x#1|)) (<= |ULTIMATE.start_check_~n#1| (+ |ULTIMATE.start_check_~l#1| |ULTIMATE.start_check_~y#1|))) (= .cse2 (select |#memory_int| |ULTIMATE.start_lcp_~a#1.base|)) .cse3 .cse4 .cse5 .cse6 .cse7 .cse8) (and .cse0 (= |ULTIMATE.start_check_~l#1| 0) .cse1 (or (<= |ULTIMATE.start_check_~n#1| |ULTIMATE.start_check_~x#1|) (<= |ULTIMATE.start_check_~n#1| |ULTIMATE.start_check_~y#1|)) .cse3 .cse4 .cse5 .cse6 (= |ULTIMATE.start_lcp_~l~0#1| 0) .cse7 .cse8 (= |ULTIMATE.start_lcp_#res#1| 0))))) [2022-11-20 10:49:31,303 INFO L899 garLoopResultBuilder]: For program point L27-1(line 27) no Hoare annotation was computed. [2022-11-20 10:49:31,303 INFO L895 garLoopResultBuilder]: At program point L21(lines 16 22) the Hoare annotation is: (let ((.cse6 ((as const (Array Int Int)) 0))) (let ((.cse0 (= |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_lcp_~y#1|)) (.cse1 (= .cse6 (select |#memory_int| |ULTIMATE.start_main_~a~0#1.base|))) (.cse2 (<= |ULTIMATE.start_lcp_~x#1| |ULTIMATE.start_main_~x~0#1|)) (.cse3 (= .cse6 (select |#memory_int| |ULTIMATE.start_main_#t~malloc15#1.base|))) (.cse4 (= |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_lcp_~n#1|)) (.cse5 (or (<= |ULTIMATE.start_main_~n~0#1| (+ |ULTIMATE.start_lcp_~l~0#1| |ULTIMATE.start_main_~y~0#1|)) (<= |ULTIMATE.start_main_~n~0#1| (+ |ULTIMATE.start_lcp_~l~0#1| |ULTIMATE.start_main_~x~0#1|))))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (= |ULTIMATE.start_lcp_~l~0#1| 0) .cse5 (= |ULTIMATE.start_lcp_#res#1| 0)) (and (or (<= |ULTIMATE.start_main_~n~0#1| (+ |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_lcp_#res#1|)) (<= |ULTIMATE.start_main_~n~0#1| (+ |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_lcp_#res#1|))) .cse0 .cse1 (= .cse6 (select |#memory_int| |ULTIMATE.start_lcp_~a#1.base|)) .cse2 .cse3 .cse4 .cse5)))) [2022-11-20 10:49:31,303 INFO L902 garLoopResultBuilder]: At program point L48(lines 35 49) the Hoare annotation is: true [2022-11-20 10:49:31,303 INFO L902 garLoopResultBuilder]: At program point L38(line 38) the Hoare annotation is: true [2022-11-20 10:49:31,303 INFO L899 garLoopResultBuilder]: For program point L38-1(line 38) no Hoare annotation was computed. [2022-11-20 10:49:31,303 INFO L895 garLoopResultBuilder]: At program point L32(line 32) the Hoare annotation is: false [2022-11-20 10:49:31,304 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-20 10:49:31,304 INFO L899 garLoopResultBuilder]: For program point L32-1(line 32) no Hoare annotation was computed. [2022-11-20 10:49:31,304 INFO L899 garLoopResultBuilder]: For program point L-1-1(line -1) no Hoare annotation was computed. [2022-11-20 10:49:31,304 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-20 10:49:31,304 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-20 10:49:31,304 INFO L895 garLoopResultBuilder]: At program point L28(line 28) the Hoare annotation is: (let ((.cse10 (select |#memory_int| |ULTIMATE.start_check_~a#1.base|)) (.cse11 (* |ULTIMATE.start_check_~i~0#1| 4)) (.cse2 ((as const (Array Int Int)) 0))) (let ((.cse0 (= |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_lcp_~y#1|)) (.cse1 (= .cse2 (select |#memory_int| |ULTIMATE.start_main_~a~0#1.base|))) (.cse3 (= (select .cse10 (+ |ULTIMATE.start_check_~a#1.offset| (* 4 |ULTIMATE.start_check_~x#1|) .cse11)) 0)) (.cse4 (<= |ULTIMATE.start_lcp_~x#1| |ULTIMATE.start_main_~x~0#1|)) (.cse5 (= .cse2 (select |#memory_int| |ULTIMATE.start_main_#t~malloc15#1.base|))) (.cse6 (= |ULTIMATE.start_check_#t~mem11#1| |ULTIMATE.start_check_#t~mem10#1|)) (.cse7 (= |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_lcp_~n#1|)) (.cse8 (or (<= |ULTIMATE.start_main_~n~0#1| (+ |ULTIMATE.start_lcp_~l~0#1| |ULTIMATE.start_main_~y~0#1|)) (<= |ULTIMATE.start_main_~n~0#1| (+ |ULTIMATE.start_lcp_~l~0#1| |ULTIMATE.start_main_~x~0#1|)))) (.cse9 (= (select .cse10 (+ (* 4 |ULTIMATE.start_check_~y#1|) |ULTIMATE.start_check_~a#1.offset| .cse11)) 0))) (or (and (or (<= |ULTIMATE.start_main_~n~0#1| (+ |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_lcp_#res#1|)) (<= |ULTIMATE.start_main_~n~0#1| (+ |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_lcp_#res#1|))) .cse0 .cse1 (or (<= |ULTIMATE.start_check_~n#1| (+ |ULTIMATE.start_check_~l#1| |ULTIMATE.start_check_~x#1|)) (<= |ULTIMATE.start_check_~n#1| (+ |ULTIMATE.start_check_~l#1| |ULTIMATE.start_check_~y#1|))) (= .cse2 (select |#memory_int| |ULTIMATE.start_lcp_~a#1.base|)) .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9) (and .cse0 (= |ULTIMATE.start_check_~l#1| 0) .cse1 (or (<= |ULTIMATE.start_check_~n#1| |ULTIMATE.start_check_~x#1|) (<= |ULTIMATE.start_check_~n#1| |ULTIMATE.start_check_~y#1|)) .cse3 .cse4 .cse5 .cse6 .cse7 (= |ULTIMATE.start_lcp_~l~0#1| 0) .cse8 .cse9 (= |ULTIMATE.start_lcp_#res#1| 0))))) [2022-11-20 10:49:31,305 INFO L899 garLoopResultBuilder]: For program point L28-1(line 28) no Hoare annotation was computed. [2022-11-20 10:49:31,305 INFO L899 garLoopResultBuilder]: For program point L24(lines 24 33) no Hoare annotation was computed. [2022-11-20 10:49:31,305 INFO L899 garLoopResultBuilder]: For program point L18-1(line 18) no Hoare annotation was computed. [2022-11-20 10:49:31,305 INFO L899 garLoopResultBuilder]: For program point L18-3(lines 18 20) no Hoare annotation was computed. [2022-11-20 10:49:31,305 INFO L895 garLoopResultBuilder]: At program point L18-5(lines 18 20) the Hoare annotation is: (let ((.cse0 ((as const (Array Int Int)) 0))) (and (= |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_lcp_~y#1|) (= .cse0 (select |#memory_int| |ULTIMATE.start_main_~a~0#1.base|)) (= .cse0 (select |#memory_int| |ULTIMATE.start_lcp_~a#1.base|)) (<= |ULTIMATE.start_lcp_~x#1| |ULTIMATE.start_main_~x~0#1|) (= .cse0 (select |#memory_int| |ULTIMATE.start_main_#t~malloc15#1.base|)) (= |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_lcp_~n#1|))) [2022-11-20 10:49:31,305 INFO L899 garLoopResultBuilder]: For program point L18-6(lines 18 20) no Hoare annotation was computed. [2022-11-20 10:49:31,305 INFO L895 garLoopResultBuilder]: At program point L43(line 43) the Hoare annotation is: (let ((.cse0 ((as const (Array Int Int)) 0))) (and (= .cse0 (select |#memory_int| |ULTIMATE.start_main_~a~0#1.base|)) (= .cse0 (select |#memory_int| |ULTIMATE.start_main_#t~malloc15#1.base|)))) [2022-11-20 10:49:31,306 INFO L899 garLoopResultBuilder]: For program point L43-1(line 43) no Hoare annotation was computed. [2022-11-20 10:49:31,306 INFO L902 garLoopResultBuilder]: At program point assume_abort_if_notENTRY(lines 5 7) the Hoare annotation is: true [2022-11-20 10:49:31,306 INFO L899 garLoopResultBuilder]: For program point L6(line 6) no Hoare annotation was computed. [2022-11-20 10:49:31,306 INFO L899 garLoopResultBuilder]: For program point L6-2(lines 5 7) no Hoare annotation was computed. [2022-11-20 10:49:31,306 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 5 7) no Hoare annotation was computed. [2022-11-20 10:49:31,306 INFO L902 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 12 14) the Hoare annotation is: true [2022-11-20 10:49:31,306 INFO L899 garLoopResultBuilder]: For program point L13(line 13) no Hoare annotation was computed. [2022-11-20 10:49:31,306 INFO L899 garLoopResultBuilder]: For program point L13-1(line 13) no Hoare annotation was computed. [2022-11-20 10:49:31,307 INFO L899 garLoopResultBuilder]: For program point L13-3(lines 12 14) no Hoare annotation was computed. [2022-11-20 10:49:31,307 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 12 14) no Hoare annotation was computed. [2022-11-20 10:49:31,307 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2022-11-20 10:49:31,312 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-11-20 10:49:31,315 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 10:49:31,322 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.IllegalArgumentException: unknown symbol (const Int (Array Int Int)) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:265) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:173) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:173) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:137) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:401) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:1) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpression(ModelTranslationContainer.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpressionToString(ModelTranslationContainer.java:89) at de.uni_freiburg.informatik.ultimate.core.lib.results.InvariantResult.getLongDescription(InvariantResult.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:86) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResultReporter.reportResult(CegarLoopResultReporter.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.createInvariantResults(TraceAbstractionStarter.java:455) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:191) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-20 10:49:31,330 INFO L158 Benchmark]: Toolchain (without parser) took 11502.46ms. Allocated memory was 167.8MB in the beginning and 207.6MB in the end (delta: 39.8MB). Free memory was 127.1MB in the beginning and 63.4MB in the end (delta: 63.6MB). Peak memory consumption was 105.4MB. Max. memory is 16.1GB. [2022-11-20 10:49:31,331 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 167.8MB. Free memory was 138.3MB in the beginning and 138.2MB in the end (delta: 89.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 10:49:31,331 INFO L158 Benchmark]: CACSL2BoogieTranslator took 300.64ms. Allocated memory is still 167.8MB. Free memory was 126.5MB in the beginning and 115.6MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-20 10:49:31,332 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.52ms. Allocated memory is still 167.8MB. Free memory was 115.6MB in the beginning and 113.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 10:49:31,332 INFO L158 Benchmark]: Boogie Preprocessor took 32.83ms. Allocated memory is still 167.8MB. Free memory was 113.9MB in the beginning and 112.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 10:49:31,332 INFO L158 Benchmark]: RCFGBuilder took 637.97ms. Allocated memory is still 167.8MB. Free memory was 112.4MB in the beginning and 99.2MB in the end (delta: 13.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-20 10:49:31,333 INFO L158 Benchmark]: TraceAbstraction took 10465.24ms. Allocated memory was 167.8MB in the beginning and 207.6MB in the end (delta: 39.8MB). Free memory was 98.5MB in the beginning and 63.4MB in the end (delta: 35.0MB). Peak memory consumption was 76.0MB. Max. memory is 16.1GB. [2022-11-20 10:49:31,336 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 167.8MB. Free memory was 138.3MB in the beginning and 138.2MB in the end (delta: 89.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 300.64ms. Allocated memory is still 167.8MB. Free memory was 126.5MB in the beginning and 115.6MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.52ms. Allocated memory is still 167.8MB. Free memory was 115.6MB in the beginning and 113.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.83ms. Allocated memory is still 167.8MB. Free memory was 113.9MB in the beginning and 112.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 637.97ms. Allocated memory is still 167.8MB. Free memory was 112.4MB in the beginning and 99.2MB in the end (delta: 13.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 10465.24ms. Allocated memory was 167.8MB in the beginning and 207.6MB in the end (delta: 39.8MB). Free memory was 98.5MB in the beginning and 63.4MB in the end (delta: 35.0MB). Peak memory consumption was 76.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 13]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 33 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 10.4s, OverallIterations: 6, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 142 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 142 mSDsluCounter, 579 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 6 IncrementalHoareTripleChecker+Unchecked, 414 mSDsCounter, 39 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 302 IncrementalHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 39 mSolverCounterUnsat, 165 mSDtfsCounter, 302 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 244 GetRequests, 192 SyntacticMatches, 4 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 4.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=5, InterpolantAutomatonStates: 39, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 12 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 26 PreInvPairs, 37 NumberOfFragments, 476 HoareAnnotationTreeSize, 26 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 444 FormulaSimplificationTreeSizeReductionInter, 0.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 7.1s InterpolantComputationTime, 285 NumberOfCodeBlocks, 285 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 316 ConstructedInterpolants, 4 QuantifiedInterpolants, 1237 SizeOfPredicates, 33 NumberOfNonLiveVariables, 401 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 9 InterpolantComputations, 4 PerfectInterpolantSequences, 125/135 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - ExceptionOrErrorResult: IllegalArgumentException: unknown symbol (const Int (Array Int Int)) de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: IllegalArgumentException: unknown symbol (const Int (Array Int Int)): de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:265) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-11-20 10:49:31,378 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/verifythis/lcp.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1e47fbc54bff4eeebe072cdb8acf7cfe734a91f148fd421ae1769ba3b81a6f5a --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 10:49:34,128 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:49:34,131 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:49:34,187 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:49:34,188 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:49:34,190 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:49:34,191 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:49:34,194 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:49:34,196 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:49:34,198 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:49:34,199 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:49:34,201 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:49:34,202 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:49:34,203 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:49:34,205 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:49:34,207 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:49:34,208 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:49:34,210 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:49:34,212 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:49:34,215 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:49:34,217 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:49:34,223 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:49:34,225 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:49:34,227 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:49:34,234 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:49:34,241 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:49:34,242 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:49:34,243 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:49:34,244 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:49:34,246 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:49:34,248 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:49:34,249 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:49:34,251 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:49:34,253 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:49:34,255 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:49:34,260 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:49:34,261 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:49:34,262 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:49:34,262 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:49:34,264 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:49:34,265 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:49:34,266 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-11-20 10:49:34,320 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:49:34,320 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:49:34,322 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:49:34,322 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:49:34,324 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 10:49:34,324 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 10:49:34,325 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:49:34,325 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:49:34,325 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:49:34,326 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:49:34,327 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 10:49:34,327 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 10:49:34,328 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:49:34,328 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 10:49:34,328 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 10:49:34,328 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 10:49:34,329 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 10:49:34,329 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 10:49:34,329 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 10:49:34,329 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 10:49:34,330 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:49:34,330 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:49:34,330 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 10:49:34,330 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:49:34,331 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:49:34,331 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 10:49:34,331 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:49:34,332 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:49:34,332 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 10:49:34,332 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 10:49:34,332 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-20 10:49:34,333 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 10:49:34,333 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 10:49:34,333 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 10:49:34,334 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 10:49:34,334 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 10:49:34,334 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_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1e47fbc54bff4eeebe072cdb8acf7cfe734a91f148fd421ae1769ba3b81a6f5a [2022-11-20 10:49:34,834 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:49:34,872 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:49:34,877 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:49:34,879 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:49:34,879 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:49:34,881 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/verifythis/lcp.c [2022-11-20 10:49:38,334 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:49:38,651 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:49:38,652 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/sv-benchmarks/c/verifythis/lcp.c [2022-11-20 10:49:38,659 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN/data/10d97600e/2c249bf9e2104fc49378e08bb08b13e4/FLAGdd11f9ad1 [2022-11-20 10:49:38,676 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN/data/10d97600e/2c249bf9e2104fc49378e08bb08b13e4 [2022-11-20 10:49:38,680 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:49:38,681 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:49:38,683 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:49:38,683 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:49:38,688 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:49:38,689 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:49:38" (1/1) ... [2022-11-20 10:49:38,691 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22a948ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:49:38, skipping insertion in model container [2022-11-20 10:49:38,691 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:49:38" (1/1) ... [2022-11-20 10:49:38,701 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:49:38,719 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:49:38,887 WARN L237 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_eba92bf7-46b6-479d-99f0-cb55d81b1251/sv-benchmarks/c/verifythis/lcp.c[515,528] [2022-11-20 10:49:38,916 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:49:38,946 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 10:49:38,982 WARN L237 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_eba92bf7-46b6-479d-99f0-cb55d81b1251/sv-benchmarks/c/verifythis/lcp.c[515,528] [2022-11-20 10:49:38,999 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:49:39,026 INFO L208 MainTranslator]: Completed translation [2022-11-20 10:49:39,027 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:49:39 WrapperNode [2022-11-20 10:49:39,027 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 10:49:39,028 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 10:49:39,029 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 10:49:39,029 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 10:49:39,038 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:49:39" (1/1) ... [2022-11-20 10:49:39,068 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:49:39" (1/1) ... [2022-11-20 10:49:39,112 INFO L138 Inliner]: procedures = 22, calls = 29, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 79 [2022-11-20 10:49:39,114 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 10:49:39,115 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 10:49:39,116 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 10:49:39,116 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 10:49:39,128 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:49:39" (1/1) ... [2022-11-20 10:49:39,129 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:49:39" (1/1) ... [2022-11-20 10:49:39,141 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:49:39" (1/1) ... [2022-11-20 10:49:39,141 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:49:39" (1/1) ... [2022-11-20 10:49:39,166 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:49:39" (1/1) ... [2022-11-20 10:49:39,170 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:49:39" (1/1) ... [2022-11-20 10:49:39,173 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:49:39" (1/1) ... [2022-11-20 10:49:39,176 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:49:39" (1/1) ... [2022-11-20 10:49:39,179 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 10:49:39,182 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 10:49:39,183 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 10:49:39,186 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 10:49:39,187 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:49:39" (1/1) ... [2022-11-20 10:49:39,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:49:39,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:49:39,232 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 10:49:39,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 10:49:39,297 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 10:49:39,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-20 10:49:39,298 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-20 10:49:39,298 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-20 10:49:39,298 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 10:49:39,298 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-20 10:49:39,299 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 10:49:39,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 10:49:39,299 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-20 10:49:39,300 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-20 10:49:39,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 10:49:39,443 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 10:49:39,446 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 10:49:39,857 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 10:49:39,866 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 10:49:39,867 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 10:49:39,870 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:49:39 BoogieIcfgContainer [2022-11-20 10:49:39,870 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 10:49:39,872 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 10:49:39,874 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 10:49:39,879 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 10:49:39,879 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:49:38" (1/3) ... [2022-11-20 10:49:39,881 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@655616b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:49:39, skipping insertion in model container [2022-11-20 10:49:39,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:49:39" (2/3) ... [2022-11-20 10:49:39,884 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@655616b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:49:39, skipping insertion in model container [2022-11-20 10:49:39,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:49:39" (3/3) ... [2022-11-20 10:49:39,886 INFO L112 eAbstractionObserver]: Analyzing ICFG lcp.c [2022-11-20 10:49:39,910 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 10:49:39,910 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 10:49:39,989 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 10:49:39,999 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@53dd2ca, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 10:49:40,000 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 10:49:40,004 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 25 states have internal predecessors, (31), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-20 10:49:40,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-20 10:49:40,014 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:49:40,015 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:49:40,017 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:49:40,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:49:40,027 INFO L85 PathProgramCache]: Analyzing trace with hash 867982546, now seen corresponding path program 1 times [2022-11-20 10:49:40,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:49:40,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1163446393] [2022-11-20 10:49:40,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:49:40,046 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:49:40,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:49:40,052 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:49:40,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-20 10:49:40,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:49:40,182 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-20 10:49:40,187 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:49:40,220 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 10:49:40,221 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:49:40,222 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:49:40,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1163446393] [2022-11-20 10:49:40,223 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1163446393] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:49:40,223 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:49:40,223 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:49:40,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392022096] [2022-11-20 10:49:40,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:49:40,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 10:49:40,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:49:40,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 10:49:40,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 10:49:40,263 INFO L87 Difference]: Start difference. First operand has 33 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 25 states have internal predecessors, (31), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-20 10:49:40,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:49:40,301 INFO L93 Difference]: Finished difference Result 63 states and 83 transitions. [2022-11-20 10:49:40,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 10:49:40,304 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 28 [2022-11-20 10:49:40,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:49:40,312 INFO L225 Difference]: With dead ends: 63 [2022-11-20 10:49:40,312 INFO L226 Difference]: Without dead ends: 28 [2022-11-20 10:49:40,317 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 10:49:40,323 INFO L413 NwaCegarLoop]: 38 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, 38 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 [2022-11-20 10:49:40,326 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 10:49:40,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-11-20 10:49:40,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2022-11-20 10:49:40,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 20 states have (on average 1.15) internal successors, (23), 21 states have internal predecessors, (23), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-20 10:49:40,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2022-11-20 10:49:40,362 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 28 [2022-11-20 10:49:40,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:49:40,362 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2022-11-20 10:49:40,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-20 10:49:40,363 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2022-11-20 10:49:40,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-20 10:49:40,365 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:49:40,365 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:49:40,382 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-20 10:49:40,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:49:40,577 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:49:40,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:49:40,578 INFO L85 PathProgramCache]: Analyzing trace with hash 1785702985, now seen corresponding path program 1 times [2022-11-20 10:49:40,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:49:40,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1790416665] [2022-11-20 10:49:40,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:49:40,579 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:49:40,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:49:40,581 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:49:40,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-20 10:49:40,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:49:40,688 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 10:49:40,692 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:49:40,818 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-20 10:49:40,818 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:49:40,819 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:49:40,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1790416665] [2022-11-20 10:49:40,819 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1790416665] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:49:40,819 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:49:40,820 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 10:49:40,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430052042] [2022-11-20 10:49:40,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:49:40,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 10:49:40,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:49:40,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 10:49:40,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-20 10:49:40,823 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand has 7 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 7 states have internal predecessors, (20), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-20 10:49:40,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:49:40,976 INFO L93 Difference]: Finished difference Result 45 states and 52 transitions. [2022-11-20 10:49:40,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 10:49:40,977 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 7 states have internal predecessors, (20), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 30 [2022-11-20 10:49:40,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:49:40,978 INFO L225 Difference]: With dead ends: 45 [2022-11-20 10:49:40,978 INFO L226 Difference]: Without dead ends: 31 [2022-11-20 10:49:40,983 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-11-20 10:49:40,985 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 6 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:49:40,985 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 123 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 10:49:40,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-11-20 10:49:40,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2022-11-20 10:49:40,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 23 states have (on average 1.173913043478261) internal successors, (27), 24 states have internal predecessors, (27), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-20 10:49:40,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 36 transitions. [2022-11-20 10:49:40,998 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 36 transitions. Word has length 30 [2022-11-20 10:49:40,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:49:41,000 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 36 transitions. [2022-11-20 10:49:41,000 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 7 states have internal predecessors, (20), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-20 10:49:41,003 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 36 transitions. [2022-11-20 10:49:41,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-20 10:49:41,004 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:49:41,005 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:49:41,027 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-20 10:49:41,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:49:41,211 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:49:41,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:49:41,212 INFO L85 PathProgramCache]: Analyzing trace with hash -964575686, now seen corresponding path program 1 times [2022-11-20 10:49:41,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:49:41,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1594278897] [2022-11-20 10:49:41,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:49:41,213 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:49:41,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:49:41,215 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:49:41,220 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-20 10:49:41,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:49:41,334 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 36 conjunts are in the unsatisfiable core [2022-11-20 10:49:41,340 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:49:42,194 INFO L321 Elim1Store]: treesize reduction 70, result has 9.1 percent of original size [2022-11-20 10:49:42,196 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 42 treesize of output 16 [2022-11-20 10:49:42,349 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-20 10:49:42,349 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:49:46,908 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:49:46,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1594278897] [2022-11-20 10:49:46,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1594278897] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:49:46,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [476281890] [2022-11-20 10:49:46,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:49:46,909 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-20 10:49:46,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN/cvc4 [2022-11-20 10:49:46,957 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-20 10:49:46,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2022-11-20 10:49:47,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:49:47,162 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-20 10:49:47,165 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:49:47,193 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2022-11-20 10:49:49,364 WARN L859 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_1| (_ BitVec 32))) (= ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32)) (select |c_#memory_int| |v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_1|))) is different from true [2022-11-20 10:49:49,622 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 54 [2022-11-20 10:49:49,710 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-20 10:49:49,710 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:50:08,337 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [476281890] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:50:08,337 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 10:50:08,337 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 7] total 20 [2022-11-20 10:50:08,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685907351] [2022-11-20 10:50:08,338 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 10:50:08,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-20 10:50:08,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:50:08,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-20 10:50:08,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=535, Unknown=12, NotChecked=46, Total=650 [2022-11-20 10:50:08,341 INFO L87 Difference]: Start difference. First operand 31 states and 36 transitions. Second operand has 20 states, 18 states have (on average 2.3333333333333335) internal successors, (42), 18 states have internal predecessors, (42), 6 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-20 10:50:27,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:50:27,040 INFO L93 Difference]: Finished difference Result 71 states and 81 transitions. [2022-11-20 10:50:27,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-20 10:50:27,041 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 18 states have (on average 2.3333333333333335) internal successors, (42), 18 states have internal predecessors, (42), 6 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Word has length 33 [2022-11-20 10:50:27,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:50:27,043 INFO L225 Difference]: With dead ends: 71 [2022-11-20 10:50:27,043 INFO L226 Difference]: Without dead ends: 53 [2022-11-20 10:50:27,044 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 64 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 43.5s TimeCoverageRelationStatistics Valid=219, Invalid=1488, Unknown=19, NotChecked=80, Total=1806 [2022-11-20 10:50:27,045 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 89 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 79 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-20 10:50:27,046 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 225 Invalid, 468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 370 Invalid, 0 Unknown, 79 Unchecked, 1.0s Time] [2022-11-20 10:50:27,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-11-20 10:50:27,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 48. [2022-11-20 10:50:27,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 36 states have (on average 1.1666666666666667) internal successors, (42), 38 states have internal predecessors, (42), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-20 10:50:27,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 55 transitions. [2022-11-20 10:50:27,059 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 55 transitions. Word has length 33 [2022-11-20 10:50:27,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:50:27,060 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 55 transitions. [2022-11-20 10:50:27,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 18 states have (on average 2.3333333333333335) internal successors, (42), 18 states have internal predecessors, (42), 6 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-20 10:50:27,060 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 55 transitions. [2022-11-20 10:50:27,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-20 10:50:27,061 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:50:27,062 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:50:27,085 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-20 10:50:27,287 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2022-11-20 10:50:27,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN/cvc4 --incremental --print-success --lang smt [2022-11-20 10:50:27,486 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:50:27,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:50:27,486 INFO L85 PathProgramCache]: Analyzing trace with hash -436474905, now seen corresponding path program 1 times [2022-11-20 10:50:27,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:50:27,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1492239617] [2022-11-20 10:50:27,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:50:27,488 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:50:27,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:50:27,489 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:50:27,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-20 10:50:27,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:50:27,725 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 53 conjunts are in the unsatisfiable core [2022-11-20 10:50:27,729 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:50:33,932 INFO L321 Elim1Store]: treesize reduction 104, result has 39.9 percent of original size [2022-11-20 10:50:33,932 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 61 treesize of output 81 [2022-11-20 10:50:34,409 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-20 10:50:34,409 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:50:39,271 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:50:39,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1492239617] [2022-11-20 10:50:39,272 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1492239617] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:50:39,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [786612186] [2022-11-20 10:50:39,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:50:39,273 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-20 10:50:39,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN/cvc4 [2022-11-20 10:50:39,279 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-20 10:50:39,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2022-11-20 10:50:39,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:50:39,414 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-20 10:50:39,417 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:50:39,421 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2022-11-20 10:50:41,687 WARN L859 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_2| (_ BitVec 32))) (= ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32)) (select |c_#memory_int| |v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_2|))) is different from true [2022-11-20 10:50:44,065 WARN L859 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_check_~a#1.base_BEFORE_CALL_3| (_ BitVec 32))) (= ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32)) (select |c_#memory_int| |v_ULTIMATE.start_check_~a#1.base_BEFORE_CALL_3|))) is different from true [2022-11-20 10:50:44,258 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 29 [2022-11-20 10:50:44,437 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 4 not checked. [2022-11-20 10:50:44,437 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:50:54,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [786612186] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:50:54,772 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 10:50:54,772 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 10] total 27 [2022-11-20 10:50:54,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154490562] [2022-11-20 10:50:54,773 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 10:50:54,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-11-20 10:50:54,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:50:54,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-11-20 10:50:54,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=796, Unknown=9, NotChecked=114, Total=992 [2022-11-20 10:50:54,774 INFO L87 Difference]: Start difference. First operand 48 states and 55 transitions. Second operand has 27 states, 23 states have (on average 1.8695652173913044) internal successors, (43), 23 states have internal predecessors, (43), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) [2022-11-20 10:51:11,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:51:11,407 INFO L93 Difference]: Finished difference Result 69 states and 78 transitions. [2022-11-20 10:51:11,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-11-20 10:51:11,408 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 23 states have (on average 1.8695652173913044) internal successors, (43), 23 states have internal predecessors, (43), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) Word has length 36 [2022-11-20 10:51:11,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:51:11,410 INFO L225 Difference]: With dead ends: 69 [2022-11-20 10:51:11,410 INFO L226 Difference]: Without dead ends: 67 [2022-11-20 10:51:11,412 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 49 SyntacticMatches, 4 SemanticMatches, 47 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 368 ImplicationChecksByTransitivity, 40.2s TimeCoverageRelationStatistics Valid=187, Invalid=1971, Unknown=12, NotChecked=182, Total=2352 [2022-11-20 10:51:11,413 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 23 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 403 SdHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 337 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-20 10:51:11,413 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 403 Invalid, 564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 225 Invalid, 0 Unknown, 337 Unchecked, 0.5s Time] [2022-11-20 10:51:11,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2022-11-20 10:51:11,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 55. [2022-11-20 10:51:11,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 42 states have (on average 1.1666666666666667) internal successors, (49), 44 states have internal predecessors, (49), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-20 10:51:11,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 62 transitions. [2022-11-20 10:51:11,428 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 62 transitions. Word has length 36 [2022-11-20 10:51:11,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:51:11,428 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 62 transitions. [2022-11-20 10:51:11,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 23 states have (on average 1.8695652173913044) internal successors, (43), 23 states have internal predecessors, (43), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) [2022-11-20 10:51:11,429 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 62 transitions. [2022-11-20 10:51:11,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-20 10:51:11,430 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:51:11,430 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:51:11,443 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-20 10:51:11,633 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2022-11-20 10:51:11,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN/cvc4 --incremental --print-success --lang smt [2022-11-20 10:51:11,831 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:51:11,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:51:11,832 INFO L85 PathProgramCache]: Analyzing trace with hash -2024822807, now seen corresponding path program 2 times [2022-11-20 10:51:11,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:51:11,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [865721495] [2022-11-20 10:51:11,833 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 10:51:11,833 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:51:11,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:51:11,835 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:51:11,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-20 10:51:11,933 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-20 10:51:11,933 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 10:51:11,938 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:51:11,940 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:51:11,951 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-20 10:51:11,952 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:51:11,952 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:51:11,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [865721495] [2022-11-20 10:51:11,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [865721495] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:51:11,953 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:51:11,953 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:51:11,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804592629] [2022-11-20 10:51:11,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:51:11,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:51:11,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:51:11,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:51:11,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:51:11,957 INFO L87 Difference]: Start difference. First operand 55 states and 62 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-20 10:51:11,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:51:11,996 INFO L93 Difference]: Finished difference Result 93 states and 106 transitions. [2022-11-20 10:51:11,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:51:11,997 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 36 [2022-11-20 10:51:11,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:51:12,002 INFO L225 Difference]: With dead ends: 93 [2022-11-20 10:51:12,002 INFO L226 Difference]: Without dead ends: 55 [2022-11-20 10:51:12,005 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:51:12,006 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 0 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 10:51:12,009 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 57 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 10:51:12,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2022-11-20 10:51:12,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2022-11-20 10:51:12,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 42 states have (on average 1.0952380952380953) internal successors, (46), 44 states have internal predecessors, (46), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-20 10:51:12,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 59 transitions. [2022-11-20 10:51:12,027 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 59 transitions. Word has length 36 [2022-11-20 10:51:12,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:51:12,030 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 59 transitions. [2022-11-20 10:51:12,030 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-20 10:51:12,030 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 59 transitions. [2022-11-20 10:51:12,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-20 10:51:12,039 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:51:12,040 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:51:12,060 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-20 10:51:12,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:51:12,251 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:51:12,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:51:12,252 INFO L85 PathProgramCache]: Analyzing trace with hash 1337034520, now seen corresponding path program 3 times [2022-11-20 10:51:12,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:51:12,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [256030263] [2022-11-20 10:51:12,253 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-20 10:51:12,253 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:51:12,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:51:12,254 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:51:12,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-20 10:51:12,381 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-20 10:51:12,381 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 10:51:12,386 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-20 10:51:12,389 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:51:12,398 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2022-11-20 10:51:14,430 WARN L859 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_3| (_ BitVec 32))) (= ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32)) (select |c_#memory_int| |v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_3|))) is different from true [2022-11-20 10:51:16,523 WARN L859 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_check_~a#1.base_BEFORE_CALL_4| (_ BitVec 32))) (= ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32)) (select |c_#memory_int| |v_ULTIMATE.start_check_~a#1.base_BEFORE_CALL_4|))) is different from true [2022-11-20 10:51:16,557 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 29 [2022-11-20 10:51:16,618 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 4 not checked. [2022-11-20 10:51:16,618 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:51:22,761 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:51:22,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [256030263] [2022-11-20 10:51:22,761 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [256030263] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:51:22,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [547355205] [2022-11-20 10:51:22,762 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-20 10:51:22,762 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-20 10:51:22,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN/cvc4 [2022-11-20 10:51:22,763 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-20 10:51:22,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2022-11-20 10:51:22,905 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-20 10:51:22,905 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 10:51:22,906 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-20 10:51:22,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:51:22,917 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2022-11-20 10:51:24,932 WARN L859 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_4| (_ BitVec 32))) (= ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32)) (select |c_#memory_int| |v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_4|))) is different from true [2022-11-20 10:51:27,006 WARN L859 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_check_~a#1.base_BEFORE_CALL_5| (_ BitVec 32))) (= ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32)) (select |c_#memory_int| |v_ULTIMATE.start_check_~a#1.base_BEFORE_CALL_5|))) is different from true [2022-11-20 10:51:27,052 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 29 [2022-11-20 10:51:27,073 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 4 not checked. [2022-11-20 10:51:27,074 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:51:27,116 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [547355205] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:51:27,116 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 10:51:27,116 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 12 [2022-11-20 10:51:27,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748675901] [2022-11-20 10:51:27,117 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 10:51:27,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-20 10:51:27,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:51:27,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-20 10:51:27,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=108, Unknown=7, NotChecked=92, Total=240 [2022-11-20 10:51:27,118 INFO L87 Difference]: Start difference. First operand 55 states and 59 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 11 states have internal predecessors, (31), 4 states have call successors, (6), 6 states have call predecessors, (6), 5 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2022-11-20 10:51:31,186 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse0 ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32)))) (and (exists ((|v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_3| (_ BitVec 32))) (= .cse0 (select |c_#memory_int| |v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_3|))) (exists ((|v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_4| (_ BitVec 32))) (= .cse0 (select |c_#memory_int| |v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_4|))))) is different from true [2022-11-20 10:51:35,278 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse0 ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32)))) (and (exists ((|v_ULTIMATE.start_check_~a#1.base_BEFORE_CALL_5| (_ BitVec 32))) (= .cse0 (select |c_#memory_int| |v_ULTIMATE.start_check_~a#1.base_BEFORE_CALL_5|))) (exists ((|v_ULTIMATE.start_check_~a#1.base_BEFORE_CALL_4| (_ BitVec 32))) (= .cse0 (select |c_#memory_int| |v_ULTIMATE.start_check_~a#1.base_BEFORE_CALL_4|))))) is different from true [2022-11-20 10:51:35,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:51:35,374 INFO L93 Difference]: Finished difference Result 61 states and 64 transitions. [2022-11-20 10:51:35,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-20 10:51:35,375 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 11 states have internal predecessors, (31), 4 states have call successors, (6), 6 states have call predecessors, (6), 5 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 39 [2022-11-20 10:51:35,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:51:35,376 INFO L225 Difference]: With dead ends: 61 [2022-11-20 10:51:35,376 INFO L226 Difference]: Without dead ends: 57 [2022-11-20 10:51:35,377 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 72 SyntacticMatches, 4 SemanticMatches, 20 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 22.3s TimeCoverageRelationStatistics Valid=58, Invalid=195, Unknown=11, NotChecked=198, Total=462 [2022-11-20 10:51:35,378 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 8 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 183 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:51:35,378 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 131 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 52 Invalid, 0 Unknown, 183 Unchecked, 0.1s Time] [2022-11-20 10:51:35,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-11-20 10:51:35,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 41. [2022-11-20 10:51:35,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 31 states have (on average 1.032258064516129) internal successors, (32), 31 states have internal predecessors, (32), 5 states have call successors, (5), 5 states have call predecessors, (5), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-20 10:51:35,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 41 transitions. [2022-11-20 10:51:35,388 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 41 transitions. Word has length 39 [2022-11-20 10:51:35,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:51:35,388 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 41 transitions. [2022-11-20 10:51:35,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 11 states have internal predecessors, (31), 4 states have call successors, (6), 6 states have call predecessors, (6), 5 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2022-11-20 10:51:35,389 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 41 transitions. [2022-11-20 10:51:35,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-11-20 10:51:35,390 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:51:35,390 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:51:35,394 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2022-11-20 10:51:35,610 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-20 10:51:35,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN/cvc4 --incremental --print-success --lang smt,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:51:35,793 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:51:35,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:51:35,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1296764353, now seen corresponding path program 1 times [2022-11-20 10:51:35,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:51:35,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [294066166] [2022-11-20 10:51:35,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:51:35,795 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:51:35,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:51:35,796 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:51:35,801 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-11-20 10:51:36,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:51:36,209 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 30 conjunts are in the unsatisfiable core [2022-11-20 10:51:36,212 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:51:38,191 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-20 10:51:38,191 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:51:40,658 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-20 10:51:40,658 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:51:40,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [294066166] [2022-11-20 10:51:40,659 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [294066166] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:51:40,659 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 10:51:40,659 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 10] total 22 [2022-11-20 10:51:40,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403897270] [2022-11-20 10:51:40,659 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 10:51:40,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-20 10:51:40,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:51:40,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-20 10:51:40,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=374, Unknown=0, NotChecked=0, Total=462 [2022-11-20 10:51:40,661 INFO L87 Difference]: Start difference. First operand 41 states and 41 transitions. Second operand has 22 states, 22 states have (on average 1.9090909090909092) internal successors, (42), 21 states have internal predecessors, (42), 5 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2022-11-20 10:51:50,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:51:50,174 INFO L93 Difference]: Finished difference Result 80 states and 88 transitions. [2022-11-20 10:51:50,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-11-20 10:51:50,176 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 1.9090909090909092) internal successors, (42), 21 states have internal predecessors, (42), 5 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) Word has length 40 [2022-11-20 10:51:50,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:51:50,177 INFO L225 Difference]: With dead ends: 80 [2022-11-20 10:51:50,177 INFO L226 Difference]: Without dead ends: 51 [2022-11-20 10:51:50,179 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 319 ImplicationChecksByTransitivity, 10.6s TimeCoverageRelationStatistics Valid=373, Invalid=1187, Unknown=0, NotChecked=0, Total=1560 [2022-11-20 10:51:50,180 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 119 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-20 10:51:50,180 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 216 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-20 10:51:50,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-11-20 10:51:50,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 50. [2022-11-20 10:51:50,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 40 states have (on average 1.025) internal successors, (41), 40 states have internal predecessors, (41), 5 states have call successors, (5), 5 states have call predecessors, (5), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-20 10:51:50,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 50 transitions. [2022-11-20 10:51:50,191 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 50 transitions. Word has length 40 [2022-11-20 10:51:50,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:51:50,191 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 50 transitions. [2022-11-20 10:51:50,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 1.9090909090909092) internal successors, (42), 21 states have internal predecessors, (42), 5 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2022-11-20 10:51:50,192 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 50 transitions. [2022-11-20 10:51:50,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-11-20 10:51:50,192 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:51:50,193 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:51:50,203 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-11-20 10:51:50,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:51:50,395 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:51:50,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:51:50,396 INFO L85 PathProgramCache]: Analyzing trace with hash 1272141330, now seen corresponding path program 2 times [2022-11-20 10:51:50,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:51:50,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [114031203] [2022-11-20 10:51:50,396 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 10:51:50,397 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:51:50,397 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:51:50,398 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:51:50,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-11-20 10:51:50,977 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-20 10:51:50,977 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 10:51:50,984 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 33 conjunts are in the unsatisfiable core [2022-11-20 10:51:50,986 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:51:53,076 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 2 proven. 36 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-20 10:51:53,076 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:51:56,956 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 2 proven. 30 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-20 10:51:56,957 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:51:56,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [114031203] [2022-11-20 10:51:56,957 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [114031203] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:51:56,957 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 10:51:56,958 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 13] total 28 [2022-11-20 10:51:56,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896260912] [2022-11-20 10:51:56,958 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 10:51:56,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-11-20 10:51:56,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:51:56,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-11-20 10:51:56,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=142, Invalid=614, Unknown=0, NotChecked=0, Total=756 [2022-11-20 10:51:56,961 INFO L87 Difference]: Start difference. First operand 50 states and 50 transitions. Second operand has 28 states, 28 states have (on average 2.142857142857143) internal successors, (60), 27 states have internal predecessors, (60), 5 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2022-11-20 10:52:37,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:52:37,081 INFO L93 Difference]: Finished difference Result 122 states and 139 transitions. [2022-11-20 10:52:37,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-11-20 10:52:37,083 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 2.142857142857143) internal successors, (60), 27 states have internal predecessors, (60), 5 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) Word has length 49 [2022-11-20 10:52:37,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:52:37,084 INFO L225 Difference]: With dead ends: 122 [2022-11-20 10:52:37,084 INFO L226 Difference]: Without dead ends: 69 [2022-11-20 10:52:37,086 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1171 ImplicationChecksByTransitivity, 40.1s TimeCoverageRelationStatistics Valid=1011, Invalid=3410, Unknown=1, NotChecked=0, Total=4422 [2022-11-20 10:52:37,087 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 297 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 553 mSolverCounterSat, 141 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 141 IncrementalHoareTripleChecker+Valid, 553 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-11-20 10:52:37,087 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [300 Valid, 228 Invalid, 694 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [141 Valid, 553 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-11-20 10:52:37,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2022-11-20 10:52:37,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 68. [2022-11-20 10:52:37,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 58 states have (on average 1.0172413793103448) internal successors, (59), 58 states have internal predecessors, (59), 5 states have call successors, (5), 5 states have call predecessors, (5), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-20 10:52:37,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 68 transitions. [2022-11-20 10:52:37,105 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 68 transitions. Word has length 49 [2022-11-20 10:52:37,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:52:37,105 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 68 transitions. [2022-11-20 10:52:37,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 2.142857142857143) internal successors, (60), 27 states have internal predecessors, (60), 5 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2022-11-20 10:52:37,106 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 68 transitions. [2022-11-20 10:52:37,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-20 10:52:37,107 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:52:37,107 INFO L195 NwaCegarLoop]: trace histogram [11, 10, 10, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:52:37,123 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-11-20 10:52:37,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:52:37,321 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:52:37,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:52:37,321 INFO L85 PathProgramCache]: Analyzing trace with hash -2075652366, now seen corresponding path program 3 times [2022-11-20 10:52:37,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:52:37,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [880774832] [2022-11-20 10:52:37,322 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-20 10:52:37,322 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:52:37,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:52:37,323 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:52:37,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-11-20 10:53:01,000 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-20 10:53:01,000 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 10:53:01,106 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-20 10:53:01,108 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:53:02,039 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 8 proven. 20 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-11-20 10:53:02,039 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:53:05,327 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 8 proven. 20 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-11-20 10:53:05,328 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:53:05,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [880774832] [2022-11-20 10:53:05,328 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [880774832] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:53:05,328 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 10:53:05,328 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 16 [2022-11-20 10:53:05,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554260790] [2022-11-20 10:53:05,329 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 10:53:05,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-20 10:53:05,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:53:05,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-20 10:53:05,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-11-20 10:53:05,331 INFO L87 Difference]: Start difference. First operand 68 states and 68 transitions. Second operand has 16 states, 15 states have (on average 2.8) internal successors, (42), 16 states have internal predecessors, (42), 5 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) [2022-11-20 10:53:06,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:53:06,894 INFO L93 Difference]: Finished difference Result 68 states and 68 transitions. [2022-11-20 10:53:06,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-20 10:53:06,897 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.8) internal successors, (42), 16 states have internal predecessors, (42), 5 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) Word has length 67 [2022-11-20 10:53:06,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:53:06,897 INFO L225 Difference]: With dead ends: 68 [2022-11-20 10:53:06,897 INFO L226 Difference]: Without dead ends: 0 [2022-11-20 10:53:06,898 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=127, Invalid=473, Unknown=0, NotChecked=0, Total=600 [2022-11-20 10:53:06,899 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 25 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 9 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-20 10:53:06,899 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 107 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 129 Invalid, 0 Unknown, 9 Unchecked, 0.5s Time] [2022-11-20 10:53:06,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-20 10:53:06,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-20 10:53:06,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:53:06,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-20 10:53:06,901 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 67 [2022-11-20 10:53:06,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:53:06,901 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 10:53:06,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.8) internal successors, (42), 16 states have internal predecessors, (42), 5 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) [2022-11-20 10:53:06,901 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-20 10:53:06,902 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-20 10:53:06,904 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-20 10:53:06,924 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-11-20 10:53:07,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:53:07,112 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-20 10:53:32,411 WARN L233 SmtUtils]: Spent 21.58s on a formula simplification. DAG size of input: 133 DAG size of output: 27 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2022-11-20 10:53:37,410 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-20 10:53:37,410 INFO L899 garLoopResultBuilder]: For program point L31(lines 31 32) no Hoare annotation was computed. [2022-11-20 10:53:37,411 INFO L895 garLoopResultBuilder]: At program point L27(line 27) the Hoare annotation is: (or (let ((.cse0 ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32)))) (and (bvsge |ULTIMATE.start_main_~x~0#1| (_ bv0 32)) (or (not (bvslt (bvadd |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_lcp_~l~0#1|) |ULTIMATE.start_main_~n~0#1|)) (not (bvslt (bvadd |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_lcp_~l~0#1|) |ULTIMATE.start_main_~n~0#1|))) (= .cse0 (select |#memory_int| |ULTIMATE.start_main_~a~0#1.base|)) (bvsge |ULTIMATE.start_main_~n~0#1| (_ bv0 32)) (or (not (bvslt (bvadd |ULTIMATE.start_check_~l#1| |ULTIMATE.start_check_~x#1|) |ULTIMATE.start_check_~n#1|)) (not (bvslt (bvadd |ULTIMATE.start_check_~l#1| |ULTIMATE.start_check_~y#1|) |ULTIMATE.start_check_~n#1|))) (bvslt |ULTIMATE.start_main_~n~0#1| (_ bv1073741824 32)) (bvsge |ULTIMATE.start_main_~y~0#1| (_ bv0 32)) (= |ULTIMATE.start_main_~a~0#1.offset| (_ bv0 32)) (= .cse0 (select |#memory_int| |ULTIMATE.start_lcp_~a#1.base|)) (or (not (bvslt (bvadd |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_lcp_#res#1|) |ULTIMATE.start_main_~n~0#1|)) (not (bvslt (bvadd |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_lcp_#res#1|) |ULTIMATE.start_main_~n~0#1|))) (= .cse0 (select |#memory_int| |ULTIMATE.start_check_~a#1.base|)))) (and (= (_ bv0 32) |ULTIMATE.start_lcp_~l~0#1|) (= |ULTIMATE.start_check_~l#1| (_ bv0 32)) (= |ULTIMATE.start_lcp_#res#1| (_ bv0 32)))) [2022-11-20 10:53:37,411 INFO L899 garLoopResultBuilder]: For program point L27-1(line 27) no Hoare annotation was computed. [2022-11-20 10:53:37,411 INFO L895 garLoopResultBuilder]: At program point L21(lines 16 22) the Hoare annotation is: (or (and (= (_ bv0 32) |ULTIMATE.start_lcp_~l~0#1|) (= |ULTIMATE.start_lcp_#res#1| (_ bv0 32))) (let ((.cse0 ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32)))) (and (bvsge |ULTIMATE.start_main_~x~0#1| (_ bv0 32)) (or (not (bvslt (bvadd |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_lcp_~l~0#1|) |ULTIMATE.start_main_~n~0#1|)) (not (bvslt (bvadd |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_lcp_~l~0#1|) |ULTIMATE.start_main_~n~0#1|))) (= .cse0 (select |#memory_int| |ULTIMATE.start_main_~a~0#1.base|)) (bvsge |ULTIMATE.start_main_~n~0#1| (_ bv0 32)) (bvslt |ULTIMATE.start_main_~n~0#1| (_ bv1073741824 32)) (bvsge |ULTIMATE.start_main_~y~0#1| (_ bv0 32)) (= |ULTIMATE.start_main_~a~0#1.offset| (_ bv0 32)) (= .cse0 (select |#memory_int| |ULTIMATE.start_lcp_~a#1.base|)) (or (not (bvslt (bvadd |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_lcp_#res#1|) |ULTIMATE.start_main_~n~0#1|)) (not (bvslt (bvadd |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_lcp_#res#1|) |ULTIMATE.start_main_~n~0#1|)))))) [2022-11-20 10:53:37,411 INFO L902 garLoopResultBuilder]: At program point L48(lines 35 49) the Hoare annotation is: true [2022-11-20 10:53:37,412 INFO L902 garLoopResultBuilder]: At program point L38(line 38) the Hoare annotation is: true [2022-11-20 10:53:37,412 INFO L899 garLoopResultBuilder]: For program point L38-1(line 38) no Hoare annotation was computed. [2022-11-20 10:53:37,412 INFO L895 garLoopResultBuilder]: At program point L32(line 32) the Hoare annotation is: false [2022-11-20 10:53:37,412 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-20 10:53:37,412 INFO L899 garLoopResultBuilder]: For program point L32-1(line 32) no Hoare annotation was computed. [2022-11-20 10:53:37,412 INFO L899 garLoopResultBuilder]: For program point L-1-1(line -1) no Hoare annotation was computed. [2022-11-20 10:53:37,413 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-20 10:53:37,413 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-20 10:53:37,413 INFO L895 garLoopResultBuilder]: At program point L28(line 28) the Hoare annotation is: (let ((.cse0 ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32)))) (and (bvsge |ULTIMATE.start_main_~x~0#1| (_ bv0 32)) (or (not (bvslt (bvadd |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_lcp_~l~0#1|) |ULTIMATE.start_main_~n~0#1|)) (not (bvslt (bvadd |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_lcp_~l~0#1|) |ULTIMATE.start_main_~n~0#1|))) (= .cse0 (select |#memory_int| |ULTIMATE.start_main_~a~0#1.base|)) (bvsge |ULTIMATE.start_main_~n~0#1| (_ bv0 32)) (or (not (bvslt (bvadd |ULTIMATE.start_check_~l#1| |ULTIMATE.start_check_~x#1|) |ULTIMATE.start_check_~n#1|)) (not (bvslt (bvadd |ULTIMATE.start_check_~l#1| |ULTIMATE.start_check_~y#1|) |ULTIMATE.start_check_~n#1|))) (bvslt |ULTIMATE.start_main_~n~0#1| (_ bv1073741824 32)) (bvsge |ULTIMATE.start_main_~y~0#1| (_ bv0 32)) (exists ((|ULTIMATE.start_check_~i~0#1| (_ BitVec 32)) (|ULTIMATE.start_check_~x#1| (_ BitVec 32)) (|ULTIMATE.start_check_~a#1.offset| (_ BitVec 32)) (|ULTIMATE.start_check_~y#1| (_ BitVec 32))) (let ((.cse1 (bvmul |ULTIMATE.start_check_~i~0#1| (_ bv4 32)))) (and (= (select .cse0 (bvadd |ULTIMATE.start_check_~a#1.offset| .cse1 (bvmul (_ bv4 32) |ULTIMATE.start_check_~x#1|))) |ULTIMATE.start_check_#t~mem10#1|) (= (select .cse0 (bvadd |ULTIMATE.start_check_~a#1.offset| (bvmul (_ bv4 32) |ULTIMATE.start_check_~y#1|) .cse1)) |ULTIMATE.start_check_#t~mem11#1|)))) (= |ULTIMATE.start_main_~a~0#1.offset| (_ bv0 32)) (= .cse0 (select |#memory_int| |ULTIMATE.start_lcp_~a#1.base|)) (or (not (bvslt (bvadd |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_lcp_#res#1|) |ULTIMATE.start_main_~n~0#1|)) (not (bvslt (bvadd |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_lcp_#res#1|) |ULTIMATE.start_main_~n~0#1|))) (= .cse0 (select |#memory_int| |ULTIMATE.start_check_~a#1.base|)))) [2022-11-20 10:53:37,413 INFO L899 garLoopResultBuilder]: For program point L28-1(line 28) no Hoare annotation was computed. [2022-11-20 10:53:37,414 INFO L899 garLoopResultBuilder]: For program point L24(lines 24 33) no Hoare annotation was computed. [2022-11-20 10:53:37,414 INFO L899 garLoopResultBuilder]: For program point L18-1(line 18) no Hoare annotation was computed. [2022-11-20 10:53:37,414 INFO L899 garLoopResultBuilder]: For program point L18-3(lines 18 20) no Hoare annotation was computed. [2022-11-20 10:53:37,414 INFO L895 garLoopResultBuilder]: At program point L18-5(lines 18 20) the Hoare annotation is: (let ((.cse0 ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32)))) (and (bvsge |ULTIMATE.start_main_~x~0#1| (_ bv0 32)) (= .cse0 (select |#memory_int| |ULTIMATE.start_main_~a~0#1.base|)) (bvsge |ULTIMATE.start_main_~n~0#1| (_ bv0 32)) (= |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_lcp_~x#1|) (= |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_lcp_~y#1|) (bvslt |ULTIMATE.start_main_~n~0#1| (_ bv1073741824 32)) (bvsge |ULTIMATE.start_main_~y~0#1| (_ bv0 32)) (= |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_lcp_~n#1|) (= |ULTIMATE.start_main_~a~0#1.offset| (_ bv0 32)) (= .cse0 (select |#memory_int| |ULTIMATE.start_lcp_~a#1.base|)))) [2022-11-20 10:53:37,414 INFO L899 garLoopResultBuilder]: For program point L18-6(lines 18 20) no Hoare annotation was computed. [2022-11-20 10:53:37,415 INFO L895 garLoopResultBuilder]: At program point L43(line 43) the Hoare annotation is: (let ((.cse0 ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32)))) (and (= .cse0 (select |#memory_int| |ULTIMATE.start_main_~a~0#1.base|)) (bvsge |ULTIMATE.start_main_~n~0#1| (_ bv0 32)) (= |ULTIMATE.start_main_#t~malloc15#1.offset| (_ bv0 32)) (bvslt |ULTIMATE.start_main_~n~0#1| (_ bv1073741824 32)) (= .cse0 (select |#memory_int| |ULTIMATE.start_main_#t~malloc15#1.base|)) (= |ULTIMATE.start_main_~a~0#1.offset| (_ bv0 32)))) [2022-11-20 10:53:37,415 INFO L899 garLoopResultBuilder]: For program point L43-1(line 43) no Hoare annotation was computed. [2022-11-20 10:53:37,415 INFO L902 garLoopResultBuilder]: At program point assume_abort_if_notENTRY(lines 5 7) the Hoare annotation is: true [2022-11-20 10:53:37,415 INFO L899 garLoopResultBuilder]: For program point L6(line 6) no Hoare annotation was computed. [2022-11-20 10:53:37,415 INFO L899 garLoopResultBuilder]: For program point L6-2(lines 5 7) no Hoare annotation was computed. [2022-11-20 10:53:37,415 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 5 7) no Hoare annotation was computed. [2022-11-20 10:53:37,415 INFO L902 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 12 14) the Hoare annotation is: true [2022-11-20 10:53:37,415 INFO L899 garLoopResultBuilder]: For program point L13(line 13) no Hoare annotation was computed. [2022-11-20 10:53:37,415 INFO L899 garLoopResultBuilder]: For program point L13-1(line 13) no Hoare annotation was computed. [2022-11-20 10:53:37,415 INFO L899 garLoopResultBuilder]: For program point L13-3(lines 12 14) no Hoare annotation was computed. [2022-11-20 10:53:37,415 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 12 14) no Hoare annotation was computed. [2022-11-20 10:53:37,416 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2022-11-20 10:53:37,419 INFO L444 BasicCegarLoop]: Path program histogram: [3, 3, 1, 1, 1] [2022-11-20 10:53:37,421 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 10:53:37,426 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: translation of (const (_ BitVec 32) (Array (_ BitVec 32) (_ BitVec 32))) not yet implemented, please contact Matthias at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:236) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:173) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:173) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:137) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:401) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:1) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpression(ModelTranslationContainer.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpressionToString(ModelTranslationContainer.java:89) at de.uni_freiburg.informatik.ultimate.core.lib.results.InvariantResult.getLongDescription(InvariantResult.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:86) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResultReporter.reportResult(CegarLoopResultReporter.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.createInvariantResults(TraceAbstractionStarter.java:455) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:191) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-20 10:53:37,430 INFO L158 Benchmark]: Toolchain (without parser) took 238748.40ms. Allocated memory was 75.5MB in the beginning and 94.4MB in the end (delta: 18.9MB). Free memory was 53.3MB in the beginning and 53.8MB in the end (delta: -520.2kB). Peak memory consumption was 54.2MB. Max. memory is 16.1GB. [2022-11-20 10:53:37,430 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 75.5MB. Free memory is still 52.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 10:53:37,430 INFO L158 Benchmark]: CACSL2BoogieTranslator took 344.32ms. Allocated memory is still 75.5MB. Free memory was 53.1MB in the beginning and 41.8MB in the end (delta: 11.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-20 10:53:37,431 INFO L158 Benchmark]: Boogie Procedure Inliner took 85.50ms. Allocated memory is still 75.5MB. Free memory was 41.8MB in the beginning and 40.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 10:53:37,431 INFO L158 Benchmark]: Boogie Preprocessor took 65.88ms. Allocated memory is still 75.5MB. Free memory was 40.0MB in the beginning and 38.5MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 10:53:37,431 INFO L158 Benchmark]: RCFGBuilder took 688.30ms. Allocated memory is still 75.5MB. Free memory was 38.4MB in the beginning and 47.6MB in the end (delta: -9.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-20 10:53:37,432 INFO L158 Benchmark]: TraceAbstraction took 237556.59ms. Allocated memory was 75.5MB in the beginning and 94.4MB in the end (delta: 18.9MB). Free memory was 46.9MB in the beginning and 53.8MB in the end (delta: -6.9MB). Peak memory consumption was 47.9MB. Max. memory is 16.1GB. [2022-11-20 10:53:37,433 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 75.5MB. Free memory is still 52.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 344.32ms. Allocated memory is still 75.5MB. Free memory was 53.1MB in the beginning and 41.8MB in the end (delta: 11.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 85.50ms. Allocated memory is still 75.5MB. Free memory was 41.8MB in the beginning and 40.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 65.88ms. Allocated memory is still 75.5MB. Free memory was 40.0MB in the beginning and 38.5MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 688.30ms. Allocated memory is still 75.5MB. Free memory was 38.4MB in the beginning and 47.6MB in the end (delta: -9.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 237556.59ms. Allocated memory was 75.5MB in the beginning and 94.4MB in the end (delta: 18.9MB). Free memory was 46.9MB in the beginning and 53.8MB in the end (delta: -6.9MB). Peak memory consumption was 47.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 13]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 33 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 237.5s, OverallIterations: 9, TraceHistogramMax: 11, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 95.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 30.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 574 SdHoareTripleChecker+Valid, 8.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 567 mSDsluCounter, 1528 SdHoareTripleChecker+Invalid, 7.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 608 IncrementalHoareTripleChecker+Unchecked, 1298 mSDsCounter, 221 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1730 IncrementalHoareTripleChecker+Invalid, 2559 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 221 mSolverCounterUnsat, 230 mSDtfsCounter, 1730 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 769 GetRequests, 516 SyntacticMatches, 10 SemanticMatches, 243 ConstructedPredicates, 9 IntricatePredicates, 0 DeprecatedPredicates, 2148 ImplicationChecksByTransitivity, 159.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=68occurred in iteration=8, InterpolantAutomatonStates: 164, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 35 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 48 PreInvPairs, 87 NumberOfFragments, 314 HoareAnnotationTreeSize, 48 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 10 FomulaSimplificationsInter, 7148 FormulaSimplificationTreeSizeReductionInter, 30.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 25.3s SatisfiabilityAnalysisTime, 83.2s InterpolantComputationTime, 466 NumberOfCodeBlocks, 417 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 607 ConstructedInterpolants, 71 QuantifiedInterpolants, 6404 SizeOfPredicates, 194 NumberOfNonLiveVariables, 1283 ConjunctsInSsa, 235 ConjunctsInUnsatCore, 15 InterpolantComputations, 3 PerfectInterpolantSequences, 514/657 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - ExceptionOrErrorResult: UnsupportedOperationException: translation of (const (_ BitVec 32) (Array (_ BitVec 32) (_ BitVec 32))) not yet implemented, please contact Matthias de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: translation of (const (_ BitVec 32) (Array (_ BitVec 32) (_ BitVec 32))) not yet implemented, please contact Matthias: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:236) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-11-20 10:53:37,498 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba92bf7-46b6-479d-99f0-cb55d81b1251/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: translation of (const (_ BitVec 32) (Array (_ BitVec 32) (_ BitVec 32))) not yet implemented, please contact Matthias