./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product28.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173b526e-1c26-4e4b-ab15-adbd5a2c214a/bin/utaipan-9zjyvhn0QE/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173b526e-1c26-4e4b-ab15-adbd5a2c214a/bin/utaipan-9zjyvhn0QE/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173b526e-1c26-4e4b-ab15-adbd5a2c214a/bin/utaipan-9zjyvhn0QE/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173b526e-1c26-4e4b-ab15-adbd5a2c214a/bin/utaipan-9zjyvhn0QE/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product28.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173b526e-1c26-4e4b-ab15-adbd5a2c214a/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173b526e-1c26-4e4b-ab15-adbd5a2c214a/bin/utaipan-9zjyvhn0QE --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fad1f46ef1d66409ef51b118a06472b77e31d844250c32d0f4ef55111b850abc ............................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173b526e-1c26-4e4b-ab15-adbd5a2c214a/bin/utaipan-9zjyvhn0QE/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173b526e-1c26-4e4b-ab15-adbd5a2c214a/bin/utaipan-9zjyvhn0QE/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173b526e-1c26-4e4b-ab15-adbd5a2c214a/bin/utaipan-9zjyvhn0QE/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173b526e-1c26-4e4b-ab15-adbd5a2c214a/bin/utaipan-9zjyvhn0QE/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product28.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173b526e-1c26-4e4b-ab15-adbd5a2c214a/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173b526e-1c26-4e4b-ab15-adbd5a2c214a/bin/utaipan-9zjyvhn0QE --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fad1f46ef1d66409ef51b118a06472b77e31d844250c32d0f4ef55111b850abc .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-24 09:47:22,155 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-24 09:47:22,158 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-24 09:47:22,194 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-24 09:47:22,195 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-24 09:47:22,196 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-24 09:47:22,198 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-24 09:47:22,200 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-24 09:47:22,202 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-24 09:47:22,203 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-24 09:47:22,204 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-24 09:47:22,206 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-24 09:47:22,206 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-24 09:47:22,207 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-24 09:47:22,209 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-24 09:47:22,210 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-24 09:47:22,212 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-24 09:47:22,213 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-24 09:47:22,215 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-24 09:47:22,217 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-24 09:47:22,219 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-24 09:47:22,220 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-24 09:47:22,222 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-24 09:47:22,223 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-24 09:47:22,226 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-24 09:47:22,227 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-24 09:47:22,227 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-24 09:47:22,228 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-24 09:47:22,229 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-24 09:47:22,230 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-24 09:47:22,231 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-24 09:47:22,232 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-24 09:47:22,233 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-24 09:47:22,233 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-24 09:47:22,244 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-24 09:47:22,244 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-24 09:47:22,245 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-24 09:47:22,246 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-24 09:47:22,246 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-24 09:47:22,247 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-24 09:47:22,248 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-24 09:47:22,249 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173b526e-1c26-4e4b-ab15-adbd5a2c214a/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-24 09:47:22,296 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-24 09:47:22,296 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-24 09:47:22,297 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-24 09:47:22,297 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-24 09:47:22,298 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-24 09:47:22,298 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-24 09:47:22,298 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-24 09:47:22,298 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-24 09:47:22,298 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-24 09:47:22,299 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-24 09:47:22,300 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-24 09:47:22,300 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-24 09:47:22,300 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-24 09:47:22,300 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-24 09:47:22,300 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-24 09:47:22,301 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-24 09:47:22,301 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-24 09:47:22,301 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-24 09:47:22,302 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-24 09:47:22,302 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-24 09:47:22,302 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-24 09:47:22,302 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-24 09:47:22,302 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-24 09:47:22,303 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-24 09:47:22,303 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-24 09:47:22,303 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-24 09:47:22,303 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-24 09:47:22,303 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-24 09:47:22,304 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-24 09:47:22,305 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-24 09:47:22,305 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 09:47:22,306 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-24 09:47:22,306 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-24 09:47:22,306 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-24 09:47:22,306 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-24 09:47:22,306 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-24 09:47:22,307 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-24 09:47:22,307 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-24 09:47:22,307 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-24 09:47:22,307 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_173b526e-1c26-4e4b-ab15-adbd5a2c214a/bin/utaipan-9zjyvhn0QE/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173b526e-1c26-4e4b-ab15-adbd5a2c214a/bin/utaipan-9zjyvhn0QE Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fad1f46ef1d66409ef51b118a06472b77e31d844250c32d0f4ef55111b850abc [2021-10-24 09:47:22,616 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-24 09:47:22,651 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-24 09:47:22,655 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-24 09:47:22,656 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-24 09:47:22,657 INFO L275 PluginConnector]: CDTParser initialized [2021-10-24 09:47:22,658 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173b526e-1c26-4e4b-ab15-adbd5a2c214a/bin/utaipan-9zjyvhn0QE/../../sv-benchmarks/c/product-lines/minepump_spec3_product28.cil.c [2021-10-24 09:47:22,732 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173b526e-1c26-4e4b-ab15-adbd5a2c214a/bin/utaipan-9zjyvhn0QE/data/afb9baf7b/9dfbeac6d2b94ae9b52b86a9933cb5de/FLAG1f78c02a1 [2021-10-24 09:47:23,325 INFO L306 CDTParser]: Found 1 translation units. [2021-10-24 09:47:23,339 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173b526e-1c26-4e4b-ab15-adbd5a2c214a/sv-benchmarks/c/product-lines/minepump_spec3_product28.cil.c [2021-10-24 09:47:23,358 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173b526e-1c26-4e4b-ab15-adbd5a2c214a/bin/utaipan-9zjyvhn0QE/data/afb9baf7b/9dfbeac6d2b94ae9b52b86a9933cb5de/FLAG1f78c02a1 [2021-10-24 09:47:23,608 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173b526e-1c26-4e4b-ab15-adbd5a2c214a/bin/utaipan-9zjyvhn0QE/data/afb9baf7b/9dfbeac6d2b94ae9b52b86a9933cb5de [2021-10-24 09:47:23,613 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-24 09:47:23,615 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-24 09:47:23,617 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-24 09:47:23,618 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-24 09:47:23,625 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-24 09:47:23,626 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:47:23" (1/1) ... [2021-10-24 09:47:23,627 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fb87031 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:47:23, skipping insertion in model container [2021-10-24 09:47:23,628 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:47:23" (1/1) ... [2021-10-24 09:47:23,635 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-24 09:47:23,687 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 09:47:23,917 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173b526e-1c26-4e4b-ab15-adbd5a2c214a/sv-benchmarks/c/product-lines/minepump_spec3_product28.cil.c[8048,8061] [2021-10-24 09:47:24,002 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 09:47:24,028 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-10-24 09:47:24,030 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2ff80f94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:47:24, skipping insertion in model container [2021-10-24 09:47:24,031 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-24 09:47:24,031 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-24 09:47:24,033 INFO L168 Benchmark]: Toolchain (without parser) took 416.86 ms. Allocated memory is still 119.5 MB. Free memory was 83.7 MB in the beginning and 91.3 MB in the end (delta: -7.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-24 09:47:24,035 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 119.5 MB. Free memory was 91.2 MB in the beginning and 91.2 MB in the end (delta: 27.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 09:47:24,037 INFO L168 Benchmark]: CACSL2BoogieTranslator took 413.57 ms. Allocated memory is still 119.5 MB. Free memory was 83.5 MB in the beginning and 91.3 MB in the end (delta: -7.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-24 09:47:24,039 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 119.5 MB. Free memory was 91.2 MB in the beginning and 91.2 MB in the end (delta: 27.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 413.57 ms. Allocated memory is still 119.5 MB. Free memory was 83.5 MB in the beginning and 91.3 MB in the end (delta: -7.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 622]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-e943c26 [2021-10-24 09:47:26,238 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-24 09:47:26,242 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-24 09:47:26,298 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-24 09:47:26,299 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-24 09:47:26,303 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-24 09:47:26,306 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-24 09:47:26,311 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-24 09:47:26,314 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-24 09:47:26,322 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-24 09:47:26,323 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-24 09:47:26,325 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-24 09:47:26,326 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-24 09:47:26,328 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-24 09:47:26,330 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-24 09:47:26,335 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-24 09:47:26,337 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-24 09:47:26,338 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-24 09:47:26,349 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-24 09:47:26,359 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-24 09:47:26,361 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-24 09:47:26,363 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-24 09:47:26,364 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-24 09:47:26,365 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-24 09:47:26,368 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-24 09:47:26,369 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-24 09:47:26,369 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-24 09:47:26,370 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-24 09:47:26,371 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-24 09:47:26,372 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-24 09:47:26,372 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-24 09:47:26,373 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-24 09:47:26,374 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-24 09:47:26,375 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-24 09:47:26,376 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-24 09:47:26,377 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-24 09:47:26,377 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-24 09:47:26,378 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-24 09:47:26,378 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-24 09:47:26,379 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-24 09:47:26,380 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-24 09:47:26,381 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173b526e-1c26-4e4b-ab15-adbd5a2c214a/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-24 09:47:26,406 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-24 09:47:26,406 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-24 09:47:26,407 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-24 09:47:26,408 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-24 09:47:26,408 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-24 09:47:26,408 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-24 09:47:26,408 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-24 09:47:26,408 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-24 09:47:26,409 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-24 09:47:26,409 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-24 09:47:26,410 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-24 09:47:26,410 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-24 09:47:26,410 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-24 09:47:26,410 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-24 09:47:26,411 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-24 09:47:26,411 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-24 09:47:26,411 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-24 09:47:26,411 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-24 09:47:26,411 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-24 09:47:26,412 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-24 09:47:26,412 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-24 09:47:26,412 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-24 09:47:26,412 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-24 09:47:26,413 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-24 09:47:26,413 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-24 09:47:26,413 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-24 09:47:26,413 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 09:47:26,414 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-24 09:47:26,414 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-24 09:47:26,414 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-24 09:47:26,414 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-24 09:47:26,414 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-24 09:47:26,415 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-24 09:47:26,415 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-24 09:47:26,415 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-24 09:47:26,415 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173b526e-1c26-4e4b-ab15-adbd5a2c214a/bin/utaipan-9zjyvhn0QE/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173b526e-1c26-4e4b-ab15-adbd5a2c214a/bin/utaipan-9zjyvhn0QE Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fad1f46ef1d66409ef51b118a06472b77e31d844250c32d0f4ef55111b850abc [2021-10-24 09:47:26,767 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-24 09:47:26,799 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-24 09:47:26,804 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-24 09:47:26,805 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-24 09:47:26,805 INFO L275 PluginConnector]: CDTParser initialized [2021-10-24 09:47:26,806 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173b526e-1c26-4e4b-ab15-adbd5a2c214a/bin/utaipan-9zjyvhn0QE/../../sv-benchmarks/c/product-lines/minepump_spec3_product28.cil.c [2021-10-24 09:47:26,876 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173b526e-1c26-4e4b-ab15-adbd5a2c214a/bin/utaipan-9zjyvhn0QE/data/797abd219/2f289ef6a0b4453caa2f06bd60736e7f/FLAGc16d2279e [2021-10-24 09:47:27,514 INFO L306 CDTParser]: Found 1 translation units. [2021-10-24 09:47:27,515 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173b526e-1c26-4e4b-ab15-adbd5a2c214a/sv-benchmarks/c/product-lines/minepump_spec3_product28.cil.c [2021-10-24 09:47:27,525 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173b526e-1c26-4e4b-ab15-adbd5a2c214a/bin/utaipan-9zjyvhn0QE/data/797abd219/2f289ef6a0b4453caa2f06bd60736e7f/FLAGc16d2279e [2021-10-24 09:47:27,881 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173b526e-1c26-4e4b-ab15-adbd5a2c214a/bin/utaipan-9zjyvhn0QE/data/797abd219/2f289ef6a0b4453caa2f06bd60736e7f [2021-10-24 09:47:27,884 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-24 09:47:27,886 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-24 09:47:27,889 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-24 09:47:27,889 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-24 09:47:27,905 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-24 09:47:27,906 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:47:27" (1/1) ... [2021-10-24 09:47:27,907 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@327d42b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:47:27, skipping insertion in model container [2021-10-24 09:47:27,907 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:47:27" (1/1) ... [2021-10-24 09:47:27,915 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-24 09:47:27,976 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 09:47:28,208 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173b526e-1c26-4e4b-ab15-adbd5a2c214a/sv-benchmarks/c/product-lines/minepump_spec3_product28.cil.c[8048,8061] [2021-10-24 09:47:28,260 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 09:47:28,274 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-24 09:47:28,291 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 09:47:28,360 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173b526e-1c26-4e4b-ab15-adbd5a2c214a/sv-benchmarks/c/product-lines/minepump_spec3_product28.cil.c[8048,8061] [2021-10-24 09:47:28,398 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 09:47:28,409 INFO L203 MainTranslator]: Completed pre-run [2021-10-24 09:47:28,469 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173b526e-1c26-4e4b-ab15-adbd5a2c214a/sv-benchmarks/c/product-lines/minepump_spec3_product28.cil.c[8048,8061] [2021-10-24 09:47:28,490 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 09:47:28,515 INFO L208 MainTranslator]: Completed translation [2021-10-24 09:47:28,516 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:47:28 WrapperNode [2021-10-24 09:47:28,516 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-24 09:47:28,517 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-24 09:47:28,518 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-24 09:47:28,518 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-24 09:47:28,525 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:47:28" (1/1) ... [2021-10-24 09:47:28,555 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:47:28" (1/1) ... [2021-10-24 09:47:28,608 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-24 09:47:28,608 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-24 09:47:28,609 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-24 09:47:28,609 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-24 09:47:28,626 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:47:28" (1/1) ... [2021-10-24 09:47:28,628 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:47:28" (1/1) ... [2021-10-24 09:47:28,637 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:47:28" (1/1) ... [2021-10-24 09:47:28,642 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:47:28" (1/1) ... [2021-10-24 09:47:28,655 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:47:28" (1/1) ... [2021-10-24 09:47:28,662 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:47:28" (1/1) ... [2021-10-24 09:47:28,664 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:47:28" (1/1) ... [2021-10-24 09:47:28,668 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-24 09:47:28,669 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-24 09:47:28,670 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-24 09:47:28,670 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-24 09:47:28,671 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:47:28" (1/1) ... [2021-10-24 09:47:28,677 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 09:47:28,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173b526e-1c26-4e4b-ab15-adbd5a2c214a/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 09:47:28,700 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173b526e-1c26-4e4b-ab15-adbd5a2c214a/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-24 09:47:28,713 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173b526e-1c26-4e4b-ab15-adbd5a2c214a/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-24 09:47:28,741 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-24 09:47:28,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-24 09:47:28,741 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-24 09:47:28,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-24 09:47:30,922 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-24 09:47:30,923 INFO L299 CfgBuilder]: Removed 108 assume(true) statements. [2021-10-24 09:47:30,925 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:47:30 BoogieIcfgContainer [2021-10-24 09:47:30,925 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-24 09:47:30,927 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-24 09:47:30,927 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-24 09:47:30,930 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-24 09:47:30,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 09:47:27" (1/3) ... [2021-10-24 09:47:30,935 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52893f05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:47:30, skipping insertion in model container [2021-10-24 09:47:30,935 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:47:28" (2/3) ... [2021-10-24 09:47:30,936 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52893f05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:47:30, skipping insertion in model container [2021-10-24 09:47:30,936 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:47:30" (3/3) ... [2021-10-24 09:47:30,937 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product28.cil.c [2021-10-24 09:47:30,942 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-24 09:47:30,943 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-10-24 09:47:30,989 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-24 09:47:31,000 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-24 09:47:31,000 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-24 09:47:31,024 INFO L276 IsEmpty]: Start isEmpty. Operand has 83 states, 79 states have (on average 1.5569620253164558) internal successors, (123), 82 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:47:31,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-24 09:47:31,040 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:47:31,040 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 09:47:31,041 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 09:47:31,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:47:31,046 INFO L82 PathProgramCache]: Analyzing trace with hash -93315333, now seen corresponding path program 1 times [2021-10-24 09:47:31,064 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 09:47:31,065 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [305651152] [2021-10-24 09:47:31,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:47:31,065 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 09:47:31,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173b526e-1c26-4e4b-ab15-adbd5a2c214a/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 09:47:31,068 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173b526e-1c26-4e4b-ab15-adbd5a2c214a/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 09:47:31,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173b526e-1c26-4e4b-ab15-adbd5a2c214a/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-24 09:47:31,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:47:31,291 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-24 09:47:31,295 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 09:47:31,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:47:31,368 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 09:47:31,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:47:31,419 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 09:47:31,419 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [305651152] [2021-10-24 09:47:31,420 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [305651152] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 09:47:31,420 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:47:31,420 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-24 09:47:31,422 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402510103] [2021-10-24 09:47:31,426 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-24 09:47:31,427 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 09:47:31,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-24 09:47:31,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-24 09:47:31,442 INFO L87 Difference]: Start difference. First operand has 83 states, 79 states have (on average 1.5569620253164558) internal successors, (123), 82 states have internal predecessors, (123), 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 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:47:31,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:47:31,466 INFO L93 Difference]: Finished difference Result 160 states and 239 transitions. [2021-10-24 09:47:31,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 09:47:31,467 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-10-24 09:47:31,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:47:31,476 INFO L225 Difference]: With dead ends: 160 [2021-10-24 09:47:31,477 INFO L226 Difference]: Without dead ends: 79 [2021-10-24 09:47:31,479 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-24 09:47:31,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2021-10-24 09:47:31,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2021-10-24 09:47:31,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 76 states have (on average 1.4605263157894737) internal successors, (111), 78 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:47:31,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 111 transitions. [2021-10-24 09:47:31,522 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 111 transitions. Word has length 18 [2021-10-24 09:47:31,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:47:31,522 INFO L470 AbstractCegarLoop]: Abstraction has 79 states and 111 transitions. [2021-10-24 09:47:31,523 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:47:31,523 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 111 transitions. [2021-10-24 09:47:31,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-24 09:47:31,524 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:47:31,525 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 09:47:31,537 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173b526e-1c26-4e4b-ab15-adbd5a2c214a/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-24 09:47:31,739 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173b526e-1c26-4e4b-ab15-adbd5a2c214a/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 09:47:31,740 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 09:47:31,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:47:31,741 INFO L82 PathProgramCache]: Analyzing trace with hash -1004346086, now seen corresponding path program 1 times [2021-10-24 09:47:31,741 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 09:47:31,742 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1896322209] [2021-10-24 09:47:31,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:47:31,742 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 09:47:31,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173b526e-1c26-4e4b-ab15-adbd5a2c214a/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 09:47:31,743 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173b526e-1c26-4e4b-ab15-adbd5a2c214a/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 09:47:31,753 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173b526e-1c26-4e4b-ab15-adbd5a2c214a/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-24 09:47:31,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:47:31,965 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 09:47:31,967 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 09:47:32,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:47:32,034 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 09:47:32,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:47:32,085 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 09:47:32,085 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1896322209] [2021-10-24 09:47:32,086 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1896322209] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 09:47:32,086 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:47:32,086 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-24 09:47:32,086 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761631365] [2021-10-24 09:47:32,088 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 09:47:32,088 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 09:47:32,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 09:47:32,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 09:47:32,089 INFO L87 Difference]: Start difference. First operand 79 states and 111 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:47:32,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:47:32,102 INFO L93 Difference]: Finished difference Result 79 states and 111 transitions. [2021-10-24 09:47:32,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 09:47:32,102 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 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 19 [2021-10-24 09:47:32,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:47:32,103 INFO L225 Difference]: With dead ends: 79 [2021-10-24 09:47:32,104 INFO L226 Difference]: Without dead ends: 37 [2021-10-24 09:47:32,104 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.9ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 09:47:32,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-10-24 09:47:32,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2021-10-24 09:47:32,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 36 states have (on average 1.4444444444444444) internal successors, (52), 36 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:47:32,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 52 transitions. [2021-10-24 09:47:32,110 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 52 transitions. Word has length 19 [2021-10-24 09:47:32,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:47:32,110 INFO L470 AbstractCegarLoop]: Abstraction has 37 states and 52 transitions. [2021-10-24 09:47:32,111 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:47:32,111 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 52 transitions. [2021-10-24 09:47:32,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-24 09:47:32,112 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:47:32,112 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 09:47:32,126 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173b526e-1c26-4e4b-ab15-adbd5a2c214a/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-24 09:47:32,323 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173b526e-1c26-4e4b-ab15-adbd5a2c214a/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 09:47:32,324 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 09:47:32,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:47:32,325 INFO L82 PathProgramCache]: Analyzing trace with hash 2100491951, now seen corresponding path program 1 times [2021-10-24 09:47:32,325 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 09:47:32,327 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [341997615] [2021-10-24 09:47:32,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:47:32,328 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 09:47:32,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173b526e-1c26-4e4b-ab15-adbd5a2c214a/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 09:47:32,329 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173b526e-1c26-4e4b-ab15-adbd5a2c214a/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 09:47:32,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173b526e-1c26-4e4b-ab15-adbd5a2c214a/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-24 09:47:32,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:47:32,544 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 09:47:32,546 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 09:47:32,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:47:32,620 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 09:47:32,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:47:32,699 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 09:47:32,700 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [341997615] [2021-10-24 09:47:32,700 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [341997615] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 09:47:32,700 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:47:32,700 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-24 09:47:32,700 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372198718] [2021-10-24 09:47:32,701 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 09:47:32,702 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 09:47:32,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 09:47:32,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 09:47:32,706 INFO L87 Difference]: Start difference. First operand 37 states and 52 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:47:32,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:47:32,785 INFO L93 Difference]: Finished difference Result 124 states and 181 transitions. [2021-10-24 09:47:32,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 09:47:32,786 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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 24 [2021-10-24 09:47:32,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:47:32,788 INFO L225 Difference]: With dead ends: 124 [2021-10-24 09:47:32,788 INFO L226 Difference]: Without dead ends: 93 [2021-10-24 09:47:32,789 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.1ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 09:47:32,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2021-10-24 09:47:32,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 58. [2021-10-24 09:47:32,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 57 states have (on average 1.4736842105263157) internal successors, (84), 57 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:47:32,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 84 transitions. [2021-10-24 09:47:32,804 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 84 transitions. Word has length 24 [2021-10-24 09:47:32,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:47:32,804 INFO L470 AbstractCegarLoop]: Abstraction has 58 states and 84 transitions. [2021-10-24 09:47:32,805 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:47:32,806 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 84 transitions. [2021-10-24 09:47:32,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-24 09:47:32,808 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:47:32,808 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 09:47:32,823 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173b526e-1c26-4e4b-ab15-adbd5a2c214a/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-24 09:47:33,023 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173b526e-1c26-4e4b-ab15-adbd5a2c214a/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 09:47:33,023 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 09:47:33,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:47:33,024 INFO L82 PathProgramCache]: Analyzing trace with hash -1826320204, now seen corresponding path program 1 times [2021-10-24 09:47:33,024 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 09:47:33,025 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2099671659] [2021-10-24 09:47:33,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:47:33,025 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 09:47:33,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173b526e-1c26-4e4b-ab15-adbd5a2c214a/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 09:47:33,026 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173b526e-1c26-4e4b-ab15-adbd5a2c214a/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 09:47:33,029 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173b526e-1c26-4e4b-ab15-adbd5a2c214a/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-24 09:47:33,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:47:33,246 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-24 09:47:33,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 09:47:33,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:47:33,362 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 09:47:33,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:47:33,475 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 09:47:33,475 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2099671659] [2021-10-24 09:47:33,475 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2099671659] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 09:47:33,475 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:47:33,476 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-10-24 09:47:33,476 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106723113] [2021-10-24 09:47:33,476 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-24 09:47:33,476 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 09:47:33,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-24 09:47:33,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-24 09:47:33,477 INFO L87 Difference]: Start difference. First operand 58 states and 84 transitions. Second operand has 8 states, 8 states have (on average 5.875) internal successors, (47), 7 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:47:33,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:47:33,810 INFO L93 Difference]: Finished difference Result 602 states and 924 transitions. [2021-10-24 09:47:33,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-24 09:47:33,811 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 7 states have internal predecessors, (47), 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 25 [2021-10-24 09:47:33,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:47:33,819 INFO L225 Difference]: With dead ends: 602 [2021-10-24 09:47:33,819 INFO L226 Difference]: Without dead ends: 550 [2021-10-24 09:47:33,821 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 125.2ms TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2021-10-24 09:47:33,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2021-10-24 09:47:33,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 148. [2021-10-24 09:47:33,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 147 states have (on average 1.4557823129251701) internal successors, (214), 147 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:47:33,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 214 transitions. [2021-10-24 09:47:33,876 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 214 transitions. Word has length 25 [2021-10-24 09:47:33,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:47:33,877 INFO L470 AbstractCegarLoop]: Abstraction has 148 states and 214 transitions. [2021-10-24 09:47:33,877 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 7 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:47:33,877 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 214 transitions. [2021-10-24 09:47:33,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-24 09:47:33,883 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:47:33,883 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 09:47:33,896 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173b526e-1c26-4e4b-ab15-adbd5a2c214a/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-24 09:47:34,095 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173b526e-1c26-4e4b-ab15-adbd5a2c214a/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 09:47:34,096 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 09:47:34,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:47:34,096 INFO L82 PathProgramCache]: Analyzing trace with hash 509338102, now seen corresponding path program 1 times [2021-10-24 09:47:34,096 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 09:47:34,097 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2132623975] [2021-10-24 09:47:34,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:47:34,097 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 09:47:34,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173b526e-1c26-4e4b-ab15-adbd5a2c214a/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 09:47:34,098 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173b526e-1c26-4e4b-ab15-adbd5a2c214a/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 09:47:34,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173b526e-1c26-4e4b-ab15-adbd5a2c214a/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-24 09:47:35,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-24 09:47:35,259 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-24 09:47:36,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-24 09:47:36,581 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-10-24 09:47:36,581 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-24 09:47:36,582 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-24 09:47:36,584 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-24 09:47:36,584 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-24 09:47:36,627 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173b526e-1c26-4e4b-ab15-adbd5a2c214a/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-24 09:47:36,785 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173b526e-1c26-4e4b-ab15-adbd5a2c214a/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 09:47:36,791 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-24 09:47:36,921 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 09:47:36 BoogieIcfgContainer [2021-10-24 09:47:36,921 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-24 09:47:36,922 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-24 09:47:36,922 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-24 09:47:36,922 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-24 09:47:36,923 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:47:30" (3/4) ... [2021-10-24 09:47:36,925 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-24 09:47:36,996 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173b526e-1c26-4e4b-ab15-adbd5a2c214a/bin/utaipan-9zjyvhn0QE/witness.graphml [2021-10-24 09:47:37,004 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-24 09:47:37,005 INFO L168 Benchmark]: Toolchain (without parser) took 9118.91 ms. Allocated memory was 65.0 MB in the beginning and 88.1 MB in the end (delta: 23.1 MB). Free memory was 43.0 MB in the beginning and 49.2 MB in the end (delta: -6.1 MB). Peak memory consumption was 15.3 MB. Max. memory is 16.1 GB. [2021-10-24 09:47:37,006 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 65.0 MB. Free memory is still 44.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 09:47:37,006 INFO L168 Benchmark]: CACSL2BoogieTranslator took 627.59 ms. Allocated memory is still 65.0 MB. Free memory was 42.8 MB in the beginning and 32.0 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-24 09:47:37,007 INFO L168 Benchmark]: Boogie Procedure Inliner took 90.40 ms. Allocated memory is still 65.0 MB. Free memory was 32.0 MB in the beginning and 46.5 MB in the end (delta: -14.6 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. [2021-10-24 09:47:37,007 INFO L168 Benchmark]: Boogie Preprocessor took 60.25 ms. Allocated memory is still 65.0 MB. Free memory was 46.5 MB in the beginning and 44.1 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-24 09:47:37,008 INFO L168 Benchmark]: RCFGBuilder took 2255.87 ms. Allocated memory was 65.0 MB in the beginning and 88.1 MB in the end (delta: 23.1 MB). Free memory was 44.1 MB in the beginning and 63.1 MB in the end (delta: -18.9 MB). Peak memory consumption was 31.9 MB. Max. memory is 16.1 GB. [2021-10-24 09:47:37,008 INFO L168 Benchmark]: TraceAbstraction took 5994.67 ms. Allocated memory is still 88.1 MB. Free memory was 62.5 MB in the beginning and 59.7 MB in the end (delta: 2.9 MB). Peak memory consumption was 36.9 MB. Max. memory is 16.1 GB. [2021-10-24 09:47:37,009 INFO L168 Benchmark]: Witness Printer took 81.97 ms. Allocated memory is still 88.1 MB. Free memory was 59.7 MB in the beginning and 49.2 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-24 09:47:37,011 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 65.0 MB. Free memory is still 44.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 627.59 ms. Allocated memory is still 65.0 MB. Free memory was 42.8 MB in the beginning and 32.0 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 90.40 ms. Allocated memory is still 65.0 MB. Free memory was 32.0 MB in the beginning and 46.5 MB in the end (delta: -14.6 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 60.25 ms. Allocated memory is still 65.0 MB. Free memory was 46.5 MB in the beginning and 44.1 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2255.87 ms. Allocated memory was 65.0 MB in the beginning and 88.1 MB in the end (delta: 23.1 MB). Free memory was 44.1 MB in the beginning and 63.1 MB in the end (delta: -18.9 MB). Peak memory consumption was 31.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5994.67 ms. Allocated memory is still 88.1 MB. Free memory was 62.5 MB in the beginning and 59.7 MB in the end (delta: 2.9 MB). Peak memory consumption was 36.9 MB. Max. memory is 16.1 GB. * Witness Printer took 81.97 ms. Allocated memory is still 88.1 MB. Free memory was 59.7 MB in the beginning and 49.2 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 555]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L99] int pumpRunning = 0; [L100] int systemActive = 1; [L366] int waterLevel = 1; [L367] int methaneLevelCritical = 0; [L455] int cleanupTimeShifts = 4; [L763] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L528] int retValue_acc ; [L529] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L535] tmp = valid_product() [L537] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L297] int splverifierCounter ; [L298] int tmp ; [L299] int tmp___0 ; [L300] int tmp___1 ; [L301] int tmp___2 ; [L304] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L306] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L308] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L314] tmp = __VERIFIER_nondet_int() [L316] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L384] COND TRUE waterLevel < 2 [L385] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L324] tmp___0 = __VERIFIER_nondet_int() [L326] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L334] tmp___2 = __VERIFIER_nondet_int() [L336] COND TRUE \read(tmp___2) [L288] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L107] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L114] COND TRUE \read(systemActive) [L136] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L139] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L561] int tmp ; [L562] int tmp___0 ; [L563] int tmp___1 ; [L405] int retValue_acc ; [L408] retValue_acc = methaneLevelCritical [L409] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L567] tmp = isMethaneLevelCritical() [L569] COND FALSE !(\read(tmp)) [L437] int retValue_acc ; [L440] retValue_acc = waterLevel [L441] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L573] tmp___0 = getWaterLevel() [L575] COND TRUE tmp___0 == 2 [L206] int retValue_acc ; [L209] retValue_acc = pumpRunning [L210] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L577] tmp___1 = isPumpRunning() [L579] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L555] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - UnprovableResult [Line: 555]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 555]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 83 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 5801.7ms, OverallIterations: 5, TraceHistogramMax: 1, EmptinessCheckTime: 30.1ms, AutomataDifference: 499.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 19.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 301 SDtfs, 802 SDslu, 631 SDs, 0 SdLazy, 118 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 153.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 173 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 142.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=148occurred in iteration=4, InterpolantAutomatonStates: 25, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 103.7ms AutomataMinimizationTime, 4 MinimizatonAttempts, 437 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 129.4ms SsaConstructionTime, 1509.8ms SatisfiabilityAnalysisTime, 668.8ms InterpolantComputationTime, 112 NumberOfCodeBlocks, 112 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 164 ConstructedInterpolants, 0 QuantifiedInterpolants, 287 SizeOfPredicates, 4 NumberOfNonLiveVariables, 792 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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 proved your program to be incorrect! [2021-10-24 09:47:37,058 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173b526e-1c26-4e4b-ab15-adbd5a2c214a/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...