/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/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/loopacceleration/qvasr/qvasr_64.epf -i ../../../trunk/examples/svcomp/nla-digbench-scaling/mannadiv_unwindbound5.c
--------------------------------------------------------------------------------
This is Ultimate 0.2.2-dev-34549b5
[2022-04-06 12:59:58,399 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2022-04-06 12:59:58,400 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2022-04-06 12:59:58,440 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-04-06 12:59:58,440 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-04-06 12:59:58,441 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-04-06 12:59:58,445 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-04-06 12:59:58,450 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2022-04-06 12:59:58,452 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-04-06 12:59:58,456 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-04-06 12:59:58,456 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2022-04-06 12:59:58,457 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-04-06 12:59:58,457 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-04-06 12:59:58,458 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-04-06 12:59:58,459 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-04-06 12:59:58,459 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-04-06 12:59:58,460 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-04-06 12:59:58,460 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-04-06 12:59:58,462 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-04-06 12:59:58,463 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2022-04-06 12:59:58,464 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values
[2022-04-06 12:59:58,466 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-04-06 12:59:58,467 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-04-06 12:59:58,469 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2022-04-06 12:59:58,470 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-04-06 12:59:58,481 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-04-06 12:59:58,481 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-04-06 12:59:58,482 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-04-06 12:59:58,482 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-04-06 12:59:58,483 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-04-06 12:59:58,484 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-04-06 12:59:58,484 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-04-06 12:59:58,486 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-04-06 12:59:58,486 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-04-06 12:59:58,487 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2022-04-06 12:59:58,487 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-04-06 12:59:58,488 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2022-04-06 12:59:58,488 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-04-06 12:59:58,488 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-04-06 12:59:58,488 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2022-04-06 12:59:58,489 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2022-04-06 12:59:58,491 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2022-04-06 12:59:58,491 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/loopacceleration/qvasr/qvasr_64.epf
[2022-04-06 12:59:58,516 INFO L113 SettingsManager]: Loading preferences was successful
[2022-04-06 12:59:58,517 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2022-04-06 12:59:58,517 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-04-06 12:59:58,518 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-04-06 12:59:58,518 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-04-06 12:59:58,519 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2022-04-06 12:59:58,519 INFO L138 SettingsManager]: * Use SBE=true
[2022-04-06 12:59:58,519 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-04-06 12:59:58,519 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2022-04-06 12:59:58,520 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2022-04-06 12:59:58,520 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2022-04-06 12:59:58,520 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-04-06 12:59:58,520 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2022-04-06 12:59:58,520 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2022-04-06 12:59:58,520 INFO L138 SettingsManager]: * Use constant arrays=true
[2022-04-06 12:59:58,520 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2022-04-06 12:59:58,520 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-04-06 12:59:58,520 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2022-04-06 12:59:58,521 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2022-04-06 12:59:58,521 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-04-06 12:59:58,521 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-04-06 12:59:58,521 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2022-04-06 12:59:58,521 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-04-06 12:59:58,521 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2022-04-06 12:59:58,521 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-04-06 12:59:58,521 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-04-06 12:59:58,522 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2022-04-06 12:59:58,522 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2022-04-06 12:59:58,522 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults:
[2022-04-06 12:59:58,522 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_QVASR
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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN;
[2022-04-06 12:59:58,721 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2022-04-06 12:59:58,740 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-04-06 12:59:58,742 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-04-06 12:59:58,743 INFO L271 PluginConnector]: Initializing CDTParser...
[2022-04-06 12:59:58,743 INFO L275 PluginConnector]: CDTParser initialized
[2022-04-06 12:59:58,744 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/mannadiv_unwindbound5.c
[2022-04-06 12:59:58,804 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7634efbdd/e18d327f0bbf4fbaa789c69d58bbe209/FLAGe7f1a029c
[2022-04-06 12:59:59,108 INFO L306 CDTParser]: Found 1 translation units.
[2022-04-06 12:59:59,109 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/mannadiv_unwindbound5.c
[2022-04-06 12:59:59,113 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7634efbdd/e18d327f0bbf4fbaa789c69d58bbe209/FLAGe7f1a029c
[2022-04-06 12:59:59,543 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7634efbdd/e18d327f0bbf4fbaa789c69d58bbe209
[2022-04-06 12:59:59,545 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-04-06 12:59:59,546 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements.
[2022-04-06 12:59:59,549 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-04-06 12:59:59,550 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-04-06 12:59:59,552 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2022-04-06 12:59:59,552 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.04 12:59:59" (1/1) ...
[2022-04-06 12:59:59,553 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c4df623 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 12:59:59, skipping insertion in model container
[2022-04-06 12:59:59,553 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.04 12:59:59" (1/1) ...
[2022-04-06 12:59:59,560 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2022-04-06 12:59:59,573 INFO L178 MainTranslator]: Built tables and reachable declarations
[2022-04-06 12:59:59,682 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/mannadiv_unwindbound5.c[573,586]
[2022-04-06 12:59:59,713 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-04-06 12:59:59,721 INFO L203 MainTranslator]: Completed pre-run
[2022-04-06 12:59:59,729 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/mannadiv_unwindbound5.c[573,586]
[2022-04-06 12:59:59,733 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-04-06 12:59:59,742 INFO L208 MainTranslator]: Completed translation
[2022-04-06 12:59:59,742 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 12:59:59 WrapperNode
[2022-04-06 12:59:59,743 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-04-06 12:59:59,744 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-04-06 12:59:59,744 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2022-04-06 12:59:59,745 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2022-04-06 12:59:59,752 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 12:59:59" (1/1) ...
[2022-04-06 12:59:59,753 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 12:59:59" (1/1) ...
[2022-04-06 12:59:59,759 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 12:59:59" (1/1) ...
[2022-04-06 12:59:59,759 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 12:59:59" (1/1) ...
[2022-04-06 12:59:59,771 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 12:59:59" (1/1) ...
[2022-04-06 12:59:59,773 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 12:59:59" (1/1) ...
[2022-04-06 12:59:59,774 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 12:59:59" (1/1) ...
[2022-04-06 12:59:59,775 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-04-06 12:59:59,776 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-04-06 12:59:59,776 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2022-04-06 12:59:59,776 INFO L275 PluginConnector]: RCFGBuilder initialized
[2022-04-06 12:59:59,778 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 12:59:59" (1/1) ...
[2022-04-06 12:59:59,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-04-06 12:59:59,793 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-04-06 12:59:59,807 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)
[2022-04-06 12:59:59,823 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
[2022-04-06 12:59:59,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2022-04-06 12:59:59,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-04-06 12:59:59,842 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error
[2022-04-06 12:59:59,842 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2022-04-06 12:59:59,842 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2022-04-06 12:59:59,842 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2022-04-06 12:59:59,842 INFO L130 BoogieDeclarations]: Found specification of procedure abort
[2022-04-06 12:59:59,843 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail
[2022-04-06 12:59:59,844 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error
[2022-04-06 12:59:59,844 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-04-06 12:59:59,844 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2022-04-06 12:59:59,844 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2022-04-06 12:59:59,844 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2022-04-06 12:59:59,844 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2022-04-06 12:59:59,844 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2022-04-06 12:59:59,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2022-04-06 12:59:59,845 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-04-06 12:59:59,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2022-04-06 12:59:59,845 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2022-04-06 12:59:59,845 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2022-04-06 12:59:59,901 INFO L234 CfgBuilder]: Building ICFG
[2022-04-06 12:59:59,902 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2022-04-06 13:00:00,007 INFO L275 CfgBuilder]: Performing block encoding
[2022-04-06 13:00:00,012 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-04-06 13:00:00,012 INFO L299 CfgBuilder]: Removed 1 assume(true) statements.
[2022-04-06 13:00:00,013 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.04 01:00:00 BoogieIcfgContainer
[2022-04-06 13:00:00,013 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-04-06 13:00:00,014 INFO L113 PluginConnector]: ------------------------IcfgTransformer----------------------------
[2022-04-06 13:00:00,014 INFO L271 PluginConnector]: Initializing IcfgTransformer...
[2022-04-06 13:00:00,015 INFO L275 PluginConnector]: IcfgTransformer initialized
[2022-04-06 13:00:00,017 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.04 01:00:00" (1/1) ...
[2022-04-06 13:00:00,019 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_QVASR
[2022-04-06 13:00:00,031 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 06.04 01:00:00 BasicIcfg
[2022-04-06 13:00:00,031 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer----------------------------
[2022-04-06 13:00:00,032 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-04-06 13:00:00,032 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2022-04-06 13:00:00,035 INFO L275 PluginConnector]: TraceAbstraction initialized
[2022-04-06 13:00:00,035 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.04 12:59:59" (1/4) ...
[2022-04-06 13:00:00,052 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f2be5a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.04 01:00:00, skipping insertion in model container
[2022-04-06 13:00:00,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 12:59:59" (2/4) ...
[2022-04-06 13:00:00,052 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f2be5a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.04 01:00:00, skipping insertion in model container
[2022-04-06 13:00:00,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.04 01:00:00" (3/4) ...
[2022-04-06 13:00:00,053 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f2be5a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.04 01:00:00, skipping insertion in model container
[2022-04-06 13:00:00,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 06.04 01:00:00" (4/4) ...
[2022-04-06 13:00:00,054 INFO L111 eAbstractionObserver]: Analyzing ICFG mannadiv_unwindbound5.cqvasr
[2022-04-06 13:00:00,058 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-04-06 13:00:00,058 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2022-04-06 13:00:00,105 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-04-06 13:00:00,110 INFO L340 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=FINITE_AUTOMATA, 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
[2022-04-06 13:00:00,110 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2022-04-06 13:00:00,153 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 19 states have internal predecessors, (25), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6)
[2022-04-06 13:00:00,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23
[2022-04-06 13:00:00,157 INFO L491 BasicCegarLoop]: Found error trace
[2022-04-06 13:00:00,158 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-04-06 13:00:00,158 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-04-06 13:00:00,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-04-06 13:00:00,162 INFO L85 PathProgramCache]: Analyzing trace with hash 734203501, now seen corresponding path program 1 times
[2022-04-06 13:00:00,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-04-06 13:00:00,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525878504]
[2022-04-06 13:00:00,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-06 13:00:00,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-04-06 13:00:00,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-06 13:00:00,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2022-04-06 13:00:00,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-06 13:00:00,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2022-04-06 13:00:00,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-06 13:00:00,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11
[2022-04-06 13:00:00,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-06 13:00:00,334 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2022-04-06 13:00:00,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-04-06 13:00:00,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525878504]
[2022-04-06 13:00:00,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525878504] provided 1 perfect and 0 imperfect interpolant sequences
[2022-04-06 13:00:00,336 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-04-06 13:00:00,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-04-06 13:00:00,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021705665]
[2022-04-06 13:00:00,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-04-06 13:00:00,341 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-04-06 13:00:00,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-04-06 13:00:00,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-04-06 13:00:00,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-04-06 13:00:00,369 INFO L87 Difference]: Start difference. First operand has 30 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 19 states have internal predecessors, (25), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3)
[2022-04-06 13:00:00,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-06 13:00:00,427 INFO L93 Difference]: Finished difference Result 54 states and 72 transitions.
[2022-04-06 13:00:00,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2022-04-06 13:00:00,429 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 22
[2022-04-06 13:00:00,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-04-06 13:00:00,435 INFO L225 Difference]: With dead ends: 54
[2022-04-06 13:00:00,435 INFO L226 Difference]: Without dead ends: 26
[2022-04-06 13:00:00,437 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-04-06 13:00:00,440 INFO L913 BasicCegarLoop]: 31 mSDtfsCounter, 10 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-04-06 13:00:00,440 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 35 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-04-06 13:00:00,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states.
[2022-04-06 13:00:00,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 25.
[2022-04-06 13:00:00,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 16 states have internal predecessors, (19), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2022-04-06 13:00:00,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 29 transitions.
[2022-04-06 13:00:00,489 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 29 transitions. Word has length 22
[2022-04-06 13:00:00,490 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-04-06 13:00:00,490 INFO L478 AbstractCegarLoop]: Abstraction has 25 states and 29 transitions.
[2022-04-06 13:00:00,490 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3)
[2022-04-06 13:00:00,490 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 29 transitions.
[2022-04-06 13:00:00,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24
[2022-04-06 13:00:00,491 INFO L491 BasicCegarLoop]: Found error trace
[2022-04-06 13:00:00,492 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-04-06 13:00:00,492 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-04-06 13:00:00,492 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-04-06 13:00:00,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-04-06 13:00:00,493 INFO L85 PathProgramCache]: Analyzing trace with hash -1669026344, now seen corresponding path program 1 times
[2022-04-06 13:00:00,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-04-06 13:00:00,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203677317]
[2022-04-06 13:00:00,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-06 13:00:00,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-04-06 13:00:00,515 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2022-04-06 13:00:00,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1480056127]
[2022-04-06 13:00:00,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-06 13:00:00,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-04-06 13:00:00,516 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-04-06 13:00:00,517 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)
[2022-04-06 13:00:00,518 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2022-04-06 13:00:00,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-06 13:00:00,568 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 5 conjunts are in the unsatisfiable core
[2022-04-06 13:00:00,573 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-04-06 13:00:00,658 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2022-04-06 13:00:00,658 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-04-06 13:00:00,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-04-06 13:00:00,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203677317]
[2022-04-06 13:00:00,659 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2022-04-06 13:00:00,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1480056127]
[2022-04-06 13:00:00,660 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1480056127] provided 1 perfect and 0 imperfect interpolant sequences
[2022-04-06 13:00:00,660 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-04-06 13:00:00,660 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2022-04-06 13:00:00,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698721534]
[2022-04-06 13:00:00,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-04-06 13:00:00,661 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2022-04-06 13:00:00,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-04-06 13:00:00,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2022-04-06 13:00:00,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2022-04-06 13:00:00,663 INFO L87 Difference]: Start difference. First operand 25 states and 29 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3)
[2022-04-06 13:00:00,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-06 13:00:00,674 INFO L93 Difference]: Finished difference Result 34 states and 38 transitions.
[2022-04-06 13:00:00,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2022-04-06 13:00:00,674 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 23
[2022-04-06 13:00:00,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-04-06 13:00:00,675 INFO L225 Difference]: With dead ends: 34
[2022-04-06 13:00:00,675 INFO L226 Difference]: Without dead ends: 27
[2022-04-06 13:00:00,676 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2022-04-06 13:00:00,677 INFO L913 BasicCegarLoop]: 27 mSDtfsCounter, 0 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-04-06 13:00:00,678 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 67 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-04-06 13:00:00,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states.
[2022-04-06 13:00:00,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27.
[2022-04-06 13:00:00,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 18 states have internal predecessors, (21), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2022-04-06 13:00:00,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions.
[2022-04-06 13:00:00,684 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 31 transitions. Word has length 23
[2022-04-06 13:00:00,698 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-04-06 13:00:00,698 INFO L478 AbstractCegarLoop]: Abstraction has 27 states and 31 transitions.
[2022-04-06 13:00:00,698 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3)
[2022-04-06 13:00:00,698 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions.
