./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/combinations/square_8+soft_float_4-3a.c.cil.c --full-output --witness-type violation_witness --validate ./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/square_8+soft_float_4-3a.c.cil.yml/witness.yml --preprocessor.replace.while.statements.and.if-then-else.statements false --icfgbuilder.size.of.a.code.block SequenceOfStatements --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 03fe66fa Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/combinations/square_8+soft_float_4-3a.c.cil.c ./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/square_8+soft_float_4-3a.c.cil.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --preprocessor.replace.while.statements.and.if-then-else.statements false --icfgbuilder.size.of.a.code.block SequenceOfStatements --- Real Ultimate output --- This is Ultimate 0.2.4-wip.fs.yaml-violation-witnesses-03fe66f-m [2024-08-15 18:11:37,435 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-08-15 18:11:37,533 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-08-15 18:11:37,541 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-08-15 18:11:37,542 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-08-15 18:11:37,573 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-08-15 18:11:37,574 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-08-15 18:11:37,574 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-08-15 18:11:37,575 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-08-15 18:11:37,576 INFO L153 SettingsManager]: * Use memory slicer=true [2024-08-15 18:11:37,576 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-08-15 18:11:37,577 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-08-15 18:11:37,578 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-08-15 18:11:37,581 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-08-15 18:11:37,582 INFO L153 SettingsManager]: * Use SBE=true [2024-08-15 18:11:37,593 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-08-15 18:11:37,594 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-08-15 18:11:37,595 INFO L153 SettingsManager]: * sizeof long=4 [2024-08-15 18:11:37,595 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-08-15 18:11:37,595 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-08-15 18:11:37,595 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-08-15 18:11:37,596 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-08-15 18:11:37,596 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-08-15 18:11:37,596 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-08-15 18:11:37,597 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-08-15 18:11:37,597 INFO L153 SettingsManager]: * sizeof long double=12 [2024-08-15 18:11:37,597 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-08-15 18:11:37,597 INFO L153 SettingsManager]: * Use constant arrays=true [2024-08-15 18:11:37,598 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-08-15 18:11:37,598 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-08-15 18:11:37,598 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-08-15 18:11:37,598 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-08-15 18:11:37,599 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-08-15 18:11:37,599 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-08-15 18:11:37,599 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-08-15 18:11:37,600 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-08-15 18:11:37,600 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-08-15 18:11:37,601 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-08-15 18:11:37,601 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-08-15 18:11:37,601 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-08-15 18:11:37,602 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-08-15 18:11:37,602 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-08-15 18:11:37,602 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-08-15 18:11:37,603 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Replace while statements and if-then-else statements -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder: Size of a code block -> SequenceOfStatements [2024-08-15 18:11:37,889 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-08-15 18:11:37,916 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-08-15 18:11:37,918 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-08-15 18:11:37,920 INFO L270 PluginConnector]: Initializing CDTParser... [2024-08-15 18:11:37,921 INFO L274 PluginConnector]: CDTParser initialized [2024-08-15 18:11:37,923 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/square_8+soft_float_4-3a.c.cil.c [2024-08-15 18:11:39,452 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-08-15 18:11:39,663 INFO L384 CDTParser]: Found 1 translation units. [2024-08-15 18:11:39,664 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/square_8+soft_float_4-3a.c.cil.c [2024-08-15 18:11:39,673 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/11c2c49ab/575fe74243774d6cbe8c2486c75090e7/FLAG13c1a8800 [2024-08-15 18:11:40,038 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/11c2c49ab/575fe74243774d6cbe8c2486c75090e7 [2024-08-15 18:11:40,040 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-08-15 18:11:40,042 INFO L274 PluginConnector]: Witness Parser initialized [2024-08-15 18:11:40,043 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/square_8+soft_float_4-3a.c.cil.yml/witness.yml [2024-08-15 18:11:40,122 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-08-15 18:11:40,123 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-08-15 18:11:40,126 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-08-15 18:11:40,127 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-08-15 18:11:40,133 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-08-15 18:11:40,134 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.08 06:11:40" (1/2) ... [2024-08-15 18:11:40,135 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e6156f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:11:40, skipping insertion in model container [2024-08-15 18:11:40,135 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.08 06:11:40" (1/2) ... [2024-08-15 18:11:40,136 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6dd2c1ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:11:40, skipping insertion in model container [2024-08-15 18:11:40,136 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 15.08 06:11:40" (2/2) ... [2024-08-15 18:11:40,137 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e6156f5 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:11:40, skipping insertion in model container [2024-08-15 18:11:40,137 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 15.08 06:11:40" (2/2) ... [2024-08-15 18:11:40,171 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-08-15 18:11:40,334 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/square_8+soft_float_4-3a.c.cil.c[1995,2008] [2024-08-15 18:11:40,343 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/square_8+soft_float_4-3a.c.cil.c[2364,2377] [2024-08-15 18:11:40,383 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-15 18:11:40,393 INFO L200 MainTranslator]: Completed pre-run [2024-08-15 18:11:40,406 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/square_8+soft_float_4-3a.c.cil.c[1995,2008] [2024-08-15 18:11:40,408 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/square_8+soft_float_4-3a.c.cil.c[2364,2377] [2024-08-15 18:11:40,432 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-15 18:11:40,457 INFO L204 MainTranslator]: Completed translation [2024-08-15 18:11:40,457 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:11:40 WrapperNode [2024-08-15 18:11:40,458 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-08-15 18:11:40,459 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-08-15 18:11:40,459 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-08-15 18:11:40,459 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-08-15 18:11:40,475 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:11:40" (1/1) ... [2024-08-15 18:11:40,475 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:11:40" (1/1) ... [2024-08-15 18:11:40,485 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:11:40" (1/1) ... [2024-08-15 18:11:40,524 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]. [2024-08-15 18:11:40,524 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:11:40" (1/1) ... [2024-08-15 18:11:40,524 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:11:40" (1/1) ... [2024-08-15 18:11:40,543 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:11:40" (1/1) ... [2024-08-15 18:11:40,545 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:11:40" (1/1) ... [2024-08-15 18:11:40,553 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:11:40" (1/1) ... [2024-08-15 18:11:40,559 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-08-15 18:11:40,560 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-08-15 18:11:40,560 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-08-15 18:11:40,560 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-08-15 18:11:40,561 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:11:40" (1/1) ... [2024-08-15 18:11:40,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-08-15 18:11:40,587 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-15 18:11:40,606 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-08-15 18:11:40,609 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-08-15 18:11:40,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-08-15 18:11:40,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-08-15 18:11:40,659 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-08-15 18:11:40,659 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-08-15 18:11:40,659 INFO L138 BoogieDeclarations]: Found implementation of procedure main1 [2024-08-15 18:11:40,660 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-08-15 18:11:40,660 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2024-08-15 18:11:40,661 INFO L138 BoogieDeclarations]: Found implementation of procedure addflt [2024-08-15 18:11:40,661 INFO L138 BoogieDeclarations]: Found implementation of procedure mulflt [2024-08-15 18:11:40,661 INFO L138 BoogieDeclarations]: Found implementation of procedure main2 [2024-08-15 18:11:40,662 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-08-15 18:11:40,662 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2024-08-15 18:11:40,662 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2024-08-15 18:11:40,662 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-08-15 18:11:40,662 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2024-08-15 18:11:40,662 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2024-08-15 18:11:40,662 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2024-08-15 18:11:40,663 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2024-08-15 18:11:40,663 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-08-15 18:11:40,663 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-08-15 18:11:40,663 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2024-08-15 18:11:40,663 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2024-08-15 18:11:40,663 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-08-15 18:11:40,663 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-08-15 18:11:40,663 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-08-15 18:11:40,663 INFO L130 BoogieDeclarations]: Found specification of procedure main1 [2024-08-15 18:11:40,663 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-08-15 18:11:40,664 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2024-08-15 18:11:40,664 INFO L130 BoogieDeclarations]: Found specification of procedure addflt [2024-08-15 18:11:40,664 INFO L130 BoogieDeclarations]: Found specification of procedure mulflt [2024-08-15 18:11:40,664 INFO L130 BoogieDeclarations]: Found specification of procedure main2 [2024-08-15 18:11:40,664 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-08-15 18:11:40,664 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-08-15 18:11:40,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-08-15 18:11:40,664 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-08-15 18:11:40,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-08-15 18:11:40,664 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-08-15 18:11:40,665 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-08-15 18:11:40,782 INFO L273 CfgBuilder]: Building ICFG [2024-08-15 18:11:40,785 INFO L304 CfgBuilder]: Building CFG for each procedure with an implementation [2024-08-15 18:11:41,248 INFO L? ?]: Removed 84 outVars from TransFormulas that were not future-live. [2024-08-15 18:11:41,248 INFO L327 CfgBuilder]: Performing block encoding [2024-08-15 18:11:41,258 INFO L349 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-08-15 18:11:41,258 INFO L354 CfgBuilder]: Removed 0 assume(true) statements. [2024-08-15 18:11:41,259 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 15.08 06:11:41 BoogieIcfgContainer [2024-08-15 18:11:41,259 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-08-15 18:11:41,261 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-08-15 18:11:41,261 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-08-15 18:11:41,265 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-08-15 18:11:41,265 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.08 06:11:40" (1/4) ... [2024-08-15 18:11:41,266 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22ef163f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.08 06:11:41, skipping insertion in model container [2024-08-15 18:11:41,266 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 15.08 06:11:40" (2/4) ... [2024-08-15 18:11:41,266 WARN L100 eAbstractionObserver]: Found a witness in the YAML format. I will only consider traces that are accepted by the witness [2024-08-15 18:11:41,268 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22ef163f and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction VIOLATION_WITNESS 15.08 06:11:41, skipping insertion in model container [2024-08-15 18:11:41,268 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:11:40" (3/4) ... [2024-08-15 18:11:41,268 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22ef163f and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction VIOLATION_WITNESS 15.08 06:11:41, skipping insertion in model container [2024-08-15 18:11:41,268 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 15.08 06:11:41" (4/4) ... [2024-08-15 18:11:41,270 INFO L128 eAbstractionObserver]: Analyzing ICFG square_8+soft_float_4-3a.c.cil.c [2024-08-15 18:11:41,286 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-08-15 18:11:41,287 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-08-15 18:11:41,315 INFO L90 WitnessUtils]: Constructing product of automaton with 118 states and violation witness of the following lengths: [25] [2024-08-15 18:11:41,677 INFO L95 WitnessUtils]: Product has 1037 reachable states. [2024-08-15 18:11:41,696 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-08-15 18:11:41,706 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, 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;@6f7854c3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-15 18:11:41,706 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-08-15 18:11:41,709 INFO L276 IsEmpty]: Start isEmpty. Operand 1037 states and 1482 transitions. [2024-08-15 18:11:41,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-08-15 18:11:41,733 INFO L187 NwaCegarLoop]: Found error trace [2024-08-15 18:11:41,734 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-08-15 18:11:41,734 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [main1Err0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-15 18:11:41,742 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-15 18:11:41,744 INFO L85 PathProgramCache]: Analyzing trace with hash -1456831635, now seen corresponding path program 1 times [2024-08-15 18:11:41,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-15 18:11:41,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908966109] [2024-08-15 18:11:41,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-15 18:11:41,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-15 18:11:41,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:11:42,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-15 18:11:42,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:11:42,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-08-15 18:11:42,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:11:42,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-08-15 18:11:42,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:11:42,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-08-15 18:11:42,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:11:42,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-08-15 18:11:42,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:11:42,178 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-08-15 18:11:42,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-15 18:11:42,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908966109] [2024-08-15 18:11:42,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908966109] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-15 18:11:42,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-15 18:11:42,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-08-15 18:11:42,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530163400] [2024-08-15 18:11:42,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-15 18:11:42,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-08-15 18:11:42,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-15 18:11:42,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-08-15 18:11:42,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-08-15 18:11:42,223 INFO L87 Difference]: Start difference. First operand 1037 states and 1482 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-08-15 18:11:42,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-15 18:11:42,323 INFO L93 Difference]: Finished difference Result 930 states and 1236 transitions. [2024-08-15 18:11:42,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-15 18:11:42,326 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 62 [2024-08-15 18:11:42,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-15 18:11:42,335 INFO L225 Difference]: With dead ends: 930 [2024-08-15 18:11:42,336 INFO L226 Difference]: Without dead ends: 157 [2024-08-15 18:11:42,337 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-08-15 18:11:42,341 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 11 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-08-15 18:11:42,341 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 243 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-08-15 18:11:42,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2024-08-15 18:11:42,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 152. [2024-08-15 18:11:42,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 123 states have (on average 1.3089430894308942) internal successors, (161), 125 states have internal predecessors, (161), 18 states have call successors, (18), 12 states have call predecessors, (18), 10 states have return successors, (17), 14 states have call predecessors, (17), 15 states have call successors, (17) [2024-08-15 18:11:42,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 196 transitions. [2024-08-15 18:11:42,400 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 196 transitions. Word has length 62 [2024-08-15 18:11:42,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-15 18:11:42,401 INFO L495 AbstractCegarLoop]: Abstraction has 152 states and 196 transitions. [2024-08-15 18:11:42,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-08-15 18:11:42,401 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 196 transitions. [2024-08-15 18:11:42,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-08-15 18:11:42,402 INFO L187 NwaCegarLoop]: Found error trace [2024-08-15 18:11:42,403 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-08-15 18:11:42,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-08-15 18:11:42,404 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [main1Err0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-15 18:11:42,404 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-15 18:11:42,404 INFO L85 PathProgramCache]: Analyzing trace with hash -144329681, now seen corresponding path program 1 times [2024-08-15 18:11:42,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-15 18:11:42,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38145626] [2024-08-15 18:11:42,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-15 18:11:42,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-15 18:11:42,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:11:42,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-15 18:11:42,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:11:42,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-08-15 18:11:42,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:11:42,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-08-15 18:11:42,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:11:42,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-08-15 18:11:42,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:11:42,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-08-15 18:11:42,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:11:42,566 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-08-15 18:11:42,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-15 18:11:42,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38145626] [2024-08-15 18:11:42,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38145626] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-15 18:11:42,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-15 18:11:42,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-08-15 18:11:42,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803057587] [2024-08-15 18:11:42,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-15 18:11:42,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-08-15 18:11:42,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-15 18:11:42,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-08-15 18:11:42,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-08-15 18:11:42,572 INFO L87 Difference]: Start difference. First operand 152 states and 196 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-08-15 18:11:42,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-15 18:11:42,610 INFO L93 Difference]: Finished difference Result 152 states and 195 transitions. [2024-08-15 18:11:42,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-15 18:11:42,610 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 63 [2024-08-15 18:11:42,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-15 18:11:42,612 INFO L225 Difference]: With dead ends: 152 [2024-08-15 18:11:42,612 INFO L226 Difference]: Without dead ends: 152 [2024-08-15 18:11:42,613 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-08-15 18:11:42,614 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 0 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-08-15 18:11:42,616 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 184 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-08-15 18:11:42,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2024-08-15 18:11:42,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2024-08-15 18:11:42,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 123 states have (on average 1.3008130081300813) internal successors, (160), 125 states have internal predecessors, (160), 18 states have call successors, (18), 12 states have call predecessors, (18), 10 states have return successors, (17), 14 states have call predecessors, (17), 15 states have call successors, (17) [2024-08-15 18:11:42,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 195 transitions. [2024-08-15 18:11:42,636 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 195 transitions. Word has length 63 [2024-08-15 18:11:42,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-15 18:11:42,636 INFO L495 AbstractCegarLoop]: Abstraction has 152 states and 195 transitions. [2024-08-15 18:11:42,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-08-15 18:11:42,637 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 195 transitions. [2024-08-15 18:11:42,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-08-15 18:11:42,638 INFO L187 NwaCegarLoop]: Found error trace [2024-08-15 18:11:42,638 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-08-15 18:11:42,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-08-15 18:11:42,639 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [main1Err0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-15 18:11:42,639 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-15 18:11:42,639 INFO L85 PathProgramCache]: Analyzing trace with hash 817284336, now seen corresponding path program 1 times [2024-08-15 18:11:42,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-15 18:11:42,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942607040] [2024-08-15 18:11:42,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-15 18:11:42,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-15 18:11:42,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:11:43,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-15 18:11:43,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:11:43,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-08-15 18:11:43,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:11:43,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-08-15 18:11:43,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:11:43,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-08-15 18:11:43,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:11:43,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-08-15 18:11:43,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:11:43,152 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-08-15 18:11:43,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-15 18:11:43,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942607040] [2024-08-15 18:11:43,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942607040] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-15 18:11:43,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [663602754] [2024-08-15 18:11:43,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-15 18:11:43,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-15 18:11:43,155 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-15 18:11:43,158 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-15 18:11:43,162 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-08-15 18:11:43,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:11:43,277 INFO L262 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 15 conjunts are in the unsatisfiable core [2024-08-15 18:11:43,285 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-15 18:11:43,398 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-08-15 18:11:43,400 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-15 18:11:43,605 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-08-15 18:11:43,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [663602754] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-15 18:11:43,606 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-15 18:11:43,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2024-08-15 18:11:43,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253180740] [2024-08-15 18:11:43,606 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-15 18:11:43,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-08-15 18:11:43,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-15 18:11:43,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-08-15 18:11:43,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2024-08-15 18:11:43,608 INFO L87 Difference]: Start difference. First operand 152 states and 195 transitions. Second operand has 16 states, 16 states have (on average 3.3125) internal successors, (53), 12 states have internal predecessors, (53), 4 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (8), 6 states have call predecessors, (8), 4 states have call successors, (8) [2024-08-15 18:11:43,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-15 18:11:43,894 INFO L93 Difference]: Finished difference Result 168 states and 214 transitions. [2024-08-15 18:11:43,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-08-15 18:11:43,895 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.3125) internal successors, (53), 12 states have internal predecessors, (53), 4 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (8), 6 states have call predecessors, (8), 4 states have call successors, (8) Word has length 63 [2024-08-15 18:11:43,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-15 18:11:43,897 INFO L225 Difference]: With dead ends: 168 [2024-08-15 18:11:43,897 INFO L226 Difference]: Without dead ends: 165 [2024-08-15 18:11:43,900 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 128 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2024-08-15 18:11:43,900 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 122 mSDsluCounter, 1072 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 1174 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-08-15 18:11:43,901 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 1174 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-08-15 18:11:43,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2024-08-15 18:11:43,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 146. [2024-08-15 18:11:43,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 119 states have (on average 1.2857142857142858) internal successors, (153), 121 states have internal predecessors, (153), 17 states have call successors, (17), 11 states have call predecessors, (17), 9 states have return successors, (15), 13 states have call predecessors, (15), 14 states have call successors, (15) [2024-08-15 18:11:43,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 185 transitions. [2024-08-15 18:11:43,918 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 185 transitions. Word has length 63 [2024-08-15 18:11:43,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-15 18:11:43,919 INFO L495 AbstractCegarLoop]: Abstraction has 146 states and 185 transitions. [2024-08-15 18:11:43,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.3125) internal successors, (53), 12 states have internal predecessors, (53), 4 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (8), 6 states have call predecessors, (8), 4 states have call successors, (8) [2024-08-15 18:11:43,919 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 185 transitions. [2024-08-15 18:11:43,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-08-15 18:11:43,923 INFO L187 NwaCegarLoop]: Found error trace [2024-08-15 18:11:43,923 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-08-15 18:11:43,942 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-08-15 18:11:44,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-15 18:11:44,124 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [main1Err0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-15 18:11:44,125 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-15 18:11:44,125 INFO L85 PathProgramCache]: Analyzing trace with hash 204892426, now seen corresponding path program 1 times [2024-08-15 18:11:44,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-15 18:11:44,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950673733] [2024-08-15 18:11:44,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-15 18:11:44,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-15 18:11:44,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-15 18:11:44,208 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-08-15 18:11:44,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-15 18:11:44,281 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-08-15 18:11:44,281 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-08-15 18:11:44,283 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2024-08-15 18:11:44,286 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location main1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-08-15 18:11:44,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-08-15 18:11:44,290 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-08-15 18:11:44,295 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2024-08-15 18:11:44,338 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.08 06:11:44 BoogieIcfgContainer [2024-08-15 18:11:44,338 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-08-15 18:11:44,339 INFO L158 Benchmark]: Toolchain (without parser) took 4215.94ms. Allocated memory was 184.5MB in the beginning and 268.4MB in the end (delta: 83.9MB). Free memory was 125.7MB in the beginning and 109.7MB in the end (delta: 15.9MB). Peak memory consumption was 100.4MB. Max. memory is 16.1GB. [2024-08-15 18:11:44,339 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 184.5MB. Free memory is still 148.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-08-15 18:11:44,339 INFO L158 Benchmark]: Witness Parser took 0.13ms. Allocated memory is still 184.5MB. Free memory is still 128.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-08-15 18:11:44,339 INFO L158 Benchmark]: CACSL2BoogieTranslator took 331.76ms. Allocated memory is still 184.5MB. Free memory was 125.7MB in the beginning and 110.6MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-08-15 18:11:44,340 INFO L158 Benchmark]: Boogie Preprocessor took 100.59ms. Allocated memory is still 184.5MB. Free memory was 110.6MB in the beginning and 107.6MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-08-15 18:11:44,340 INFO L158 Benchmark]: IcfgBuilder took 698.96ms. Allocated memory is still 184.5MB. Free memory was 107.6MB in the beginning and 77.8MB in the end (delta: 29.8MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2024-08-15 18:11:44,340 INFO L158 Benchmark]: TraceAbstraction took 3077.09ms. Allocated memory was 184.5MB in the beginning and 268.4MB in the end (delta: 83.9MB). Free memory was 77.4MB in the beginning and 109.7MB in the end (delta: -32.4MB). Peak memory consumption was 52.2MB. Max. memory is 16.1GB. [2024-08-15 18:11:44,341 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 184.5MB. Free memory is still 148.0MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.13ms. Allocated memory is still 184.5MB. Free memory is still 128.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 331.76ms. Allocated memory is still 184.5MB. Free memory was 125.7MB in the beginning and 110.6MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 100.59ms. Allocated memory is still 184.5MB. Free memory was 110.6MB in the beginning and 107.6MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * IcfgBuilder took 698.96ms. Allocated memory is still 184.5MB. Free memory was 107.6MB in the beginning and 77.8MB in the end (delta: 29.8MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * TraceAbstraction took 3077.09ms. Allocated memory was 184.5MB in the beginning and 268.4MB in the end (delta: 83.9MB). Free memory was 77.4MB in the beginning and 109.7MB in the end (delta: -32.4MB). Peak memory consumption was 52.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 60]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 153, overapproximation of bitwiseAnd at line 119. Possible FailurePath: [L309] COND FALSE !(__VERIFIER_nondet_int()) [L312] CALL main2() [L269] unsigned int a ; [L270] unsigned int ma = __VERIFIER_nondet_uint(); [L271] signed char ea = __VERIFIER_nondet_char(); [L272] unsigned int b ; [L273] unsigned int mb = __VERIFIER_nondet_uint(); [L274] signed char eb = __VERIFIER_nondet_char(); [L275] unsigned int r_add1 ; [L276] unsigned int r_add2 ; [L277] unsigned int zero ; [L278] int tmp ; [L279] int tmp___0 ; [L280] int __retres14 ; VAL [ea=127, eb=-127] [L284] CALL, EXPR base2flt(0, 0) VAL [\old(e)=0, \old(m)=0] [L68] unsigned int res ; [L69] unsigned int __retres4 ; VAL [\old(e)=0, \old(m)=0, e=0, m=0] [L72] COND TRUE ! m [L73] __retres4 = 0U VAL [\old(e)=0, \old(m)=0, __retres4=0, e=0] [L123] return (__retres4); VAL [\old(e)=0, \old(m)=0, \result=0, e=0] [L284] RET, EXPR base2flt(0, 0) VAL [ea=127, eb=-127] [L284] zero = base2flt(0, 0) [L285] CALL, EXPR base2flt(ma, ea) VAL [\old(e)=127, \old(m)=33554432] [L68] unsigned int res ; [L69] unsigned int __retres4 ; VAL [\old(e)=127, \old(m)=33554432, e=127, m=33554432] [L72] COND FALSE !(! m) VAL [\old(e)=127, \old(m)=33554432, e=127, m=33554432] [L78] COND FALSE !(m < 1U << 24U) VAL [\old(e)=127, \old(m)=33554432, e=127, m=33554432] [L100] COND TRUE 1 VAL [\old(e)=127, \old(m)=33554432, e=127, m=33554432] [L102] COND TRUE m >= 1U << 25U VAL [\old(e)=127, \old(m)=33554432, e=127, m=33554432] [L107] COND TRUE e >= 127 [L108] __retres4 = 4294967295U VAL [\old(e)=127, \old(m)=33554432, __retres4=4294967295, m=33554432] [L123] return (__retres4); VAL [\old(e)=127, \old(m)=33554432, \result=4294967295, m=33554432] [L285] RET, EXPR base2flt(ma, ea) VAL [ea=127, eb=-127, ma=33554432] [L285] a = base2flt(ma, ea) [L286] CALL, EXPR base2flt(mb, eb) VAL [\old(e)=-127, \old(m)=16777216] [L68] unsigned int res ; [L69] unsigned int __retres4 ; VAL [\old(e)=-127, \old(m)=16777216, e=-127, m=16777216] [L72] COND FALSE !(! m) VAL [\old(e)=-127, \old(m)=16777216, e=-127, m=16777216] [L78] COND FALSE !(m < 1U << 24U) VAL [\old(e)=-127, \old(m)=16777216, e=-127, m=16777216] [L100] COND TRUE 1 VAL [\old(e)=-127, \old(m)=16777216, e=-127, m=16777216] [L102] COND FALSE !(m >= 1U << 25U) VAL [\old(e)=-127, \old(m)=16777216, e=-127, m=16777216] [L119] EXPR m & ~ (1U << 24U) VAL [\old(e)=-127, \old(m)=16777216, e=-127, m=16777216] [L119] EXPR m & ~ (1U << 24U) [L119] EXPR m & ~ (1U << 24U) VAL [\old(e)=-127, \old(m)=16777216, e=-127] [L119] m = m & ~ (1U << 24U) [L120] EXPR m | ((unsigned int )(e + 128) << 24U) [L120] EXPR m | ((unsigned int )(e + 128) << 24U) VAL [\old(e)=-127, \old(m)=16777216] [L120] res = m | ((unsigned int )(e + 128) << 24U) [L121] __retres4 = res VAL [\old(e)=-127, \old(m)=16777216, __retres4=16777216] [L123] return (__retres4); VAL [\old(e)=-127, \old(m)=16777216, \result=16777216] [L286] RET, EXPR base2flt(mb, eb) VAL [a=4294967295, ea=127, eb=-127, ma=33554432, mb=16777216] [L286] b = base2flt(mb, eb) [L287] CALL addflt(a, b) VAL [\old(a)=4294967295, \old(b)=16777216] [L127] unsigned int res ; [L128] unsigned int ma ; [L129] unsigned int mb ; [L130] unsigned int delta ; [L131] int ea ; [L132] int eb ; [L133] unsigned int tmp ; [L134] unsigned int __retres10 ; VAL [\old(a)=4294967295, \old(b)=16777216, a=4294967295, b=16777216] [L137] COND FALSE !(a < b) VAL [\old(a)=4294967295, \old(b)=16777216, a=4294967295, b=16777216] [L144] COND FALSE !(! b) VAL [\old(a)=4294967295, \old(b)=16777216, a=4294967295, b=16777216] [L151] ma = a & ((1U << 24U) - 1U) [L152] ea = (int )(a >> 24U) - 128 VAL [\old(a)=4294967295, \old(b)=16777216, a=4294967295, b=16777216, ea=127, ma=16777215] [L153] EXPR ma | (1U << 24U) VAL [\old(a)=4294967295, \old(b)=16777216, a=4294967295, b=16777216, ea=127, ma=16777215] [L153] EXPR ma | (1U << 24U) [L153] EXPR ma | (1U << 24U) VAL [\old(a)=4294967295, \old(b)=16777216, a=4294967295, b=16777216, ea=127] [L153] ma = ma | (1U << 24U) [L154] mb = b & ((1U << 24U) - 1U) [L155] eb = (int )(b >> 24U) - 128 VAL [\old(a)=4294967295, \old(b)=16777216, a=4294967295, ea=127, eb=-127, ma=16777216, mb=0] [L156] EXPR mb | (1U << 24U) [L156] EXPR mb | (1U << 24U) VAL [\old(a)=4294967295, \old(b)=16777216, a=4294967295, ea=127, eb=-127, ma=16777216] [L156] mb = mb | (1U << 24U) [L157] CALL __VERIFIER_assert(ea >= eb) VAL [\old(cond)=1] [L59] COND FALSE !(!(cond)) VAL [\old(cond)=1] [L157] RET __VERIFIER_assert(ea >= eb) VAL [\old(a)=4294967295, \old(b)=16777216, a=4294967295, ea=127, eb=-127, ma=16777216, mb=16777216] [L158] delta = ea - eb VAL [\old(a)=4294967295, \old(b)=16777216, a=4294967295, delta=254, ea=127, ma=16777216, mb=16777216] [L159] CALL __VERIFIER_assert(delta < sizeof(mb) * 8) VAL [\old(cond)=0] [L59] COND TRUE !(cond) VAL [\old(cond)=0] [L60] reach_error() VAL [\old(cond)=0] - UnprovableResult [Line: 48]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 11 procedures, 139 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 3.0s, OverallIterations: 4, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 136 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 133 mSDsluCounter, 1601 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1273 mSDsCounter, 21 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 215 IncrementalHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 21 mSolverCounterUnsat, 328 mSDtfsCounter, 215 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 175 GetRequests, 154 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1037occurred in iteration=0, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 24 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 315 NumberOfCodeBlocks, 315 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 309 ConstructedInterpolants, 0 QuantifiedInterpolants, 511 SizeOfPredicates, 2 NumberOfNonLiveVariables, 167 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 96/105 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-08-15 18:11:44,377 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/combinations/square_8+soft_float_4-3a.c.cil.c ./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/square_8+soft_float_4-3a.c.cil.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --preprocessor.replace.while.statements.and.if-then-else.statements false --icfgbuilder.size.of.a.code.block SequenceOfStatements --- Real Ultimate output --- This is Ultimate 0.2.4-wip.fs.yaml-violation-witnesses-03fe66f-m [2024-08-15 18:11:46,639 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-08-15 18:11:46,730 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-08-15 18:11:46,735 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-08-15 18:11:46,736 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-08-15 18:11:46,770 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-08-15 18:11:46,770 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-08-15 18:11:46,771 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-08-15 18:11:46,771 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-08-15 18:11:46,772 INFO L153 SettingsManager]: * Use memory slicer=true [2024-08-15 18:11:46,772 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-08-15 18:11:46,772 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-08-15 18:11:46,773 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-08-15 18:11:46,773 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-08-15 18:11:46,773 INFO L153 SettingsManager]: * Use SBE=true [2024-08-15 18:11:46,774 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-08-15 18:11:46,777 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-08-15 18:11:46,777 INFO L153 SettingsManager]: * sizeof long=4 [2024-08-15 18:11:46,777 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-08-15 18:11:46,778 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-08-15 18:11:46,778 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-08-15 18:11:46,778 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-08-15 18:11:46,779 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-08-15 18:11:46,779 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-08-15 18:11:46,779 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-08-15 18:11:46,779 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-08-15 18:11:46,780 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-08-15 18:11:46,780 INFO L153 SettingsManager]: * sizeof long double=12 [2024-08-15 18:11:46,780 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-08-15 18:11:46,781 INFO L153 SettingsManager]: * Use constant arrays=true [2024-08-15 18:11:46,781 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-08-15 18:11:46,782 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-08-15 18:11:46,782 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-08-15 18:11:46,783 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-08-15 18:11:46,783 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-08-15 18:11:46,783 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-08-15 18:11:46,784 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-08-15 18:11:46,784 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-08-15 18:11:46,784 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-08-15 18:11:46,784 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-08-15 18:11:46,785 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-08-15 18:11:46,785 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-08-15 18:11:46,785 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-08-15 18:11:46,785 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-08-15 18:11:46,786 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-08-15 18:11:46,786 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-08-15 18:11:46,786 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Replace while statements and if-then-else statements -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder: Size of a code block -> SequenceOfStatements [2024-08-15 18:11:47,109 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-08-15 18:11:47,133 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-08-15 18:11:47,136 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-08-15 18:11:47,137 INFO L270 PluginConnector]: Initializing CDTParser... [2024-08-15 18:11:47,138 INFO L274 PluginConnector]: CDTParser initialized [2024-08-15 18:11:47,140 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/square_8+soft_float_4-3a.c.cil.c [2024-08-15 18:11:48,741 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-08-15 18:11:49,004 INFO L384 CDTParser]: Found 1 translation units. [2024-08-15 18:11:49,005 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/square_8+soft_float_4-3a.c.cil.c [2024-08-15 18:11:49,021 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ecfc2ff0/8133bfb7700847bfb4d02df1c5259c0c/FLAG41d877352 [2024-08-15 18:11:49,043 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ecfc2ff0/8133bfb7700847bfb4d02df1c5259c0c [2024-08-15 18:11:49,045 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-08-15 18:11:49,046 INFO L274 PluginConnector]: Witness Parser initialized [2024-08-15 18:11:49,047 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/square_8+soft_float_4-3a.c.cil.yml/witness.yml [2024-08-15 18:11:49,140 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-08-15 18:11:49,141 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-08-15 18:11:49,146 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-08-15 18:11:49,147 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-08-15 18:11:49,152 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-08-15 18:11:49,153 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.08 06:11:49" (1/2) ... [2024-08-15 18:11:49,153 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56f56a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:11:49, skipping insertion in model container [2024-08-15 18:11:49,154 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.08 06:11:49" (1/2) ... [2024-08-15 18:11:49,155 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7183dadc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:11:49, skipping insertion in model container [2024-08-15 18:11:49,155 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 15.08 06:11:49" (2/2) ... [2024-08-15 18:11:49,156 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56f56a3 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:11:49, skipping insertion in model container [2024-08-15 18:11:49,156 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 15.08 06:11:49" (2/2) ... [2024-08-15 18:11:49,188 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-08-15 18:11:49,373 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/square_8+soft_float_4-3a.c.cil.c[1995,2008] [2024-08-15 18:11:49,383 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/square_8+soft_float_4-3a.c.cil.c[2364,2377] [2024-08-15 18:11:49,447 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-15 18:11:49,468 INFO L200 MainTranslator]: Completed pre-run [2024-08-15 18:11:49,485 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/square_8+soft_float_4-3a.c.cil.c[1995,2008] [2024-08-15 18:11:49,487 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/square_8+soft_float_4-3a.c.cil.c[2364,2377] [2024-08-15 18:11:49,526 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-15 18:11:49,549 INFO L204 MainTranslator]: Completed translation [2024-08-15 18:11:49,550 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:11:49 WrapperNode [2024-08-15 18:11:49,550 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-08-15 18:11:49,551 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-08-15 18:11:49,552 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-08-15 18:11:49,552 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-08-15 18:11:49,564 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:11:49" (1/1) ... [2024-08-15 18:11:49,564 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:11:49" (1/1) ... [2024-08-15 18:11:49,581 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:11:49" (1/1) ... [2024-08-15 18:11:49,611 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]. [2024-08-15 18:11:49,612 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:11:49" (1/1) ... [2024-08-15 18:11:49,612 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:11:49" (1/1) ... [2024-08-15 18:11:49,626 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:11:49" (1/1) ... [2024-08-15 18:11:49,631 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:11:49" (1/1) ... [2024-08-15 18:11:49,637 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:11:49" (1/1) ... [2024-08-15 18:11:49,640 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-08-15 18:11:49,645 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-08-15 18:11:49,645 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-08-15 18:11:49,645 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-08-15 18:11:49,646 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:11:49" (1/1) ... [2024-08-15 18:11:49,653 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-08-15 18:11:49,665 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-15 18:11:49,681 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-08-15 18:11:49,684 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-08-15 18:11:49,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-08-15 18:11:49,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-08-15 18:11:49,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2024-08-15 18:11:49,738 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-08-15 18:11:49,738 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-08-15 18:11:49,738 INFO L138 BoogieDeclarations]: Found implementation of procedure main1 [2024-08-15 18:11:49,738 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-08-15 18:11:49,738 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2024-08-15 18:11:49,738 INFO L138 BoogieDeclarations]: Found implementation of procedure addflt [2024-08-15 18:11:49,738 INFO L138 BoogieDeclarations]: Found implementation of procedure mulflt [2024-08-15 18:11:49,739 INFO L138 BoogieDeclarations]: Found implementation of procedure main2 [2024-08-15 18:11:49,739 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-08-15 18:11:49,739 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2024-08-15 18:11:49,739 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2024-08-15 18:11:49,739 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-08-15 18:11:49,740 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2024-08-15 18:11:49,740 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2024-08-15 18:11:49,740 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2024-08-15 18:11:49,740 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2024-08-15 18:11:49,741 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-08-15 18:11:49,741 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-08-15 18:11:49,741 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2024-08-15 18:11:49,742 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2024-08-15 18:11:49,742 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-08-15 18:11:49,742 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-08-15 18:11:49,742 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-08-15 18:11:49,743 INFO L130 BoogieDeclarations]: Found specification of procedure main1 [2024-08-15 18:11:49,744 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-08-15 18:11:49,744 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2024-08-15 18:11:49,744 INFO L130 BoogieDeclarations]: Found specification of procedure addflt [2024-08-15 18:11:49,744 INFO L130 BoogieDeclarations]: Found specification of procedure mulflt [2024-08-15 18:11:49,744 INFO L130 BoogieDeclarations]: Found specification of procedure main2 [2024-08-15 18:11:49,744 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-08-15 18:11:49,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-08-15 18:11:49,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-08-15 18:11:49,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-08-15 18:11:49,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2024-08-15 18:11:49,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-08-15 18:11:49,745 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-08-15 18:11:49,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-08-15 18:11:49,881 INFO L273 CfgBuilder]: Building ICFG [2024-08-15 18:11:49,885 INFO L304 CfgBuilder]: Building CFG for each procedure with an implementation [2024-08-15 18:12:02,451 INFO L? ?]: Removed 62 outVars from TransFormulas that were not future-live. [2024-08-15 18:12:02,452 INFO L327 CfgBuilder]: Performing block encoding [2024-08-15 18:12:02,462 INFO L349 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-08-15 18:12:02,462 INFO L354 CfgBuilder]: Removed 0 assume(true) statements. [2024-08-15 18:12:02,463 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 15.08 06:12:02 BoogieIcfgContainer [2024-08-15 18:12:02,463 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-08-15 18:12:02,465 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-08-15 18:12:02,465 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-08-15 18:12:02,468 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-08-15 18:12:02,469 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.08 06:11:49" (1/4) ... [2024-08-15 18:12:02,469 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7618f6ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.08 06:12:02, skipping insertion in model container [2024-08-15 18:12:02,469 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 15.08 06:11:49" (2/4) ... [2024-08-15 18:12:02,470 WARN L100 eAbstractionObserver]: Found a witness in the YAML format. I will only consider traces that are accepted by the witness [2024-08-15 18:12:02,471 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7618f6ed and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction VIOLATION_WITNESS 15.08 06:12:02, skipping insertion in model container [2024-08-15 18:12:02,472 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:11:49" (3/4) ... [2024-08-15 18:12:02,472 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7618f6ed and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction VIOLATION_WITNESS 15.08 06:12:02, skipping insertion in model container [2024-08-15 18:12:02,472 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 15.08 06:12:02" (4/4) ... [2024-08-15 18:12:02,473 INFO L128 eAbstractionObserver]: Analyzing ICFG square_8+soft_float_4-3a.c.cil.c [2024-08-15 18:12:02,492 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-08-15 18:12:02,492 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-08-15 18:12:02,524 INFO L90 WitnessUtils]: Constructing product of automaton with 91 states and violation witness of the following lengths: [25] [2024-08-15 18:12:02,787 INFO L95 WitnessUtils]: Product has 794 reachable states. [2024-08-15 18:12:02,805 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-08-15 18:12:02,814 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, 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;@57d879d1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-15 18:12:02,815 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-08-15 18:12:02,818 INFO L276 IsEmpty]: Start isEmpty. Operand 794 states and 1068 transitions. [2024-08-15 18:12:02,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-08-15 18:12:02,837 INFO L187 NwaCegarLoop]: Found error trace [2024-08-15 18:12:02,838 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-08-15 18:12:02,839 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [main1Err0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-15 18:12:02,846 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-15 18:12:02,847 INFO L85 PathProgramCache]: Analyzing trace with hash 782545498, now seen corresponding path program 1 times [2024-08-15 18:12:02,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-08-15 18:12:02,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2027618906] [2024-08-15 18:12:02,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-15 18:12:02,867 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-08-15 18:12:02,868 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-08-15 18:12:02,871 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-08-15 18:12:02,873 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-08-15 18:12:03,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-15 18:12:03,003 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-08-15 18:12:03,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-15 18:12:03,105 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2024-08-15 18:12:03,107 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-08-15 18:12:03,111 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2024-08-15 18:12:03,113 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location main1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-08-15 18:12:03,121 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2024-08-15 18:12:03,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-08-15 18:12:03,323 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2024-08-15 18:12:03,328 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2024-08-15 18:12:03,363 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.08 06:12:03 BoogieIcfgContainer [2024-08-15 18:12:03,363 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-08-15 18:12:03,366 INFO L158 Benchmark]: Toolchain (without parser) took 14223.05ms. Allocated memory is still 77.6MB. Free memory was 57.1MB in the beginning and 41.1MB in the end (delta: 16.0MB). Peak memory consumption was 16.2MB. Max. memory is 16.1GB. [2024-08-15 18:12:03,367 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 50.3MB. Free memory is still 26.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-08-15 18:12:03,367 INFO L158 Benchmark]: Witness Parser took 0.11ms. Allocated memory is still 77.6MB. Free memory is still 40.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-08-15 18:12:03,368 INFO L158 Benchmark]: CACSL2BoogieTranslator took 405.17ms. Allocated memory is still 77.6MB. Free memory was 56.8MB in the beginning and 41.3MB in the end (delta: 15.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-08-15 18:12:03,368 INFO L158 Benchmark]: Boogie Preprocessor took 92.58ms. Allocated memory is still 77.6MB. Free memory was 41.3MB in the beginning and 38.3MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-08-15 18:12:03,370 INFO L158 Benchmark]: IcfgBuilder took 12818.13ms. Allocated memory is still 77.6MB. Free memory was 38.3MB in the beginning and 37.1MB in the end (delta: 1.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-08-15 18:12:03,371 INFO L158 Benchmark]: TraceAbstraction took 898.68ms. Allocated memory is still 77.6MB. Free memory was 36.5MB in the beginning and 41.1MB in the end (delta: -4.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-08-15 18:12:03,372 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 50.3MB. Free memory is still 26.2MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.11ms. Allocated memory is still 77.6MB. Free memory is still 40.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 405.17ms. Allocated memory is still 77.6MB. Free memory was 56.8MB in the beginning and 41.3MB in the end (delta: 15.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 92.58ms. Allocated memory is still 77.6MB. Free memory was 41.3MB in the beginning and 38.3MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * IcfgBuilder took 12818.13ms. Allocated memory is still 77.6MB. Free memory was 38.3MB in the beginning and 37.1MB in the end (delta: 1.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 898.68ms. Allocated memory is still 77.6MB. Free memory was 36.5MB in the beginning and 41.1MB in the end (delta: -4.6MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 60]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L309] COND FALSE !(__VERIFIER_nondet_int()) [L312] CALL main2() [L269] unsigned int a ; [L270] unsigned int ma = __VERIFIER_nondet_uint(); [L271] signed char ea = __VERIFIER_nondet_char(); [L272] unsigned int b ; [L273] unsigned int mb = __VERIFIER_nondet_uint(); [L274] signed char eb = __VERIFIER_nondet_char(); [L275] unsigned int r_add1 ; [L276] unsigned int r_add2 ; [L277] unsigned int zero ; [L278] int tmp ; [L279] int tmp___0 ; [L280] int __retres14 ; [L284] CALL, EXPR base2flt(0, 0) VAL [\old(e)=0, \old(m)=0] [L68] unsigned int res ; [L69] unsigned int __retres4 ; VAL [\old(e)=0, \old(m)=0, e=0, m=0] [L72] COND TRUE ! m [L73] __retres4 = 0U VAL [\old(e)=0, \old(m)=0, __retres4=0, e=0] [L123] return (__retres4); VAL [\old(e)=0, \old(m)=0, \result=0, e=0] [L284] RET, EXPR base2flt(0, 0) [L284] zero = base2flt(0, 0) [L285] CALL, EXPR base2flt(ma, ea) VAL [\old(e)=127, \old(m)=-2147483648] [L68] unsigned int res ; [L69] unsigned int __retres4 ; VAL [\old(e)=127, \old(m)=-2147483648, e=127, m=-2147483648] [L72] COND FALSE !(! m) VAL [\old(e)=127, \old(m)=-2147483648, e=127, m=-2147483648] [L78] COND FALSE !(m < 1U << 24U) VAL [\old(e)=127, \old(m)=-2147483648, e=127, m=-2147483648] [L100] COND TRUE 1 VAL [\old(e)=127, \old(m)=-2147483648, e=127, m=-2147483648] [L102] COND TRUE m >= 1U << 25U VAL [\old(e)=127, \old(m)=-2147483648, e=127, m=-2147483648] [L107] COND TRUE e >= 127 [L108] __retres4 = 4294967295U VAL [\old(e)=127, \old(m)=-2147483648, __retres4=-1, m=-2147483648] [L123] return (__retres4); VAL [\old(e)=127, \old(m)=-2147483648, \result=-1, m=-2147483648] [L285] RET, EXPR base2flt(ma, ea) VAL [ea=127, ma=-2147483648] [L285] a = base2flt(ma, ea) [L286] CALL, EXPR base2flt(mb, eb) VAL [\old(e)=0, \old(m)=16777216] [L68] unsigned int res ; [L69] unsigned int __retres4 ; VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L72] COND FALSE !(! m) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L78] COND FALSE !(m < 1U << 24U) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L100] COND TRUE 1 VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L102] COND FALSE !(m >= 1U << 25U) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L119] m = m & ~ (1U << 24U) [L120] res = m | ((unsigned int )(e + 128) << 24U) [L121] __retres4 = res VAL [\old(e)=0, \old(m)=16777216, __retres4=-2147483648] [L123] return (__retres4); VAL [\old(e)=0, \old(m)=16777216, \result=-2147483648] [L286] RET, EXPR base2flt(mb, eb) VAL [a=-1, ea=127, eb=0, ma=-2147483648, mb=16777216] [L286] b = base2flt(mb, eb) [L287] CALL addflt(a, b) VAL [\old(a)=-1, \old(b)=-2147483648] [L127] unsigned int res ; [L128] unsigned int ma ; [L129] unsigned int mb ; [L130] unsigned int delta ; [L131] int ea ; [L132] int eb ; [L133] unsigned int tmp ; [L134] unsigned int __retres10 ; VAL [\old(a)=-1, \old(b)=-2147483648, a=-1, b=-2147483648] [L137] COND FALSE !(a < b) VAL [\old(a)=-1, \old(b)=-2147483648, a=-1, b=-2147483648] [L144] COND FALSE !(! b) VAL [\old(a)=-1, \old(b)=-2147483648, a=-1, b=-2147483648] [L151] ma = a & ((1U << 24U) - 1U) [L152] ea = (int )(a >> 24U) - 128 [L153] ma = ma | (1U << 24U) [L154] mb = b & ((1U << 24U) - 1U) [L155] eb = (int )(b >> 24U) - 128 [L156] mb = mb | (1U << 24U) VAL [\old(a)=-1, \old(b)=-2147483648, a=-1, ea=127, eb=0, ma=33554431, mb=16777216] [L157] CALL __VERIFIER_assert(ea >= eb) VAL [\old(cond)=1] [L59] COND FALSE !(!(cond)) VAL [\old(cond)=1] [L157] RET __VERIFIER_assert(ea >= eb) VAL [\old(a)=-1, \old(b)=-2147483648, a=-1, ea=127, eb=0, ma=33554431, mb=16777216] [L158] delta = ea - eb VAL [\old(a)=-1, \old(b)=-2147483648, a=-1, delta=127, ea=127, ma=33554431, mb=16777216] [L159] CALL __VERIFIER_assert(delta < sizeof(mb) * 8) VAL [\old(cond)=0] [L59] COND TRUE !(cond) VAL [\old(cond)=0] [L60] reach_error() VAL [\old(cond)=0] - UnprovableResult [Line: 48]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 12 procedures, 112 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 1, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.3s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=794occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-08-15 18:12:03,454 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE