./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-82.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4f9af400 extending candidate: java ['java'] extending candidate: /usr/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/oracle-jdk-bin-*/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/openjdk-*/bin/java ['java', '/usr/bin/java'] extending candidate: /usr/lib/jvm/java-*-openjdk-amd64/bin/java ['java', '/usr/bin/java', '/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java', '/usr/lib/jvm/java-17-openjdk-amd64/bin/java', '/usr/lib/jvm/java-11-openjdk-amd64/bin/java', '/usr/lib/jvm/java-1.17.0-openjdk-amd64/bin/java'] ['/root/.sdkman/candidates/java/21.0.5-tem/bin/java', '-Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config', '-Xmx15G', '-Xms4m', '-jar', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar', '-data', '@noDefault', '-ultimatedata', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data', '-tc', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml', '-i', '../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-82.i', '-s', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf', '--cacsl2boogietranslator.entry.function', 'main', '--witnessprinter.witness.directory', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux', '--witnessprinter.witness.filename', 'witness', '--witnessprinter.write.witness.besides.input.file', 'false', '--witnessprinter.graph.data.specification', 'CHECK( init(main()), LTL(G ! call(reach_error())) )\n\n', '--witnessprinter.graph.data.producer', 'Automizer', '--witnessprinter.graph.data.architecture', '32bit', '--witnessprinter.graph.data.programhash', 'ac500415e5d2e9d3fb881d4fbfbb2b334efa6f0be9649c96e889d794785b3706'] Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-82.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --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 ac500415e5d2e9d3fb881d4fbfbb2b334efa6f0be9649c96e889d794785b3706 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 07:52:35,574 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 07:52:35,670 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-07 07:52:35,677 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 07:52:35,678 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 07:52:35,705 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 07:52:35,705 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 07:52:35,706 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 07:52:35,706 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 07:52:35,706 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 07:52:35,706 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 07:52:35,706 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 07:52:35,707 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 07:52:35,707 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 07:52:35,707 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 07:52:35,708 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 07:52:35,708 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 07:52:35,708 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 07:52:35,709 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 07:52:35,709 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 07:52:35,709 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 07:52:35,709 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 07:52:35,709 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 07:52:35,709 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 07:52:35,709 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 07:52:35,710 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 07:52:35,710 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 07:52:35,710 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 07:52:35,710 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 07:52:35,710 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 07:52:35,710 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 07:52:35,711 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 07:52:35,711 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 07:52:35,711 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 07:52:35,712 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 07:52:35,712 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 07:52:35,712 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 07:52:35,712 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 07:52:35,712 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 07:52:35,712 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 07:52:35,712 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 07:52:35,712 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 07:52:35,712 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 -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux 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 -> ac500415e5d2e9d3fb881d4fbfbb2b334efa6f0be9649c96e889d794785b3706 [2024-11-07 07:52:35,962 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 07:52:35,971 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 07:52:35,975 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 07:52:35,976 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 07:52:35,976 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 07:52:35,977 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-82.i [2024-11-07 07:52:37,269 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 07:52:37,556 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 07:52:37,557 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-82.i [2024-11-07 07:52:37,566 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/5bbd000ee/ed89f4c5027641b2b3df0ef469d5fc2b/FLAG2be50a820 [2024-11-07 07:52:37,588 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/5bbd000ee/ed89f4c5027641b2b3df0ef469d5fc2b [2024-11-07 07:52:37,591 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 07:52:37,593 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 07:52:37,594 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 07:52:37,594 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 07:52:37,598 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 07:52:37,599 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:52:37" (1/1) ... [2024-11-07 07:52:37,600 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6dd3671c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:52:37, skipping insertion in model container [2024-11-07 07:52:37,600 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:52:37" (1/1) ... [2024-11-07 07:52:37,619 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 07:52:37,756 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-82.i[916,929] [2024-11-07 07:52:37,817 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 07:52:37,834 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 07:52:37,843 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-82.i[916,929] [2024-11-07 07:52:37,873 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 07:52:37,887 INFO L204 MainTranslator]: Completed translation [2024-11-07 07:52:37,888 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:52:37 WrapperNode [2024-11-07 07:52:37,888 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 07:52:37,889 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 07:52:37,889 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 07:52:37,889 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 07:52:37,894 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:52:37" (1/1) ... [2024-11-07 07:52:37,902 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:52:37" (1/1) ... [2024-11-07 07:52:37,945 INFO L138 Inliner]: procedures = 26, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 135 [2024-11-07 07:52:37,945 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 07:52:37,946 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 07:52:37,946 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 07:52:37,947 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 07:52:37,954 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:52:37" (1/1) ... [2024-11-07 07:52:37,954 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:52:37" (1/1) ... [2024-11-07 07:52:37,957 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:52:37" (1/1) ... [2024-11-07 07:52:37,974 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]. [2024-11-07 07:52:37,975 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:52:37" (1/1) ... [2024-11-07 07:52:37,975 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:52:37" (1/1) ... [2024-11-07 07:52:37,983 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:52:37" (1/1) ... [2024-11-07 07:52:37,987 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:52:37" (1/1) ... [2024-11-07 07:52:37,989 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:52:37" (1/1) ... [2024-11-07 07:52:37,990 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:52:37" (1/1) ... [2024-11-07 07:52:37,993 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 07:52:37,998 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 07:52:37,998 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 07:52:37,998 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 07:52:37,999 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:52:37" (1/1) ... [2024-11-07 07:52:38,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 07:52:38,019 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 07:52:38,033 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-07 07:52:38,036 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-07 07:52:38,058 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 07:52:38,059 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-07 07:52:38,059 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-07 07:52:38,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 07:52:38,060 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 07:52:38,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 07:52:38,137 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 07:52:38,139 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 07:52:38,490 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-11-07 07:52:38,490 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 07:52:38,500 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 07:52:38,501 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-07 07:52:38,502 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:52:38 BoogieIcfgContainer [2024-11-07 07:52:38,502 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 07:52:38,504 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 07:52:38,504 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 07:52:38,508 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 07:52:38,508 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 07:52:37" (1/3) ... [2024-11-07 07:52:38,508 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57eea683 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:52:38, skipping insertion in model container [2024-11-07 07:52:38,509 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:52:37" (2/3) ... [2024-11-07 07:52:38,509 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57eea683 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:52:38, skipping insertion in model container [2024-11-07 07:52:38,509 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:52:38" (3/3) ... [2024-11-07 07:52:38,510 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-82.i [2024-11-07 07:52:38,523 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 07:52:38,524 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-07 07:52:38,579 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 07:52:38,588 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;@222bacaf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 07:52:38,588 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-07 07:52:38,593 INFO L276 IsEmpty]: Start isEmpty. Operand has 60 states, 41 states have (on average 1.3902439024390243) internal successors, (57), 42 states have internal predecessors, (57), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-07 07:52:38,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-07 07:52:38,604 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 07:52:38,605 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 07:52:38,607 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 07:52:38,612 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 07:52:38,613 INFO L85 PathProgramCache]: Analyzing trace with hash -685609202, now seen corresponding path program 1 times [2024-11-07 07:52:38,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 07:52:38,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379177437] [2024-11-07 07:52:38,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 07:52:38,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 07:52:38,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:52:38,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 07:52:38,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:52:38,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 07:52:38,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:52:38,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 07:52:38,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:52:38,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 07:52:38,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:52:38,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 07:52:38,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:52:38,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 07:52:38,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:52:38,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 07:52:38,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:52:38,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 07:52:38,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:52:38,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 07:52:38,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:52:38,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 07:52:38,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:52:38,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 07:52:38,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:52:38,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 07:52:38,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:52:38,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 07:52:38,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:52:38,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 07:52:38,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:52:38,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-07 07:52:38,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:52:38,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 07:52:38,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:52:38,908 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-07 07:52:38,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 07:52:38,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379177437] [2024-11-07 07:52:38,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379177437] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 07:52:38,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 07:52:38,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 07:52:38,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808562166] [2024-11-07 07:52:38,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 07:52:38,917 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-07 07:52:38,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 07:52:38,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-07 07:52:38,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-07 07:52:38,939 INFO L87 Difference]: Start difference. First operand has 60 states, 41 states have (on average 1.3902439024390243) internal successors, (57), 42 states have internal predecessors, (57), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-07 07:52:38,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 07:52:38,970 INFO L93 Difference]: Finished difference Result 113 states and 188 transitions. [2024-11-07 07:52:38,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-07 07:52:38,972 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 105 [2024-11-07 07:52:38,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 07:52:38,980 INFO L225 Difference]: With dead ends: 113 [2024-11-07 07:52:38,980 INFO L226 Difference]: Without dead ends: 56 [2024-11-07 07:52:38,985 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-07 07:52:38,988 INFO L432 NwaCegarLoop]: 82 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, 82 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 07:52:38,989 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 07:52:39,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2024-11-07 07:52:39,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2024-11-07 07:52:39,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 38 states have (on average 1.3157894736842106) internal successors, (50), 38 states have internal predecessors, (50), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-07 07:52:39,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 82 transitions. [2024-11-07 07:52:39,027 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 82 transitions. Word has length 105 [2024-11-07 07:52:39,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 07:52:39,028 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 82 transitions. [2024-11-07 07:52:39,028 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-07 07:52:39,030 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 82 transitions. [2024-11-07 07:52:39,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-07 07:52:39,034 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 07:52:39,034 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 07:52:39,034 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 07:52:39,034 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 07:52:39,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 07:52:39,035 INFO L85 PathProgramCache]: Analyzing trace with hash 2099220238, now seen corresponding path program 1 times [2024-11-07 07:52:39,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 07:52:39,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136180898] [2024-11-07 07:52:39,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 07:52:39,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 07:52:39,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:52:39,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 07:52:39,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:52:39,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 07:52:39,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:52:39,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 07:52:39,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:52:39,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 07:52:39,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:52:39,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 07:52:39,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:52:39,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 07:52:39,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:52:39,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 07:52:39,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:52:39,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 07:52:39,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:52:39,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 07:52:39,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:52:39,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 07:52:39,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:52:39,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 07:52:39,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:52:39,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 07:52:39,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:52:39,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 07:52:39,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:52:39,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 07:52:39,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:52:39,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-07 07:52:39,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:52:39,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 07:52:39,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:52:39,488 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-07 07:52:39,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 07:52:39,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136180898] [2024-11-07 07:52:39,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136180898] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 07:52:39,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 07:52:39,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 07:52:39,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127295710] [2024-11-07 07:52:39,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 07:52:39,493 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 07:52:39,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 07:52:39,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 07:52:39,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 07:52:39,495 INFO L87 Difference]: Start difference. First operand 56 states and 82 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-07 07:52:39,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 07:52:39,584 INFO L93 Difference]: Finished difference Result 127 states and 185 transitions. [2024-11-07 07:52:39,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 07:52:39,585 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 105 [2024-11-07 07:52:39,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 07:52:39,587 INFO L225 Difference]: With dead ends: 127 [2024-11-07 07:52:39,587 INFO L226 Difference]: Without dead ends: 74 [2024-11-07 07:52:39,587 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-07 07:52:39,588 INFO L432 NwaCegarLoop]: 77 mSDtfsCounter, 21 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 07:52:39,588 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 219 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 07:52:39,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2024-11-07 07:52:39,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 60. [2024-11-07 07:52:39,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 42 states have (on average 1.3095238095238095) internal successors, (55), 42 states have internal predecessors, (55), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-07 07:52:39,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 87 transitions. [2024-11-07 07:52:39,598 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 87 transitions. Word has length 105 [2024-11-07 07:52:39,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 07:52:39,599 INFO L471 AbstractCegarLoop]: Abstraction has 60 states and 87 transitions. [2024-11-07 07:52:39,600 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-07 07:52:39,600 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 87 transitions. [2024-11-07 07:52:39,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-07 07:52:39,602 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 07:52:39,602 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 07:52:39,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 07:52:39,603 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 07:52:39,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 07:52:39,603 INFO L85 PathProgramCache]: Analyzing trace with hash -2118133047, now seen corresponding path program 1 times [2024-11-07 07:52:39,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 07:52:39,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62289287] [2024-11-07 07:52:39,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 07:52:39,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 07:52:39,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:52:39,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 07:52:39,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:52:39,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 07:52:39,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:52:39,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 07:52:39,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:52:39,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 07:52:39,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:52:39,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 07:52:39,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:52:39,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 07:52:39,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:52:39,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 07:52:39,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:52:39,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 07:52:39,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:52:39,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 07:52:39,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:52:39,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 07:52:39,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:52:39,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 07:52:39,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:52:39,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 07:52:39,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:52:39,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 07:52:39,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:52:39,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 07:52:39,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:52:39,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-07 07:52:40,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:52:40,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 07:52:40,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:52:40,011 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-07 07:52:40,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 07:52:40,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62289287] [2024-11-07 07:52:40,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62289287] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 07:52:40,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 07:52:40,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 07:52:40,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742729717] [2024-11-07 07:52:40,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 07:52:40,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 07:52:40,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 07:52:40,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 07:52:40,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-07 07:52:40,017 INFO L87 Difference]: Start difference. First operand 60 states and 87 transitions. Second operand has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-07 07:52:40,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 07:52:40,308 INFO L93 Difference]: Finished difference Result 187 states and 270 transitions. [2024-11-07 07:52:40,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 07:52:40,308 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 107 [2024-11-07 07:52:40,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 07:52:40,310 INFO L225 Difference]: With dead ends: 187 [2024-11-07 07:52:40,312 INFO L226 Difference]: Without dead ends: 130 [2024-11-07 07:52:40,313 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-07 07:52:40,314 INFO L432 NwaCegarLoop]: 78 mSDtfsCounter, 73 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 07:52:40,316 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 292 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 07:52:40,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2024-11-07 07:52:40,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 119. [2024-11-07 07:52:40,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 84 states have (on average 1.2857142857142858) internal successors, (108), 84 states have internal predecessors, (108), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-07 07:52:40,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 172 transitions. [2024-11-07 07:52:40,336 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 172 transitions. Word has length 107 [2024-11-07 07:52:40,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 07:52:40,337 INFO L471 AbstractCegarLoop]: Abstraction has 119 states and 172 transitions. [2024-11-07 07:52:40,338 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-07 07:52:40,338 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 172 transitions. [2024-11-07 07:52:40,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-07 07:52:40,340 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 07:52:40,341 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 07:52:40,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 07:52:40,341 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 07:52:40,342 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 07:52:40,342 INFO L85 PathProgramCache]: Analyzing trace with hash -1859967609, now seen corresponding path program 1 times [2024-11-07 07:52:40,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 07:52:40,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218394400] [2024-11-07 07:52:40,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 07:52:40,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 07:52:40,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat