./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_92-evilcollapse_racing.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-02-07_10-47-16.files/SV-COMP24_unreach-call/28-race_reach_92-evilcollapse_racing.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 958ec4d9 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/goblint-regression/28-race_reach_92-evilcollapse_racing.i ./goblint.2024-02-07_10-47-16.files/SV-COMP24_unreach-call/28-race_reach_92-evilcollapse_racing.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 --witnessparser.only.consider.loop.invariants false --- Real Ultimate output --- This is Ultimate 0.2.4-dev-958ec4d-m [2024-02-07 14:54:46,783 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-02-07 14:54:46,846 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-02-07 14:54:46,853 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-02-07 14:54:46,853 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-02-07 14:54:46,877 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-02-07 14:54:46,878 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-02-07 14:54:46,878 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-02-07 14:54:46,878 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-02-07 14:54:46,879 INFO L153 SettingsManager]: * Use memory slicer=true [2024-02-07 14:54:46,879 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-02-07 14:54:46,879 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-02-07 14:54:46,879 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-02-07 14:54:46,880 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-02-07 14:54:46,880 INFO L153 SettingsManager]: * Use SBE=true [2024-02-07 14:54:46,880 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-02-07 14:54:46,880 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-02-07 14:54:46,881 INFO L153 SettingsManager]: * sizeof long=4 [2024-02-07 14:54:46,881 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-02-07 14:54:46,881 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-02-07 14:54:46,881 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-02-07 14:54:46,885 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-02-07 14:54:46,885 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-02-07 14:54:46,885 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-02-07 14:54:46,888 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-02-07 14:54:46,888 INFO L153 SettingsManager]: * sizeof long double=12 [2024-02-07 14:54:46,888 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-02-07 14:54:46,889 INFO L153 SettingsManager]: * Use constant arrays=true [2024-02-07 14:54:46,889 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-02-07 14:54:46,890 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-02-07 14:54:46,890 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-02-07 14:54:46,890 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-02-07 14:54:46,891 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-07 14:54:46,891 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-02-07 14:54:46,891 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-02-07 14:54:46,891 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-02-07 14:54:46,891 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-02-07 14:54:46,891 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-02-07 14:54:46,891 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-02-07 14:54:46,891 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-02-07 14:54:46,892 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-02-07 14:54:46,892 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-02-07 14:54:46,892 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-02-07 14:54:46,892 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-02-07 14:54:47,092 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-02-07 14:54:47,108 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-02-07 14:54:47,110 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-02-07 14:54:47,111 INFO L270 PluginConnector]: Initializing CDTParser... [2024-02-07 14:54:47,111 INFO L274 PluginConnector]: CDTParser initialized [2024-02-07 14:54:47,112 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_92-evilcollapse_racing.i [2024-02-07 14:54:48,279 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-02-07 14:54:48,547 INFO L384 CDTParser]: Found 1 translation units. [2024-02-07 14:54:48,548 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_92-evilcollapse_racing.i [2024-02-07 14:54:48,572 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7acd2090a/36a9d02375b34b929ec51bd0ae53601d/FLAG4a0696700 [2024-02-07 14:54:48,586 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7acd2090a/36a9d02375b34b929ec51bd0ae53601d [2024-02-07 14:54:48,589 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-02-07 14:54:48,589 INFO L274 PluginConnector]: Witness Parser initialized [2024-02-07 14:54:48,590 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-02-07_10-47-16.files/SV-COMP24_unreach-call/28-race_reach_92-evilcollapse_racing.yml/witness.yml [2024-02-07 14:54:48,664 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-02-07 14:54:48,665 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-02-07 14:54:48,667 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-02-07 14:54:48,667 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-02-07 14:54:48,671 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-02-07 14:54:48,671 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 02:54:48" (1/2) ... [2024-02-07 14:54:48,672 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a18ab62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:54:48, skipping insertion in model container [2024-02-07 14:54:48,672 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 02:54:48" (1/2) ... [2024-02-07 14:54:48,674 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1a6fdf53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:54:48, skipping insertion in model container [2024-02-07 14:54:48,674 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 02:54:48" (2/2) ... [2024-02-07 14:54:48,674 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a18ab62 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:54:48, skipping insertion in model container [2024-02-07 14:54:48,675 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 02:54:48" (2/2) ... [2024-02-07 14:54:48,675 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-02-07 14:54:48,753 INFO L74 edCorrectnessWitness]: Found the following entries in the witness: [2024-02-07 14:54:48,754 INFO L76 edCorrectnessWitness]: Location invariant before [L1058-L1058] j <= 9 [2024-02-07 14:54:48,754 INFO L76 edCorrectnessWitness]: Location invariant before [L1073-L1073] ((((((((((((((((((((((((i == 19 || i == 18) || i == 17) || i == 16) || i == 15) || i == 14) || i == 13) || i == 12) || i == 11) || i == 10) || i == 9) || i == 8) || i == 7) || i == 6) || i == 5) || i == 4) || i == 3) || i == 2) || i == 1) || (0 == i && i == 0)) || (25 <= i && i <= 9999)) || i == 24) || i == 23) || i == 22) || i == 21) || i == 20 [2024-02-07 14:54:48,754 INFO L76 edCorrectnessWitness]: Location invariant before [L1050-L1050] j <= 9 [2024-02-07 14:54:48,754 INFO L76 edCorrectnessWitness]: Location invariant before [L1065-L1065] (0 <= i) && (i <= 9) [2024-02-07 14:54:48,754 INFO L76 edCorrectnessWitness]: Location invariant after [L1072-L1072] ((((((((((((((((((((((((i == 14 || i == 13) || i == 12) || i == 11) || i == 10) || i == 9) || i == 8) || i == 7) || i == 6) || i == 5) || i == 4) || i == 3) || i == 2) || i == 1) || (0 == i && i == 0)) || (25 <= i && i <= 9999)) || i == 24) || i == 23) || i == 22) || i == 21) || i == 20) || i == 19) || i == 18) || i == 17) || i == 16) || i == 15 [2024-02-07 14:54:48,754 INFO L76 edCorrectnessWitness]: Location invariant before [L1024-L1024] (0 <= x) && (x <= 261) [2024-02-07 14:54:48,754 INFO L76 edCorrectnessWitness]: Location invariant before [L1067-L1067] ((0 <= i) && (i <= 9)) && (((((((6 <= j && j <= 29) || j == 5) || j == 4) || j == 3) || j == 2) || j == 1) || (0 == j && j == 0)) [2024-02-07 14:54:48,754 INFO L76 edCorrectnessWitness]: Location invariant before [L1037-L1037] 0 <= hvalue [2024-02-07 14:54:48,754 INFO L76 edCorrectnessWitness]: Location invariant before [L1066-L1066] (0 <= i) && (i <= 9) [2024-02-07 14:54:48,754 INFO L76 edCorrectnessWitness]: Location invariant after [L1073-L1073] ((((((((((((((((((((((((i == 19 || i == 18) || i == 17) || i == 16) || i == 15) || i == 14) || i == 13) || i == 12) || i == 11) || i == 10) || i == 9) || i == 8) || i == 7) || i == 6) || i == 5) || i == 4) || i == 3) || i == 2) || i == 1) || (0 == i && i == 0)) || (25 <= i && i <= 9999)) || i == 24) || i == 23) || i == 22) || i == 21) || i == 20 [2024-02-07 14:54:48,754 INFO L76 edCorrectnessWitness]: Location invariant before [L1072-L1072] ((((((((((((((((((((((((i == 14 || i == 13) || i == 12) || i == 11) || i == 10) || i == 9) || i == 8) || i == 7) || i == 6) || i == 5) || i == 4) || i == 3) || i == 2) || i == 1) || (0 == i && i == 0)) || (25 <= i && i <= 9999)) || i == 24) || i == 23) || i == 22) || i == 21) || i == 20) || i == 19) || i == 18) || i == 17) || i == 16) || i == 15 [2024-02-07 14:54:48,755 INFO L76 edCorrectnessWitness]: Location invariant after [L1067-L1067] ((0 <= i) && (i <= 9)) && (((((((6 <= j && j <= 29) || j == 5) || j == 4) || j == 3) || j == 2) || j == 1) || (0 == j && j == 0)) [2024-02-07 14:54:48,809 INFO L178 MainTranslator]: Built tables and reachable declarations [2024-02-07 14:54:49,157 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_92-evilcollapse_racing.i[47038,47051] [2024-02-07 14:54:49,169 WARN L1556 CHandler]: Possible shadowing of function new [2024-02-07 14:54:49,169 WARN L1556 CHandler]: Possible shadowing of function new [2024-02-07 14:54:49,169 WARN L1556 CHandler]: Possible shadowing of function new [2024-02-07 14:54:49,170 WARN L1556 CHandler]: Possible shadowing of function new [2024-02-07 14:54:49,200 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-07 14:54:49,222 INFO L203 MainTranslator]: Completed pre-run [2024-02-07 14:54:49,251 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_92-evilcollapse_racing.i[47038,47051] Start Parsing Local [2024-02-07 14:54:49,298 WARN L1556 CHandler]: Possible shadowing of function new [2024-02-07 14:54:49,299 WARN L1556 CHandler]: Possible shadowing of function new [2024-02-07 14:54:49,300 WARN L1556 CHandler]: Possible shadowing of function new [2024-02-07 14:54:49,300 WARN L1556 CHandler]: Possible shadowing of function new Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-02-07 14:54:49,344 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-07 14:54:49,403 INFO L207 MainTranslator]: Completed translation [2024-02-07 14:54:49,404 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:54:49 WrapperNode [2024-02-07 14:54:49,404 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-02-07 14:54:49,406 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-02-07 14:54:49,406 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-02-07 14:54:49,407 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-02-07 14:54:49,414 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:54:49" (1/1) ... [2024-02-07 14:54:49,440 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:54:49" (1/1) ... [2024-02-07 14:54:49,481 INFO L138 Inliner]: procedures = 279, calls = 55, calls flagged for inlining = 11, calls inlined = 12, statements flattened = 246 [2024-02-07 14:54:49,481 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-02-07 14:54:49,482 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-02-07 14:54:49,482 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-02-07 14:54:49,482 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-02-07 14:54:49,491 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:54:49" (1/1) ... [2024-02-07 14:54:49,491 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:54:49" (1/1) ... [2024-02-07 14:54:49,508 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:54:49" (1/1) ... [2024-02-07 14:54:49,539 INFO L175 MemorySlicer]: Split 32 memory accesses to 4 slices as follows [2, 23, 5, 2]. 72 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 0, 5, 0]. The 15 writes are split as follows [0, 14, 0, 1]. [2024-02-07 14:54:49,539 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:54:49" (1/1) ... [2024-02-07 14:54:49,540 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:54:49" (1/1) ... [2024-02-07 14:54:49,548 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:54:49" (1/1) ... [2024-02-07 14:54:49,571 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:54:49" (1/1) ... [2024-02-07 14:54:49,573 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:54:49" (1/1) ... [2024-02-07 14:54:49,574 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:54:49" (1/1) ... [2024-02-07 14:54:49,578 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-02-07 14:54:49,579 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-02-07 14:54:49,579 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-02-07 14:54:49,579 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-02-07 14:54:49,580 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:54:49" (1/1) ... [2024-02-07 14:54:49,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-07 14:54:49,590 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-07 14:54:49,623 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-02-07 14:54:49,649 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-02-07 14:54:49,666 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-02-07 14:54:49,666 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-02-07 14:54:49,666 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-02-07 14:54:49,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-02-07 14:54:49,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-02-07 14:54:49,667 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-02-07 14:54:49,667 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-02-07 14:54:49,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-02-07 14:54:49,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-02-07 14:54:49,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-02-07 14:54:49,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-02-07 14:54:49,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-02-07 14:54:49,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-02-07 14:54:49,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-02-07 14:54:49,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-02-07 14:54:49,668 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-02-07 14:54:49,668 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-02-07 14:54:49,668 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-02-07 14:54:49,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-02-07 14:54:49,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-02-07 14:54:49,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-02-07 14:54:49,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-02-07 14:54:49,670 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-02-07 14:54:49,670 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-02-07 14:54:49,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-02-07 14:54:49,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-02-07 14:54:49,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-02-07 14:54:49,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-02-07 14:54:49,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-02-07 14:54:49,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-02-07 14:54:49,673 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-02-07 14:54:49,837 INFO L244 CfgBuilder]: Building ICFG [2024-02-07 14:54:49,838 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-02-07 14:54:50,138 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-02-07 14:54:50,139 INFO L293 CfgBuilder]: Performing block encoding [2024-02-07 14:54:50,286 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-02-07 14:54:50,286 INFO L320 CfgBuilder]: Removed 16 assume(true) statements. [2024-02-07 14:54:50,286 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.02 02:54:50 BoogieIcfgContainer [2024-02-07 14:54:50,287 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-02-07 14:54:50,288 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-02-07 14:54:50,288 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-02-07 14:54:50,291 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-02-07 14:54:50,291 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.02 02:54:48" (1/4) ... [2024-02-07 14:54:50,291 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e5df3dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 02:54:50, skipping insertion in model container [2024-02-07 14:54:50,292 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 02:54:48" (2/4) ... [2024-02-07 14:54:50,292 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e5df3dd and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 07.02 02:54:50, skipping insertion in model container [2024-02-07 14:54:50,292 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:54:49" (3/4) ... [2024-02-07 14:54:50,292 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e5df3dd and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 07.02 02:54:50, skipping insertion in model container [2024-02-07 14:54:50,292 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.02 02:54:50" (4/4) ... [2024-02-07 14:54:50,293 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_92-evilcollapse_racing.i [2024-02-07 14:54:50,307 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-02-07 14:54:50,307 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2024-02-07 14:54:50,307 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-02-07 14:54:50,453 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-02-07 14:54:50,505 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 66 places, 80 transitions, 167 flow [2024-02-07 14:54:50,541 INFO L124 PetriNetUnfolderBase]: 17/84 cut-off events. [2024-02-07 14:54:50,542 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-02-07 14:54:50,544 INFO L83 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 84 events. 17/84 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 192 event pairs, 0 based on Foata normal form. 0/53 useless extension candidates. Maximal degree in co-relation 57. Up to 4 conditions per place. [2024-02-07 14:54:50,544 INFO L82 GeneralOperation]: Start removeDead. Operand has 66 places, 80 transitions, 167 flow [2024-02-07 14:54:50,547 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 66 places, 79 transitions, 165 flow [2024-02-07 14:54:50,554 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-02-07 14:54:50,559 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;@1bd0d420, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-02-07 14:54:50,559 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2024-02-07 14:54:50,561 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-02-07 14:54:50,561 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2024-02-07 14:54:50,561 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-07 14:54:50,562 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 14:54:50,562 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-02-07 14:54:50,562 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 12 more)] === [2024-02-07 14:54:50,566 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 14:54:50,566 INFO L85 PathProgramCache]: Analyzing trace with hash 687882, now seen corresponding path program 1 times [2024-02-07 14:54:50,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 14:54:50,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197853397] [2024-02-07 14:54:50,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 14:54:50,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 14:54:50,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 14:54:50,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 14:54:50,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 14:54:50,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197853397] [2024-02-07 14:54:50,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197853397] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 14:54:50,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 14:54:50,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-02-07 14:54:50,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840264348] [2024-02-07 14:54:50,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 14:54:50,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-07 14:54:50,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 14:54:50,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-07 14:54:50,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-07 14:54:50,765 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 80 [2024-02-07 14:54:50,767 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 79 transitions, 165 flow. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:54:50,767 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 14:54:50,768 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 80 [2024-02-07 14:54:50,768 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 14:54:50,959 INFO L124 PetriNetUnfolderBase]: 138/414 cut-off events. [2024-02-07 14:54:50,959 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-02-07 14:54:50,960 INFO L83 FinitePrefix]: Finished finitePrefix Result has 712 conditions, 414 events. 138/414 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1898 event pairs, 114 based on Foata normal form. 50/401 useless extension candidates. Maximal degree in co-relation 641. Up to 287 conditions per place. [2024-02-07 14:54:50,963 INFO L140 encePairwiseOnDemand]: 64/80 looper letters, 46 selfloop transitions, 2 changer transitions 0/74 dead transitions. [2024-02-07 14:54:50,964 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 74 transitions, 251 flow [2024-02-07 14:54:50,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-07 14:54:50,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-07 14:54:50,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 140 transitions. [2024-02-07 14:54:50,974 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5833333333333334 [2024-02-07 14:54:50,975 INFO L175 Difference]: Start difference. First operand has 66 places, 79 transitions, 165 flow. Second operand 3 states and 140 transitions. [2024-02-07 14:54:50,976 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 74 transitions, 251 flow [2024-02-07 14:54:50,978 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 74 transitions, 251 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-02-07 14:54:50,980 INFO L231 Difference]: Finished difference. Result has 69 places, 69 transitions, 159 flow [2024-02-07 14:54:50,982 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=143, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=159, PETRI_PLACES=69, PETRI_TRANSITIONS=69} [2024-02-07 14:54:50,984 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, 3 predicate places. [2024-02-07 14:54:50,985 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 69 transitions, 159 flow [2024-02-07 14:54:50,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:54:50,985 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 14:54:50,985 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-02-07 14:54:50,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-02-07 14:54:50,986 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 12 more)] === [2024-02-07 14:54:50,986 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 14:54:50,986 INFO L85 PathProgramCache]: Analyzing trace with hash -981419858, now seen corresponding path program 1 times [2024-02-07 14:54:50,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 14:54:50,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95613555] [2024-02-07 14:54:50,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 14:54:50,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 14:54:51,004 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2024-02-07 14:54:51,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [275026075] [2024-02-07 14:54:51,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 14:54:51,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-02-07 14:54:51,006 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-07 14:54:51,007 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) [2024-02-07 14:54:51,035 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-02-07 14:54:51,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 14:54:51,100 INFO L262 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 7 conjunts are in the unsatisfiable core [2024-02-07 14:54:51,104 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-02-07 14:54:51,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 14:54:51,127 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-02-07 14:54:51,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 14:54:51,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95613555] [2024-02-07 14:54:51,128 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-02-07 14:54:51,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [275026075] [2024-02-07 14:54:51,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [275026075] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 14:54:51,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 14:54:51,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-07 14:54:51,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939446398] [2024-02-07 14:54:51,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 14:54:51,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-07 14:54:51,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 14:54:51,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-07 14:54:51,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-07 14:54:51,140 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 80 [2024-02-07 14:54:51,141 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 69 transitions, 159 flow. Second operand has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:54:51,141 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 14:54:51,141 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 80 [2024-02-07 14:54:51,141 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 14:54:51,364 INFO L124 PetriNetUnfolderBase]: 138/413 cut-off events. [2024-02-07 14:54:51,364 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-02-07 14:54:51,367 INFO L83 FinitePrefix]: Finished finitePrefix Result has 721 conditions, 413 events. 138/413 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1899 event pairs, 114 based on Foata normal form. 0/353 useless extension candidates. Maximal degree in co-relation 697. Up to 288 conditions per place. [2024-02-07 14:54:51,369 INFO L140 encePairwiseOnDemand]: 75/80 looper letters, 45 selfloop transitions, 4 changer transitions 0/74 dead transitions. [2024-02-07 14:54:51,369 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 74 transitions, 267 flow [2024-02-07 14:54:51,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-07 14:54:51,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-07 14:54:51,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 150 transitions. [2024-02-07 14:54:51,375 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46875 [2024-02-07 14:54:51,376 INFO L175 Difference]: Start difference. First operand has 69 places, 69 transitions, 159 flow. Second operand 4 states and 150 transitions. [2024-02-07 14:54:51,376 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 74 transitions, 267 flow [2024-02-07 14:54:51,377 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 74 transitions, 265 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-02-07 14:54:51,379 INFO L231 Difference]: Finished difference. Result has 73 places, 71 transitions, 181 flow [2024-02-07 14:54:51,379 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=157, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=181, PETRI_PLACES=73, PETRI_TRANSITIONS=71} [2024-02-07 14:54:51,380 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, 7 predicate places. [2024-02-07 14:54:51,380 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 71 transitions, 181 flow [2024-02-07 14:54:51,383 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:54:51,383 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 14:54:51,383 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1] [2024-02-07 14:54:51,417 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-02-07 14:54:51,613 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 [2024-02-07 14:54:51,614 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 12 more)] === [2024-02-07 14:54:51,615 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 14:54:51,615 INFO L85 PathProgramCache]: Analyzing trace with hash -359241403, now seen corresponding path program 1 times [2024-02-07 14:54:51,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 14:54:51,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861368173] [2024-02-07 14:54:51,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 14:54:51,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 14:54:51,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 14:54:51,665 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 14:54:51,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 14:54:51,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861368173] [2024-02-07 14:54:51,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861368173] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 14:54:51,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 14:54:51,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-07 14:54:51,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368825882] [2024-02-07 14:54:51,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 14:54:51,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-07 14:54:51,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 14:54:51,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-07 14:54:51,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-07 14:54:51,669 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 80 [2024-02-07 14:54:51,670 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 71 transitions, 181 flow. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:54:51,670 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 14:54:51,670 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 80 [2024-02-07 14:54:51,670 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 14:54:51,814 INFO L124 PetriNetUnfolderBase]: 138/418 cut-off events. [2024-02-07 14:54:51,814 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-02-07 14:54:51,815 INFO L83 FinitePrefix]: Finished finitePrefix Result has 745 conditions, 418 events. 138/418 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1906 event pairs, 114 based on Foata normal form. 2/361 useless extension candidates. Maximal degree in co-relation 705. Up to 291 conditions per place. [2024-02-07 14:54:51,816 INFO L140 encePairwiseOnDemand]: 77/80 looper letters, 44 selfloop transitions, 3 changer transitions 0/75 dead transitions. [2024-02-07 14:54:51,816 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 75 transitions, 295 flow [2024-02-07 14:54:51,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-07 14:54:51,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-07 14:54:51,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 127 transitions. [2024-02-07 14:54:51,817 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5291666666666667 [2024-02-07 14:54:51,817 INFO L175 Difference]: Start difference. First operand has 73 places, 71 transitions, 181 flow. Second operand 3 states and 127 transitions. [2024-02-07 14:54:51,818 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 75 transitions, 295 flow [2024-02-07 14:54:51,819 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 75 transitions, 291 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-07 14:54:51,820 INFO L231 Difference]: Finished difference. Result has 74 places, 73 transitions, 204 flow [2024-02-07 14:54:51,820 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=177, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=204, PETRI_PLACES=74, PETRI_TRANSITIONS=73} [2024-02-07 14:54:51,820 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, 8 predicate places. [2024-02-07 14:54:51,821 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 73 transitions, 204 flow [2024-02-07 14:54:51,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:54:51,821 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 14:54:51,821 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-02-07 14:54:51,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-02-07 14:54:51,821 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 12 more)] === [2024-02-07 14:54:51,822 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 14:54:51,822 INFO L85 PathProgramCache]: Analyzing trace with hash -359243850, now seen corresponding path program 1 times [2024-02-07 14:54:51,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 14:54:51,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984924893] [2024-02-07 14:54:51,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 14:54:51,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 14:54:51,842 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2024-02-07 14:54:51,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1488523896] [2024-02-07 14:54:51,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 14:54:51,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-02-07 14:54:51,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-07 14:54:51,844 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-02-07 14:54:51,872 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-02-07 14:54:51,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 14:54:51,954 INFO L262 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 9 conjunts are in the unsatisfiable core [2024-02-07 14:54:51,955 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-02-07 14:54:51,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 14:54:51,995 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-02-07 14:54:51,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 14:54:51,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984924893] [2024-02-07 14:54:51,996 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-02-07 14:54:51,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1488523896] [2024-02-07 14:54:51,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1488523896] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 14:54:51,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 14:54:51,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-02-07 14:54:51,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201294805] [2024-02-07 14:54:51,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 14:54:51,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-02-07 14:54:51,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 14:54:51,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-02-07 14:54:51,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-02-07 14:54:52,005 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 80 [2024-02-07 14:54:52,005 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 73 transitions, 204 flow. Second operand has 6 states, 6 states have (on average 25.166666666666668) internal successors, (151), 6 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:54:52,005 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 14:54:52,005 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 80 [2024-02-07 14:54:52,005 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 14:54:52,459 INFO L124 PetriNetUnfolderBase]: 138/423 cut-off events. [2024-02-07 14:54:52,459 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2024-02-07 14:54:52,460 INFO L83 FinitePrefix]: Finished finitePrefix Result has 776 conditions, 423 events. 138/423 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1940 event pairs, 114 based on Foata normal form. 4/366 useless extension candidates. Maximal degree in co-relation 707. Up to 278 conditions per place. [2024-02-07 14:54:52,462 INFO L140 encePairwiseOnDemand]: 71/80 looper letters, 45 selfloop transitions, 10 changer transitions 0/79 dead transitions. [2024-02-07 14:54:52,462 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 79 transitions, 344 flow [2024-02-07 14:54:52,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-02-07 14:54:52,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-02-07 14:54:52,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 196 transitions. [2024-02-07 14:54:52,463 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4083333333333333 [2024-02-07 14:54:52,463 INFO L175 Difference]: Start difference. First operand has 74 places, 73 transitions, 204 flow. Second operand 6 states and 196 transitions. [2024-02-07 14:54:52,464 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 79 transitions, 344 flow [2024-02-07 14:54:52,465 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 79 transitions, 341 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-02-07 14:54:52,466 INFO L231 Difference]: Finished difference. Result has 78 places, 74 transitions, 245 flow [2024-02-07 14:54:52,466 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=193, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=245, PETRI_PLACES=78, PETRI_TRANSITIONS=74} [2024-02-07 14:54:52,467 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, 12 predicate places. [2024-02-07 14:54:52,467 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 74 transitions, 245 flow [2024-02-07 14:54:52,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.166666666666668) internal successors, (151), 6 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:54:52,467 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 14:54:52,468 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2024-02-07 14:54:52,480 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-02-07 14:54:52,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2024-02-07 14:54:52,680 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 12 more)] === [2024-02-07 14:54:52,681 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 14:54:52,681 INFO L85 PathProgramCache]: Analyzing trace with hash 825662288, now seen corresponding path program 1 times [2024-02-07 14:54:52,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 14:54:52,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629258356] [2024-02-07 14:54:52,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 14:54:52,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 14:54:52,722 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2024-02-07 14:54:52,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1573846596] [2024-02-07 14:54:52,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 14:54:52,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-02-07 14:54:52,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-07 14:54:52,741 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-02-07 14:54:52,756 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-02-07 14:54:52,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 14:54:52,902 INFO L262 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 13 conjunts are in the unsatisfiable core [2024-02-07 14:54:52,904 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-02-07 14:54:52,978 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 14:54:52,978 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-02-07 14:54:53,219 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 14:54:53,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 14:54:53,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629258356] [2024-02-07 14:54:53,220 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-02-07 14:54:53,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1573846596] [2024-02-07 14:54:53,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1573846596] provided 0 perfect and 2 imperfect interpolant sequences [2024-02-07 14:54:53,221 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-02-07 14:54:53,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-02-07 14:54:53,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810551943] [2024-02-07 14:54:53,221 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-02-07 14:54:53,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-02-07 14:54:53,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 14:54:53,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-02-07 14:54:53,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2024-02-07 14:54:53,233 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 80 [2024-02-07 14:54:53,233 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 74 transitions, 245 flow. Second operand has 10 states, 10 states have (on average 25.7) internal successors, (257), 10 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:54:53,233 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 14:54:53,233 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 80 [2024-02-07 14:54:53,234 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 14:54:53,848 INFO L124 PetriNetUnfolderBase]: 1/23 cut-off events. [2024-02-07 14:54:53,848 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2024-02-07 14:54:53,848 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 23 events. 1/23 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 1 event pairs, 0 based on Foata normal form. 8/31 useless extension candidates. Maximal degree in co-relation 89. Up to 7 conditions per place. [2024-02-07 14:54:53,849 INFO L140 encePairwiseOnDemand]: 74/80 looper letters, 14 selfloop transitions, 9 changer transitions 0/23 dead transitions. [2024-02-07 14:54:53,849 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 23 transitions, 179 flow [2024-02-07 14:54:53,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-02-07 14:54:53,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-02-07 14:54:53,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 247 transitions. [2024-02-07 14:54:53,851 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.34305555555555556 [2024-02-07 14:54:53,851 INFO L175 Difference]: Start difference. First operand has 78 places, 74 transitions, 245 flow. Second operand 9 states and 247 transitions. [2024-02-07 14:54:53,851 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 23 transitions, 179 flow [2024-02-07 14:54:53,852 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 23 transitions, 118 flow, removed 2 selfloop flow, removed 9 redundant places. [2024-02-07 14:54:53,853 INFO L231 Difference]: Finished difference. Result has 26 places, 14 transitions, 95 flow [2024-02-07 14:54:53,853 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=34, PETRI_DIFFERENCE_MINUEND_PLACES=13, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=10, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=4, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=95, PETRI_PLACES=26, PETRI_TRANSITIONS=14} [2024-02-07 14:54:53,853 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, -40 predicate places. [2024-02-07 14:54:53,854 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 14 transitions, 95 flow [2024-02-07 14:54:53,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 25.7) internal successors, (257), 10 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:54:53,854 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 14:54:53,854 INFO L208 CegarLoopForPetriNet]: trace histogram [6, 6, 5, 1, 1, 1, 1, 1] [2024-02-07 14:54:53,874 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-02-07 14:54:54,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-02-07 14:54:54,068 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 12 more)] === [2024-02-07 14:54:54,068 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 14:54:54,068 INFO L85 PathProgramCache]: Analyzing trace with hash -989333552, now seen corresponding path program 2 times [2024-02-07 14:54:54,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 14:54:54,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988300129] [2024-02-07 14:54:54,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 14:54:54,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 14:54:54,144 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2024-02-07 14:54:54,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1421015077] [2024-02-07 14:54:54,144 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-02-07 14:54:54,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-02-07 14:54:54,145 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-07 14:54:54,148 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-02-07 14:54:54,173 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-02-07 14:54:54,641 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-02-07 14:54:54,641 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-02-07 14:54:54,646 INFO L262 TraceCheckSpWp]: Trace formula consists of 692 conjuncts, 29 conjunts are in the unsatisfiable core [2024-02-07 14:54:54,648 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-02-07 14:54:54,775 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 14:54:54,775 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-02-07 14:54:55,337 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 14:54:55,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 14:54:55,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988300129] [2024-02-07 14:54:55,338 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-02-07 14:54:55,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1421015077] [2024-02-07 14:54:55,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1421015077] provided 0 perfect and 2 imperfect interpolant sequences [2024-02-07 14:54:55,339 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-02-07 14:54:55,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2024-02-07 14:54:55,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773779621] [2024-02-07 14:54:55,339 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-02-07 14:54:55,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-02-07 14:54:55,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 14:54:55,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-02-07 14:54:55,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=195, Unknown=0, NotChecked=0, Total=306 [2024-02-07 14:54:55,398 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 80 [2024-02-07 14:54:55,399 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 14 transitions, 95 flow. Second operand has 18 states, 18 states have (on average 26.27777777777778) internal successors, (473), 18 states have internal predecessors, (473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:54:55,399 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 14:54:55,399 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 80 [2024-02-07 14:54:55,399 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 14:54:57,839 INFO L124 PetriNetUnfolderBase]: 1/47 cut-off events. [2024-02-07 14:54:57,840 INFO L125 PetriNetUnfolderBase]: For 106/106 co-relation queries the response was YES. [2024-02-07 14:54:57,840 INFO L83 FinitePrefix]: Finished finitePrefix Result has 190 conditions, 47 events. 1/47 cut-off events. For 106/106 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 1 event pairs, 0 based on Foata normal form. 8/55 useless extension candidates. Maximal degree in co-relation 179. Up to 16 conditions per place. [2024-02-07 14:54:57,840 INFO L140 encePairwiseOnDemand]: 75/80 looper letters, 30 selfloop transitions, 17 changer transitions 0/47 dead transitions. [2024-02-07 14:54:57,840 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 47 transitions, 359 flow [2024-02-07 14:54:57,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-02-07 14:54:57,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-02-07 14:54:57,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 463 transitions. [2024-02-07 14:54:57,842 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.34044117647058825 [2024-02-07 14:54:57,842 INFO L175 Difference]: Start difference. First operand has 26 places, 14 transitions, 95 flow. Second operand 17 states and 463 transitions. [2024-02-07 14:54:57,843 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 47 transitions, 359 flow [2024-02-07 14:54:57,844 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 47 transitions, 304 flow, removed 24 selfloop flow, removed 4 redundant places. [2024-02-07 14:54:57,844 INFO L231 Difference]: Finished difference. Result has 47 places, 23 transitions, 199 flow [2024-02-07 14:54:57,845 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=5, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=199, PETRI_PLACES=47, PETRI_TRANSITIONS=23} [2024-02-07 14:54:57,845 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, -19 predicate places. [2024-02-07 14:54:57,845 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 23 transitions, 199 flow [2024-02-07 14:54:57,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 26.27777777777778) internal successors, (473), 18 states have internal predecessors, (473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:54:57,846 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 14:54:57,846 INFO L208 CegarLoopForPetriNet]: trace histogram [14, 14, 13, 1, 1, 1, 1, 1] [2024-02-07 14:54:57,878 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-02-07 14:54:58,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-02-07 14:54:58,060 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 12 more)] === [2024-02-07 14:54:58,060 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 14:54:58,060 INFO L85 PathProgramCache]: Analyzing trace with hash 1674997968, now seen corresponding path program 3 times [2024-02-07 14:54:58,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 14:54:58,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561296267] [2024-02-07 14:54:58,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 14:54:58,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 14:54:58,216 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2024-02-07 14:54:58,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1240610098] [2024-02-07 14:54:58,216 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-02-07 14:54:58,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-02-07 14:54:58,217 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-07 14:54:58,218 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-02-07 14:54:58,240 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process Killed by 15