./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/loop-invariants/linear-inequality-inv-b.c --full-output --witness-type violation_witness --validate ./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/linear-inequality-inv-b.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 26998269 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/loop-invariants/linear-inequality-inv-b.c ./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/linear-inequality-inv-b.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-2699826-m [2024-08-14 14:30:47,503 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-08-14 14:30:47,569 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-08-14 14:30:47,573 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-08-14 14:30:47,575 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-08-14 14:30:47,599 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-08-14 14:30:47,601 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-08-14 14:30:47,601 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-08-14 14:30:47,601 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-08-14 14:30:47,602 INFO L153 SettingsManager]: * Use memory slicer=true [2024-08-14 14:30:47,602 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-08-14 14:30:47,603 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-08-14 14:30:47,603 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-08-14 14:30:47,605 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-08-14 14:30:47,605 INFO L153 SettingsManager]: * Use SBE=true [2024-08-14 14:30:47,605 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-08-14 14:30:47,606 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-08-14 14:30:47,606 INFO L153 SettingsManager]: * sizeof long=4 [2024-08-14 14:30:47,606 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-08-14 14:30:47,606 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-08-14 14:30:47,606 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-08-14 14:30:47,610 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-08-14 14:30:47,610 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-08-14 14:30:47,610 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-08-14 14:30:47,611 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-08-14 14:30:47,611 INFO L153 SettingsManager]: * sizeof long double=12 [2024-08-14 14:30:47,611 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-08-14 14:30:47,611 INFO L153 SettingsManager]: * Use constant arrays=true [2024-08-14 14:30:47,611 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-08-14 14:30:47,611 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-08-14 14:30:47,611 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-08-14 14:30:47,612 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-08-14 14:30:47,612 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-08-14 14:30:47,612 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-08-14 14:30:47,612 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-08-14 14:30:47,612 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-08-14 14:30:47,612 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-08-14 14:30:47,612 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-08-14 14:30:47,613 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-08-14 14:30:47,613 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-08-14 14:30:47,613 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-08-14 14:30:47,613 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-08-14 14:30:47,613 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-08-14 14:30:47,614 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Replace while statements and if-then-else statements -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder: Size of a code block -> SequenceOfStatements [2024-08-14 14:30:47,782 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-08-14 14:30:47,800 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-08-14 14:30:47,802 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-08-14 14:30:47,804 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-08-14 14:30:47,804 INFO L274 PluginConnector]: Witness Parser initialized [2024-08-14 14:30:47,805 INFO L431 ainManager$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/linear-inequality-inv-b.yml/witness.yml [2024-08-14 14:30:47,853 INFO L270 PluginConnector]: Initializing CDTParser... [2024-08-14 14:30:47,854 INFO L274 PluginConnector]: CDTParser initialized [2024-08-14 14:30:47,854 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invariants/linear-inequality-inv-b.c [2024-08-14 14:30:49,083 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-08-14 14:30:49,211 INFO L384 CDTParser]: Found 1 translation units. [2024-08-14 14:30:49,211 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invariants/linear-inequality-inv-b.c [2024-08-14 14:30:49,223 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/023e1c314/e3b4c9b991c240adb9a6b0e0a21d4ad9/FLAG6ddbcec0d [2024-08-14 14:30:49,634 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/023e1c314/e3b4c9b991c240adb9a6b0e0a21d4ad9 [2024-08-14 14:30:49,635 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-08-14 14:30:49,636 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-08-14 14:30:49,638 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-08-14 14:30:49,638 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-08-14 14:30:49,642 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-08-14 14:30:49,642 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:30:47" (1/2) ... [2024-08-14 14:30:49,643 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@694419a3 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:30:49, skipping insertion in model container [2024-08-14 14:30:49,644 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:30:47" (1/2) ... [2024-08-14 14:30:49,645 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4e7e436e and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:30:49, skipping insertion in model container [2024-08-14 14:30:49,645 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 02:30:49" (2/2) ... [2024-08-14 14:30:49,645 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@694419a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:30:49, skipping insertion in model container [2024-08-14 14:30:49,645 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 02:30:49" (2/2) ... [2024-08-14 14:30:49,660 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-08-14 14:30:49,810 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invariants/linear-inequality-inv-b.c[860,873] [2024-08-14 14:30:49,815 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invariants/linear-inequality-inv-b.c[916,929] [2024-08-14 14:30:49,816 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-14 14:30:49,822 INFO L200 MainTranslator]: Completed pre-run [2024-08-14 14:30:49,832 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invariants/linear-inequality-inv-b.c[860,873] [2024-08-14 14:30:49,833 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invariants/linear-inequality-inv-b.c[916,929] [2024-08-14 14:30:49,833 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-14 14:30:49,846 INFO L204 MainTranslator]: Completed translation [2024-08-14 14:30:49,846 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:30:49 WrapperNode [2024-08-14 14:30:49,846 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-08-14 14:30:49,847 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-08-14 14:30:49,847 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-08-14 14:30:49,847 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-08-14 14:30:49,858 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:30:49" (1/1) ... [2024-08-14 14:30:49,858 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:30:49" (1/1) ... [2024-08-14 14:30:49,862 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:30:49" (1/1) ... [2024-08-14 14:30:49,875 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]. [2024-08-14 14:30:49,876 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:30:49" (1/1) ... [2024-08-14 14:30:49,877 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:30:49" (1/1) ... [2024-08-14 14:30:49,880 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:30:49" (1/1) ... [2024-08-14 14:30:49,880 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:30:49" (1/1) ... [2024-08-14 14:30:49,881 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:30:49" (1/1) ... [2024-08-14 14:30:49,882 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-08-14 14:30:49,883 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-08-14 14:30:49,883 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-08-14 14:30:49,883 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-08-14 14:30:49,884 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:30:49" (1/1) ... [2024-08-14 14:30:49,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-08-14 14:30:49,900 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-14 14:30:49,912 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) [2024-08-14 14:30:49,914 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 [2024-08-14 14:30:49,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-08-14 14:30:49,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-08-14 14:30:49,945 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-08-14 14:30:49,946 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-08-14 14:30:49,946 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-08-14 14:30:49,946 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-08-14 14:30:49,946 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-08-14 14:30:49,946 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2024-08-14 14:30:49,946 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-08-14 14:30:49,946 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-08-14 14:30:49,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-08-14 14:30:49,946 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-08-14 14:30:49,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-08-14 14:30:49,947 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-08-14 14:30:49,947 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-08-14 14:30:49,998 INFO L273 CfgBuilder]: Building ICFG [2024-08-14 14:30:50,000 INFO L304 CfgBuilder]: Building CFG for each procedure with an implementation [2024-08-14 14:30:50,094 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-08-14 14:30:50,094 INFO L327 CfgBuilder]: Performing block encoding [2024-08-14 14:30:50,100 INFO L349 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-08-14 14:30:50,100 INFO L354 CfgBuilder]: Removed 0 assume(true) statements. [2024-08-14 14:30:50,101 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.08 02:30:50 BoogieIcfgContainer [2024-08-14 14:30:50,101 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-08-14 14:30:50,102 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-08-14 14:30:50,102 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-08-14 14:30:50,105 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-08-14 14:30:50,105 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:30:47" (1/4) ... [2024-08-14 14:30:50,105 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6268407 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction VIOLATION_WITNESS 14.08 02:30:50, skipping insertion in model container [2024-08-14 14:30:50,105 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.08 02:30:49" (2/4) ... [2024-08-14 14:30:50,106 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6268407 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.08 02:30:50, skipping insertion in model container [2024-08-14 14:30:50,106 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:30:49" (3/4) ... [2024-08-14 14:30:50,106 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6268407 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.08 02:30:50, skipping insertion in model container [2024-08-14 14:30:50,106 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.08 02:30:50" (4/4) ... [2024-08-14 14:30:50,107 INFO L119 eAbstractionObserver]: Analyzing ICFG linear-inequality-inv-b.c [2024-08-14 14:30:50,107 WARN L130 eAbstractionObserver]: Found a witness in the YAML format. I will only consider traces that are accepted by the witness [2024-08-14 14:30:50,121 INFO L221 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-08-14 14:30:50,121 INFO L180 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-08-14 14:30:50,141 INFO L92 WitnessUtils]: Constructing product of automaton with 24 states and violation witness of the following lengths: [6] [2024-08-14 14:30:50,143 INFO L82 GeneralOperation]: Start removeDeadEnds. Operand has 24 states, 17 states have (on average 1.411764705882353) internal successors, (24), 19 states have internal predecessors, (24), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-08-14 14:30:50,191 INFO L88 GeneralOperation]: Finished removeDeadEnds. Reduced from 60 states to 16 states. [2024-08-14 14:30:50,208 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-08-14 14:30:50,213 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;@6e96dd0c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-14 14:30:50,215 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-08-14 14:30:50,216 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2024-08-14 14:30:50,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-08-14 14:30:50,219 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:30:50,220 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-08-14 14:30:50,220 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr1ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:30:50,224 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:30:50,224 INFO L85 PathProgramCache]: Analyzing trace with hash -1623716258, now seen corresponding path program 1 times [2024-08-14 14:30:50,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 14:30:50,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241640726] [2024-08-14 14:30:50,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:30:50,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 14:30:50,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:50,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-14 14:30:50,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:50,339 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-08-14 14:30:50,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 14:30:50,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241640726] [2024-08-14 14:30:50,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241640726] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-14 14:30:50,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-14 14:30:50,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-08-14 14:30:50,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324104274] [2024-08-14 14:30:50,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-14 14:30:50,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-08-14 14:30:50,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 14:30:50,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-08-14 14:30:50,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-08-14 14:30:50,372 INFO L87 Difference]: Start difference. First operand 16 states. Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-08-14 14:30:50,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-14 14:30:50,376 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2024-08-14 14:30:50,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 14:30:50,377 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2024-08-14 14:30:50,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-14 14:30:50,378 INFO L225 Difference]: With dead ends: 16 [2024-08-14 14:30:50,378 INFO L226 Difference]: Without dead ends: 16 [2024-08-14 14:30:50,379 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-08-14 14:30:50,383 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-08-14 14:30:50,385 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-08-14 14:30:50,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2024-08-14 14:30:50,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2024-08-14 14:30:50,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 12 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-08-14 14:30:50,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2024-08-14 14:30:50,409 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 14 [2024-08-14 14:30:50,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-14 14:30:50,410 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2024-08-14 14:30:50,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-08-14 14:30:50,410 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2024-08-14 14:30:50,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-08-14 14:30:50,411 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:30:50,411 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-08-14 14:30:50,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-08-14 14:30:50,412 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr1ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:30:50,413 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:30:50,413 INFO L85 PathProgramCache]: Analyzing trace with hash 1204377653, now seen corresponding path program 1 times [2024-08-14 14:30:50,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 14:30:50,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813823910] [2024-08-14 14:30:50,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:30:50,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 14:30:50,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:50,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-14 14:30:50,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:50,578 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-14 14:30:50,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 14:30:50,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813823910] [2024-08-14 14:30:50,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813823910] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-14 14:30:50,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [416656777] [2024-08-14 14:30:50,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:30:50,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 14:30:50,579 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-14 14:30:50,581 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) [2024-08-14 14:30:50,583 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-08-14 14:30:50,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:50,629 INFO L262 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 5 conjunts are in the unsatisfiable core [2024-08-14 14:30:50,633 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-14 14:30:50,680 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-14 14:30:50,680 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-14 14:30:50,969 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-14 14:30:50,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [416656777] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-14 14:30:50,971 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-14 14:30:50,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2024-08-14 14:30:50,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714499302] [2024-08-14 14:30:50,972 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-14 14:30:50,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-08-14 14:30:50,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 14:30:50,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-08-14 14:30:50,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-08-14 14:30:50,974 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-08-14 14:30:50,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-14 14:30:50,997 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2024-08-14 14:30:50,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-14 14:30:50,997 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2024-08-14 14:30:50,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-14 14:30:50,998 INFO L225 Difference]: With dead ends: 21 [2024-08-14 14:30:50,998 INFO L226 Difference]: Without dead ends: 20 [2024-08-14 14:30:50,999 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-08-14 14:30:51,000 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 4 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-08-14 14:30:51,000 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 35 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-08-14 14:30:51,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2024-08-14 14:30:51,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 19. [2024-08-14 14:30:51,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 15 states have internal predecessors, (16), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-08-14 14:30:51,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2024-08-14 14:30:51,005 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 15 [2024-08-14 14:30:51,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-14 14:30:51,005 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2024-08-14 14:30:51,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-08-14 14:30:51,005 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2024-08-14 14:30:51,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-08-14 14:30:51,006 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:30:51,006 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-08-14 14:30:51,018 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-08-14 14:30:51,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 14:30:51,207 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr1ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:30:51,207 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:30:51,207 INFO L85 PathProgramCache]: Analyzing trace with hash -568713893, now seen corresponding path program 2 times [2024-08-14 14:30:51,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 14:30:51,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854837727] [2024-08-14 14:30:51,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:30:51,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 14:30:51,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-14 14:30:51,228 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-08-14 14:30:51,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-14 14:30:51,262 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-08-14 14:30:51,262 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-08-14 14:30:51,263 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location mainErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2024-08-14 14:30:51,265 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-08-14 14:30:51,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-08-14 14:30:51,267 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1] [2024-08-14 14:30:51,270 INFO L196 ceAbstractionStarter]: Computing trace abstraction results [2024-08-14 14:30:51,281 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.08 02:30:51 BoogieIcfgContainer [2024-08-14 14:30:51,282 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-08-14 14:30:51,284 INFO L158 Benchmark]: Toolchain (without parser) took 1646.21ms. Allocated memory was 186.6MB in the beginning and 245.4MB in the end (delta: 58.7MB). Free memory was 124.7MB in the beginning and 200.1MB in the end (delta: -75.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-08-14 14:30:51,285 INFO L158 Benchmark]: Witness Parser took 0.10ms. Allocated memory is still 100.7MB. Free memory is still 52.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-08-14 14:30:51,286 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 100.7MB. Free memory was 50.6MB in the beginning and 50.5MB in the end (delta: 109.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-08-14 14:30:51,286 INFO L158 Benchmark]: CACSL2BoogieTranslator took 208.69ms. Allocated memory is still 186.6MB. Free memory was 124.7MB in the beginning and 152.8MB in the end (delta: -28.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-08-14 14:30:51,287 INFO L158 Benchmark]: Boogie Preprocessor took 35.17ms. Allocated memory is still 186.6MB. Free memory was 152.8MB in the beginning and 151.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-08-14 14:30:51,288 INFO L158 Benchmark]: IcfgBuilder took 218.05ms. Allocated memory is still 186.6MB. Free memory was 150.7MB in the beginning and 139.3MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-08-14 14:30:51,288 INFO L158 Benchmark]: TraceAbstraction took 1179.49ms. Allocated memory was 186.6MB in the beginning and 245.4MB in the end (delta: 58.7MB). Free memory was 139.3MB in the beginning and 200.1MB in the end (delta: -60.8MB). Peak memory consumption was 764.2kB. Max. memory is 16.1GB. [2024-08-14 14:30:51,289 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.10ms. Allocated memory is still 100.7MB. Free memory is still 52.8MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.14ms. Allocated memory is still 100.7MB. Free memory was 50.6MB in the beginning and 50.5MB in the end (delta: 109.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 208.69ms. Allocated memory is still 186.6MB. Free memory was 124.7MB in the beginning and 152.8MB in the end (delta: -28.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.17ms. Allocated memory is still 186.6MB. Free memory was 152.8MB in the beginning and 151.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 218.05ms. Allocated memory is still 186.6MB. Free memory was 150.7MB in the beginning and 139.3MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1179.49ms. Allocated memory was 186.6MB in the beginning and 245.4MB in the end (delta: 58.7MB). Free memory was 139.3MB in the beginning and 200.1MB in the end (delta: -60.8MB). Peak memory consumption was 764.2kB. 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: 25]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L12] unsigned char n = __VERIFIER_nondet_uchar(); [L13] COND FALSE !(n == 0) VAL [n=2] [L16] unsigned char v = 0; [L17] unsigned char s = 0; [L18] unsigned int i = 0; VAL [i=0, n=2, s=0, v=0] [L19] COND TRUE i < n VAL [i=0, n=2, s=0, v=0] [L20] v = __VERIFIER_nondet_uchar() [L21] s += v [L22] ++i VAL [i=1, n=2, s=255, v=255] [L19] COND TRUE i < n VAL [i=1, n=2, s=255, v=255] [L20] v = __VERIFIER_nondet_uchar() [L21] s += v [L22] ++i VAL [i=2, n=2, s=256, v=1] [L19] COND FALSE !(i < n) VAL [s=256, v=1] [L24] COND TRUE s < v [L25] reach_error() - UnprovableResult [Line: 29]: 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 4 procedures, 27 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 3, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4 mSDsluCounter, 49 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 22 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 27 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 40 GetRequests, 34 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=2, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 62 NumberOfCodeBlocks, 62 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 55 ConstructedInterpolants, 0 QuantifiedInterpolants, 232 SizeOfPredicates, 0 NumberOfNonLiveVariables, 47 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 1/7 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! [2024-08-14 14:30:51,312 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 Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE