./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/xcsp/aim-100-6-0-sat-4.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45760adc-9961-4b7b-9d54-b230bf0fee3a/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45760adc-9961-4b7b-9d54-b230bf0fee3a/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45760adc-9961-4b7b-9d54-b230bf0fee3a/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45760adc-9961-4b7b-9d54-b230bf0fee3a/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/xcsp/aim-100-6-0-sat-4.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45760adc-9961-4b7b-9d54-b230bf0fee3a/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45760adc-9961-4b7b-9d54-b230bf0fee3a/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4ec8c674148764d20bd14aea4012f1252f110e6f8f304759c19f298f2f1e60d7 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:59:16,875 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:59:16,979 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45760adc-9961-4b7b-9d54-b230bf0fee3a/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 04:59:16,986 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:59:16,986 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:59:17,015 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:59:17,016 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:59:17,016 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:59:17,016 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:59:17,017 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:59:17,017 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:59:17,017 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:59:17,017 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:59:17,017 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:59:17,018 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:59:17,018 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:59:17,018 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:59:17,018 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:59:17,018 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:59:17,018 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:59:17,018 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:59:17,018 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:59:17,018 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:59:17,019 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:59:17,019 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:59:17,019 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:59:17,019 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:59:17,019 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:59:17,019 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:59:17,019 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:59:17,019 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:59:17,019 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:59:17,020 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:59:17,020 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:59:17,020 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:59:17,020 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:59:17,020 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:59:17,020 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:59:17,020 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:59:17,020 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:59:17,021 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:59:17,021 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:59:17,021 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:59:17,021 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:59:17,021 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:59:17,021 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:59:17,021 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:59:17,021 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:59:17,021 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_45760adc-9961-4b7b-9d54-b230bf0fee3a/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ec8c674148764d20bd14aea4012f1252f110e6f8f304759c19f298f2f1e60d7 [2024-11-28 04:59:17,384 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:59:17,400 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:59:17,405 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:59:17,406 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:59:17,407 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:59:17,410 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45760adc-9961-4b7b-9d54-b230bf0fee3a/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/xcsp/aim-100-6-0-sat-4.c [2024-11-28 04:59:20,569 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45760adc-9961-4b7b-9d54-b230bf0fee3a/bin/uautomizer-verify-aQ6SnzHsRB/data/3a7a2347e/9f6ebc00228e4877b1a6cb8c1553ac0d/FLAG04ed45042 [2024-11-28 04:59:20,979 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:59:20,980 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45760adc-9961-4b7b-9d54-b230bf0fee3a/sv-benchmarks/c/xcsp/aim-100-6-0-sat-4.c [2024-11-28 04:59:21,006 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45760adc-9961-4b7b-9d54-b230bf0fee3a/bin/uautomizer-verify-aQ6SnzHsRB/data/3a7a2347e/9f6ebc00228e4877b1a6cb8c1553ac0d/FLAG04ed45042 [2024-11-28 04:59:21,165 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45760adc-9961-4b7b-9d54-b230bf0fee3a/bin/uautomizer-verify-aQ6SnzHsRB/data/3a7a2347e/9f6ebc00228e4877b1a6cb8c1553ac0d [2024-11-28 04:59:21,169 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:59:21,171 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:59:21,174 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:59:21,176 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:59:21,182 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:59:21,183 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:59:21" (1/1) ... [2024-11-28 04:59:21,186 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@190002dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:59:21, skipping insertion in model container [2024-11-28 04:59:21,186 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:59:21" (1/1) ... [2024-11-28 04:59:21,263 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:59:21,898 WARN L250 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_45760adc-9961-4b7b-9d54-b230bf0fee3a/sv-benchmarks/c/xcsp/aim-100-6-0-sat-4.c[43724,43737] [2024-11-28 04:59:21,939 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:59:21,955 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:59:22,207 WARN L250 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_45760adc-9961-4b7b-9d54-b230bf0fee3a/sv-benchmarks/c/xcsp/aim-100-6-0-sat-4.c[43724,43737] [2024-11-28 04:59:22,233 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:59:22,250 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:59:22,251 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:59:22 WrapperNode [2024-11-28 04:59:22,251 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:59:22,252 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:59:22,253 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:59:22,253 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:59:22,262 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:59:22" (1/1) ... [2024-11-28 04:59:22,387 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:59:22" (1/1) ... [2024-11-28 04:59:23,397 INFO L138 Inliner]: procedures = 13, calls = 777, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 11046 [2024-11-28 04:59:23,400 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:59:23,401 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:59:23,401 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:59:23,401 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:59:23,412 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:59:22" (1/1) ... [2024-11-28 04:59:23,413 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:59:22" (1/1) ... [2024-11-28 04:59:23,598 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:59:22" (1/1) ... [2024-11-28 04:59:23,773 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-28 04:59:23,780 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:59:22" (1/1) ... [2024-11-28 04:59:23,780 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:59:22" (1/1) ... [2024-11-28 04:59:24,460 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:59:22" (1/1) ... [2024-11-28 04:59:24,500 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:59:22" (1/1) ... [2024-11-28 04:59:24,677 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:59:22" (1/1) ... [2024-11-28 04:59:24,729 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:59:22" (1/1) ... [2024-11-28 04:59:24,768 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:59:22" (1/1) ... [2024-11-28 04:59:24,908 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:59:24,911 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:59:24,912 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:59:24,912 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:59:24,913 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:59:22" (1/1) ... [2024-11-28 04:59:24,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:59:24,946 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45760adc-9961-4b7b-9d54-b230bf0fee3a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:59:24,968 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45760adc-9961-4b7b-9d54-b230bf0fee3a/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:59:24,973 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45760adc-9961-4b7b-9d54-b230bf0fee3a/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:59:25,007 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:59:25,008 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:59:25,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:59:25,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 04:59:25,010 INFO L130 BoogieDeclarations]: Found specification of procedure assume [2024-11-28 04:59:25,010 INFO L138 BoogieDeclarations]: Found implementation of procedure assume [2024-11-28 04:59:25,567 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:59:25,570 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:59:42,074 INFO L? ?]: Removed 2255 outVars from TransFormulas that were not future-live. [2024-11-28 04:59:42,074 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:59:42,206 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:59:42,206 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-28 04:59:42,206 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:59:42 BoogieIcfgContainer [2024-11-28 04:59:42,209 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:59:42,213 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:59:42,214 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:59:42,221 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:59:42,221 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:59:21" (1/3) ... [2024-11-28 04:59:42,222 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14ee7246 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:59:42, skipping insertion in model container [2024-11-28 04:59:42,223 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:59:22" (2/3) ... [2024-11-28 04:59:42,223 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14ee7246 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:59:42, skipping insertion in model container [2024-11-28 04:59:42,223 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:59:42" (3/3) ... [2024-11-28 04:59:42,225 INFO L128 eAbstractionObserver]: Analyzing ICFG aim-100-6-0-sat-4.c [2024-11-28 04:59:42,245 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:59:42,248 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aim-100-6-0-sat-4.c that has 2 procedures, 5111 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-11-28 04:59:42,487 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:59:42,507 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@74c3e0e2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:59:42,509 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 04:59:42,536 INFO L276 IsEmpty]: Start isEmpty. Operand has 5111 states, 4338 states have (on average 1.5629322268326418) internal successors, (6780), 4339 states have internal predecessors, (6780), 770 states have call successors, (770), 1 states have call predecessors, (770), 1 states have return successors, (770), 770 states have call predecessors, (770), 770 states have call successors, (770) [2024-11-28 04:59:43,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5744 [2024-11-28 04:59:43,101 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:59:43,104 INFO L218 NwaCegarLoop]: trace histogram [770, 770, 770, 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, 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, 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, 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, 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, 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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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, 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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:59:43,105 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:59:43,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:59:43,116 INFO L85 PathProgramCache]: Analyzing trace with hash -1186598170, now seen corresponding path program 1 times [2024-11-28 04:59:43,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:59:43,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018598391] [2024-11-28 04:59:43,128 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:59:43,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:59:43,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:59:53,139 INFO L134 CoverageAnalysis]: Checked inductivity of 1184260 backedges. 0 proven. 1538 refuted. 0 times theorem prover too weak. 1182722 trivial. 0 not checked. [2024-11-28 04:59:53,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:59:53,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018598391] [2024-11-28 04:59:53,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018598391] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:59:53,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [163671763] [2024-11-28 04:59:53,146 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:59:53,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:59:53,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45760adc-9961-4b7b-9d54-b230bf0fee3a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:59:53,152 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45760adc-9961-4b7b-9d54-b230bf0fee3a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:59:53,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45760adc-9961-4b7b-9d54-b230bf0fee3a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 04:59:56,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:59:56,332 INFO L256 TraceCheckSpWp]: Trace formula consists of 11386 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 04:59:56,477 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:59:57,198 INFO L134 CoverageAnalysis]: Checked inductivity of 1184260 backedges. 1538 proven. 0 refuted. 0 times theorem prover too weak. 1182722 trivial. 0 not checked. [2024-11-28 04:59:57,198 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:59:57,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [163671763] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:59:57,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:59:57,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 04:59:57,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738772229] [2024-11-28 04:59:57,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:59:57,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 04:59:57,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:59:57,254 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 04:59:57,255 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:59:57,269 INFO L87 Difference]: Start difference. First operand has 5111 states, 4338 states have (on average 1.5629322268326418) internal successors, (6780), 4339 states have internal predecessors, (6780), 770 states have call successors, (770), 1 states have call predecessors, (770), 1 states have return successors, (770), 770 states have call predecessors, (770), 770 states have call successors, (770) Second operand has 2 states, 2 states have (on average 949.0) internal successors, (1898), 2 states have internal predecessors, (1898), 2 states have call successors, (770), 2 states have call predecessors, (770), 1 states have return successors, (770), 1 states have call predecessors, (770), 2 states have call successors, (770) [2024-11-28 04:59:57,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:59:57,746 INFO L93 Difference]: Finished difference Result 10216 states and 17404 transitions. [2024-11-28 04:59:57,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 04:59:57,751 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 949.0) internal successors, (1898), 2 states have internal predecessors, (1898), 2 states have call successors, (770), 2 states have call predecessors, (770), 1 states have return successors, (770), 1 states have call predecessors, (770), 2 states have call successors, (770) Word has length 5743 [2024-11-28 04:59:57,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:59:57,801 INFO L225 Difference]: With dead ends: 10216 [2024-11-28 04:59:57,801 INFO L226 Difference]: Without dead ends: 5108 [2024-11-28 04:59:57,830 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5744 GetRequests, 5744 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:59:57,835 INFO L435 NwaCegarLoop]: 8316 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8316 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:59:57,837 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8316 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:59:57,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5108 states. [2024-11-28 04:59:58,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5108 to 5108. [2024-11-28 04:59:58,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5108 states, 4336 states have (on average 1.562730627306273) internal successors, (6776), 4336 states have internal predecessors, (6776), 770 states have call successors, (770), 1 states have call predecessors, (770), 1 states have return successors, (770), 770 states have call predecessors, (770), 770 states have call successors, (770) [2024-11-28 04:59:58,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5108 states to 5108 states and 8316 transitions. [2024-11-28 04:59:58,844 INFO L78 Accepts]: Start accepts. Automaton has 5108 states and 8316 transitions. Word has length 5743 [2024-11-28 04:59:58,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:59:58,847 INFO L471 AbstractCegarLoop]: Abstraction has 5108 states and 8316 transitions. [2024-11-28 04:59:58,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 949.0) internal successors, (1898), 2 states have internal predecessors, (1898), 2 states have call successors, (770), 2 states have call predecessors, (770), 1 states have return successors, (770), 1 states have call predecessors, (770), 2 states have call successors, (770) [2024-11-28 04:59:58,857 INFO L276 IsEmpty]: Start isEmpty. Operand 5108 states and 8316 transitions. [2024-11-28 04:59:59,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5744 [2024-11-28 04:59:59,272 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:59:59,274 INFO L218 NwaCegarLoop]: trace histogram [770, 770, 770, 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, 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, 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, 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, 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, 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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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, 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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:59:59,293 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45760adc-9961-4b7b-9d54-b230bf0fee3a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 04:59:59,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45760adc-9961-4b7b-9d54-b230bf0fee3a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-28 04:59:59,475 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:59:59,478 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:59:59,480 INFO L85 PathProgramCache]: Analyzing trace with hash -875423306, now seen corresponding path program 1 times [2024-11-28 04:59:59,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:59:59,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552893680] [2024-11-28 04:59:59,481 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:59:59,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:00:04,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat