./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b02.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f27ca-9d1f-48fa-8d9f-b78255b17487/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f27ca-9d1f-48fa-8d9f-b78255b17487/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f27ca-9d1f-48fa-8d9f-b78255b17487/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f27ca-9d1f-48fa-8d9f-b78255b17487/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b02.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f27ca-9d1f-48fa-8d9f-b78255b17487/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f27ca-9d1f-48fa-8d9f-b78255b17487/bin/uautomizer-ZsLfNo2U6R --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 b85d52a1932fa85f97c362ca60a681b550e6be8c5a2b0a8b0363e5b8a5a0a447 --- 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-38b53e6 [2022-11-25 18:26:31,203 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 18:26:31,205 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 18:26:31,228 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 18:26:31,229 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 18:26:31,230 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 18:26:31,231 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 18:26:31,233 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 18:26:31,235 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 18:26:31,236 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 18:26:31,237 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 18:26:31,238 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 18:26:31,239 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 18:26:31,240 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 18:26:31,241 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 18:26:31,242 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 18:26:31,243 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 18:26:31,244 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 18:26:31,246 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 18:26:31,248 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 18:26:31,250 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 18:26:31,252 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 18:26:31,253 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 18:26:31,254 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 18:26:31,258 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 18:26:31,258 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 18:26:31,259 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 18:26:31,260 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 18:26:31,260 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 18:26:31,262 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 18:26:31,262 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 18:26:31,263 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 18:26:31,264 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 18:26:31,265 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 18:26:31,266 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 18:26:31,266 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 18:26:31,267 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 18:26:31,267 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 18:26:31,267 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 18:26:31,268 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 18:26:31,269 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 18:26:31,270 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f27ca-9d1f-48fa-8d9f-b78255b17487/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-25 18:26:31,295 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 18:26:31,295 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 18:26:31,295 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 18:26:31,296 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 18:26:31,297 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 18:26:31,297 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 18:26:31,298 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 18:26:31,298 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 18:26:31,298 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 18:26:31,298 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 18:26:31,299 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 18:26:31,299 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 18:26:31,299 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 18:26:31,300 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 18:26:31,300 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 18:26:31,300 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 18:26:31,301 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 18:26:31,301 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 18:26:31,301 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 18:26:31,301 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 18:26:31,302 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 18:26:31,302 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:26:31,302 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 18:26:31,303 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 18:26:31,303 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 18:26:31,303 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 18:26:31,304 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 18:26:31,304 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 18:26:31,304 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 18:26:31,304 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 18:26:31,305 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 18:26:31,305 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_062f27ca-9d1f-48fa-8d9f-b78255b17487/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f27ca-9d1f-48fa-8d9f-b78255b17487/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b85d52a1932fa85f97c362ca60a681b550e6be8c5a2b0a8b0363e5b8a5a0a447 [2022-11-25 18:26:31,594 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 18:26:31,630 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 18:26:31,633 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 18:26:31,634 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 18:26:31,635 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 18:26:31,636 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f27ca-9d1f-48fa-8d9f-b78255b17487/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b02.c [2022-11-25 18:26:34,739 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 18:26:34,993 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 18:26:34,994 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f27ca-9d1f-48fa-8d9f-b78255b17487/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b02.c [2022-11-25 18:26:35,005 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f27ca-9d1f-48fa-8d9f-b78255b17487/bin/uautomizer-ZsLfNo2U6R/data/157d0bbbd/75d1d1745fc845e88cec817385d6ed34/FLAG2465961f1 [2022-11-25 18:26:35,022 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f27ca-9d1f-48fa-8d9f-b78255b17487/bin/uautomizer-ZsLfNo2U6R/data/157d0bbbd/75d1d1745fc845e88cec817385d6ed34 [2022-11-25 18:26:35,029 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 18:26:35,031 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 18:26:35,035 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 18:26:35,035 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 18:26:35,039 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 18:26:35,039 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:26:35" (1/1) ... [2022-11-25 18:26:35,040 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ef71fa9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:26:35, skipping insertion in model container [2022-11-25 18:26:35,041 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:26:35" (1/1) ... [2022-11-25 18:26:35,049 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 18:26:35,095 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 18:26:35,238 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_062f27ca-9d1f-48fa-8d9f-b78255b17487/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b02.c[1107,1120] [2022-11-25 18:26:35,331 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:26:35,340 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 18:26:35,351 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_062f27ca-9d1f-48fa-8d9f-b78255b17487/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b02.c[1107,1120] [2022-11-25 18:26:35,441 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:26:35,477 INFO L208 MainTranslator]: Completed translation [2022-11-25 18:26:35,477 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:26:35 WrapperNode [2022-11-25 18:26:35,478 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 18:26:35,479 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 18:26:35,479 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 18:26:35,479 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 18:26:35,485 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:26:35" (1/1) ... [2022-11-25 18:26:35,495 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:26:35" (1/1) ... [2022-11-25 18:26:35,538 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 270 [2022-11-25 18:26:35,539 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 18:26:35,539 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 18:26:35,539 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 18:26:35,540 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 18:26:35,551 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:26:35" (1/1) ... [2022-11-25 18:26:35,551 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:26:35" (1/1) ... [2022-11-25 18:26:35,556 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:26:35" (1/1) ... [2022-11-25 18:26:35,556 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:26:35" (1/1) ... [2022-11-25 18:26:35,565 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:26:35" (1/1) ... [2022-11-25 18:26:35,569 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:26:35" (1/1) ... [2022-11-25 18:26:35,571 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:26:35" (1/1) ... [2022-11-25 18:26:35,573 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:26:35" (1/1) ... [2022-11-25 18:26:35,577 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 18:26:35,577 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 18:26:35,578 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 18:26:35,578 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 18:26:35,579 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:26:35" (1/1) ... [2022-11-25 18:26:35,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:26:35,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f27ca-9d1f-48fa-8d9f-b78255b17487/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:26:35,611 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f27ca-9d1f-48fa-8d9f-b78255b17487/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 18:26:35,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f27ca-9d1f-48fa-8d9f-b78255b17487/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 18:26:35,678 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 18:26:35,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 18:26:35,828 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 18:26:35,830 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 18:26:36,851 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 18:26:36,870 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 18:26:36,874 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 18:26:36,876 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:26:36 BoogieIcfgContainer [2022-11-25 18:26:36,876 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 18:26:36,878 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 18:26:36,878 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 18:26:36,881 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 18:26:36,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:26:35" (1/3) ... [2022-11-25 18:26:36,887 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a555696 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:26:36, skipping insertion in model container [2022-11-25 18:26:36,887 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:26:35" (2/3) ... [2022-11-25 18:26:36,889 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a555696 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:26:36, skipping insertion in model container [2022-11-25 18:26:36,890 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:26:36" (3/3) ... [2022-11-25 18:26:36,894 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.h_b02.c [2022-11-25 18:26:36,912 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 18:26:36,912 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 18:26:36,975 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 18:26:36,982 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;@37b19d5f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 18:26:36,982 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 18:26:36,986 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) [2022-11-25 18:26:36,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-25 18:26:36,992 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:26:36,993 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 18:26:36,993 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:26:37,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:26:37,001 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-25 18:26:37,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:26:37,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594624523] [2022-11-25 18:26:37,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:26:37,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:26:37,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:26:37,259 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 18:26:37,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:26:37,418 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 18:26:37,419 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 18:26:37,421 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-25 18:26:37,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 18:26:37,431 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-11-25 18:26:37,435 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 18:26:37,463 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-25 18:26:37,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 06:26:37 BoogieIcfgContainer [2022-11-25 18:26:37,474 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 18:26:37,475 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 18:26:37,476 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 18:26:37,476 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 18:26:37,476 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:26:36" (3/4) ... [2022-11-25 18:26:37,480 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 18:26:37,480 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 18:26:37,481 INFO L158 Benchmark]: Toolchain (without parser) took 2450.57ms. Allocated memory is still 203.4MB. Free memory was 160.2MB in the beginning and 92.3MB in the end (delta: 67.9MB). Peak memory consumption was 70.2MB. Max. memory is 16.1GB. [2022-11-25 18:26:37,482 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 142.6MB. Free memory is still 84.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 18:26:37,482 INFO L158 Benchmark]: CACSL2BoogieTranslator took 443.23ms. Allocated memory is still 203.4MB. Free memory was 159.6MB in the beginning and 143.4MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-25 18:26:37,484 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.01ms. Allocated memory is still 203.4MB. Free memory was 143.4MB in the beginning and 139.9MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 18:26:37,485 INFO L158 Benchmark]: Boogie Preprocessor took 37.41ms. Allocated memory is still 203.4MB. Free memory was 139.9MB in the beginning and 137.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 18:26:37,490 INFO L158 Benchmark]: RCFGBuilder took 1298.91ms. Allocated memory is still 203.4MB. Free memory was 137.8MB in the beginning and 116.4MB in the end (delta: 21.3MB). Peak memory consumption was 53.4MB. Max. memory is 16.1GB. [2022-11-25 18:26:37,491 INFO L158 Benchmark]: TraceAbstraction took 595.82ms. Allocated memory is still 203.4MB. Free memory was 115.4MB in the beginning and 92.3MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-11-25 18:26:37,493 INFO L158 Benchmark]: Witness Printer took 4.85ms. Allocated memory is still 203.4MB. Free memory is still 92.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 18:26:37,501 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 142.6MB. Free memory is still 84.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 443.23ms. Allocated memory is still 203.4MB. Free memory was 159.6MB in the beginning and 143.4MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.01ms. Allocated memory is still 203.4MB. Free memory was 143.4MB in the beginning and 139.9MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.41ms. Allocated memory is still 203.4MB. Free memory was 139.9MB in the beginning and 137.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1298.91ms. Allocated memory is still 203.4MB. Free memory was 137.8MB in the beginning and 116.4MB in the end (delta: 21.3MB). Peak memory consumption was 53.4MB. Max. memory is 16.1GB. * TraceAbstraction took 595.82ms. Allocated memory is still 203.4MB. Free memory was 115.4MB in the beginning and 92.3MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Witness Printer took 4.85ms. Allocated memory is still 203.4MB. Free memory is still 92.3MB. 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 78, overapproximation of bitwiseOr at line 87, overapproximation of bitwiseAnd at line 72. 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_7 mask_SORT_7 = (SORT_7)-1 >> (sizeof(SORT_7) * 8 - 32); [L29] const SORT_7 msb_SORT_7 = (SORT_7)1 << (32 - 1); [L31] const SORT_12 mask_SORT_12 = (SORT_12)-1 >> (sizeof(SORT_12) * 8 - 3); [L32] const SORT_12 msb_SORT_12 = (SORT_12)1 << (3 - 1); [L34] const SORT_47 mask_SORT_47 = (SORT_47)-1 >> (sizeof(SORT_47) * 8 - 2); [L35] const SORT_47 msb_SORT_47 = (SORT_47)1 << (2 - 1); [L37] const SORT_1 var_4 = 0; [L38] const SORT_7 var_9 = 1; [L39] const SORT_12 var_13 = 0; [L40] const SORT_1 var_21 = 1; [L41] const SORT_12 var_28 = 2; [L42] const SORT_12 var_31 = 1; [L43] const SORT_12 var_35 = 4; [L44] const SORT_12 var_38 = 6; [L45] const SORT_12 var_41 = 5; [L46] const SORT_12 var_45 = 3; [L47] const SORT_7 var_57 = 0; [L49] SORT_1 input_2; [L50] SORT_1 input_3; [L51] SORT_12 input_55; [L52] SORT_12 input_62; [L53] SORT_12 input_75; [L55] SORT_1 state_5 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L56] SORT_12 state_14 = __VERIFIER_nondet_uchar() & mask_SORT_12; [L58] SORT_1 init_6_arg_1 = var_4; [L59] state_5 = init_6_arg_1 [L60] SORT_12 init_15_arg_1 = var_13; [L61] state_14 = init_15_arg_1 VAL [init_15_arg_1=0, init_6_arg_1=0, mask_SORT_1=1, mask_SORT_12=7, mask_SORT_47=3, mask_SORT_7=4294967295, msb_SORT_1=1, msb_SORT_12=4, msb_SORT_47=2, msb_SORT_7=2147483648, state_14=0, state_5=0, var_13=0, var_21=1, var_28=2, var_31=1, var_35=4, var_38=6, var_4=0, var_41=5, var_45=3, var_57=0, var_9=1] [L64] input_2 = __VERIFIER_nondet_uchar() [L65] input_3 = __VERIFIER_nondet_uchar() [L66] input_55 = __VERIFIER_nondet_uchar() [L67] input_62 = __VERIFIER_nondet_uchar() [L68] input_75 = __VERIFIER_nondet_uchar() [L71] SORT_1 var_8_arg_0 = state_5; [L72] var_8_arg_0 = var_8_arg_0 & mask_SORT_1 [L73] SORT_7 var_8 = var_8_arg_0; [L74] SORT_7 var_10_arg_0 = var_8; [L75] SORT_7 var_10_arg_1 = var_9; [L76] SORT_1 var_10 = var_10_arg_0 == var_10_arg_1; [L77] SORT_1 var_11_arg_0 = var_10; [L78] SORT_1 var_11 = ~var_11_arg_0; [L79] SORT_12 var_16_arg_0 = state_14; [L80] var_16_arg_0 = var_16_arg_0 & mask_SORT_12 [L81] SORT_7 var_16 = var_16_arg_0; [L82] SORT_7 var_17_arg_0 = var_16; [L83] SORT_7 var_17_arg_1 = var_9; [L84] SORT_1 var_17 = var_17_arg_0 == var_17_arg_1; [L85] SORT_1 var_18_arg_0 = var_11; [L86] SORT_1 var_18_arg_1 = var_17; [L87] SORT_1 var_18 = var_18_arg_0 | var_18_arg_1; [L88] SORT_1 var_22_arg_0 = var_18; [L89] SORT_1 var_22 = ~var_22_arg_0; [L90] SORT_1 var_23_arg_0 = var_21; [L91] SORT_1 var_23_arg_1 = var_22; [L92] SORT_1 var_23 = var_23_arg_0 & var_23_arg_1; [L93] var_23 = var_23 & mask_SORT_1 [L94] SORT_1 bad_24_arg_0 = var_23; [L95] CALL __VERIFIER_assert(!(bad_24_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: 0.5s, 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, 0.2s 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 [2022-11-25 18:26:37,525 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f27ca-9d1f-48fa-8d9f-b78255b17487/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with 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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f27ca-9d1f-48fa-8d9f-b78255b17487/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f27ca-9d1f-48fa-8d9f-b78255b17487/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f27ca-9d1f-48fa-8d9f-b78255b17487/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f27ca-9d1f-48fa-8d9f-b78255b17487/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b02.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f27ca-9d1f-48fa-8d9f-b78255b17487/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f27ca-9d1f-48fa-8d9f-b78255b17487/bin/uautomizer-ZsLfNo2U6R --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 b85d52a1932fa85f97c362ca60a681b550e6be8c5a2b0a8b0363e5b8a5a0a447 --- 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-38b53e6 [2022-11-25 18:26:39,914 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 18:26:39,916 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 18:26:39,938 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 18:26:39,939 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 18:26:39,940 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 18:26:39,941 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 18:26:39,943 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 18:26:39,945 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 18:26:39,946 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 18:26:39,947 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 18:26:39,948 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 18:26:39,949 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 18:26:39,950 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 18:26:39,951 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 18:26:39,952 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 18:26:39,953 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 18:26:39,954 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 18:26:39,956 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 18:26:39,958 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 18:26:39,960 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 18:26:39,961 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 18:26:39,962 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 18:26:39,963 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 18:26:39,967 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 18:26:39,967 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 18:26:39,968 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 18:26:39,969 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 18:26:39,969 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 18:26:39,971 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 18:26:39,971 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 18:26:39,972 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 18:26:39,973 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 18:26:39,983 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 18:26:39,985 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 18:26:39,985 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 18:26:39,986 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 18:26:39,987 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 18:26:39,987 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 18:26:39,988 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 18:26:39,989 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 18:26:39,990 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f27ca-9d1f-48fa-8d9f-b78255b17487/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-25 18:26:40,035 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 18:26:40,037 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 18:26:40,039 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 18:26:40,039 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 18:26:40,040 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 18:26:40,040 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 18:26:40,041 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 18:26:40,041 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 18:26:40,041 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 18:26:40,042 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 18:26:40,043 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 18:26:40,043 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 18:26:40,043 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 18:26:40,043 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 18:26:40,043 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 18:26:40,044 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-25 18:26:40,044 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-25 18:26:40,044 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 18:26:40,044 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 18:26:40,044 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 18:26:40,045 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 18:26:40,045 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 18:26:40,045 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 18:26:40,045 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:26:40,046 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 18:26:40,046 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 18:26:40,046 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 18:26:40,046 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-25 18:26:40,046 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-25 18:26:40,047 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 18:26:40,047 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 18:26:40,047 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 18:26:40,047 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 18:26:40,048 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-11-25 18:26:40,048 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_062f27ca-9d1f-48fa-8d9f-b78255b17487/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f27ca-9d1f-48fa-8d9f-b78255b17487/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b85d52a1932fa85f97c362ca60a681b550e6be8c5a2b0a8b0363e5b8a5a0a447 [2022-11-25 18:26:40,410 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 18:26:40,439 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 18:26:40,443 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 18:26:40,444 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 18:26:40,445 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 18:26:40,447 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f27ca-9d1f-48fa-8d9f-b78255b17487/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b02.c [2022-11-25 18:26:43,563 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 18:26:43,829 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 18:26:43,830 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f27ca-9d1f-48fa-8d9f-b78255b17487/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b02.c [2022-11-25 18:26:43,846 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f27ca-9d1f-48fa-8d9f-b78255b17487/bin/uautomizer-ZsLfNo2U6R/data/2465bcfc0/772d04a881c14396bb01669465cc8820/FLAGfa28abe41 [2022-11-25 18:26:43,870 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f27ca-9d1f-48fa-8d9f-b78255b17487/bin/uautomizer-ZsLfNo2U6R/data/2465bcfc0/772d04a881c14396bb01669465cc8820 [2022-11-25 18:26:43,872 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 18:26:43,874 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 18:26:43,875 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 18:26:43,876 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 18:26:43,879 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 18:26:43,880 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:26:43" (1/1) ... [2022-11-25 18:26:43,881 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ec994c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:26:43, skipping insertion in model container [2022-11-25 18:26:43,881 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:26:43" (1/1) ... [2022-11-25 18:26:43,888 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 18:26:43,914 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 18:26:44,099 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_062f27ca-9d1f-48fa-8d9f-b78255b17487/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b02.c[1107,1120] [2022-11-25 18:26:44,205 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:26:44,216 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 18:26:44,228 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_062f27ca-9d1f-48fa-8d9f-b78255b17487/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b02.c[1107,1120] [2022-11-25 18:26:44,278 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:26:44,291 INFO L208 MainTranslator]: Completed translation [2022-11-25 18:26:44,292 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:26:44 WrapperNode [2022-11-25 18:26:44,292 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 18:26:44,293 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 18:26:44,293 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 18:26:44,294 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 18:26:44,310 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:26:44" (1/1) ... [2022-11-25 18:26:44,321 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:26:44" (1/1) ... [2022-11-25 18:26:44,354 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 270 [2022-11-25 18:26:44,355 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 18:26:44,356 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 18:26:44,356 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 18:26:44,356 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 18:26:44,365 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:26:44" (1/1) ... [2022-11-25 18:26:44,366 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:26:44" (1/1) ... [2022-11-25 18:26:44,370 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:26:44" (1/1) ... [2022-11-25 18:26:44,370 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:26:44" (1/1) ... [2022-11-25 18:26:44,378 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:26:44" (1/1) ... [2022-11-25 18:26:44,382 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:26:44" (1/1) ... [2022-11-25 18:26:44,384 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:26:44" (1/1) ... [2022-11-25 18:26:44,386 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:26:44" (1/1) ... [2022-11-25 18:26:44,390 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 18:26:44,391 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 18:26:44,391 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 18:26:44,391 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 18:26:44,392 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:26:44" (1/1) ... [2022-11-25 18:26:44,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:26:44,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f27ca-9d1f-48fa-8d9f-b78255b17487/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:26:44,431 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f27ca-9d1f-48fa-8d9f-b78255b17487/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 18:26:44,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f27ca-9d1f-48fa-8d9f-b78255b17487/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 18:26:44,487 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 18:26:44,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 18:26:44,639 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 18:26:44,641 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 18:26:45,120 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 18:26:45,127 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 18:26:45,135 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 18:26:45,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:26:45 BoogieIcfgContainer [2022-11-25 18:26:45,137 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 18:26:45,140 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 18:26:45,140 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 18:26:45,143 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 18:26:45,144 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:26:43" (1/3) ... [2022-11-25 18:26:45,145 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f99429b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:26:45, skipping insertion in model container [2022-11-25 18:26:45,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:26:44" (2/3) ... [2022-11-25 18:26:45,147 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f99429b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:26:45, skipping insertion in model container [2022-11-25 18:26:45,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:26:45" (3/3) ... [2022-11-25 18:26:45,148 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.h_b02.c [2022-11-25 18:26:45,168 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 18:26:45,168 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 18:26:45,230 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 18:26:45,237 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;@e2660d5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 18:26:45,237 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 18:26:45,242 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) [2022-11-25 18:26:45,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-25 18:26:45,251 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:26:45,252 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 18:26:45,252 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:26:45,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:26:45,259 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-25 18:26:45,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:26:45,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1337011643] [2022-11-25 18:26:45,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:26:45,278 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 [2022-11-25 18:26:45,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f27ca-9d1f-48fa-8d9f-b78255b17487/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 18:26:45,287 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f27ca-9d1f-48fa-8d9f-b78255b17487/bin/uautomizer-ZsLfNo2U6R/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) [2022-11-25 18:26:45,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f27ca-9d1f-48fa-8d9f-b78255b17487/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 18:26:45,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:45,484 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 22 conjunts are in the unsatisfiable core [2022-11-25 18:26:45,491 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:26:45,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:26:45,725 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 18:26:45,726 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:26:45,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1337011643] [2022-11-25 18:26:45,727 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1337011643] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:26:45,727 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:26:45,727 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 18:26:45,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552189695] [2022-11-25 18:26:45,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:26:45,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 18:26:45,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:26:45,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 18:26:45,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 18:26:45,771 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) [2022-11-25 18:26:45,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:26:45,839 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-25 18:26:45,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 18:26:45,842 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 [2022-11-25 18:26:45,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:26:45,850 INFO L225 Difference]: With dead ends: 20 [2022-11-25 18:26:45,850 INFO L226 Difference]: Without dead ends: 11 [2022-11-25 18:26:45,853 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 18:26:45,856 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 [2022-11-25 18:26:45,858 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] [2022-11-25 18:26:45,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-25 18:26:45,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-25 18:26:45,891 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) [2022-11-25 18:26:45,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-25 18:26:45,894 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-25 18:26:45,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:26:45,895 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-25 18:26:45,895 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) [2022-11-25 18:26:45,895 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-25 18:26:45,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-25 18:26:45,896 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:26:45,896 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-25 18:26:45,923 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f27ca-9d1f-48fa-8d9f-b78255b17487/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 18:26:46,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f27ca-9d1f-48fa-8d9f-b78255b17487/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 18:26:46,121 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:26:46,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:26:46,122 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-25 18:26:46,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:26:46,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1533678500] [2022-11-25 18:26:46,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:26:46,125 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 [2022-11-25 18:26:46,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f27ca-9d1f-48fa-8d9f-b78255b17487/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 18:26:46,144 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f27ca-9d1f-48fa-8d9f-b78255b17487/bin/uautomizer-ZsLfNo2U6R/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) [2022-11-25 18:26:46,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f27ca-9d1f-48fa-8d9f-b78255b17487/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 18:26:46,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:46,351 INFO L263 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 74 conjunts are in the unsatisfiable core [2022-11-25 18:26:46,357 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:26:47,009 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:26:47,010 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 18:27:06,320 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:27:06,320 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:27:06,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1533678500] [2022-11-25 18:27:06,321 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1533678500] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 18:27:06,321 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 18:27:06,321 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-11-25 18:27:06,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38096537] [2022-11-25 18:27:06,322 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 18:27:06,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 18:27:06,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:27:06,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 18:27:06,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-25 18:27:06,325 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) [2022-11-25 18:27:06,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:27:06,513 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-11-25 18:27:06,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 18:27:06,514 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 [2022-11-25 18:27:06,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:27:06,515 INFO L225 Difference]: With dead ends: 16 [2022-11-25 18:27:06,515 INFO L226 Difference]: Without dead ends: 14 [2022-11-25 18:27:06,515 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-11-25 18:27:06,516 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 8 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 18:27:06,517 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 22 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 18:27:06,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-25 18:27:06,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2022-11-25 18:27:06,521 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) [2022-11-25 18:27:06,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-11-25 18:27:06,521 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2022-11-25 18:27:06,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:27:06,522 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-11-25 18:27:06,522 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) [2022-11-25 18:27:06,522 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-11-25 18:27:06,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-25 18:27:06,523 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:27:06,523 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-25 18:27:06,543 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f27ca-9d1f-48fa-8d9f-b78255b17487/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 18:27:06,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f27ca-9d1f-48fa-8d9f-b78255b17487/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 18:27:06,724 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:27:06,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:27:06,725 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2022-11-25 18:27:06,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:27:06,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [557350435] [2022-11-25 18:27:06,726 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 18:27:06,726 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 [2022-11-25 18:27:06,727 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f27ca-9d1f-48fa-8d9f-b78255b17487/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 18:27:06,728 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f27ca-9d1f-48fa-8d9f-b78255b17487/bin/uautomizer-ZsLfNo2U6R/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) [2022-11-25 18:27:06,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f27ca-9d1f-48fa-8d9f-b78255b17487/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 18:27:07,005 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 18:27:07,006 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 18:27:07,018 INFO L263 TraceCheckSpWp]: Trace formula consists of 470 conjuncts, 111 conjunts are in the unsatisfiable core [2022-11-25 18:27:07,024 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:27:07,782 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:27:07,782 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 18:27:56,869 WARN L233 SmtUtils]: Spent 6.01s on a formula simplification. DAG size of input: 553 DAG size of output: 246 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 18:27:57,979 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:27:57,980 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:27:57,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [557350435] [2022-11-25 18:27:57,984 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [557350435] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 18:27:57,985 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 18:27:57,985 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-11-25 18:27:57,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380270647] [2022-11-25 18:27:57,985 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 18:27:57,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 18:27:57,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:27:57,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 18:27:57,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-11-25 18:27:58,000 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) [2022-11-25 18:27:58,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:27:58,268 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2022-11-25 18:27:58,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 18:27:58,269 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 [2022-11-25 18:27:58,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:27:58,270 INFO L225 Difference]: With dead ends: 19 [2022-11-25 18:27:58,270 INFO L226 Difference]: Without dead ends: 17 [2022-11-25 18:27:58,270 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2022-11-25 18:27:58,271 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 25 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 18:27:58,272 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 21 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 18:27:58,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-25 18:27:58,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2022-11-25 18:27:58,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 states have internal predecessors, (15), 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) [2022-11-25 18:27:58,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-11-25 18:27:58,277 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 11 [2022-11-25 18:27:58,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:27:58,278 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-11-25 18:27:58,278 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) [2022-11-25 18:27:58,278 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-11-25 18:27:58,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-25 18:27:58,279 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:27:58,279 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1] [2022-11-25 18:27:58,292 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f27ca-9d1f-48fa-8d9f-b78255b17487/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 18:27:58,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f27ca-9d1f-48fa-8d9f-b78255b17487/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 18:27:58,487 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:27:58,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:27:58,488 INFO L85 PathProgramCache]: Analyzing trace with hash 1580781475, now seen corresponding path program 3 times [2022-11-25 18:27:58,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:27:58,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [434187076] [2022-11-25 18:27:58,490 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-25 18:27:58,490 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 [2022-11-25 18:27:58,491 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f27ca-9d1f-48fa-8d9f-b78255b17487/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 18:27:58,492 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f27ca-9d1f-48fa-8d9f-b78255b17487/bin/uautomizer-ZsLfNo2U6R/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) [2022-11-25 18:27:58,497 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f27ca-9d1f-48fa-8d9f-b78255b17487/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 18:27:58,739 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-25 18:27:58,739 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 18:27:58,749 INFO L263 TraceCheckSpWp]: Trace formula consists of 470 conjuncts, 179 conjunts are in the unsatisfiable core [2022-11-25 18:27:58,757 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:28:05,087 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 18:28:05,088 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 18:28:38,465 WARN L233 SmtUtils]: Spent 15.60s on a formula simplification. DAG size of input: 452 DAG size of output: 327 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 18:28:46,202 WARN L233 SmtUtils]: Spent 5.63s on a formula simplification. DAG size of input: 334 DAG size of output: 274 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 18:29:53,956 WARN L233 SmtUtils]: Spent 51.74s on a formula simplification. DAG size of input: 1047 DAG size of output: 453 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 18:30:01,563 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 10 refuted. 2 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 18:30:01,563 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:30:01,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [434187076] [2022-11-25 18:30:01,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [434187076] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 18:30:01,570 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 18:30:01,571 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2022-11-25 18:30:01,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034000728] [2022-11-25 18:30:01,572 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 18:30:01,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-25 18:30:01,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:30:01,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-25 18:30:01,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=143, Unknown=2, NotChecked=0, Total=182 [2022-11-25 18:30:01,576 INFO L87 Difference]: Start difference. First operand 15 states and 15 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) [2022-11-25 18:30:01,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:30:01,964 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2022-11-25 18:30:01,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:30:01,965 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 14 [2022-11-25 18:30:01,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:30:01,966 INFO L225 Difference]: With dead ends: 15 [2022-11-25 18:30:01,966 INFO L226 Difference]: Without dead ends: 0 [2022-11-25 18:30:01,966 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 82.2s TimeCoverageRelationStatistics Valid=63, Invalid=175, Unknown=2, NotChecked=0, Total=240 [2022-11-25 18:30:01,967 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 10 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 18:30:01,967 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 10 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 18:30:01,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-25 18:30:01,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-25 18:30:01,968 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) [2022-11-25 18:30:01,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-25 18:30:01,968 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2022-11-25 18:30:01,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:30:01,968 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-25 18:30:01,969 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) [2022-11-25 18:30:01,969 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-25 18:30:01,969 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-25 18:30:01,974 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-25 18:30:01,988 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f27ca-9d1f-48fa-8d9f-b78255b17487/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 18:30:02,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f27ca-9d1f-48fa-8d9f-b78255b17487/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 18:30:02,189 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-25 18:30:02,465 INFO L895 garLoopResultBuilder]: At program point L289(lines 22 290) the Hoare annotation is: false [2022-11-25 18:30:02,465 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-25 18:30:02,465 INFO L895 garLoopResultBuilder]: At program point L62-2(lines 62 288) the Hoare annotation is: (let ((.cse0 (= (_ bv1 8) |ULTIMATE.start_main_~mask_SORT_1~0#1|)) (.cse1 (= |ULTIMATE.start_main_~var_41~0#1| (_ bv5 8))) (.cse2 (= (_ bv6 8) |ULTIMATE.start_main_~var_38~0#1|)) (.cse3 (= (_ bv1 8) |ULTIMATE.start_main_~var_31~0#1|)) (.cse4 (= (_ bv4 8) |ULTIMATE.start_main_~var_35~0#1|)) (.cse5 (= (_ bv2 8) |ULTIMATE.start_main_~var_28~0#1|)) (.cse6 (= |ULTIMATE.start_main_~var_13~0#1| (_ bv0 8))) (.cse7 (= (_ bv1 8) |ULTIMATE.start_main_~var_21~0#1|)) (.cse8 (= |ULTIMATE.start_main_~var_45~0#1| (_ bv3 8))) (.cse9 (= |ULTIMATE.start_main_~mask_SORT_47~0#1| (_ bv3 8))) (.cse10 (= |ULTIMATE.start_main_~var_4~0#1| (_ bv0 8))) (.cse11 (= (_ bv7 8) |ULTIMATE.start_main_~mask_SORT_12~0#1|)) (.cse12 (= |ULTIMATE.start_main_~var_9~0#1| (_ bv1 32)))) (or (and .cse0 .cse1 (= |ULTIMATE.start_main_~state_5~0#1| (_ bv0 8)) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 (= |ULTIMATE.start_main_~var_13~0#1| |ULTIMATE.start_main_~state_14~0#1|)) (let ((.cse13 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_12~0#1|))) (and .cse0 (= |ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32)) (or (not (= ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |ULTIMATE.start_main_~state_5~0#1|) ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_1~0#1|)))) |ULTIMATE.start_main_~var_9~0#1|)) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse13 ((_ zero_extend 24) |ULTIMATE.start_main_~state_14~0#1|)))) |ULTIMATE.start_main_~var_9~0#1|)) .cse1 .cse2 .cse3 .cse4 (exists ((|ULTIMATE.start_main_~var_90_arg_1~0#1| (_ BitVec 8))) (= ((_ extract 7 0) (bvand .cse13 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |ULTIMATE.start_main_~var_90_arg_1~0#1|))))) |ULTIMATE.start_main_~state_14~0#1|)) .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12)))) [2022-11-25 18:30:02,466 INFO L899 garLoopResultBuilder]: For program point L62-3(lines 62 288) no Hoare annotation was computed. [2022-11-25 18:30:02,466 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-25 18:30:02,466 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-25 18:30:02,466 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-25 18:30:02,466 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 20) no Hoare annotation was computed. [2022-11-25 18:30:02,467 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2022-11-25 18:30:02,467 INFO L899 garLoopResultBuilder]: For program point L20-1(line 20) no Hoare annotation was computed. [2022-11-25 18:30:02,467 INFO L899 garLoopResultBuilder]: For program point L20-3(line 20) no Hoare annotation was computed. [2022-11-25 18:30:02,470 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1] [2022-11-25 18:30:02,473 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 18:30:02,481 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_90_arg_1~0#1,QUANTIFIED] [2022-11-25 18:30:02,488 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_90_arg_1~0#1,QUANTIFIED] [2022-11-25 18:30:02,489 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 06:30:02 BoogieIcfgContainer [2022-11-25 18:30:02,490 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 18:30:02,490 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 18:30:02,490 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 18:30:02,491 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 18:30:02,491 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:26:45" (3/4) ... [2022-11-25 18:30:02,494 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-25 18:30:02,506 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-11-25 18:30:02,506 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-25 18:30:02,507 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-25 18:30:02,537 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((1bv8 == mask_SORT_1 && var_41 == 5bv8) && state_5 == 0bv8) && 6bv8 == var_38) && 1bv8 == var_31) && 4bv8 == var_35) && 2bv8 == var_28) && var_13 == 0bv8) && 1bv8 == var_21) && var_45 == 3bv8) && mask_SORT_47 == 3bv8) && var_4 == 0bv8) && 7bv8 == mask_SORT_12) && var_9 == 1bv32) && var_13 == state_14) || (((((((((((((((1bv8 == mask_SORT_1 && cond == 1bv32) && (!(~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(state_5), ~zero_extendFrom8To32(mask_SORT_1))[7:0]) == var_9) || ~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(mask_SORT_12), ~zero_extendFrom8To32(state_14))[7:0]) == var_9)) && var_41 == 5bv8) && 6bv8 == var_38) && 1bv8 == var_31) && 4bv8 == var_35) && (\exists ULTIMATE.start_main_~var_90_arg_1~0#1 : bv8 :: ~bvand32(~zero_extendFrom8To32(mask_SORT_12), ~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_90_arg_1~0#1)[7:0]))[7:0] == state_14)) && 2bv8 == var_28) && var_13 == 0bv8) && 1bv8 == var_21) && var_45 == 3bv8) && mask_SORT_47 == 3bv8) && var_4 == 0bv8) && 7bv8 == mask_SORT_12) && var_9 == 1bv32) [2022-11-25 18:30:02,595 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f27ca-9d1f-48fa-8d9f-b78255b17487/bin/uautomizer-ZsLfNo2U6R/witness.graphml [2022-11-25 18:30:02,596 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 18:30:02,597 INFO L158 Benchmark]: Toolchain (without parser) took 198722.39ms. Allocated memory was 75.5MB in the beginning and 383.8MB in the end (delta: 308.3MB). Free memory was 51.3MB in the beginning and 322.8MB in the end (delta: -271.5MB). Peak memory consumption was 41.0MB. Max. memory is 16.1GB. [2022-11-25 18:30:02,597 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 75.5MB. Free memory is still 52.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 18:30:02,597 INFO L158 Benchmark]: CACSL2BoogieTranslator took 417.16ms. Allocated memory is still 75.5MB. Free memory was 51.1MB in the beginning and 34.7MB in the end (delta: 16.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-25 18:30:02,597 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.81ms. Allocated memory is still 75.5MB. Free memory was 34.7MB in the beginning and 53.0MB in the end (delta: -18.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 18:30:02,598 INFO L158 Benchmark]: Boogie Preprocessor took 34.19ms. Allocated memory is still 75.5MB. Free memory was 53.0MB in the beginning and 50.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 18:30:02,598 INFO L158 Benchmark]: RCFGBuilder took 746.78ms. Allocated memory was 75.5MB in the beginning and 100.7MB in the end (delta: 25.2MB). Free memory was 50.9MB in the beginning and 67.9MB in the end (delta: -17.0MB). Peak memory consumption was 21.2MB. Max. memory is 16.1GB. [2022-11-25 18:30:02,599 INFO L158 Benchmark]: TraceAbstraction took 197349.94ms. Allocated memory was 100.7MB in the beginning and 383.8MB in the end (delta: 283.1MB). Free memory was 67.4MB in the beginning and 328.0MB in the end (delta: -260.7MB). Peak memory consumption was 22.4MB. Max. memory is 16.1GB. [2022-11-25 18:30:02,599 INFO L158 Benchmark]: Witness Printer took 105.54ms. Allocated memory is still 383.8MB. Free memory was 328.0MB in the beginning and 322.8MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-25 18:30:02,602 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 75.5MB. Free memory is still 52.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 417.16ms. Allocated memory is still 75.5MB. Free memory was 51.1MB in the beginning and 34.7MB in the end (delta: 16.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.81ms. Allocated memory is still 75.5MB. Free memory was 34.7MB in the beginning and 53.0MB in the end (delta: -18.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.19ms. Allocated memory is still 75.5MB. Free memory was 53.0MB in the beginning and 50.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 746.78ms. Allocated memory was 75.5MB in the beginning and 100.7MB in the end (delta: 25.2MB). Free memory was 50.9MB in the beginning and 67.9MB in the end (delta: -17.0MB). Peak memory consumption was 21.2MB. Max. memory is 16.1GB. * TraceAbstraction took 197349.94ms. Allocated memory was 100.7MB in the beginning and 383.8MB in the end (delta: 283.1MB). Free memory was 67.4MB in the beginning and 328.0MB in the end (delta: -260.7MB). Peak memory consumption was 22.4MB. Max. memory is 16.1GB. * Witness Printer took 105.54ms. Allocated memory is still 383.8MB. Free memory was 328.0MB in the beginning and 322.8MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. 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_90_arg_1~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_90_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: 197.3s, OverallIterations: 4, TraceHistogramMax: 4, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 47 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 47 mSDsluCounter, 66 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 49 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 65 IncrementalHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 17 mSDtfsCounter, 65 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 74 GetRequests, 34 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 93.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=3, InterpolantAutomatonStates: 25, 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, 6 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 6 NumberOfFragments, 122 HoareAnnotationTreeSize, 2 FomulaSimplifications, 38 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 205 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 194.0s InterpolantComputationTime, 38 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 64 ConstructedInterpolants, 25 QuantifiedInterpolants, 41229 SizeOfPredicates, 404 NumberOfNonLiveVariables, 1259 ConjunctsInSsa, 386 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 8/48 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: 22]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 62]: Loop Invariant [2022-11-25 18:30:02,617 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_90_arg_1~0#1,QUANTIFIED] [2022-11-25 18:30:02,618 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_90_arg_1~0#1,QUANTIFIED] Derived loop invariant: ((((((((((((((1bv8 == mask_SORT_1 && var_41 == 5bv8) && state_5 == 0bv8) && 6bv8 == var_38) && 1bv8 == var_31) && 4bv8 == var_35) && 2bv8 == var_28) && var_13 == 0bv8) && 1bv8 == var_21) && var_45 == 3bv8) && mask_SORT_47 == 3bv8) && var_4 == 0bv8) && 7bv8 == mask_SORT_12) && var_9 == 1bv32) && var_13 == state_14) || (((((((((((((((1bv8 == mask_SORT_1 && cond == 1bv32) && (!(~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(state_5), ~zero_extendFrom8To32(mask_SORT_1))[7:0]) == var_9) || ~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(mask_SORT_12), ~zero_extendFrom8To32(state_14))[7:0]) == var_9)) && var_41 == 5bv8) && 6bv8 == var_38) && 1bv8 == var_31) && 4bv8 == var_35) && (\exists ULTIMATE.start_main_~var_90_arg_1~0#1 : bv8 :: ~bvand32(~zero_extendFrom8To32(mask_SORT_12), ~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_90_arg_1~0#1)[7:0]))[7:0] == state_14)) && 2bv8 == var_28) && var_13 == 0bv8) && 1bv8 == var_21) && var_45 == 3bv8) && mask_SORT_47 == 3bv8) && var_4 == 0bv8) && 7bv8 == mask_SORT_12) && var_9 == 1bv32) RESULT: Ultimate proved your program to be correct! [2022-11-25 18:30:02,709 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f27ca-9d1f-48fa-8d9f-b78255b17487/bin/uautomizer-ZsLfNo2U6R/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