./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_array_list_erase_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- 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/aws-c-common/aws_array_list_erase_harness_negated.i', '-s', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-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', '64bit', '--witnessprinter.graph.data.programhash', '5aa4df3bf07993e90fd6085d301926d2fe237de2ffd3a09881087885f4330551'] 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/aws-c-common/aws_array_list_erase_harness_negated.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-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 64bit --witnessprinter.graph.data.programhash 5aa4df3bf07993e90fd6085d301926d2fe237de2ffd3a09881087885f4330551 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 11:37:50,494 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 11:37:50,584 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-07 11:37:50,591 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 11:37:50,591 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 11:37:50,612 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 11:37:50,613 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 11:37:50,613 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 11:37:50,614 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 11:37:50,614 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 11:37:50,614 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 11:37:50,614 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 11:37:50,614 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 11:37:50,614 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 11:37:50,614 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 11:37:50,614 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 11:37:50,614 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 11:37:50,614 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 11:37:50,615 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 11:37:50,615 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 11:37:50,615 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 11:37:50,615 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 11:37:50,615 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 11:37:50,615 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 11:37:50,615 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 11:37:50,615 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 11:37:50,615 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 11:37:50,615 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 11:37:50,615 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 11:37:50,615 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 11:37:50,615 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 11:37:50,616 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 11:37:50,616 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 11:37:50,616 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 11:37:50,616 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 11:37:50,616 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 11:37:50,616 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 11:37:50,616 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 11:37:50,617 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 11:37:50,619 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5aa4df3bf07993e90fd6085d301926d2fe237de2ffd3a09881087885f4330551 [2024-11-07 11:37:50,960 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 11:37:50,967 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 11:37:50,968 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 11:37:50,969 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 11:37:50,970 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 11:37:50,973 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_erase_harness_negated.i [2024-11-07 11:37:52,283 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 11:37:52,715 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 11:37:52,716 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_erase_harness_negated.i [2024-11-07 11:37:52,750 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/73fb31a37/52931c4933234a61acba2e2be1ce5cdf/FLAG2085f0d84 [2024-11-07 11:37:52,843 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/73fb31a37/52931c4933234a61acba2e2be1ce5cdf [2024-11-07 11:37:52,846 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 11:37:52,847 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 11:37:52,848 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 11:37:52,848 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 11:37:52,852 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 11:37:52,853 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:37:52" (1/1) ... [2024-11-07 11:37:52,853 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3756f8e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:37:52, skipping insertion in model container [2024-11-07 11:37:52,853 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:37:52" (1/1) ... [2024-11-07 11:37:52,934 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 11:37:53,232 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/aws-c-common/aws_array_list_erase_harness_negated.i[4494,4507] [2024-11-07 11:37:53,241 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/aws-c-common/aws_array_list_erase_harness_negated.i[4554,4567] [2024-11-07 11:37:53,994 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:37:53,995 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:37:53,995 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:37:53,996 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:37:53,997 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:37:54,007 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:37:54,008 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:37:54,009 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:37:54,010 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:37:54,011 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:37:54,012 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:37:54,012 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:37:54,013 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:37:54,407 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:37:54,407 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:37:54,412 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:37:54,412 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:37:54,415 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:37:54,415 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:37:54,418 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:37:54,423 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:37:54,473 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:37:54,475 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:37:54,479 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 11:37:54,506 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 11:37:54,519 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/aws-c-common/aws_array_list_erase_harness_negated.i[4494,4507] [2024-11-07 11:37:54,520 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/aws-c-common/aws_array_list_erase_harness_negated.i[4554,4567] [2024-11-07 11:37:54,603 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:37:54,603 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:37:54,603 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:37:54,604 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:37:54,605 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:37:54,613 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:37:54,613 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:37:54,615 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:37:54,616 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:37:54,618 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:37:54,619 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:37:54,619 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:37:54,619 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:37:54,699 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:37:54,699 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:37:54,701 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:37:54,701 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:37:54,702 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:37:54,703 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:37:54,704 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:37:54,708 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:37:54,716 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7793-7804] [2024-11-07 11:37:54,735 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:37:54,736 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:37:54,737 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 11:37:55,024 INFO L204 MainTranslator]: Completed translation [2024-11-07 11:37:55,024 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:37:55 WrapperNode [2024-11-07 11:37:55,024 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 11:37:55,026 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 11:37:55,026 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 11:37:55,026 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 11:37:55,031 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:37:55" (1/1) ... [2024-11-07 11:37:55,123 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:37:55" (1/1) ... [2024-11-07 11:37:55,206 INFO L138 Inliner]: procedures = 678, calls = 1677, calls flagged for inlining = 52, calls inlined = 11, statements flattened = 734 [2024-11-07 11:37:55,207 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 11:37:55,207 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 11:37:55,207 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 11:37:55,207 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 11:37:55,220 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:37:55" (1/1) ... [2024-11-07 11:37:55,220 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:37:55" (1/1) ... [2024-11-07 11:37:55,227 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:37:55" (1/1) ... [2024-11-07 11:37:55,320 INFO L175 MemorySlicer]: Split 331 memory accesses to 6 slices as follows [238, 2, 6, 9, 3, 73]. 72 percent of accesses are in the largest equivalence class. The 24 initializations are split as follows [6, 2, 0, 5, 1, 10]. The 243 writes are split as follows [232, 0, 2, 2, 1, 6]. [2024-11-07 11:37:55,321 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:37:55" (1/1) ... [2024-11-07 11:37:55,321 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:37:55" (1/1) ... [2024-11-07 11:37:55,365 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:37:55" (1/1) ... [2024-11-07 11:37:55,369 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:37:55" (1/1) ... [2024-11-07 11:37:55,380 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:37:55" (1/1) ... [2024-11-07 11:37:55,395 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:37:55" (1/1) ... [2024-11-07 11:37:55,418 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 11:37:55,419 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 11:37:55,419 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 11:37:55,419 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 11:37:55,420 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:37:55" (1/1) ... [2024-11-07 11:37:55,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 11:37:55,447 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 11:37:55,462 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 11:37:55,468 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 11:37:55,489 INFO L130 BoogieDeclarations]: Found specification of procedure memmove_impl [2024-11-07 11:37:55,490 INFO L138 BoogieDeclarations]: Found implementation of procedure memmove_impl [2024-11-07 11:37:55,490 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-07 11:37:55,490 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2024-11-07 11:37:55,490 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2024-11-07 11:37:55,490 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2024-11-07 11:37:55,490 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2024-11-07 11:37:55,492 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-07 11:37:55,492 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-07 11:37:55,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-07 11:37:55,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-07 11:37:55,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-07 11:37:55,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-07 11:37:55,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-07 11:37:55,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-07 11:37:55,492 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-07 11:37:55,492 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-07 11:37:55,492 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-07 11:37:55,492 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-07 11:37:55,492 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-07 11:37:55,492 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-07 11:37:55,492 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-11-07 11:37:55,492 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-11-07 11:37:55,493 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-07 11:37:55,493 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-07 11:37:55,493 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-07 11:37:55,493 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 11:37:55,493 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint8_t [2024-11-07 11:37:55,493 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint8_t [2024-11-07 11:37:55,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-07 11:37:55,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-07 11:37:55,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-07 11:37:55,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-07 11:37:55,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-07 11:37:55,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-07 11:37:55,493 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 11:37:55,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 11:37:55,493 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-07 11:37:55,493 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-07 11:37:55,493 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-11-07 11:37:55,493 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-11-07 11:37:55,493 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2024-11-07 11:37:55,493 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2024-11-07 11:37:55,493 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-11-07 11:37:55,493 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-11-07 11:37:55,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-07 11:37:55,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-07 11:37:55,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-07 11:37:55,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-07 11:37:55,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-07 11:37:55,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-07 11:37:55,494 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2024-11-07 11:37:55,494 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2024-11-07 11:37:55,494 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-07 11:37:55,494 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-07 11:37:55,494 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_pop_back [2024-11-07 11:37:55,494 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_pop_back [2024-11-07 11:37:55,494 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-07 11:37:55,494 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-07 11:37:55,494 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-07 11:37:55,494 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-07 11:37:55,494 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-07 11:37:55,494 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-07 11:37:55,494 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-07 11:37:55,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-07 11:37:55,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-07 11:37:55,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-07 11:37:55,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-07 11:37:55,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-07 11:37:55,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-07 11:37:55,494 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-07 11:37:55,494 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-07 11:37:55,494 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-11-07 11:37:55,494 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-11-07 11:37:55,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-07 11:37:55,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-07 11:37:55,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-07 11:37:55,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-07 11:37:55,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-07 11:37:55,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-07 11:37:55,496 INFO L130 BoogieDeclarations]: Found specification of procedure my_memmove [2024-11-07 11:37:55,496 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memmove [2024-11-07 11:37:55,496 INFO L130 BoogieDeclarations]: Found specification of procedure memset_impl [2024-11-07 11:37:55,496 INFO L138 BoogieDeclarations]: Found implementation of procedure memset_impl [2024-11-07 11:37:55,496 INFO L130 BoogieDeclarations]: Found specification of procedure my_memset [2024-11-07 11:37:55,496 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memset [2024-11-07 11:37:55,496 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2024-11-07 11:37:55,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2024-11-07 11:37:55,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 11:37:55,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-07 11:37:55,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-07 11:37:55,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-07 11:37:55,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-07 11:37:55,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-07 11:37:55,794 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 11:37:55,796 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 11:38:02,728 INFO L? ?]: Removed 142 outVars from TransFormulas that were not future-live. [2024-11-07 11:38:02,728 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 11:38:02,749 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 11:38:02,749 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-07 11:38:02,749 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:38:02 BoogieIcfgContainer [2024-11-07 11:38:02,749 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 11:38:02,753 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 11:38:02,753 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 11:38:02,758 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 11:38:02,758 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 11:37:52" (1/3) ... [2024-11-07 11:38:02,759 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70c50ee7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:38:02, skipping insertion in model container [2024-11-07 11:38:02,760 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:37:55" (2/3) ... [2024-11-07 11:38:02,760 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70c50ee7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:38:02, skipping insertion in model container [2024-11-07 11:38:02,760 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:38:02" (3/3) ... [2024-11-07 11:38:02,761 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_array_list_erase_harness_negated.i [2024-11-07 11:38:02,777 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 11:38:02,778 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-07 11:38:02,842 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 11:38:02,853 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;@2c0e9e1f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 11:38:02,853 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-07 11:38:02,858 INFO L276 IsEmpty]: Start isEmpty. Operand has 254 states, 144 states have (on average 1.1875) internal successors, (171), 145 states have internal predecessors, (171), 88 states have call successors, (88), 20 states have call predecessors, (88), 20 states have return successors, (88), 88 states have call predecessors, (88), 88 states have call successors, (88) [2024-11-07 11:38:02,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-07 11:38:02,871 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 11:38:02,872 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:38:02,872 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 11:38:02,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:38:02,878 INFO L85 PathProgramCache]: Analyzing trace with hash 939077441, now seen corresponding path program 1 times [2024-11-07 11:38:02,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:38:02,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133899401] [2024-11-07 11:38:02,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:38:02,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:38:08,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:38:08,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 11:38:08,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:38:08,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-07 11:38:08,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:38:08,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-07 11:38:08,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:38:09,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 11:38:09,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:38:09,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-07 11:38:09,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:38:09,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-07 11:38:09,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:38:09,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-07 11:38:09,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:38:09,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 11:38:09,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:38:09,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-07 11:38:09,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:38:09,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-07 11:38:09,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:38:09,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-07 11:38:09,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:38:09,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-07 11:38:09,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:38:09,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-07 11:38:09,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:38:09,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-07 11:38:09,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:38:09,636 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-07 11:38:09,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:38:09,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133899401] [2024-11-07 11:38:09,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133899401] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:38:09,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:38:09,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 11:38:09,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103341759] [2024-11-07 11:38:09,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:38:09,645 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 11:38:09,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:38:09,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 11:38:09,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 11:38:09,669 INFO L87 Difference]: Start difference. First operand has 254 states, 144 states have (on average 1.1875) internal successors, (171), 145 states have internal predecessors, (171), 88 states have call successors, (88), 20 states have call predecessors, (88), 20 states have return successors, (88), 88 states have call predecessors, (88), 88 states have call successors, (88) Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (16), 4 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-07 11:38:13,781 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-07 11:38:18,214 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.43s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-07 11:38:25,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 11:38:25,242 INFO L93 Difference]: Finished difference Result 545 states and 839 transitions. [2024-11-07 11:38:25,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 11:38:25,245 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (16), 4 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 87 [2024-11-07 11:38:25,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 11:38:25,254 INFO L225 Difference]: With dead ends: 545 [2024-11-07 11:38:25,254 INFO L226 Difference]: Without dead ends: 295 [2024-11-07 11:38:25,259 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-07 11:38:25,262 INFO L432 NwaCegarLoop]: 237 mSDtfsCounter, 159 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 256 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 256 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.9s IncrementalHoareTripleChecker+Time [2024-11-07 11:38:25,262 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 392 Invalid, 631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [256 Valid, 373 Invalid, 2 Unknown, 0 Unchecked, 14.9s Time] [2024-11-07 11:38:25,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2024-11-07 11:38:25,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 249. [2024-11-07 11:38:25,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 140 states have (on average 1.1785714285714286) internal successors, (165), 141 states have internal predecessors, (165), 88 states have call successors, (88), 20 states have call predecessors, (88), 20 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2024-11-07 11:38:25,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 340 transitions. [2024-11-07 11:38:25,335 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 340 transitions. Word has length 87 [2024-11-07 11:38:25,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 11:38:25,335 INFO L471 AbstractCegarLoop]: Abstraction has 249 states and 340 transitions. [2024-11-07 11:38:25,336 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (16), 4 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-07 11:38:25,336 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 340 transitions. [2024-11-07 11:38:25,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-07 11:38:25,339 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 11:38:25,340 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:38:25,340 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 11:38:25,340 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 11:38:25,340 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:38:25,341 INFO L85 PathProgramCache]: Analyzing trace with hash -1387993283, now seen corresponding path program 1 times [2024-11-07 11:38:25,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:38:25,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556067680] [2024-11-07 11:38:25,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:38:25,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:38:29,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:38:33,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 11:38:33,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:38:33,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-07 11:38:33,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:38:33,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-07 11:38:33,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:38:33,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 11:38:33,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:38:33,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-07 11:38:33,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:38:33,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-07 11:38:33,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:38:33,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-07 11:38:34,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:38:34,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 11:38:34,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:38:34,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-07 11:38:34,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:38:34,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-07 11:38:34,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:38:34,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-07 11:38:34,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:38:34,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-07 11:38:34,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:38:34,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-07 11:38:34,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:38:34,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-07 11:38:34,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:38:34,390 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2024-11-07 11:38:34,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:38:34,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556067680] [2024-11-07 11:38:34,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556067680] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:38:34,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:38:34,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-07 11:38:34,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897010468] [2024-11-07 11:38:34,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:38:34,394 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-07 11:38:34,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:38:34,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-07 11:38:34,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-07 11:38:34,399 INFO L87 Difference]: Start difference. First operand 249 states and 340 transitions. Second operand has 8 states, 7 states have (on average 5.0) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (16), 4 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-07 11:38:38,481 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-07 11:38:42,880 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.40s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-07 11:39:03,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 11:39:03,140 INFO L93 Difference]: Finished difference Result 303 states and 439 transitions. [2024-11-07 11:39:03,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 11:39:03,141 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.0) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (16), 4 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) Word has length 87 [2024-11-07 11:39:03,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 11:39:03,145 INFO L225 Difference]: With dead ends: 303 [2024-11-07 11:39:03,145 INFO L226 Difference]: Without dead ends: 301 [2024-11-07 11:39:03,146 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2024-11-07 11:39:03,147 INFO L432 NwaCegarLoop]: 230 mSDtfsCounter, 168 mSDsluCounter, 814 mSDsCounter, 0 mSdLazyCounter, 1132 mSolverCounterSat, 247 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 1044 SdHoareTripleChecker+Invalid, 1381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 247 IncrementalHoareTripleChecker+Valid, 1132 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.8s IncrementalHoareTripleChecker+Time [2024-11-07 11:39:03,147 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 1044 Invalid, 1381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [247 Valid, 1132 Invalid, 2 Unknown, 0 Unchecked, 25.8s Time] [2024-11-07 11:39:03,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2024-11-07 11:39:03,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 256. [2024-11-07 11:39:03,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 144 states have (on average 1.1736111111111112) internal successors, (169), 146 states have internal predecessors, (169), 89 states have call successors, (89), 21 states have call predecessors, (89), 22 states have return successors, (106), 88 states have call predecessors, (106), 88 states have call successors, (106) [2024-11-07 11:39:03,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 364 transitions. [2024-11-07 11:39:03,192 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 364 transitions. Word has length 87 [2024-11-07 11:39:03,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 11:39:03,194 INFO L471 AbstractCegarLoop]: Abstraction has 256 states and 364 transitions. [2024-11-07 11:39:03,195 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.0) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (16), 4 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-07 11:39:03,195 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 364 transitions. [2024-11-07 11:39:03,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-07 11:39:03,198 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 11:39:03,198 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:39:03,199 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 11:39:03,199 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 11:39:03,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:39:03,199 INFO L85 PathProgramCache]: Analyzing trace with hash 481193347, now seen corresponding path program 1 times [2024-11-07 11:39:03,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:39:03,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409664186] [2024-11-07 11:39:03,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:39:03,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:39:07,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:39:09,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 11:39:09,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:39:09,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-07 11:39:09,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:39:09,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-07 11:39:09,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:39:09,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 11:39:09,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:39:09,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-07 11:39:09,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:39:09,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-07 11:39:09,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:39:10,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-07 11:39:10,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:39:10,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 11:39:10,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:39:10,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-07 11:39:10,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:39:10,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-07 11:39:10,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:39:10,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-07 11:39:10,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:39:10,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-07 11:39:10,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:39:10,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-07 11:39:10,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:39:10,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-07 11:39:10,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:39:11,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 11:39:11,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:39:11,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 11:39:11,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:39:11,301 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2024-11-07 11:39:11,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:39:11,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409664186] [2024-11-07 11:39:11,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409664186] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:39:11,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:39:11,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-07 11:39:11,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707379406] [2024-11-07 11:39:11,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:39:11,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-07 11:39:11,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:39:11,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-07 11:39:11,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-11-07 11:39:11,305 INFO L87 Difference]: Start difference. First operand 256 states and 364 transitions. Second operand has 11 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 7 states have internal predecessors, (47), 6 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (16), 6 states have call predecessors, (16), 5 states have call successors, (16) [2024-11-07 11:39:15,388 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-07 11:39:19,803 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.41s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers []