/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_LAZY.epf -i ../../../trunk/examples/svcomp/loop-invgen/id_build.i


--------------------------------------------------------------------------------


This is Ultimate 0.2.2-dev-a10ec3b
[2022-01-10 14:25:42,505 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2022-01-10 14:25:42,507 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2022-01-10 14:25:42,547 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-01-10 14:25:42,553 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-01-10 14:25:42,556 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-01-10 14:25:42,558 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-01-10 14:25:42,563 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2022-01-10 14:25:42,565 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-01-10 14:25:42,571 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
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[2022-01-10 14:25:42,573 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-01-10 14:25:42,573 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-01-10 14:25:42,575 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-01-10 14:25:42,576 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-01-10 14:25:42,579 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-01-10 14:25:42,579 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-01-10 14:25:42,580 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-01-10 14:25:42,582 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-01-10 14:25:42,586 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2022-01-10 14:25:42,587 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-01-10 14:25:42,588 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-01-10 14:25:42,590 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2022-01-10 14:25:42,591 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-01-10 14:25:42,594 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-01-10 14:25:42,595 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-01-10 14:25:42,595 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-01-10 14:25:42,596 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-01-10 14:25:42,597 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-01-10 14:25:42,597 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-01-10 14:25:42,597 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-01-10 14:25:42,598 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-01-10 14:25:42,599 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-01-10 14:25:42,600 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2022-01-10 14:25:42,601 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-01-10 14:25:42,601 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2022-01-10 14:25:42,602 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-01-10 14:25:42,602 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-01-10 14:25:42,602 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
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[2022-01-10 14:25:42,603 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2022-01-10 14:25:42,605 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_LAZY.epf
[2022-01-10 14:25:42,627 INFO  L113        SettingsManager]: Loading preferences was successful
[2022-01-10 14:25:42,627 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2022-01-10 14:25:42,627 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-01-10 14:25:42,627 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-01-10 14:25:42,628 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-01-10 14:25:42,628 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2022-01-10 14:25:42,629 INFO  L138        SettingsManager]:  * Use SBE=true
[2022-01-10 14:25:42,629 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-01-10 14:25:42,629 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2022-01-10 14:25:42,629 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2022-01-10 14:25:42,629 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2022-01-10 14:25:42,629 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-01-10 14:25:42,629 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2022-01-10 14:25:42,629 INFO  L138        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2022-01-10 14:25:42,629 INFO  L138        SettingsManager]:  * Use bitvectors instead of ints=true
[2022-01-10 14:25:42,630 INFO  L138        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2022-01-10 14:25:42,630 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2022-01-10 14:25:42,630 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2022-01-10 14:25:42,630 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-01-10 14:25:42,630 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2022-01-10 14:25:42,630 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2022-01-10 14:25:42,630 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-01-10 14:25:42,630 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-01-10 14:25:42,631 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2022-01-10 14:25:42,631 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-01-10 14:25:42,631 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2022-01-10 14:25:42,632 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-01-10 14:25:42,632 INFO  L138        SettingsManager]:  * Large block encoding in concurrent analysis=OFF
[2022-01-10 14:25:42,633 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2022-01-10 14:25:42,633 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-01-10 14:25:42,633 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2022-01-10 14:25:42,633 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2022-01-10 14:25:42,634 INFO  L136        SettingsManager]: Preferences of IcfgTransformer differ from their defaults:
[2022-01-10 14:25:42,634 INFO  L138        SettingsManager]:  * TransformationType=BV_TO_INT_LAZY
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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN;
[2022-01-10 14:25:42,903 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2022-01-10 14:25:42,928 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-01-10 14:25:42,930 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-01-10 14:25:42,931 INFO  L271        PluginConnector]: Initializing CDTParser...
[2022-01-10 14:25:42,932 INFO  L275        PluginConnector]: CDTParser initialized
[2022-01-10 14:25:42,933 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/id_build.i
[2022-01-10 14:25:42,989 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/340dc25ae/b42acaa51d694a54a1553826cd1e364a/FLAG3f9ccc6dd
[2022-01-10 14:25:43,374 INFO  L306              CDTParser]: Found 1 translation units.
[2022-01-10 14:25:43,374 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/id_build.i
[2022-01-10 14:25:43,384 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/340dc25ae/b42acaa51d694a54a1553826cd1e364a/FLAG3f9ccc6dd
[2022-01-10 14:25:43,776 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/340dc25ae/b42acaa51d694a54a1553826cd1e364a
[2022-01-10 14:25:43,778 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-01-10 14:25:43,779 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2022-01-10 14:25:43,783 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-01-10 14:25:43,784 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-01-10 14:25:43,786 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2022-01-10 14:25:43,787 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 02:25:43" (1/1) ...
[2022-01-10 14:25:43,788 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35f32b97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:25:43, skipping insertion in model container
[2022-01-10 14:25:43,788 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 02:25:43" (1/1) ...
[2022-01-10 14:25:43,793 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2022-01-10 14:25:43,807 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2022-01-10 14:25:43,993 WARN  L230   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/id_build.i[893,906]
[2022-01-10 14:25:44,025 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-01-10 14:25:44,035 INFO  L203         MainTranslator]: Completed pre-run
[2022-01-10 14:25:44,049 WARN  L230   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/id_build.i[893,906]
[2022-01-10 14:25:44,056 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-01-10 14:25:44,069 INFO  L208         MainTranslator]: Completed translation
[2022-01-10 14:25:44,069 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:25:44 WrapperNode
[2022-01-10 14:25:44,070 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-01-10 14:25:44,071 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-01-10 14:25:44,071 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-01-10 14:25:44,071 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2022-01-10 14:25:44,077 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:25:44" (1/1) ...
[2022-01-10 14:25:44,084 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:25:44" (1/1) ...
[2022-01-10 14:25:44,099 INFO  L137                Inliner]: procedures = 16, calls = 8, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 47
[2022-01-10 14:25:44,100 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-01-10 14:25:44,101 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-01-10 14:25:44,101 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2022-01-10 14:25:44,101 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2022-01-10 14:25:44,107 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:25:44" (1/1) ...
[2022-01-10 14:25:44,107 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:25:44" (1/1) ...
[2022-01-10 14:25:44,120 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:25:44" (1/1) ...
[2022-01-10 14:25:44,120 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:25:44" (1/1) ...
[2022-01-10 14:25:44,124 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:25:44" (1/1) ...
[2022-01-10 14:25:44,127 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:25:44" (1/1) ...
[2022-01-10 14:25:44,128 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:25:44" (1/1) ...
[2022-01-10 14:25:44,129 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-01-10 14:25:44,130 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-01-10 14:25:44,130 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2022-01-10 14:25:44,130 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2022-01-10 14:25:44,132 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:25:44" (1/1) ...
[2022-01-10 14:25:44,138 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-01-10 14:25:44,147 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-01-10 14:25:44,161 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2022-01-10 14:25:44,176 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2022-01-10 14:25:44,213 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-01-10 14:25:44,213 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1
[2022-01-10 14:25:44,213 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-01-10 14:25:44,214 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-01-10 14:25:44,270 INFO  L234             CfgBuilder]: Building ICFG
[2022-01-10 14:25:44,272 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2022-01-10 14:25:44,409 INFO  L275             CfgBuilder]: Performing block encoding
[2022-01-10 14:25:44,414 INFO  L294             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-01-10 14:25:44,415 INFO  L299             CfgBuilder]: Removed 2 assume(true) statements.
[2022-01-10 14:25:44,416 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 02:25:44 BoogieIcfgContainer
[2022-01-10 14:25:44,416 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-01-10 14:25:44,417 INFO  L113        PluginConnector]: ------------------------IcfgTransformer----------------------------
[2022-01-10 14:25:44,417 INFO  L271        PluginConnector]: Initializing IcfgTransformer...
[2022-01-10 14:25:44,421 INFO  L275        PluginConnector]: IcfgTransformer initialized
[2022-01-10 14:25:44,437 INFO  L185        PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 02:25:44" (1/1) ...
[2022-01-10 14:25:44,494 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 02:25:44 BasicIcfg
[2022-01-10 14:25:44,494 INFO  L132        PluginConnector]: ------------------------ END IcfgTransformer----------------------------
[2022-01-10 14:25:44,496 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-01-10 14:25:44,496 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2022-01-10 14:25:44,498 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2022-01-10 14:25:44,499 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 02:25:43" (1/4) ...
[2022-01-10 14:25:44,499 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f82d88c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 02:25:44, skipping insertion in model container
[2022-01-10 14:25:44,499 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:25:44" (2/4) ...
[2022-01-10 14:25:44,500 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f82d88c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 02:25:44, skipping insertion in model container
[2022-01-10 14:25:44,500 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 02:25:44" (3/4) ...
[2022-01-10 14:25:44,500 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f82d88c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 02:25:44, skipping insertion in model container
[2022-01-10 14:25:44,500 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 02:25:44" (4/4) ...
[2022-01-10 14:25:44,501 INFO  L111   eAbstractionObserver]: Analyzing ICFG id_build.iTransformedIcfg
[2022-01-10 14:25:44,505 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-01-10 14:25:44,506 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations.
[2022-01-10 14:25:44,543 INFO  L338      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-01-10 14:25:44,549 INFO  L339      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=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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, mLoopAccelerationTechnique=FAST_UPR
[2022-01-10 14:25:44,550 INFO  L340      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2022-01-10 14:25:44,561 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 18 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 17 states have internal predecessors, (23), 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)
[2022-01-10 14:25:44,574 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 7
[2022-01-10 14:25:44,574 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-10 14:25:44,575 INFO  L514         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1]
[2022-01-10 14:25:44,575 INFO  L402      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-10 14:25:44,580 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-10 14:25:44,580 INFO  L85        PathProgramCache]: Analyzing trace with hash -1808906263, now seen corresponding path program 1 times
[2022-01-10 14:25:44,589 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-10 14:25:44,591 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114493934]
[2022-01-10 14:25:44,591 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-10 14:25:44,592 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-10 14:25:44,761 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-10 14:25:45,012 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-01-10 14:25:45,013 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-10 14:25:45,013 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114493934]
[2022-01-10 14:25:45,014 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114493934] provided 1 perfect and 0 imperfect interpolant sequences
[2022-01-10 14:25:45,014 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-01-10 14:25:45,014 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2022-01-10 14:25:45,015 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478960911]
[2022-01-10 14:25:45,016 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-01-10 14:25:45,019 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2022-01-10 14:25:45,019 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-10 14:25:45,041 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2022-01-10 14:25:45,042 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2022-01-10 14:25:45,043 INFO  L87              Difference]: Start difference. First operand  has 18 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 17 states have internal predecessors, (23), 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) Second operand  has 5 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 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)
[2022-01-10 14:25:45,213 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-10 14:25:45,214 INFO  L93              Difference]: Finished difference Result 55 states and 75 transitions.
[2022-01-10 14:25:45,215 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2022-01-10 14:25:45,216 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 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) Word has length 6
[2022-01-10 14:25:45,216 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-10 14:25:45,222 INFO  L225             Difference]: With dead ends: 55
[2022-01-10 14:25:45,222 INFO  L226             Difference]: Without dead ends: 27
[2022-01-10 14:25:45,224 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-01-10 14:25:45,231 INFO  L933         BasicCegarLoop]: 18 mSDtfsCounter, 31 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-01-10 14:25:45,232 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 60 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-01-10 14:25:45,245 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 27 states.
[2022-01-10 14:25:45,258 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 21.
[2022-01-10 14:25:45,260 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 21 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 20 states have internal predecessors, (23), 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)
[2022-01-10 14:25:45,260 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions.
[2022-01-10 14:25:45,261 INFO  L78                 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 6
[2022-01-10 14:25:45,261 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-01-10 14:25:45,261 INFO  L470      AbstractCegarLoop]: Abstraction has 21 states and 23 transitions.
[2022-01-10 14:25:45,262 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 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)
[2022-01-10 14:25:45,262 INFO  L276                IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions.
[2022-01-10 14:25:45,262 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2022-01-10 14:25:45,262 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-10 14:25:45,262 INFO  L514         BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1]
[2022-01-10 14:25:45,263 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-01-10 14:25:45,263 INFO  L402      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-10 14:25:45,264 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-10 14:25:45,264 INFO  L85        PathProgramCache]: Analyzing trace with hash -201607038, now seen corresponding path program 1 times
[2022-01-10 14:25:45,264 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-10 14:25:45,264 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965945749]
[2022-01-10 14:25:45,264 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-10 14:25:45,264 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-10 14:25:45,285 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-10 14:25:45,307 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-01-10 14:25:45,308 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-10 14:25:45,308 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965945749]
[2022-01-10 14:25:45,308 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965945749] provided 1 perfect and 0 imperfect interpolant sequences
[2022-01-10 14:25:45,308 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-01-10 14:25:45,308 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-01-10 14:25:45,309 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785793332]
[2022-01-10 14:25:45,309 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-01-10 14:25:45,310 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-01-10 14:25:45,310 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-10 14:25:45,310 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-01-10 14:25:45,310 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-01-10 14:25:45,311 INFO  L87              Difference]: Start difference. First operand 21 states and 23 transitions. Second operand  has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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)
[2022-01-10 14:25:45,345 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-10 14:25:45,345 INFO  L93              Difference]: Finished difference Result 49 states and 54 transitions.
[2022-01-10 14:25:45,347 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-01-10 14:25:45,347 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) Word has length 9
[2022-01-10 14:25:45,347 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-10 14:25:45,348 INFO  L225             Difference]: With dead ends: 49
[2022-01-10 14:25:45,348 INFO  L226             Difference]: Without dead ends: 37
[2022-01-10 14:25:45,348 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-01-10 14:25:45,350 INFO  L933         BasicCegarLoop]: 13 mSDtfsCounter, 9 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-01-10 14:25:45,350 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 23 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-01-10 14:25:45,351 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 37 states.
[2022-01-10 14:25:45,358 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 23.
[2022-01-10 14:25:45,358 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 23 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 22 states have internal predecessors, (25), 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)
[2022-01-10 14:25:45,359 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions.
[2022-01-10 14:25:45,359 INFO  L78                 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 9
[2022-01-10 14:25:45,359 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-01-10 14:25:45,359 INFO  L470      AbstractCegarLoop]: Abstraction has 23 states and 25 transitions.
[2022-01-10 14:25:45,359 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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)
[2022-01-10 14:25:45,359 INFO  L276                IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions.
[2022-01-10 14:25:45,360 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2022-01-10 14:25:45,360 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-10 14:25:45,360 INFO  L514         BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-01-10 14:25:45,360 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2022-01-10 14:25:45,361 INFO  L402      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-10 14:25:45,361 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-10 14:25:45,361 INFO  L85        PathProgramCache]: Analyzing trace with hash -1265965911, now seen corresponding path program 1 times
[2022-01-10 14:25:45,361 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-10 14:25:45,362 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087978312]
[2022-01-10 14:25:45,362 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-10 14:25:45,362 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-10 14:25:45,390 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-10 14:25:45,428 INFO  L134       CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-01-10 14:25:45,428 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-10 14:25:45,429 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087978312]
[2022-01-10 14:25:45,429 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087978312] provided 0 perfect and 1 imperfect interpolant sequences
[2022-01-10 14:25:45,429 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1148770268]
[2022-01-10 14:25:45,429 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-10 14:25:45,429 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-01-10 14:25:45,430 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-01-10 14:25:45,431 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)
[2022-01-10 14:25:45,438 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2022-01-10 14:25:45,495 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-10 14:25:45,497 INFO  L263         TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 13 conjunts are in the unsatisfiable core
[2022-01-10 14:25:45,502 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-01-10 14:25:45,763 INFO  L134       CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-01-10 14:25:45,763 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-01-10 14:25:46,046 INFO  L134       CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-01-10 14:25:46,046 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1148770268] provided 0 perfect and 2 imperfect interpolant sequences
[2022-01-10 14:25:46,047 INFO  L186   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-01-10 14:25:46,047 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5, 6] total 11
[2022-01-10 14:25:46,050 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704033727]
[2022-01-10 14:25:46,050 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-01-10 14:25:46,051 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 11 states
[2022-01-10 14:25:46,052 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-10 14:25:46,052 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2022-01-10 14:25:46,054 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110
[2022-01-10 14:25:46,054 INFO  L87              Difference]: Start difference. First operand 23 states and 25 transitions. Second operand  has 11 states, 11 states have (on average 3.090909090909091) internal successors, (34), 11 states have internal predecessors, (34), 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)
[2022-01-10 14:25:46,504 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-10 14:25:46,504 INFO  L93              Difference]: Finished difference Result 89 states and 98 transitions.
[2022-01-10 14:25:46,505 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. 
[2022-01-10 14:25:46,505 INFO  L78                 Accepts]: Start accepts. Automaton has  has 11 states, 11 states have (on average 3.090909090909091) internal successors, (34), 11 states have internal predecessors, (34), 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) Word has length 15
[2022-01-10 14:25:46,505 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-10 14:25:46,507 INFO  L225             Difference]: With dead ends: 89
[2022-01-10 14:25:46,507 INFO  L226             Difference]: Without dead ends: 72
[2022-01-10 14:25:46,508 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272
[2022-01-10 14:25:46,509 INFO  L933         BasicCegarLoop]: 12 mSDtfsCounter, 94 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2022-01-10 14:25:46,509 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [94 Valid, 83 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2022-01-10 14:25:46,510 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 72 states.
[2022-01-10 14:25:46,533 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 59.
[2022-01-10 14:25:46,534 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 59 states, 57 states have (on average 1.1754385964912282) internal successors, (67), 58 states have internal predecessors, (67), 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)
[2022-01-10 14:25:46,538 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 67 transitions.
[2022-01-10 14:25:46,538 INFO  L78                 Accepts]: Start accepts. Automaton has 59 states and 67 transitions. Word has length 15
[2022-01-10 14:25:46,539 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-01-10 14:25:46,539 INFO  L470      AbstractCegarLoop]: Abstraction has 59 states and 67 transitions.
[2022-01-10 14:25:46,539 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 11 states, 11 states have (on average 3.090909090909091) internal successors, (34), 11 states have internal predecessors, (34), 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)
[2022-01-10 14:25:46,539 INFO  L276                IsEmpty]: Start isEmpty. Operand 59 states and 67 transitions.
[2022-01-10 14:25:46,540 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 34
[2022-01-10 14:25:46,540 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-10 14:25:46,540 INFO  L514         BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1]
[2022-01-10 14:25:46,571 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2022-01-10 14:25:46,753 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-01-10 14:25:46,754 INFO  L402      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-10 14:25:46,755 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-10 14:25:46,755 INFO  L85        PathProgramCache]: Analyzing trace with hash 1691373982, now seen corresponding path program 2 times
[2022-01-10 14:25:46,755 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-10 14:25:46,755 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710168279]
[2022-01-10 14:25:46,755 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-10 14:25:46,755 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-10 14:25:46,838 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-10 14:25:46,957 INFO  L134       CoverageAnalysis]: Checked inductivity of 50 backedges. 10 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-01-10 14:25:46,957 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-10 14:25:46,958 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710168279]
[2022-01-10 14:25:46,958 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710168279] provided 0 perfect and 1 imperfect interpolant sequences
[2022-01-10 14:25:46,960 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [307137321]
[2022-01-10 14:25:46,960 INFO  L93    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2022-01-10 14:25:46,960 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-01-10 14:25:46,960 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-01-10 14:25:46,961 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)
[2022-01-10 14:25:46,964 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2022-01-10 14:25:47,097 INFO  L228   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2022-01-10 14:25:47,097 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2022-01-10 14:25:47,099 INFO  L263         TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 10 conjunts are in the unsatisfiable core
[2022-01-10 14:25:47,102 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-01-10 14:25:47,266 INFO  L134       CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked.
[2022-01-10 14:25:47,266 INFO  L328         TraceCheckSpWp]: Computing backward predicates...