./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.counter.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2979fe-72f5-43f5-90ae-e4fce6d6d8ec/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2979fe-72f5-43f5-90ae-e4fce6d6d8ec/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2979fe-72f5-43f5-90ae-e4fce6d6d8ec/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2979fe-72f5-43f5-90ae-e4fce6d6d8ec/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.counter.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2979fe-72f5-43f5-90ae-e4fce6d6d8ec/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2979fe-72f5-43f5-90ae-e4fce6d6d8ec/bin/uautomizer-ug76WZFUDN --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash e2bae4e40ed29e38030a23f4409075f953591d0aab7a5344461847b398c5b718 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 11:05:14,557 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:05:14,560 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:05:14,612 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:05:14,613 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:05:14,616 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:05:14,619 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:05:14,622 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:05:14,624 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:05:14,629 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:05:14,630 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:05:14,631 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:05:14,631 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:05:14,632 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:05:14,633 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:05:14,634 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:05:14,635 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:05:14,636 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:05:14,637 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:05:14,642 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:05:14,651 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:05:14,653 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:05:14,655 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:05:14,656 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:05:14,669 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:05:14,669 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:05:14,670 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:05:14,672 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:05:14,672 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:05:14,673 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:05:14,673 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:05:14,674 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:05:14,676 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:05:14,677 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:05:14,679 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:05:14,680 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:05:14,680 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:05:14,681 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:05:14,681 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:05:14,682 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:05:14,683 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:05:14,684 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2979fe-72f5-43f5-90ae-e4fce6d6d8ec/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-20 11:05:14,720 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:05:14,720 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:05:14,721 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:05:14,721 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:05:14,722 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:05:14,723 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:05:14,724 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:05:14,724 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:05:14,724 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:05:14,724 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:05:14,726 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:05:14,726 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:05:14,726 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:05:14,726 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:05:14,727 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:05:14,727 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:05:14,727 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:05:14,728 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:05:14,728 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:05:14,728 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:05:14,728 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:05:14,729 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:05:14,729 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:05:14,729 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:05:14,729 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:05:14,730 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:05:14,730 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:05:14,730 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:05:14,731 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:05:14,731 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:05:14,731 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_7a2979fe-72f5-43f5-90ae-e4fce6d6d8ec/bin/uautomizer-ug76WZFUDN/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2979fe-72f5-43f5-90ae-e4fce6d6d8ec/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e2bae4e40ed29e38030a23f4409075f953591d0aab7a5344461847b398c5b718 [2022-11-20 11:05:15,046 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:05:15,073 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:05:15,076 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:05:15,077 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:05:15,078 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:05:15,079 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2979fe-72f5-43f5-90ae-e4fce6d6d8ec/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.counter.c [2022-11-20 11:05:18,136 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:05:18,368 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:05:18,369 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2979fe-72f5-43f5-90ae-e4fce6d6d8ec/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.counter.c [2022-11-20 11:05:18,375 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2979fe-72f5-43f5-90ae-e4fce6d6d8ec/bin/uautomizer-ug76WZFUDN/data/119f1893d/aba05399ccc54d43b3a3993fcf171021/FLAG6670fcf63 [2022-11-20 11:05:18,394 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2979fe-72f5-43f5-90ae-e4fce6d6d8ec/bin/uautomizer-ug76WZFUDN/data/119f1893d/aba05399ccc54d43b3a3993fcf171021 [2022-11-20 11:05:18,399 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:05:18,401 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:05:18,405 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:05:18,406 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:05:18,409 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:05:18,410 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:05:18" (1/1) ... [2022-11-20 11:05:18,411 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@183a719f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:05:18, skipping insertion in model container [2022-11-20 11:05:18,412 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:05:18" (1/1) ... [2022-11-20 11:05:18,420 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:05:18,450 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:05:18,586 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_7a2979fe-72f5-43f5-90ae-e4fce6d6d8ec/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.counter.c[1107,1120] [2022-11-20 11:05:18,648 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:05:18,653 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:05:18,664 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_7a2979fe-72f5-43f5-90ae-e4fce6d6d8ec/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.counter.c[1107,1120] [2022-11-20 11:05:18,677 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:05:18,690 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:05:18,691 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:05:18 WrapperNode [2022-11-20 11:05:18,691 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:05:18,692 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:05:18,692 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:05:18,693 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:05:18,699 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:05:18" (1/1) ... [2022-11-20 11:05:18,704 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:05:18" (1/1) ... [2022-11-20 11:05:18,722 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 60 [2022-11-20 11:05:18,722 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:05:18,723 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:05:18,723 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:05:18,724 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:05:18,731 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:05:18" (1/1) ... [2022-11-20 11:05:18,731 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:05:18" (1/1) ... [2022-11-20 11:05:18,732 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:05:18" (1/1) ... [2022-11-20 11:05:18,733 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:05:18" (1/1) ... [2022-11-20 11:05:18,737 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:05:18" (1/1) ... [2022-11-20 11:05:18,740 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:05:18" (1/1) ... [2022-11-20 11:05:18,746 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:05:18" (1/1) ... [2022-11-20 11:05:18,747 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:05:18" (1/1) ... [2022-11-20 11:05:18,749 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:05:18,750 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:05:18,758 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:05:18,760 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:05:18,761 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:05:18" (1/1) ... [2022-11-20 11:05:18,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:05:18,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2979fe-72f5-43f5-90ae-e4fce6d6d8ec/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:05:18,794 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2979fe-72f5-43f5-90ae-e4fce6d6d8ec/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:05:18,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2979fe-72f5-43f5-90ae-e4fce6d6d8ec/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:05:18,840 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:05:18,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:05:18,925 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:05:18,927 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:05:19,131 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:05:19,139 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:05:19,139 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 11:05:19,142 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:05:19 BoogieIcfgContainer [2022-11-20 11:05:19,142 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:05:19,145 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:05:19,146 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:05:19,149 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:05:19,150 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:05:18" (1/3) ... [2022-11-20 11:05:19,151 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7583a2ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:05:19, skipping insertion in model container [2022-11-20 11:05:19,151 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:05:18" (2/3) ... [2022-11-20 11:05:19,152 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7583a2ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:05:19, skipping insertion in model container [2022-11-20 11:05:19,152 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:05:19" (3/3) ... [2022-11-20 11:05:19,154 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.counter.c [2022-11-20 11:05:19,176 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:05:19,177 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 11:05:19,231 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:05:19,239 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;@7cf8958a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:05:19,239 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 11:05:19,244 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:05:19,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-20 11:05:19,252 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:05:19,253 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-20 11:05:19,254 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:05:19,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:05:19,260 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-20 11:05:19,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:05:19,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005128061] [2022-11-20 11:05:19,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:05:19,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:05:19,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:05:19,463 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:05:19,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:05:19,566 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 11:05:19,568 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 11:05:19,570 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-20 11:05:19,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 11:05:19,577 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-20 11:05:19,581 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 11:05:19,598 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-20 11:05:19,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 11:05:19 BoogieIcfgContainer [2022-11-20 11:05:19,607 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 11:05:19,609 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 11:05:19,609 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 11:05:19,610 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 11:05:19,610 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:05:19" (3/4) ... [2022-11-20 11:05:19,614 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-20 11:05:19,614 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 11:05:19,615 INFO L158 Benchmark]: Toolchain (without parser) took 1214.11ms. Allocated memory is still 161.5MB. Free memory was 127.3MB in the beginning and 97.6MB in the end (delta: 29.6MB). Peak memory consumption was 27.4MB. Max. memory is 16.1GB. [2022-11-20 11:05:19,616 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 125.8MB. Free memory is still 96.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:05:19,617 INFO L158 Benchmark]: CACSL2BoogieTranslator took 285.96ms. Allocated memory is still 161.5MB. Free memory was 127.3MB in the beginning and 130.4MB in the end (delta: -3.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-20 11:05:19,618 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.36ms. Allocated memory is still 161.5MB. Free memory was 129.9MB in the beginning and 128.0MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:05:19,619 INFO L158 Benchmark]: Boogie Preprocessor took 26.04ms. Allocated memory is still 161.5MB. Free memory was 128.0MB in the beginning and 127.0MB in the end (delta: 983.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:05:19,624 INFO L158 Benchmark]: RCFGBuilder took 392.27ms. Allocated memory is still 161.5MB. Free memory was 127.0MB in the beginning and 115.2MB in the end (delta: 11.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-20 11:05:19,625 INFO L158 Benchmark]: TraceAbstraction took 461.83ms. Allocated memory is still 161.5MB. Free memory was 114.4MB in the beginning and 97.6MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-20 11:05:19,627 INFO L158 Benchmark]: Witness Printer took 5.23ms. Allocated memory is still 161.5MB. Free memory is still 97.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:05:19,635 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 125.8MB. Free memory is still 96.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 285.96ms. Allocated memory is still 161.5MB. Free memory was 127.3MB in the beginning and 130.4MB in the end (delta: -3.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.36ms. Allocated memory is still 161.5MB. Free memory was 129.9MB in the beginning and 128.0MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.04ms. Allocated memory is still 161.5MB. Free memory was 128.0MB in the beginning and 127.0MB in the end (delta: 983.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 392.27ms. Allocated memory is still 161.5MB. Free memory was 127.0MB in the beginning and 115.2MB in the end (delta: 11.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 461.83ms. Allocated memory is still 161.5MB. Free memory was 114.4MB in the beginning and 97.6MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 5.23ms. Allocated memory is still 161.5MB. Free memory is still 97.6MB. There was no memory consumed. 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 - UnprovableResult [Line: 20]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseComplement at line 54, overapproximation of bitwiseAnd at line 47. Possible FailurePath: [L25] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L26] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L28] const SORT_4 mask_SORT_4 = (SORT_4)-1 >> (sizeof(SORT_4) * 8 - 4); [L29] const SORT_4 msb_SORT_4 = (SORT_4)1 << (4 - 1); [L31] const SORT_4 var_5 = 1; [L32] const SORT_4 var_8 = 0; [L33] const SORT_1 var_12 = 1; [L34] const SORT_4 var_18 = 15; [L36] SORT_1 input_2; [L37] SORT_1 input_3; [L39] SORT_4 state_6 = __VERIFIER_nondet_uchar() & mask_SORT_4; [L41] SORT_4 init_7_arg_1 = var_5; [L42] state_6 = init_7_arg_1 VAL [init_7_arg_1=1, mask_SORT_1=1, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_4=8, state_6=1, var_12=1, var_18=15, var_5=1, var_8=0] [L45] input_2 = __VERIFIER_nondet_uchar() [L46] input_3 = __VERIFIER_nondet_uchar() [L47] input_3 = input_3 & mask_SORT_1 [L50] SORT_4 var_9_arg_0 = state_6; [L51] SORT_4 var_9_arg_1 = var_8; [L52] SORT_1 var_9 = var_9_arg_0 != var_9_arg_1; [L53] SORT_1 var_13_arg_0 = var_9; [L54] SORT_1 var_13 = ~var_13_arg_0; [L55] SORT_1 var_14_arg_0 = var_12; [L56] SORT_1 var_14_arg_1 = var_13; [L57] SORT_1 var_14 = var_14_arg_0 & var_14_arg_1; [L58] var_14 = var_14 & mask_SORT_1 [L59] SORT_1 bad_15_arg_0 = var_14; [L60] CALL __VERIFIER_assert(!(bad_15_arg_0)) [L20] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L20] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-20 11:05:19,661 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2979fe-72f5-43f5-90ae-e4fce6d6d8ec/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2979fe-72f5-43f5-90ae-e4fce6d6d8ec/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2979fe-72f5-43f5-90ae-e4fce6d6d8ec/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2979fe-72f5-43f5-90ae-e4fce6d6d8ec/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2979fe-72f5-43f5-90ae-e4fce6d6d8ec/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.counter.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2979fe-72f5-43f5-90ae-e4fce6d6d8ec/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2979fe-72f5-43f5-90ae-e4fce6d6d8ec/bin/uautomizer-ug76WZFUDN --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash e2bae4e40ed29e38030a23f4409075f953591d0aab7a5344461847b398c5b718 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 11:05:22,145 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:05:22,148 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:05:22,185 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:05:22,188 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:05:22,193 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:05:22,199 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:05:22,202 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:05:22,204 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:05:22,211 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:05:22,213 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:05:22,214 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:05:22,216 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:05:22,219 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:05:22,220 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:05:22,223 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:05:22,225 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:05:22,227 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:05:22,228 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:05:22,236 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:05:22,242 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:05:22,248 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:05:22,249 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:05:22,250 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:05:22,253 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:05:22,256 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:05:22,256 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:05:22,257 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:05:22,259 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:05:22,260 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:05:22,261 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:05:22,261 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:05:22,263 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:05:22,264 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:05:22,276 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:05:22,276 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:05:22,277 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:05:22,277 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:05:22,277 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:05:22,278 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:05:22,279 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:05:22,280 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2979fe-72f5-43f5-90ae-e4fce6d6d8ec/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-20 11:05:22,323 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:05:22,323 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:05:22,325 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:05:22,325 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:05:22,326 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:05:22,326 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:05:22,327 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:05:22,328 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:05:22,328 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:05:22,328 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:05:22,329 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:05:22,330 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:05:22,330 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:05:22,330 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:05:22,330 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 11:05:22,331 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 11:05:22,331 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 11:05:22,331 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:05:22,331 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:05:22,331 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:05:22,332 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:05:22,332 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:05:22,332 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:05:22,332 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:05:22,333 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:05:22,333 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:05:22,333 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:05:22,334 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-20 11:05:22,334 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 11:05:22,334 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:05:22,334 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:05:22,335 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:05:22,335 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 11:05:22,335 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2979fe-72f5-43f5-90ae-e4fce6d6d8ec/bin/uautomizer-ug76WZFUDN/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2979fe-72f5-43f5-90ae-e4fce6d6d8ec/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e2bae4e40ed29e38030a23f4409075f953591d0aab7a5344461847b398c5b718 [2022-11-20 11:05:22,714 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:05:22,751 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:05:22,753 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:05:22,755 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:05:22,755 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:05:22,757 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2979fe-72f5-43f5-90ae-e4fce6d6d8ec/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.counter.c [2022-11-20 11:05:25,919 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:05:26,179 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:05:26,180 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2979fe-72f5-43f5-90ae-e4fce6d6d8ec/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.counter.c [2022-11-20 11:05:26,187 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2979fe-72f5-43f5-90ae-e4fce6d6d8ec/bin/uautomizer-ug76WZFUDN/data/109bf39f3/2a29379d2dd546c0ae79fcb3731f6cbf/FLAGd262a09d3 [2022-11-20 11:05:26,206 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2979fe-72f5-43f5-90ae-e4fce6d6d8ec/bin/uautomizer-ug76WZFUDN/data/109bf39f3/2a29379d2dd546c0ae79fcb3731f6cbf [2022-11-20 11:05:26,209 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:05:26,210 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:05:26,212 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:05:26,212 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:05:26,235 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:05:26,236 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:05:26" (1/1) ... [2022-11-20 11:05:26,237 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11864220 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:05:26, skipping insertion in model container [2022-11-20 11:05:26,237 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:05:26" (1/1) ... [2022-11-20 11:05:26,245 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:05:26,275 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:05:26,459 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_7a2979fe-72f5-43f5-90ae-e4fce6d6d8ec/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.counter.c[1107,1120] [2022-11-20 11:05:26,516 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:05:26,524 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:05:26,537 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_7a2979fe-72f5-43f5-90ae-e4fce6d6d8ec/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.counter.c[1107,1120] [2022-11-20 11:05:26,571 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:05:26,589 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:05:26,591 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:05:26 WrapperNode [2022-11-20 11:05:26,591 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:05:26,594 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:05:26,594 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:05:26,594 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:05:26,601 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:05:26" (1/1) ... [2022-11-20 11:05:26,610 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:05:26" (1/1) ... [2022-11-20 11:05:26,637 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 60 [2022-11-20 11:05:26,637 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:05:26,639 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:05:26,639 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:05:26,639 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:05:26,648 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:05:26" (1/1) ... [2022-11-20 11:05:26,649 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:05:26" (1/1) ... [2022-11-20 11:05:26,661 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:05:26" (1/1) ... [2022-11-20 11:05:26,662 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:05:26" (1/1) ... [2022-11-20 11:05:26,674 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:05:26" (1/1) ... [2022-11-20 11:05:26,682 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:05:26" (1/1) ... [2022-11-20 11:05:26,683 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:05:26" (1/1) ... [2022-11-20 11:05:26,684 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:05:26" (1/1) ... [2022-11-20 11:05:26,687 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:05:26,693 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:05:26,693 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:05:26,694 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:05:26,694 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:05:26" (1/1) ... [2022-11-20 11:05:26,702 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:05:26,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2979fe-72f5-43f5-90ae-e4fce6d6d8ec/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:05:26,733 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2979fe-72f5-43f5-90ae-e4fce6d6d8ec/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:05:26,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2979fe-72f5-43f5-90ae-e4fce6d6d8ec/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:05:26,782 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:05:26,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:05:26,895 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:05:26,897 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:05:27,068 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:05:27,074 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:05:27,075 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 11:05:27,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:05:27 BoogieIcfgContainer [2022-11-20 11:05:27,077 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:05:27,079 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:05:27,079 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:05:27,082 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:05:27,083 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:05:26" (1/3) ... [2022-11-20 11:05:27,083 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cf4f1bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:05:27, skipping insertion in model container [2022-11-20 11:05:27,084 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:05:26" (2/3) ... [2022-11-20 11:05:27,084 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cf4f1bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:05:27, skipping insertion in model container [2022-11-20 11:05:27,084 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:05:27" (3/3) ... [2022-11-20 11:05:27,086 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.counter.c [2022-11-20 11:05:27,104 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:05:27,105 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 11:05:27,169 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:05:27,178 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;@53f933b5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:05:27,179 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 11:05:27,183 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:05:27,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-20 11:05:27,190 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:05:27,190 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-20 11:05:27,191 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:05:27,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:05:27,197 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-20 11:05:27,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:05:27,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1938714552] [2022-11-20 11:05:27,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:05:27,210 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:05:27,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2979fe-72f5-43f5-90ae-e4fce6d6d8ec/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:05:27,219 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2979fe-72f5-43f5-90ae-e4fce6d6d8ec/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:05:27,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2979fe-72f5-43f5-90ae-e4fce6d6d8ec/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-20 11:05:27,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:05:27,310 WARN L261 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-20 11:05:27,326 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:05:27,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:05:27,693 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:05:27,694 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:05:27,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1938714552] [2022-11-20 11:05:27,695 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1938714552] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:05:27,695 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:05:27,696 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 11:05:27,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632003212] [2022-11-20 11:05:27,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:05:27,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:05:27,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:05:27,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:05:27,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:05:27,750 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:05:27,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:05:27,838 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-20 11:05:27,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 11:05:27,841 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-20 11:05:27,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:05:27,849 INFO L225 Difference]: With dead ends: 20 [2022-11-20 11:05:27,850 INFO L226 Difference]: Without dead ends: 11 [2022-11-20 11:05:27,853 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:05:27,859 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:05:27,860 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:05:27,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-20 11:05:27,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-20 11:05:27,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:05:27,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-20 11:05:27,894 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-20 11:05:27,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:05:27,895 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-20 11:05:27,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:05:27,895 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-20 11:05:27,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-20 11:05:27,896 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:05:27,896 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-20 11:05:27,920 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2979fe-72f5-43f5-90ae-e4fce6d6d8ec/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-20 11:05:28,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2979fe-72f5-43f5-90ae-e4fce6d6d8ec/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:05:28,121 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:05:28,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:05:28,122 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-20 11:05:28,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:05:28,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [234282558] [2022-11-20 11:05:28,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:05:28,127 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:05:28,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2979fe-72f5-43f5-90ae-e4fce6d6d8ec/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:05:28,129 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2979fe-72f5-43f5-90ae-e4fce6d6d8ec/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:05:28,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2979fe-72f5-43f5-90ae-e4fce6d6d8ec/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-20 11:05:28,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:05:28,206 WARN L261 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-20 11:05:28,210 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:05:28,528 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:05:28,529 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:05:29,369 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:05:29,370 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:05:29,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [234282558] [2022-11-20 11:05:29,371 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [234282558] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:05:29,372 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 11:05:29,373 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-11-20 11:05:29,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929741625] [2022-11-20 11:05:29,377 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 11:05:29,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 11:05:29,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:05:29,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 11:05:29,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-11-20 11:05:29,382 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:05:29,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:05:29,467 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-11-20 11:05:29,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 11:05:29,468 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-20 11:05:29,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:05:29,468 INFO L225 Difference]: With dead ends: 16 [2022-11-20 11:05:29,468 INFO L226 Difference]: Without dead ends: 14 [2022-11-20 11:05:29,469 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:05:29,471 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 13 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 8 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:05:29,472 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 19 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 8 Unchecked, 0.0s Time] [2022-11-20 11:05:29,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-20 11:05:29,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2022-11-20 11:05:29,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:05:29,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-11-20 11:05:29,485 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2022-11-20 11:05:29,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:05:29,487 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-11-20 11:05:29,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:05:29,487 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-11-20 11:05:29,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-20 11:05:29,494 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:05:29,494 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-20 11:05:29,510 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2979fe-72f5-43f5-90ae-e4fce6d6d8ec/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-20 11:05:29,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2979fe-72f5-43f5-90ae-e4fce6d6d8ec/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:05:29,711 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:05:29,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:05:29,721 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2022-11-20 11:05:29,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:05:29,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1116381899] [2022-11-20 11:05:29,722 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 11:05:29,722 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:05:29,722 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2979fe-72f5-43f5-90ae-e4fce6d6d8ec/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:05:29,724 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2979fe-72f5-43f5-90ae-e4fce6d6d8ec/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:05:29,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2979fe-72f5-43f5-90ae-e4fce6d6d8ec/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-20 11:05:29,817 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-20 11:05:29,817 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 11:05:29,820 WARN L261 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 46 conjunts are in the unsatisfiable core [2022-11-20 11:05:29,826 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:05:30,371 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:05:30,372 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:05:32,051 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:05:32,052 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:05:32,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1116381899] [2022-11-20 11:05:32,052 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1116381899] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:05:32,053 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 11:05:32,053 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-11-20 11:05:32,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668857411] [2022-11-20 11:05:32,053 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 11:05:32,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 11:05:32,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:05:32,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 11:05:32,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:05:32,055 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:05:32,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:05:32,373 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2022-11-20 11:05:32,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 11:05:32,375 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-20 11:05:32,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:05:32,375 INFO L225 Difference]: With dead ends: 21 [2022-11-20 11:05:32,375 INFO L226 Difference]: Without dead ends: 19 [2022-11-20 11:05:32,376 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2022-11-20 11:05:32,377 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 17 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 17 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:05:32,378 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 23 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 17 Unchecked, 0.0s Time] [2022-11-20 11:05:32,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-11-20 11:05:32,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2022-11-20 11:05:32,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.0588235294117647) internal successors, (18), 17 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:05:32,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2022-11-20 11:05:32,389 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 11 [2022-11-20 11:05:32,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:05:32,390 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2022-11-20 11:05:32,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:05:32,391 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2022-11-20 11:05:32,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-20 11:05:32,392 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:05:32,392 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1] [2022-11-20 11:05:32,411 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2979fe-72f5-43f5-90ae-e4fce6d6d8ec/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-20 11:05:32,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2979fe-72f5-43f5-90ae-e4fce6d6d8ec/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:05:32,611 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:05:32,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:05:32,612 INFO L85 PathProgramCache]: Analyzing trace with hash -1250702327, now seen corresponding path program 3 times [2022-11-20 11:05:32,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:05:32,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1055396684] [2022-11-20 11:05:32,613 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-20 11:05:32,613 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:05:32,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2979fe-72f5-43f5-90ae-e4fce6d6d8ec/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:05:32,614 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2979fe-72f5-43f5-90ae-e4fce6d6d8ec/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:05:32,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2979fe-72f5-43f5-90ae-e4fce6d6d8ec/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-20 11:05:32,691 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-20 11:05:32,692 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 11:05:32,694 WARN L261 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 47 conjunts are in the unsatisfiable core [2022-11-20 11:05:32,699 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:05:33,390 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-20 11:05:33,390 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:05:45,151 WARN L233 SmtUtils]: Spent 10.18s on a formula simplification. DAG size of input: 163 DAG size of output: 113 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 11:05:46,388 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-20 11:05:46,388 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:05:46,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1055396684] [2022-11-20 11:05:46,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1055396684] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:05:46,389 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 11:05:46,389 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2022-11-20 11:05:46,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900264173] [2022-11-20 11:05:46,390 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 11:05:46,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-20 11:05:46,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:05:46,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-20 11:05:46,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2022-11-20 11:05:46,396 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand has 14 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 14 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) [2022-11-20 11:05:46,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:05:46,747 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2022-11-20 11:05:46,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 11:05:46,748 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 14 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 17 [2022-11-20 11:05:46,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:05:46,748 INFO L225 Difference]: With dead ends: 18 [2022-11-20 11:05:46,749 INFO L226 Difference]: Without dead ends: 0 [2022-11-20 11:05:46,750 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 11.6s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2022-11-20 11:05:46,752 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 7 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 17 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:05:46,755 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 11 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 17 Unchecked, 0.0s Time] [2022-11-20 11:05:46,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-20 11:05:46,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-20 11:05:46,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:05:46,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-20 11:05:46,760 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2022-11-20 11:05:46,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:05:46,761 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 11:05:46,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 14 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) [2022-11-20 11:05:46,763 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-20 11:05:46,763 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-20 11:05:46,766 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-20 11:05:46,790 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2979fe-72f5-43f5-90ae-e4fce6d6d8ec/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-20 11:05:46,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2979fe-72f5-43f5-90ae-e4fce6d6d8ec/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:05:46,982 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-20 11:05:47,186 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-20 11:05:47,186 INFO L895 garLoopResultBuilder]: At program point L81(lines 22 82) the Hoare annotation is: false [2022-11-20 11:05:47,187 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-20 11:05:47,187 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-20 11:05:47,187 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-20 11:05:47,187 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 20) no Hoare annotation was computed. [2022-11-20 11:05:47,187 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2022-11-20 11:05:47,187 INFO L899 garLoopResultBuilder]: For program point L20-1(line 20) no Hoare annotation was computed. [2022-11-20 11:05:47,187 INFO L899 garLoopResultBuilder]: For program point L20-3(line 20) no Hoare annotation was computed. [2022-11-20 11:05:47,188 INFO L895 garLoopResultBuilder]: At program point L43-2(lines 43 80) the Hoare annotation is: (let ((.cse0 (= (_ bv1 8) |ULTIMATE.start_main_~mask_SORT_1~0#1|)) (.cse1 (= |ULTIMATE.start_main_~var_8~0#1| (_ bv0 8))) (.cse2 (= (_ bv15 8) |ULTIMATE.start_main_~mask_SORT_4~0#1|)) (.cse3 (= (_ bv15 8) |ULTIMATE.start_main_~var_18~0#1|)) (.cse4 (= (_ bv1 8) |ULTIMATE.start_main_~var_12~0#1|))) (or (and .cse0 (not (= |ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv0 32))) (= (_ bv1 8) |ULTIMATE.start_main_~var_5~0#1|) .cse1 .cse2 .cse3 .cse4 (not (= ((_ zero_extend 24) |ULTIMATE.start_main_~state_6~0#1|) ((_ zero_extend 24) |ULTIMATE.start_main_~var_8~0#1|))) (exists ((|ULTIMATE.start_main_~var_21_arg_1~0#1| (_ BitVec 8))) (= ((_ extract 7 0) (bvand ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_4~0#1|) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |ULTIMATE.start_main_~var_21_arg_1~0#1|))))) |ULTIMATE.start_main_~state_6~0#1|))) (and .cse0 .cse1 (= (_ bv1 8) |ULTIMATE.start_main_~state_6~0#1|) .cse2 (= |ULTIMATE.start_main_~state_6~0#1| |ULTIMATE.start_main_~var_5~0#1|) .cse3 .cse4))) [2022-11-20 11:05:47,188 INFO L899 garLoopResultBuilder]: For program point L43-3(lines 43 80) no Hoare annotation was computed. [2022-11-20 11:05:47,196 INFO L444 BasicCegarLoop]: Path program histogram: [3, 1] [2022-11-20 11:05:47,198 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 11:05:47,205 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_21_arg_1~0#1,QUANTIFIED] [2022-11-20 11:05:47,215 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_21_arg_1~0#1,QUANTIFIED] [2022-11-20 11:05:47,219 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 11:05:47 BoogieIcfgContainer [2022-11-20 11:05:47,219 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 11:05:47,220 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 11:05:47,220 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 11:05:47,220 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 11:05:47,220 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:05:27" (3/4) ... [2022-11-20 11:05:47,223 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 11:05:47,233 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-11-20 11:05:47,234 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-20 11:05:47,234 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 11:05:47,264 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((1bv8 == mask_SORT_1 && !(cond == 0bv32)) && 1bv8 == var_5) && var_8 == 0bv8) && 15bv8 == mask_SORT_4) && 15bv8 == var_18) && 1bv8 == var_12) && !(~zero_extendFrom8To32(state_6) == ~zero_extendFrom8To32(var_8))) && (\exists ULTIMATE.start_main_~var_21_arg_1~0#1 : bv8 :: ~bvand32(~zero_extendFrom8To32(mask_SORT_4), ~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_21_arg_1~0#1)[7:0]))[7:0] == state_6)) || ((((((1bv8 == mask_SORT_1 && var_8 == 0bv8) && 1bv8 == state_6) && 15bv8 == mask_SORT_4) && state_6 == var_5) && 15bv8 == var_18) && 1bv8 == var_12) [2022-11-20 11:05:47,279 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2979fe-72f5-43f5-90ae-e4fce6d6d8ec/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 11:05:47,280 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 11:05:47,281 INFO L158 Benchmark]: Toolchain (without parser) took 21070.15ms. Allocated memory was 86.0MB in the beginning and 151.0MB in the end (delta: 65.0MB). Free memory was 63.9MB in the beginning and 51.9MB in the end (delta: 12.0MB). Peak memory consumption was 78.6MB. Max. memory is 16.1GB. [2022-11-20 11:05:47,281 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 60.8MB. Free memory was 39.3MB in the beginning and 39.3MB in the end (delta: 44.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:05:47,281 INFO L158 Benchmark]: CACSL2BoogieTranslator took 380.13ms. Allocated memory is still 86.0MB. Free memory was 63.7MB in the beginning and 52.5MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-20 11:05:47,282 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.99ms. Allocated memory is still 86.0MB. Free memory was 52.3MB in the beginning and 50.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:05:47,282 INFO L158 Benchmark]: Boogie Preprocessor took 53.42ms. Allocated memory is still 86.0MB. Free memory was 50.9MB in the beginning and 49.6MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:05:47,282 INFO L158 Benchmark]: RCFGBuilder took 383.71ms. Allocated memory is still 86.0MB. Free memory was 49.4MB in the beginning and 60.3MB in the end (delta: -10.8MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. [2022-11-20 11:05:47,283 INFO L158 Benchmark]: TraceAbstraction took 20140.02ms. Allocated memory was 86.0MB in the beginning and 151.0MB in the end (delta: 65.0MB). Free memory was 59.4MB in the beginning and 55.1MB in the end (delta: 4.4MB). Peak memory consumption was 68.5MB. Max. memory is 16.1GB. [2022-11-20 11:05:47,284 INFO L158 Benchmark]: Witness Printer took 60.14ms. Allocated memory is still 151.0MB. Free memory was 55.1MB in the beginning and 51.9MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 11:05:47,289 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 60.8MB. Free memory was 39.3MB in the beginning and 39.3MB in the end (delta: 44.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 380.13ms. Allocated memory is still 86.0MB. Free memory was 63.7MB in the beginning and 52.5MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.99ms. Allocated memory is still 86.0MB. Free memory was 52.3MB in the beginning and 50.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.42ms. Allocated memory is still 86.0MB. Free memory was 50.9MB in the beginning and 49.6MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 383.71ms. Allocated memory is still 86.0MB. Free memory was 49.4MB in the beginning and 60.3MB in the end (delta: -10.8MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. * TraceAbstraction took 20140.02ms. Allocated memory was 86.0MB in the beginning and 151.0MB in the end (delta: 65.0MB). Free memory was 59.4MB in the beginning and 55.1MB in the end (delta: 4.4MB). Peak memory consumption was 68.5MB. Max. memory is 16.1GB. * Witness Printer took 60.14ms. Allocated memory is still 151.0MB. Free memory was 55.1MB in the beginning and 51.9MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_21_arg_1~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_21_arg_1~0#1,QUANTIFIED] * 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: 20]: 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 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 20.0s, OverallIterations: 4, TraceHistogramMax: 5, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 41 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 41 mSDsluCounter, 66 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 42 IncrementalHoareTripleChecker+Unchecked, 50 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 41 IncrementalHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 16 mSDtfsCounter, 41 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 86 GetRequests, 44 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 13.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=3, InterpolantAutomatonStates: 29, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 5 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 7 NumberOfFragments, 64 HoareAnnotationTreeSize, 2 FomulaSimplifications, 56 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 210 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 17.5s InterpolantComputationTime, 41 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 70 ConstructedInterpolants, 28 QuantifiedInterpolants, 5891 SizeOfPredicates, 142 NumberOfNonLiveVariables, 262 ConjunctsInSsa, 141 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 21/70 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: 43]: Loop Invariant [2022-11-20 11:05:47,299 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_21_arg_1~0#1,QUANTIFIED] [2022-11-20 11:05:47,303 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_21_arg_1~0#1,QUANTIFIED] Derived loop invariant: ((((((((1bv8 == mask_SORT_1 && !(cond == 0bv32)) && 1bv8 == var_5) && var_8 == 0bv8) && 15bv8 == mask_SORT_4) && 15bv8 == var_18) && 1bv8 == var_12) && !(~zero_extendFrom8To32(state_6) == ~zero_extendFrom8To32(var_8))) && (\exists ULTIMATE.start_main_~var_21_arg_1~0#1 : bv8 :: ~bvand32(~zero_extendFrom8To32(mask_SORT_4), ~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_21_arg_1~0#1)[7:0]))[7:0] == state_6)) || ((((((1bv8 == mask_SORT_1 && var_8 == 0bv8) && 1bv8 == state_6) && 15bv8 == mask_SORT_4) && state_6 == var_5) && 15bv8 == var_18) && 1bv8 == var_12) - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2022-11-20 11:05:47,324 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2979fe-72f5-43f5-90ae-e4fce6d6d8ec/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE