./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench/geo3-ll.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 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_659d811d-a126-4177-9078-48ee813a6d2f/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_659d811d-a126-4177-9078-48ee813a6d2f/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_659d811d-a126-4177-9078-48ee813a6d2f/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_659d811d-a126-4177-9078-48ee813a6d2f/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench/geo3-ll.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_659d811d-a126-4177-9078-48ee813a6d2f/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_659d811d-a126-4177-9078-48ee813a6d2f/bin/uautomizer-vX5HgA9Q3a --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 a84b9c8d997e29e6dd212f98dff041043df0de4e5f86f5da66a42f473d3fe422 --- 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-b5237d8 [2022-11-21 13:48:28,912 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 13:48:28,915 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 13:48:28,944 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 13:48:28,945 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 13:48:28,946 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 13:48:28,947 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 13:48:28,949 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 13:48:28,950 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 13:48:28,951 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 13:48:28,952 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 13:48:28,953 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 13:48:28,954 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 13:48:28,955 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 13:48:28,956 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 13:48:28,957 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 13:48:28,958 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 13:48:28,961 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 13:48:28,963 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 13:48:28,968 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 13:48:28,970 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 13:48:28,971 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 13:48:28,972 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 13:48:28,973 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 13:48:28,977 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 13:48:28,977 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 13:48:28,978 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 13:48:28,980 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 13:48:28,980 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 13:48:28,982 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 13:48:28,982 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 13:48:28,983 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 13:48:28,984 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 13:48:28,985 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 13:48:28,986 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 13:48:28,986 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 13:48:28,987 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 13:48:28,988 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 13:48:28,988 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 13:48:28,989 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 13:48:28,990 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 13:48:28,990 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_659d811d-a126-4177-9078-48ee813a6d2f/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-21 13:48:29,013 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 13:48:29,013 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 13:48:29,013 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 13:48:29,014 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 13:48:29,014 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 13:48:29,015 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 13:48:29,015 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 13:48:29,015 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 13:48:29,016 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 13:48:29,016 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 13:48:29,016 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 13:48:29,016 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 13:48:29,017 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 13:48:29,017 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 13:48:29,017 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 13:48:29,017 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 13:48:29,018 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 13:48:29,018 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 13:48:29,018 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 13:48:29,018 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 13:48:29,019 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 13:48:29,019 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 13:48:29,019 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 13:48:29,019 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 13:48:29,020 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 13:48:29,020 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 13:48:29,020 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 13:48:29,020 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 13:48:29,020 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 13:48:29,021 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 13:48:29,021 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 13:48:29,021 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 13:48:29,021 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 13:48:29,022 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_659d811d-a126-4177-9078-48ee813a6d2f/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_659d811d-a126-4177-9078-48ee813a6d2f/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a84b9c8d997e29e6dd212f98dff041043df0de4e5f86f5da66a42f473d3fe422 [2022-11-21 13:48:29,291 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 13:48:29,324 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 13:48:29,327 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 13:48:29,328 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 13:48:29,328 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 13:48:29,330 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_659d811d-a126-4177-9078-48ee813a6d2f/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/nla-digbench/geo3-ll.c [2022-11-21 13:48:32,355 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 13:48:32,534 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 13:48:32,534 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_659d811d-a126-4177-9078-48ee813a6d2f/sv-benchmarks/c/nla-digbench/geo3-ll.c [2022-11-21 13:48:32,541 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_659d811d-a126-4177-9078-48ee813a6d2f/bin/uautomizer-vX5HgA9Q3a/data/bfd2f982f/72868b068b204207af87a4023289dbf5/FLAGfcf11413f [2022-11-21 13:48:32,555 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_659d811d-a126-4177-9078-48ee813a6d2f/bin/uautomizer-vX5HgA9Q3a/data/bfd2f982f/72868b068b204207af87a4023289dbf5 [2022-11-21 13:48:32,558 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 13:48:32,559 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 13:48:32,560 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 13:48:32,560 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 13:48:32,564 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 13:48:32,565 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:48:32" (1/1) ... [2022-11-21 13:48:32,566 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49f69dee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:48:32, skipping insertion in model container [2022-11-21 13:48:32,566 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:48:32" (1/1) ... [2022-11-21 13:48:32,573 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 13:48:32,586 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 13:48:32,770 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_659d811d-a126-4177-9078-48ee813a6d2f/sv-benchmarks/c/nla-digbench/geo3-ll.c[525,538] [2022-11-21 13:48:32,783 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 13:48:32,792 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 13:48:32,805 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_659d811d-a126-4177-9078-48ee813a6d2f/sv-benchmarks/c/nla-digbench/geo3-ll.c[525,538] [2022-11-21 13:48:32,810 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 13:48:32,822 INFO L208 MainTranslator]: Completed translation [2022-11-21 13:48:32,823 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:48:32 WrapperNode [2022-11-21 13:48:32,823 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 13:48:32,824 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 13:48:32,824 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 13:48:32,824 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 13:48:32,829 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:48:32" (1/1) ... [2022-11-21 13:48:32,835 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:48:32" (1/1) ... [2022-11-21 13:48:32,851 INFO L138 Inliner]: procedures = 14, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 43 [2022-11-21 13:48:32,851 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 13:48:32,852 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 13:48:32,852 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 13:48:32,852 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 13:48:32,861 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:48:32" (1/1) ... [2022-11-21 13:48:32,861 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:48:32" (1/1) ... [2022-11-21 13:48:32,862 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:48:32" (1/1) ... [2022-11-21 13:48:32,862 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:48:32" (1/1) ... [2022-11-21 13:48:32,865 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:48:32" (1/1) ... [2022-11-21 13:48:32,868 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:48:32" (1/1) ... [2022-11-21 13:48:32,869 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:48:32" (1/1) ... [2022-11-21 13:48:32,870 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:48:32" (1/1) ... [2022-11-21 13:48:32,871 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 13:48:32,872 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 13:48:32,872 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 13:48:32,872 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 13:48:32,873 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:48:32" (1/1) ... [2022-11-21 13:48:32,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 13:48:32,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_659d811d-a126-4177-9078-48ee813a6d2f/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:48:32,904 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_659d811d-a126-4177-9078-48ee813a6d2f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 13:48:32,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_659d811d-a126-4177-9078-48ee813a6d2f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 13:48:32,959 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 13:48:32,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 13:48:32,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 13:48:32,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 13:48:32,960 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-21 13:48:32,961 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-21 13:48:33,033 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 13:48:33,035 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 13:48:33,211 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 13:48:33,216 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 13:48:33,217 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-21 13:48:33,218 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:48:33 BoogieIcfgContainer [2022-11-21 13:48:33,219 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 13:48:33,221 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 13:48:33,221 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 13:48:33,228 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 13:48:33,228 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:48:32" (1/3) ... [2022-11-21 13:48:33,229 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@400edca2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:48:33, skipping insertion in model container [2022-11-21 13:48:33,229 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:48:32" (2/3) ... [2022-11-21 13:48:33,229 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@400edca2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:48:33, skipping insertion in model container [2022-11-21 13:48:33,229 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:48:33" (3/3) ... [2022-11-21 13:48:33,231 INFO L112 eAbstractionObserver]: Analyzing ICFG geo3-ll.c [2022-11-21 13:48:33,252 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 13:48:33,252 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-21 13:48:33,316 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 13:48:33,322 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;@1b798494, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 13:48:33,323 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-21 13:48:33,327 INFO L276 IsEmpty]: Start isEmpty. Operand has 16 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 12 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-21 13:48:33,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-21 13:48:33,334 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:48:33,335 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:48:33,336 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 13:48:33,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:48:33,341 INFO L85 PathProgramCache]: Analyzing trace with hash 1818803301, now seen corresponding path program 1 times [2022-11-21 13:48:33,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:48:33,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098718254] [2022-11-21 13:48:33,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:48:33,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:48:33,440 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-21 13:48:33,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1775923231] [2022-11-21 13:48:33,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:48:33,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 13:48:33,442 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_659d811d-a126-4177-9078-48ee813a6d2f/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:48:33,445 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_659d811d-a126-4177-9078-48ee813a6d2f/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 13:48:33,447 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_659d811d-a126-4177-9078-48ee813a6d2f/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-21 13:48:33,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:48:33,525 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-21 13:48:33,529 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 13:48:33,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:48:33,552 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 13:48:33,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:48:33,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098718254] [2022-11-21 13:48:33,553 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-21 13:48:33,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1775923231] [2022-11-21 13:48:33,553 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1775923231] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:48:33,554 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:48:33,554 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 13:48:33,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110964759] [2022-11-21 13:48:33,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:48:33,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-21 13:48:33,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:48:33,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-21 13:48:33,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-21 13:48:33,607 INFO L87 Difference]: Start difference. First operand has 16 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 12 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:48:33,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:48:33,641 INFO L93 Difference]: Finished difference Result 30 states and 40 transitions. [2022-11-21 13:48:33,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-21 13:48:33,656 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-21 13:48:33,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:48:33,664 INFO L225 Difference]: With dead ends: 30 [2022-11-21 13:48:33,664 INFO L226 Difference]: Without dead ends: 12 [2022-11-21 13:48:33,667 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-21 13:48:33,682 INFO L413 NwaCegarLoop]: 17 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, 17 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 [2022-11-21 13:48:33,683 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 13:48:33,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2022-11-21 13:48:33,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2022-11-21 13:48:33,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 8 states have (on average 1.25) internal successors, (10), 9 states have internal predecessors, (10), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-21 13:48:33,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions. [2022-11-21 13:48:33,749 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 13 transitions. Word has length 7 [2022-11-21 13:48:33,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:48:33,750 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 13 transitions. [2022-11-21 13:48:33,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:48:33,750 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2022-11-21 13:48:33,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-21 13:48:33,751 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:48:33,751 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:48:33,786 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_659d811d-a126-4177-9078-48ee813a6d2f/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-21 13:48:33,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_659d811d-a126-4177-9078-48ee813a6d2f/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-21 13:48:33,971 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 13:48:33,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:48:33,972 INFO L85 PathProgramCache]: Analyzing trace with hash 1811355551, now seen corresponding path program 1 times [2022-11-21 13:48:33,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:48:33,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865293150] [2022-11-21 13:48:33,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:48:33,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:48:33,980 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-21 13:48:33,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [159180426] [2022-11-21 13:48:33,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:48:33,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 13:48:33,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_659d811d-a126-4177-9078-48ee813a6d2f/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:48:33,983 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_659d811d-a126-4177-9078-48ee813a6d2f/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 13:48:34,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_659d811d-a126-4177-9078-48ee813a6d2f/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-21 13:48:34,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:48:34,044 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-21 13:48:34,046 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 13:48:34,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:48:34,183 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 13:48:34,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:48:34,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865293150] [2022-11-21 13:48:34,183 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-21 13:48:34,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [159180426] [2022-11-21 13:48:34,184 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [159180426] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:48:34,184 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:48:34,184 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 13:48:34,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290098424] [2022-11-21 13:48:34,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:48:34,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 13:48:34,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:48:34,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 13:48:34,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-21 13:48:34,187 INFO L87 Difference]: Start difference. First operand 12 states and 13 transitions. Second operand has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:48:34,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:48:34,237 INFO L93 Difference]: Finished difference Result 22 states and 24 transitions. [2022-11-21 13:48:34,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 13:48:34,238 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-21 13:48:34,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:48:34,239 INFO L225 Difference]: With dead ends: 22 [2022-11-21 13:48:34,239 INFO L226 Difference]: Without dead ends: 19 [2022-11-21 13:48:34,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-21 13:48:34,244 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 6 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 13:48:34,246 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 33 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 13:48:34,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-11-21 13:48:34,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-11-21 13:48:34,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 14 states have internal predecessors, (15), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-21 13:48:34,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2022-11-21 13:48:34,254 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 7 [2022-11-21 13:48:34,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:48:34,255 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2022-11-21 13:48:34,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:48:34,255 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2022-11-21 13:48:34,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-21 13:48:34,256 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:48:34,256 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:48:34,266 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_659d811d-a126-4177-9078-48ee813a6d2f/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-21 13:48:34,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_659d811d-a126-4177-9078-48ee813a6d2f/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 13:48:34,461 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 13:48:34,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:48:34,462 INFO L85 PathProgramCache]: Analyzing trace with hash 614685336, now seen corresponding path program 1 times [2022-11-21 13:48:34,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:48:34,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890549024] [2022-11-21 13:48:34,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:48:34,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:48:34,474 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-21 13:48:34,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1208112436] [2022-11-21 13:48:34,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:48:34,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 13:48:34,475 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_659d811d-a126-4177-9078-48ee813a6d2f/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:48:34,476 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_659d811d-a126-4177-9078-48ee813a6d2f/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 13:48:34,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_659d811d-a126-4177-9078-48ee813a6d2f/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-21 13:48:34,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:48:34,574 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-21 13:48:34,577 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 13:48:34,821 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:48:34,821 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 13:48:35,170 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:48:35,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:48:35,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890549024] [2022-11-21 13:48:35,171 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-21 13:48:35,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1208112436] [2022-11-21 13:48:35,172 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1208112436] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 13:48:35,173 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-21 13:48:35,173 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 12 [2022-11-21 13:48:35,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124422430] [2022-11-21 13:48:35,173 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-21 13:48:35,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-21 13:48:35,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:48:35,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-21 13:48:35,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-11-21 13:48:35,180 INFO L87 Difference]: Start difference. First operand 19 states and 20 transitions. Second operand has 12 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 10 states have internal predecessors, (19), 4 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-21 13:48:35,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:48:35,724 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2022-11-21 13:48:35,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 13:48:35,725 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 10 states have internal predecessors, (19), 4 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 14 [2022-11-21 13:48:35,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:48:35,726 INFO L225 Difference]: With dead ends: 23 [2022-11-21 13:48:35,726 INFO L226 Difference]: Without dead ends: 0 [2022-11-21 13:48:35,726 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2022-11-21 13:48:35,728 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 15 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-21 13:48:35,728 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 39 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-21 13:48:35,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-21 13:48:35,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-21 13:48:35,729 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) [2022-11-21 13:48:35,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-21 13:48:35,730 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2022-11-21 13:48:35,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:48:35,730 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-21 13:48:35,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 10 states have internal predecessors, (19), 4 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-21 13:48:35,730 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-21 13:48:35,730 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-21 13:48:35,733 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-21 13:48:35,738 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_659d811d-a126-4177-9078-48ee813a6d2f/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-21 13:48:35,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_659d811d-a126-4177-9078-48ee813a6d2f/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 13:48:35,935 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-21 13:48:36,162 INFO L899 garLoopResultBuilder]: For program point L34-1(lines 33 42) no Hoare annotation was computed. [2022-11-21 13:48:36,162 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-21 13:48:36,162 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-21 13:48:36,162 INFO L895 garLoopResultBuilder]: At program point L33-2(lines 33 42) the Hoare annotation is: (= (+ (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~z~0#1|) |ULTIMATE.start_main_~a~0#1|) (+ |ULTIMATE.start_main_~x~0#1| (* |ULTIMATE.start_main_~az~0#1| |ULTIMATE.start_main_~y~0#1|))) [2022-11-21 13:48:36,163 INFO L895 garLoopResultBuilder]: At program point L33-3(lines 33 42) the Hoare annotation is: (= (+ (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~z~0#1|) |ULTIMATE.start_main_~a~0#1|) (+ |ULTIMATE.start_main_~x~0#1| (* |ULTIMATE.start_main_~az~0#1| |ULTIMATE.start_main_~y~0#1|))) [2022-11-21 13:48:36,163 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-21 13:48:36,163 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-21 13:48:36,163 INFO L902 garLoopResultBuilder]: At program point L44(lines 21 45) the Hoare annotation is: true [2022-11-21 13:48:36,163 INFO L899 garLoopResultBuilder]: For program point L43(line 43) no Hoare annotation was computed. [2022-11-21 13:48:36,163 INFO L895 garLoopResultBuilder]: At program point L34(line 34) the Hoare annotation is: (= (+ (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~z~0#1|) |ULTIMATE.start_main_~a~0#1|) (+ |ULTIMATE.start_main_~x~0#1| (* |ULTIMATE.start_main_~az~0#1| |ULTIMATE.start_main_~y~0#1|))) [2022-11-21 13:48:36,164 INFO L899 garLoopResultBuilder]: For program point L16(lines 16 17) no Hoare annotation was computed. [2022-11-21 13:48:36,164 INFO L899 garLoopResultBuilder]: For program point L15(lines 15 18) no Hoare annotation was computed. [2022-11-21 13:48:36,164 INFO L902 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 14 20) the Hoare annotation is: true [2022-11-21 13:48:36,164 INFO L899 garLoopResultBuilder]: For program point L15-2(lines 14 20) no Hoare annotation was computed. [2022-11-21 13:48:36,164 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 14 20) no Hoare annotation was computed. [2022-11-21 13:48:36,164 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2022-11-21 13:48:36,167 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-21 13:48:36,169 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 13:48:36,190 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 01:48:36 BoogieIcfgContainer [2022-11-21 13:48:36,190 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 13:48:36,191 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 13:48:36,191 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 13:48:36,192 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 13:48:36,193 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:48:33" (3/4) ... [2022-11-21 13:48:36,196 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-21 13:48:36,203 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2022-11-21 13:48:36,207 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-11-21 13:48:36,207 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-21 13:48:36,208 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-21 13:48:36,208 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-21 13:48:36,244 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_659d811d-a126-4177-9078-48ee813a6d2f/bin/uautomizer-vX5HgA9Q3a/witness.graphml [2022-11-21 13:48:36,247 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 13:48:36,251 INFO L158 Benchmark]: Toolchain (without parser) took 3691.84ms. Allocated memory is still 190.8MB. Free memory was 152.2MB in the beginning and 120.1MB in the end (delta: 32.2MB). Peak memory consumption was 34.6MB. Max. memory is 16.1GB. [2022-11-21 13:48:36,251 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 136.3MB. Free memory was 77.7MB in the beginning and 77.7MB in the end (delta: 26.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 13:48:36,251 INFO L158 Benchmark]: CACSL2BoogieTranslator took 263.10ms. Allocated memory is still 190.8MB. Free memory was 152.2MB in the beginning and 142.5MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-21 13:48:36,252 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.33ms. Allocated memory is still 190.8MB. Free memory was 141.8MB in the beginning and 140.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 13:48:36,252 INFO L158 Benchmark]: Boogie Preprocessor took 19.49ms. Allocated memory is still 190.8MB. Free memory was 140.4MB in the beginning and 139.7MB in the end (delta: 711.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 13:48:36,252 INFO L158 Benchmark]: RCFGBuilder took 346.81ms. Allocated memory is still 190.8MB. Free memory was 139.7MB in the beginning and 129.2MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-21 13:48:36,253 INFO L158 Benchmark]: TraceAbstraction took 2969.47ms. Allocated memory is still 190.8MB. Free memory was 128.5MB in the beginning and 123.2MB in the end (delta: 5.3MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. [2022-11-21 13:48:36,254 INFO L158 Benchmark]: Witness Printer took 59.26ms. Allocated memory is still 190.8MB. Free memory was 123.2MB in the beginning and 120.1MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-21 13:48:36,257 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 136.3MB. Free memory was 77.7MB in the beginning and 77.7MB in the end (delta: 26.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 263.10ms. Allocated memory is still 190.8MB. Free memory was 152.2MB in the beginning and 142.5MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.33ms. Allocated memory is still 190.8MB. Free memory was 141.8MB in the beginning and 140.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.49ms. Allocated memory is still 190.8MB. Free memory was 140.4MB in the beginning and 139.7MB in the end (delta: 711.1kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 346.81ms. Allocated memory is still 190.8MB. Free memory was 139.7MB in the beginning and 129.2MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 2969.47ms. Allocated memory is still 190.8MB. Free memory was 128.5MB in the beginning and 123.2MB in the end (delta: 5.3MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. * Witness Printer took 59.26ms. Allocated memory is still 190.8MB. Free memory was 123.2MB in the beginning and 120.1MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. 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: 17]: 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 2 procedures, 16 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.9s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 24 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 21 mSDsluCounter, 89 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 53 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 77 IncrementalHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 36 mSDtfsCounter, 77 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 40 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=2, InterpolantAutomatonStates: 14, 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 12 PreInvPairs, 22 NumberOfFragments, 35 HoareAnnotationTreeSize, 12 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 87 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 38 ConstructedInterpolants, 0 QuantifiedInterpolants, 194 SizeOfPredicates, 3 NumberOfNonLiveVariables, 164 ConjunctsInSsa, 34 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 4/8 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 - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 33]: Loop Invariant Derived loop invariant: x * z + a == x + az * y RESULT: Ultimate proved your program to be correct! [2022-11-21 13:48:36,282 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_659d811d-a126-4177-9078-48ee813a6d2f/bin/uautomizer-vX5HgA9Q3a/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: TRUE