./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-regression/alt_test.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_59f773a6-a413-4d3f-a0e7-7aee93db895e/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_59f773a6-a413-4d3f-a0e7-7aee93db895e/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_59f773a6-a413-4d3f-a0e7-7aee93db895e/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_59f773a6-a413-4d3f-a0e7-7aee93db895e/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-regression/alt_test.i -s /tmp/vcloud-vcloud-master/worker/run_dir_59f773a6-a413-4d3f-a0e7-7aee93db895e/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_59f773a6-a413-4d3f-a0e7-7aee93db895e/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 28a1c96d0dcbab8e66df0b7e0c92c558fac63e78 ...................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_59f773a6-a413-4d3f-a0e7-7aee93db895e/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_59f773a6-a413-4d3f-a0e7-7aee93db895e/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_59f773a6-a413-4d3f-a0e7-7aee93db895e/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_59f773a6-a413-4d3f-a0e7-7aee93db895e/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-regression/alt_test.i -s /tmp/vcloud-vcloud-master/worker/run_dir_59f773a6-a413-4d3f-a0e7-7aee93db895e/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_59f773a6-a413-4d3f-a0e7-7aee93db895e/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 28a1c96d0dcbab8e66df0b7e0c92c558fac63e78 ............................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.25-f470102 [2019-12-07 10:56:05,567 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 10:56:05,568 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 10:56:05,576 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 10:56:05,576 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 10:56:05,576 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 10:56:05,577 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 10:56:05,579 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 10:56:05,580 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 10:56:05,581 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 10:56:05,582 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 10:56:05,583 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 10:56:05,583 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 10:56:05,583 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 10:56:05,584 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 10:56:05,585 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 10:56:05,585 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 10:56:05,586 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 10:56:05,587 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 10:56:05,589 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 10:56:05,590 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 10:56:05,591 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 10:56:05,591 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 10:56:05,592 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 10:56:05,593 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 10:56:05,593 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 10:56:05,594 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 10:56:05,594 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 10:56:05,594 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 10:56:05,595 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 10:56:05,595 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 10:56:05,596 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 10:56:05,596 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 10:56:05,597 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 10:56:05,598 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 10:56:05,598 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 10:56:05,599 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 10:56:05,599 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 10:56:05,599 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 10:56:05,600 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 10:56:05,600 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 10:56:05,601 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_59f773a6-a413-4d3f-a0e7-7aee93db895e/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 10:56:05,614 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 10:56:05,614 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 10:56:05,615 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 10:56:05,615 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 10:56:05,615 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 10:56:05,615 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 10:56:05,615 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 10:56:05,616 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 10:56:05,616 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 10:56:05,616 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 10:56:05,616 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 10:56:05,616 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 10:56:05,617 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 10:56:05,617 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 10:56:05,617 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 10:56:05,617 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 10:56:05,618 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 10:56:05,618 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 10:56:05,618 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 10:56:05,618 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 10:56:05,618 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 10:56:05,619 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 10:56:05,619 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 10:56:05,619 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 10:56:05,619 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 10:56:05,619 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 10:56:05,619 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 10:56:05,620 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 10:56:05,620 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 10:56:05,620 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 10:56:05,620 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 10:56:05,620 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 10:56:05,621 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 10:56:05,621 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 10:56:05,621 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 10:56:05,621 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 10:56:05,621 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 10:56:05,621 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 10:56:05,622 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 10:56:05,622 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 10:56:05,622 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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-vcloud-master/worker/run_dir_59f773a6-a413-4d3f-a0e7-7aee93db895e/bin/utaipan 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(__VERIFIER_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 -> 28a1c96d0dcbab8e66df0b7e0c92c558fac63e78 [2019-12-07 10:56:05,731 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 10:56:05,740 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 10:56:05,743 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 10:56:05,744 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 10:56:05,745 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 10:56:05,745 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_59f773a6-a413-4d3f-a0e7-7aee93db895e/bin/utaipan/../../sv-benchmarks/c/ldv-regression/alt_test.i [2019-12-07 10:56:05,785 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_59f773a6-a413-4d3f-a0e7-7aee93db895e/bin/utaipan/data/3a82b986c/30f77f99baee4b54b378a8cf6b0ab725/FLAG85743a031 [2019-12-07 10:56:06,253 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 10:56:06,254 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_59f773a6-a413-4d3f-a0e7-7aee93db895e/sv-benchmarks/c/ldv-regression/alt_test.i [2019-12-07 10:56:06,265 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_59f773a6-a413-4d3f-a0e7-7aee93db895e/bin/utaipan/data/3a82b986c/30f77f99baee4b54b378a8cf6b0ab725/FLAG85743a031 [2019-12-07 10:56:06,274 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_59f773a6-a413-4d3f-a0e7-7aee93db895e/bin/utaipan/data/3a82b986c/30f77f99baee4b54b378a8cf6b0ab725 [2019-12-07 10:56:06,276 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 10:56:06,277 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 10:56:06,278 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 10:56:06,278 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 10:56:06,280 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 10:56:06,281 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:56:06" (1/1) ... [2019-12-07 10:56:06,282 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e799b16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:56:06, skipping insertion in model container [2019-12-07 10:56:06,282 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:56:06" (1/1) ... [2019-12-07 10:56:06,287 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 10:56:06,317 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 10:56:06,582 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 10:56:06,587 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) [2019-12-07 10:56:06,588 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5ea22f37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:56:06, skipping insertion in model container [2019-12-07 10:56:06,588 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 10:56:06,588 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2019-12-07 10:56:06,590 INFO L168 Benchmark]: Toolchain (without parser) took 312.00 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.3 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -156.4 MB). Peak memory consumption was 23.6 MB. Max. memory is 11.5 GB. [2019-12-07 10:56:06,590 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 10:56:06,591 INFO L168 Benchmark]: CACSL2BoogieTranslator took 310.18 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.3 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -156.4 MB). Peak memory consumption was 23.6 MB. Max. memory is 11.5 GB. [2019-12-07 10:56:06,592 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 310.18 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.3 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -156.4 MB). Peak memory consumption was 23.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 1612]: 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 0.1.25-f470102 [2019-12-07 10:56:07,710 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 10:56:07,711 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 10:56:07,719 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 10:56:07,720 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 10:56:07,720 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 10:56:07,721 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 10:56:07,723 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 10:56:07,724 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 10:56:07,724 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 10:56:07,725 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 10:56:07,726 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 10:56:07,726 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 10:56:07,727 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 10:56:07,727 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 10:56:07,728 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 10:56:07,729 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 10:56:07,729 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 10:56:07,731 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 10:56:07,732 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 10:56:07,733 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 10:56:07,734 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 10:56:07,735 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 10:56:07,735 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 10:56:07,737 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 10:56:07,737 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 10:56:07,737 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 10:56:07,738 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 10:56:07,738 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 10:56:07,739 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 10:56:07,739 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 10:56:07,740 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 10:56:07,740 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 10:56:07,741 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 10:56:07,741 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 10:56:07,741 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 10:56:07,742 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 10:56:07,742 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 10:56:07,742 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 10:56:07,743 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 10:56:07,743 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 10:56:07,744 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_59f773a6-a413-4d3f-a0e7-7aee93db895e/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-12-07 10:56:07,754 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 10:56:07,754 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 10:56:07,754 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 10:56:07,754 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 10:56:07,755 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 10:56:07,755 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 10:56:07,755 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 10:56:07,755 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 10:56:07,755 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 10:56:07,755 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 10:56:07,756 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 10:56:07,756 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 10:56:07,756 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 10:56:07,756 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 10:56:07,756 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 10:56:07,756 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 10:56:07,756 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 10:56:07,757 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 10:56:07,757 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 10:56:07,757 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 10:56:07,757 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 10:56:07,757 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 10:56:07,757 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 10:56:07,757 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 10:56:07,757 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 10:56:07,758 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 10:56:07,758 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 10:56:07,758 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 10:56:07,758 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 10:56:07,758 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 10:56:07,758 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 10:56:07,758 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 10:56:07,758 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 10:56:07,759 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 10:56:07,759 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 10:56:07,759 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 10:56:07,759 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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-vcloud-master/worker/run_dir_59f773a6-a413-4d3f-a0e7-7aee93db895e/bin/utaipan 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(__VERIFIER_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 -> 28a1c96d0dcbab8e66df0b7e0c92c558fac63e78 [2019-12-07 10:56:07,920 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 10:56:07,930 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 10:56:07,933 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 10:56:07,934 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 10:56:07,934 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 10:56:07,935 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_59f773a6-a413-4d3f-a0e7-7aee93db895e/bin/utaipan/../../sv-benchmarks/c/ldv-regression/alt_test.i [2019-12-07 10:56:07,976 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_59f773a6-a413-4d3f-a0e7-7aee93db895e/bin/utaipan/data/46547444b/cb719af38013462893895afc00d75eb6/FLAGc7c281e0a [2019-12-07 10:56:08,461 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 10:56:08,461 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_59f773a6-a413-4d3f-a0e7-7aee93db895e/sv-benchmarks/c/ldv-regression/alt_test.i [2019-12-07 10:56:08,471 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_59f773a6-a413-4d3f-a0e7-7aee93db895e/bin/utaipan/data/46547444b/cb719af38013462893895afc00d75eb6/FLAGc7c281e0a [2019-12-07 10:56:08,480 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_59f773a6-a413-4d3f-a0e7-7aee93db895e/bin/utaipan/data/46547444b/cb719af38013462893895afc00d75eb6 [2019-12-07 10:56:08,482 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 10:56:08,483 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 10:56:08,483 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 10:56:08,483 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 10:56:08,486 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 10:56:08,486 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:56:08" (1/1) ... [2019-12-07 10:56:08,488 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5031311 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:56:08, skipping insertion in model container [2019-12-07 10:56:08,488 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:56:08" (1/1) ... [2019-12-07 10:56:08,493 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 10:56:08,520 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 10:56:08,764 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 10:56:08,770 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-12-07 10:56:08,779 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 10:56:08,798 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 10:56:08,799 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 10:56:08,823 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 10:56:08,883 INFO L208 MainTranslator]: Completed translation [2019-12-07 10:56:08,883 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:56:08 WrapperNode [2019-12-07 10:56:08,883 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 10:56:08,884 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 10:56:08,884 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 10:56:08,884 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 10:56:08,890 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:56:08" (1/1) ... [2019-12-07 10:56:08,903 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:56:08" (1/1) ... [2019-12-07 10:56:08,917 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 10:56:08,917 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 10:56:08,917 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 10:56:08,917 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 10:56:08,923 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:56:08" (1/1) ... [2019-12-07 10:56:08,924 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:56:08" (1/1) ... [2019-12-07 10:56:08,926 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:56:08" (1/1) ... [2019-12-07 10:56:08,926 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:56:08" (1/1) ... [2019-12-07 10:56:08,931 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:56:08" (1/1) ... [2019-12-07 10:56:08,932 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:56:08" (1/1) ... [2019-12-07 10:56:08,934 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:56:08" (1/1) ... [2019-12-07 10:56:08,936 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 10:56:08,936 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 10:56:08,936 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 10:56:08,936 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 10:56:08,937 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:56:08" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_59f773a6-a413-4d3f-a0e7-7aee93db895e/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 10:56:08,981 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 10:56:08,981 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-12-07 10:56:08,981 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 10:56:08,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 10:56:09,141 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 10:56:09,141 INFO L287 CfgBuilder]: Removed 14 assume(true) statements. [2019-12-07 10:56:09,142 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:56:09 BoogieIcfgContainer [2019-12-07 10:56:09,142 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 10:56:09,143 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 10:56:09,143 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 10:56:09,145 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 10:56:09,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 10:56:08" (1/3) ... [2019-12-07 10:56:09,145 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b085f49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 10:56:09, skipping insertion in model container [2019-12-07 10:56:09,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:56:08" (2/3) ... [2019-12-07 10:56:09,146 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b085f49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 10:56:09, skipping insertion in model container [2019-12-07 10:56:09,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:56:09" (3/3) ... [2019-12-07 10:56:09,147 INFO L109 eAbstractionObserver]: Analyzing ICFG alt_test.i [2019-12-07 10:56:09,154 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 10:56:09,158 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-12-07 10:56:09,165 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-12-07 10:56:09,179 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 10:56:09,179 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 10:56:09,179 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 10:56:09,179 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 10:56:09,179 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 10:56:09,179 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 10:56:09,179 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 10:56:09,180 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 10:56:09,188 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2019-12-07 10:56:09,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-07 10:56:09,192 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:56:09,193 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 10:56:09,193 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 10:56:09,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:56:09,197 INFO L82 PathProgramCache]: Analyzing trace with hash 119352108, now seen corresponding path program 1 times [2019-12-07 10:56:09,204 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 10:56:09,204 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [973064322] [2019-12-07 10:56:09,204 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_59f773a6-a413-4d3f-a0e7-7aee93db895e/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-12-07 10:56:09,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:56:09,269 INFO L264 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 10:56:09,273 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:56:09,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:56:09,298 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 10:56:09,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:56:09,301 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [973064322] [2019-12-07 10:56:09,302 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:56:09,302 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-12-07 10:56:09,303 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857606057] [2019-12-07 10:56:09,306 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 10:56:09,306 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 10:56:09,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 10:56:09,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 10:56:09,317 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 3 states. [2019-12-07 10:56:09,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:56:09,342 INFO L93 Difference]: Finished difference Result 39 states and 46 transitions. [2019-12-07 10:56:09,343 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 10:56:09,344 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-07 10:56:09,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:56:09,351 INFO L225 Difference]: With dead ends: 39 [2019-12-07 10:56:09,351 INFO L226 Difference]: Without dead ends: 20 [2019-12-07 10:56:09,354 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 10:56:09,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-12-07 10:56:09,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 19. [2019-12-07 10:56:09,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-12-07 10:56:09,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2019-12-07 10:56:09,379 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 8 [2019-12-07 10:56:09,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:56:09,379 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2019-12-07 10:56:09,379 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 10:56:09,380 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2019-12-07 10:56:09,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-07 10:56:09,380 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:56:09,380 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 10:56:09,581 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 10:56:09,581 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 10:56:09,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:56:09,582 INFO L82 PathProgramCache]: Analyzing trace with hash 176610410, now seen corresponding path program 1 times [2019-12-07 10:56:09,583 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 10:56:09,583 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [637618488] [2019-12-07 10:56:09,584 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_59f773a6-a413-4d3f-a0e7-7aee93db895e/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-12-07 10:56:09,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:56:09,674 INFO L264 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 10:56:09,676 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:56:09,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:56:09,683 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 10:56:09,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:56:09,685 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [637618488] [2019-12-07 10:56:09,685 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:56:09,685 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-12-07 10:56:09,686 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757908322] [2019-12-07 10:56:09,687 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 10:56:09,687 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 10:56:09,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 10:56:09,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 10:56:09,688 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand 3 states. [2019-12-07 10:56:09,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:56:09,695 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2019-12-07 10:56:09,696 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 10:56:09,696 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-07 10:56:09,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:56:09,697 INFO L225 Difference]: With dead ends: 25 [2019-12-07 10:56:09,697 INFO L226 Difference]: Without dead ends: 13 [2019-12-07 10:56:09,698 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 10:56:09,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2019-12-07 10:56:09,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2019-12-07 10:56:09,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-12-07 10:56:09,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2019-12-07 10:56:09,702 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 8 [2019-12-07 10:56:09,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:56:09,703 INFO L462 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2019-12-07 10:56:09,703 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 10:56:09,703 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2019-12-07 10:56:09,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 10:56:09,704 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:56:09,704 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 10:56:09,905 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 10:56:09,905 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 10:56:09,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:56:09,906 INFO L82 PathProgramCache]: Analyzing trace with hash -262109109, now seen corresponding path program 1 times [2019-12-07 10:56:09,907 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 10:56:09,907 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [48047311] [2019-12-07 10:56:09,907 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_59f773a6-a413-4d3f-a0e7-7aee93db895e/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-12-07 10:56:09,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:56:09,976 INFO L264 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 10:56:09,977 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:56:09,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:56:09,995 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 10:56:10,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:56:10,001 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [48047311] [2019-12-07 10:56:10,001 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:56:10,001 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-12-07 10:56:10,001 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287061065] [2019-12-07 10:56:10,001 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 10:56:10,002 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 10:56:10,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 10:56:10,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 10:56:10,002 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 5 states. [2019-12-07 10:56:10,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:56:10,037 INFO L93 Difference]: Finished difference Result 19 states and 18 transitions. [2019-12-07 10:56:10,037 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 10:56:10,038 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2019-12-07 10:56:10,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:56:10,038 INFO L225 Difference]: With dead ends: 19 [2019-12-07 10:56:10,038 INFO L226 Difference]: Without dead ends: 13 [2019-12-07 10:56:10,038 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-12-07 10:56:10,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2019-12-07 10:56:10,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2019-12-07 10:56:10,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-12-07 10:56:10,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 12 transitions. [2019-12-07 10:56:10,041 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 12 transitions. Word has length 11 [2019-12-07 10:56:10,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:56:10,041 INFO L462 AbstractCegarLoop]: Abstraction has 13 states and 12 transitions. [2019-12-07 10:56:10,041 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 10:56:10,041 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 12 transitions. [2019-12-07 10:56:10,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-07 10:56:10,041 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:56:10,042 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 10:56:10,242 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 10:56:10,243 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 10:56:10,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:56:10,243 INFO L82 PathProgramCache]: Analyzing trace with hash -1912419270, now seen corresponding path program 1 times [2019-12-07 10:56:10,244 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 10:56:10,244 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1168368587] [2019-12-07 10:56:10,245 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_59f773a6-a413-4d3f-a0e7-7aee93db895e/bin/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2019-12-07 10:56:10,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:56:10,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:56:10,385 INFO L174 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2019-12-07 10:56:10,385 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 10:56:10,585 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 10:56:10,609 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 10:56:10 BoogieIcfgContainer [2019-12-07 10:56:10,610 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 10:56:10,610 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 10:56:10,610 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 10:56:10,610 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 10:56:10,610 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:56:09" (3/4) ... [2019-12-07 10:56:10,612 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 10:56:10,647 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_59f773a6-a413-4d3f-a0e7-7aee93db895e/bin/utaipan/witness.graphml [2019-12-07 10:56:10,647 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 10:56:10,649 INFO L168 Benchmark]: Toolchain (without parser) took 2165.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.1 MB). Free memory was 947.0 MB in the beginning and 946.5 MB in the end (delta: 474.0 kB). Peak memory consumption was 121.6 MB. Max. memory is 11.5 GB. [2019-12-07 10:56:10,649 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 10:56:10,650 INFO L168 Benchmark]: CACSL2BoogieTranslator took 400.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.1 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -121.2 MB). Peak memory consumption was 27.0 MB. Max. memory is 11.5 GB. [2019-12-07 10:56:10,650 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.49 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 10:56:10,650 INFO L168 Benchmark]: Boogie Preprocessor took 18.66 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 10:56:10,651 INFO L168 Benchmark]: RCFGBuilder took 205.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. [2019-12-07 10:56:10,652 INFO L168 Benchmark]: TraceAbstraction took 1466.84 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 953.4 MB in the end (delta: 88.0 MB). Peak memory consumption was 88.0 MB. Max. memory is 11.5 GB. [2019-12-07 10:56:10,652 INFO L168 Benchmark]: Witness Printer took 37.49 ms. Allocated memory is still 1.2 GB. Free memory was 953.4 MB in the beginning and 946.5 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-12-07 10:56:10,654 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 400.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.1 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -121.2 MB). Peak memory consumption was 27.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 33.49 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 18.66 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 205.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1466.84 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 953.4 MB in the end (delta: 88.0 MB). Peak memory consumption was 88.0 MB. Max. memory is 11.5 GB. * Witness Printer took 37.49 ms. Allocated memory is still 1.2 GB. Free memory was 953.4 MB in the beginning and 946.5 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1601]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L1606] int globalState = 0; VAL [globalState=0] [L1619] void *retVal = malloc(size); VAL [globalState=0] [L1620] COND TRUE retVal != ((void *)0) [L1621] globalState=1 VAL [globalState=1] [L1622] return retVal; VAL [globalState=1] [L1612] int *a = (int*) l_malloc(sizeof(int)); [L1629] COND TRUE ptr!=((void *)0) VAL [globalState=1] [L1629] (globalState == 1) ? (0) : __blast_assert () VAL [globalState=1] [L1630] globalState = 0 [L1629] COND TRUE ptr!=((void *)0) VAL [globalState=0] [L1629] (globalState == 1) ? (0) : __blast_assert () VAL [globalState=0] [L1601] __VERIFIER_error() VAL [globalState=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 20 locations, 2 error locations. Result: UNSAFE, OverallTime: 1.4s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 40 SDtfs, 33 SDslu, 21 SDs, 0 SdLazy, 20 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 50 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 48 ConstructedInterpolants, 0 QuantifiedInterpolants, 902 SizeOfPredicates, 7 NumberOfNonLiveVariables, 119 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...