./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/list-simple/dll2c_append_unequal.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e85764d-daf1-4660-990f-a152835a1bbb/bin/uautomizer-tBqnrhUYjU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e85764d-daf1-4660-990f-a152835a1bbb/bin/uautomizer-tBqnrhUYjU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e85764d-daf1-4660-990f-a152835a1bbb/bin/uautomizer-tBqnrhUYjU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e85764d-daf1-4660-990f-a152835a1bbb/bin/uautomizer-tBqnrhUYjU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/list-simple/dll2c_append_unequal.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e85764d-daf1-4660-990f-a152835a1bbb/bin/uautomizer-tBqnrhUYjU/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e85764d-daf1-4660-990f-a152835a1bbb/bin/uautomizer-tBqnrhUYjU --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 9aabbeff87ba819b44dc608a3105d0ba81b71cd88693ecf2e6bf3860a7863e64 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-02 22:59:22,522 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-02 22:59:22,525 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-02 22:59:22,589 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-02 22:59:22,589 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-02 22:59:22,591 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-02 22:59:22,594 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-02 22:59:22,597 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-02 22:59:22,600 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-02 22:59:22,602 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-02 22:59:22,603 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-02 22:59:22,605 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-02 22:59:22,606 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-02 22:59:22,608 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-02 22:59:22,610 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-02 22:59:22,613 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-02 22:59:22,614 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-02 22:59:22,616 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-02 22:59:22,619 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-02 22:59:22,623 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-02 22:59:22,626 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-02 22:59:22,628 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-02 22:59:22,630 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-02 22:59:22,632 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-02 22:59:22,637 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-02 22:59:22,638 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-02 22:59:22,638 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-02 22:59:22,640 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-02 22:59:22,641 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-02 22:59:22,642 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-02 22:59:22,643 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-02 22:59:22,644 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-02 22:59:22,646 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-02 22:59:22,647 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-02 22:59:22,649 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-02 22:59:22,650 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-02 22:59:22,651 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-02 22:59:22,652 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-02 22:59:22,652 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-02 22:59:22,654 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-02 22:59:22,655 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-02 22:59:22,658 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e85764d-daf1-4660-990f-a152835a1bbb/bin/uautomizer-tBqnrhUYjU/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-02 22:59:22,720 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-02 22:59:22,721 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-02 22:59:22,722 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-02 22:59:22,722 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-02 22:59:22,732 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-02 22:59:22,733 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-02 22:59:22,733 INFO L138 SettingsManager]: * Use SBE=true [2021-11-02 22:59:22,734 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-02 22:59:22,734 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-02 22:59:22,734 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-02 22:59:22,736 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-02 22:59:22,736 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-02 22:59:22,737 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-02 22:59:22,737 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-02 22:59:22,737 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-02 22:59:22,737 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-02 22:59:22,738 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-02 22:59:22,738 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-02 22:59:22,738 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-02 22:59:22,739 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-02 22:59:22,739 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-02 22:59:22,739 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-02 22:59:22,740 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 22:59:22,740 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-02 22:59:22,740 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-02 22:59:22,741 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-02 22:59:22,741 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-02 22:59:22,741 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-02 22:59:22,742 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-02 22:59:22,744 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-02 22:59:22,745 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-02 22:59:22,745 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-02 22:59:22,746 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_8e85764d-daf1-4660-990f-a152835a1bbb/bin/uautomizer-tBqnrhUYjU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e85764d-daf1-4660-990f-a152835a1bbb/bin/uautomizer-tBqnrhUYjU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9aabbeff87ba819b44dc608a3105d0ba81b71cd88693ecf2e6bf3860a7863e64 [2021-11-02 22:59:23,090 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-02 22:59:23,143 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-02 22:59:23,146 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-02 22:59:23,148 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-02 22:59:23,149 INFO L275 PluginConnector]: CDTParser initialized [2021-11-02 22:59:23,150 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e85764d-daf1-4660-990f-a152835a1bbb/bin/uautomizer-tBqnrhUYjU/../../sv-benchmarks/c/list-simple/dll2c_append_unequal.i [2021-11-02 22:59:23,266 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e85764d-daf1-4660-990f-a152835a1bbb/bin/uautomizer-tBqnrhUYjU/data/b1748974f/8dd0de12b1a849c6bc700db92db18399/FLAG0db5a46b1 [2021-11-02 22:59:23,902 INFO L306 CDTParser]: Found 1 translation units. [2021-11-02 22:59:23,903 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e85764d-daf1-4660-990f-a152835a1bbb/sv-benchmarks/c/list-simple/dll2c_append_unequal.i [2021-11-02 22:59:23,926 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e85764d-daf1-4660-990f-a152835a1bbb/bin/uautomizer-tBqnrhUYjU/data/b1748974f/8dd0de12b1a849c6bc700db92db18399/FLAG0db5a46b1 [2021-11-02 22:59:24,141 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e85764d-daf1-4660-990f-a152835a1bbb/bin/uautomizer-tBqnrhUYjU/data/b1748974f/8dd0de12b1a849c6bc700db92db18399 [2021-11-02 22:59:24,143 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-02 22:59:24,145 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-02 22:59:24,148 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-02 22:59:24,148 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-02 22:59:24,158 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-02 22:59:24,159 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:59:24" (1/1) ... [2021-11-02 22:59:24,161 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7453468e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:59:24, skipping insertion in model container [2021-11-02 22:59:24,167 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:59:24" (1/1) ... [2021-11-02 22:59:24,176 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-02 22:59:24,250 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-02 22:59:24,613 WARN L228 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_8e85764d-daf1-4660-990f-a152835a1bbb/sv-benchmarks/c/list-simple/dll2c_append_unequal.i[24672,24685] [2021-11-02 22:59:24,617 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 22:59:24,628 INFO L203 MainTranslator]: Completed pre-run [2021-11-02 22:59:24,689 WARN L228 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_8e85764d-daf1-4660-990f-a152835a1bbb/sv-benchmarks/c/list-simple/dll2c_append_unequal.i[24672,24685] [2021-11-02 22:59:24,690 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 22:59:24,729 INFO L208 MainTranslator]: Completed translation [2021-11-02 22:59:24,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:59:24 WrapperNode [2021-11-02 22:59:24,730 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-02 22:59:24,732 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-02 22:59:24,732 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-02 22:59:24,732 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-02 22:59:24,742 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:59:24" (1/1) ... [2021-11-02 22:59:24,761 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:59:24" (1/1) ... [2021-11-02 22:59:24,799 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-02 22:59:24,800 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-02 22:59:24,800 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-02 22:59:24,801 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-02 22:59:24,811 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:59:24" (1/1) ... [2021-11-02 22:59:24,811 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:59:24" (1/1) ... [2021-11-02 22:59:24,818 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:59:24" (1/1) ... [2021-11-02 22:59:24,818 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:59:24" (1/1) ... [2021-11-02 22:59:24,831 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:59:24" (1/1) ... [2021-11-02 22:59:24,837 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:59:24" (1/1) ... [2021-11-02 22:59:24,839 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:59:24" (1/1) ... [2021-11-02 22:59:24,845 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-02 22:59:24,851 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-02 22:59:24,851 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-02 22:59:24,851 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-02 22:59:24,853 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:59:24" (1/1) ... [2021-11-02 22:59:24,874 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 22:59:24,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e85764d-daf1-4660-990f-a152835a1bbb/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:59:24,904 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e85764d-daf1-4660-990f-a152835a1bbb/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-02 22:59:24,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e85764d-daf1-4660-990f-a152835a1bbb/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-02 22:59:24,951 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-02 22:59:24,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-02 22:59:24,951 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-02 22:59:24,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-02 22:59:24,952 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-02 22:59:24,952 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-02 22:59:24,952 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-02 22:59:24,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-02 22:59:24,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-02 22:59:24,952 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-02 22:59:24,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-02 22:59:25,619 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-02 22:59:25,620 INFO L299 CfgBuilder]: Removed 25 assume(true) statements. [2021-11-02 22:59:25,622 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:59:25 BoogieIcfgContainer [2021-11-02 22:59:25,622 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-02 22:59:25,624 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-02 22:59:25,625 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-02 22:59:25,629 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-02 22:59:25,629 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 10:59:24" (1/3) ... [2021-11-02 22:59:25,630 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f27174f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 10:59:25, skipping insertion in model container [2021-11-02 22:59:25,630 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:59:24" (2/3) ... [2021-11-02 22:59:25,631 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f27174f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 10:59:25, skipping insertion in model container [2021-11-02 22:59:25,631 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:59:25" (3/3) ... [2021-11-02 22:59:25,633 INFO L111 eAbstractionObserver]: Analyzing ICFG dll2c_append_unequal.i [2021-11-02 22:59:25,640 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-02 22:59:25,640 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-02 22:59:25,702 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-02 22:59:25,710 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=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, mLoopAccelerationTechnique=FAST_UPR [2021-11-02 22:59:25,710 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-02 22:59:25,728 INFO L276 IsEmpty]: Start isEmpty. Operand has 37 states, 35 states have (on average 1.457142857142857) internal successors, (51), 36 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:25,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-02 22:59:25,733 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:59:25,734 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:59:25,735 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 22:59:25,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:59:25,742 INFO L85 PathProgramCache]: Analyzing trace with hash -978429468, now seen corresponding path program 1 times [2021-11-02 22:59:25,753 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:59:25,754 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394849517] [2021-11-02 22:59:25,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:59:25,755 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:59:25,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:59:26,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:59:26,020 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:59:26,021 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394849517] [2021-11-02 22:59:26,022 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394849517] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:59:26,023 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:59:26,023 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 22:59:26,025 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393415427] [2021-11-02 22:59:26,032 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 22:59:26,033 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:59:26,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 22:59:26,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:59:26,063 INFO L87 Difference]: Start difference. First operand has 37 states, 35 states have (on average 1.457142857142857) internal successors, (51), 36 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:26,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:59:26,136 INFO L93 Difference]: Finished difference Result 68 states and 95 transitions. [2021-11-02 22:59:26,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 22:59:26,144 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-11-02 22:59:26,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:59:26,154 INFO L225 Difference]: With dead ends: 68 [2021-11-02 22:59:26,154 INFO L226 Difference]: Without dead ends: 33 [2021-11-02 22:59:26,160 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:59:26,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2021-11-02 22:59:26,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 28. [2021-11-02 22:59:26,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 27 states have (on average 1.2222222222222223) internal successors, (33), 27 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:26,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 33 transitions. [2021-11-02 22:59:26,205 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 33 transitions. Word has length 16 [2021-11-02 22:59:26,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:59:26,205 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 33 transitions. [2021-11-02 22:59:26,206 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:26,206 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 33 transitions. [2021-11-02 22:59:26,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-02 22:59:26,207 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:59:26,207 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:59:26,207 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-02 22:59:26,208 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 22:59:26,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:59:26,213 INFO L85 PathProgramCache]: Analyzing trace with hash -1498712936, now seen corresponding path program 1 times [2021-11-02 22:59:26,213 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:59:26,213 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260062546] [2021-11-02 22:59:26,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:59:26,237 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:59:26,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:59:26,819 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:59:26,820 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:59:26,820 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260062546] [2021-11-02 22:59:26,821 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260062546] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:59:26,821 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:59:26,821 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-02 22:59:26,821 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856099359] [2021-11-02 22:59:26,823 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-02 22:59:26,823 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:59:26,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-02 22:59:26,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-11-02 22:59:26,827 INFO L87 Difference]: Start difference. First operand 28 states and 33 transitions. Second operand has 11 states, 11 states have (on average 2.0) internal successors, (22), 11 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:27,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:59:27,306 INFO L93 Difference]: Finished difference Result 53 states and 63 transitions. [2021-11-02 22:59:27,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-02 22:59:27,307 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.0) internal successors, (22), 11 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-11-02 22:59:27,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:59:27,308 INFO L225 Difference]: With dead ends: 53 [2021-11-02 22:59:27,308 INFO L226 Difference]: Without dead ends: 31 [2021-11-02 22:59:27,310 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=121, Invalid=259, Unknown=0, NotChecked=0, Total=380 [2021-11-02 22:59:27,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-11-02 22:59:27,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 28. [2021-11-02 22:59:27,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 27 states have (on average 1.1481481481481481) internal successors, (31), 27 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:27,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 31 transitions. [2021-11-02 22:59:27,317 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 31 transitions. Word has length 22 [2021-11-02 22:59:27,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:59:27,317 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 31 transitions. [2021-11-02 22:59:27,318 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.0) internal successors, (22), 11 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:27,318 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 31 transitions. [2021-11-02 22:59:27,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-02 22:59:27,319 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:59:27,319 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:59:27,319 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-02 22:59:27,320 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 22:59:27,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:59:27,320 INFO L85 PathProgramCache]: Analyzing trace with hash -1496865894, now seen corresponding path program 1 times [2021-11-02 22:59:27,321 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:59:27,321 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115680861] [2021-11-02 22:59:27,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:59:27,322 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:59:27,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:59:28,667 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:59:28,667 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:59:28,668 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115680861] [2021-11-02 22:59:28,668 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115680861] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 22:59:28,668 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2115158421] [2021-11-02 22:59:28,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:59:28,669 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 22:59:28,669 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e85764d-daf1-4660-990f-a152835a1bbb/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:59:28,672 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e85764d-daf1-4660-990f-a152835a1bbb/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 22:59:28,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e85764d-daf1-4660-990f-a152835a1bbb/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-02 22:59:28,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:59:28,997 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 94 conjunts are in the unsatisfiable core [2021-11-02 22:59:29,006 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:59:29,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:59:29,166 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2021-11-02 22:59:29,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:59:29,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:59:29,651 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-02 22:59:29,652 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 29 [2021-11-02 22:59:29,922 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-02 22:59:30,130 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2021-11-02 22:59:30,315 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2021-11-02 22:59:30,777 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-11-02 22:59:30,778 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 77 treesize of output 64 [2021-11-02 22:59:30,837 INFO L354 Elim1Store]: treesize reduction 72, result has 20.9 percent of original size [2021-11-02 22:59:30,838 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 90 treesize of output 57 [2021-11-02 22:59:31,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:59:31,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:59:31,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:59:31,161 INFO L354 Elim1Store]: treesize reduction 8, result has 72.4 percent of original size [2021-11-02 22:59:31,163 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 33 treesize of output 33 [2021-11-02 22:59:31,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:59:31,709 INFO L354 Elim1Store]: treesize reduction 328, result has 8.6 percent of original size [2021-11-02 22:59:31,710 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 197 treesize of output 157 [2021-11-02 22:59:31,751 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-11-02 22:59:31,752 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 186 treesize of output 174 [2021-11-02 22:59:31,787 INFO L354 Elim1Store]: treesize reduction 47, result has 19.0 percent of original size [2021-11-02 22:59:31,788 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 171 treesize of output 155 [2021-11-02 22:59:31,824 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-11-02 22:59:31,825 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 152 treesize of output 151 [2021-11-02 22:59:31,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:59:31,869 INFO L354 Elim1Store]: treesize reduction 82, result has 17.2 percent of original size [2021-11-02 22:59:31,870 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 139 treesize of output 131 [2021-11-02 23:00:03,751 WARN L207 SmtUtils]: Spent 31.17 s on a formula simplification. DAG size of input: 908 DAG size of output: 261 [2021-11-02 23:00:03,754 INFO L354 Elim1Store]: treesize reduction 9671, result has 8.1 percent of original size [2021-11-02 23:00:03,756 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 9 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 19 new quantified variables, introduced 96 case distinctions, treesize of input 64918 treesize of output 17113 [2021-11-02 23:01:39,676 WARN L207 SmtUtils]: Spent 1.58 m on a formula simplification. DAG size of input: 1454 DAG size of output: 522 [2021-11-02 23:01:39,680 INFO L354 Elim1Store]: treesize reduction 31445, result has 8.4 percent of original size [2021-11-02 23:01:39,684 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 27 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 31 new quantified variables, introduced 162 case distinctions, treesize of input 610210 treesize of output 246073 [2021-11-02 23:01:45,087 INFO L354 Elim1Store]: treesize reduction 412, result has 9.8 percent of original size [2021-11-02 23:01:45,091 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 422634 treesize of output 422479 [2021-11-02 23:01:52,029 INFO L354 Elim1Store]: treesize reduction 3090, result has 10.5 percent of original size [2021-11-02 23:01:52,033 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 9 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 10 new quantified variables, introduced 18 case distinctions, treesize of input 539976 treesize of output 280159 [2021-11-02 23:01:58,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:01:58,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:01:58,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:01:58,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:01:58,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:01:58,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:01:58,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:01:58,820 INFO L354 Elim1Store]: treesize reduction 12, result has 92.5 percent of original size [2021-11-02 23:01:58,821 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 9 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 8 case distinctions, treesize of input 303 treesize of output 311 [2021-11-02 23:02:00,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:02:00,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:02:00,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:02:00,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:02:00,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:02:00,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:02:00,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:02:00,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:02:00,806 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 231 treesize of output 117 [2021-11-02 23:02:01,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:02:01,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:02:01,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:02:01,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:02:01,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:02:01,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:02:01,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:02:01,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:02:01,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:02:01,166 INFO L354 Elim1Store]: treesize reduction 8, result has 83.0 percent of original size [2021-11-02 23:02:01,167 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 11 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 2 case distinctions, treesize of input 246 treesize of output 158 [2021-11-02 23:02:02,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:02:02,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:02:02,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:02:02,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:02:02,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:02:02,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:02:02,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:02:02,208 INFO L354 Elim1Store]: treesize reduction 30, result has 67.7 percent of original size [2021-11-02 23:02:02,209 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 9 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 4 case distinctions, treesize of input 283 treesize of output 219 [2021-11-02 23:02:03,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:02:03,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:02:03,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:02:03,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:02:03,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:02:03,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:02:03,891 INFO L354 Elim1Store]: treesize reduction 8, result has 83.0 percent of original size [2021-11-02 23:02:03,892 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 2 case distinctions, treesize of input 231 treesize of output 155 [2021-11-02 23:02:05,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:02:05,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:02:05,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:02:05,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:02:05,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:02:05,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:02:05,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:02:05,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:02:05,167 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 228 treesize of output 128 [2021-11-02 23:02:06,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:02:06,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:02:06,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:02:06,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:02:06,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:02:06,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:02:06,099 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 176 treesize of output 88 [2021-11-02 23:02:07,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:02:07,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:02:07,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:02:07,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:02:07,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:02:07,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:02:07,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:02:07,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:02:07,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:02:07,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:02:07,660 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-02 23:02:07,661 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 12 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 1 case distinctions, treesize of input 248 treesize of output 158 [2021-11-02 23:02:08,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:02:08,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:02:09,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:02:09,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:02:09,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:02:09,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:02:09,019 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 174 treesize of output 88 [2021-11-02 23:02:09,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:02:09,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:02:09,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:02:09,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:02:09,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:02:09,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:02:09,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:02:09,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:02:09,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:02:09,784 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-02 23:02:09,784 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 11 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 2 case distinctions, treesize of input 246 treesize of output 166 [2021-11-02 23:02:11,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:02:11,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:02:11,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:02:11,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:02:11,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:02:11,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:02:11,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:02:11,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:02:11,390 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 189 treesize of output 91