[2022-04-06 13:00:00,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24
[2022-04-06 13:00:00,699 INFO L491 BasicCegarLoop]: Found error trace
[2022-04-06 13:00:00,699 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-04-06 13:00:00,723 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2022-04-06 13:00:00,919 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-04-06 13:00:00,920 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-04-06 13:00:00,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-04-06 13:00:00,920 INFO L85 PathProgramCache]: Analyzing trace with hash -1667953868, now seen corresponding path program 1 times
[2022-04-06 13:00:00,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-04-06 13:00:00,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059816653]
[2022-04-06 13:00:00,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-06 13:00:00,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-04-06 13:00:00,939 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2022-04-06 13:00:00,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1321368655]
[2022-04-06 13:00:00,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-06 13:00:00,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-04-06 13:00:00,940 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-04-06 13:00:00,956 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)
[2022-04-06 13:00:00,969 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2022-04-06 13:00:01,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-06 13:00:01,008 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 14 conjunts are in the unsatisfiable core
[2022-04-06 13:00:01,010 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-04-06 13:00:01,116 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2022-04-06 13:00:01,117 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-04-06 13:00:01,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-04-06 13:00:01,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059816653]
[2022-04-06 13:00:01,117 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2022-04-06 13:00:01,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1321368655]
[2022-04-06 13:00:01,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1321368655] provided 1 perfect and 0 imperfect interpolant sequences
[2022-04-06 13:00:01,118 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-04-06 13:00:01,118 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2022-04-06 13:00:01,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420557030]
[2022-04-06 13:00:01,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-04-06 13:00:01,118 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-04-06 13:00:01,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-04-06 13:00:01,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-04-06 13:00:01,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56
[2022-04-06 13:00:01,120 INFO L87 Difference]: Start difference. First operand 27 states and 31 transitions. Second operand has 8 states, 8 states have (on average 1.875) internal successors, (15), 6 states have internal predecessors, (15), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3)
[2022-04-06 13:00:01,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-06 13:00:01,187 INFO L93 Difference]: Finished difference Result 37 states and 43 transitions.
[2022-04-06 13:00:01,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-04-06 13:00:01,188 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.875) internal successors, (15), 6 states have internal predecessors, (15), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 23
[2022-04-06 13:00:01,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-04-06 13:00:01,189 INFO L225 Difference]: With dead ends: 37
[2022-04-06 13:00:01,190 INFO L226 Difference]: Without dead ends: 35
[2022-04-06 13:00:01,190 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90
[2022-04-06 13:00:01,191 INFO L913 BasicCegarLoop]: 20 mSDtfsCounter, 19 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-04-06 13:00:01,192 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 108 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-04-06 13:00:01,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states.
[2022-04-06 13:00:01,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 32.
[2022-04-06 13:00:01,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 20 states have (on average 1.2) internal successors, (24), 22 states have internal predecessors, (24), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5)
[2022-04-06 13:00:01,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 36 transitions.
[2022-04-06 13:00:01,199 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 36 transitions. Word has length 23
[2022-04-06 13:00:01,199 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-04-06 13:00:01,199 INFO L478 AbstractCegarLoop]: Abstraction has 32 states and 36 transitions.
[2022-04-06 13:00:01,199 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.875) internal successors, (15), 6 states have internal predecessors, (15), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3)
[2022-04-06 13:00:01,200 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 36 transitions.
[2022-04-06 13:00:01,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30
[2022-04-06 13:00:01,200 INFO L491 BasicCegarLoop]: Found error trace
[2022-04-06 13:00:01,200 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-04-06 13:00:01,231 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2022-04-06 13:00:01,421 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2
[2022-04-06 13:00:01,421 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-04-06 13:00:01,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-04-06 13:00:01,422 INFO L85 PathProgramCache]: Analyzing trace with hash 1179905874, now seen corresponding path program 1 times
[2022-04-06 13:00:01,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-04-06 13:00:01,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443192040]
[2022-04-06 13:00:01,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-06 13:00:01,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-04-06 13:00:01,435 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2022-04-06 13:00:01,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1028803641]
[2022-04-06 13:00:01,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-06 13:00:01,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-04-06 13:00:01,436 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-04-06 13:00:01,441 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)
[2022-04-06 13:00:01,459 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2022-04-06 13:00:01,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-06 13:00:01,495 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 10 conjunts are in the unsatisfiable core
[2022-04-06 13:00:01,498 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-04-06 13:00:01,637 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2022-04-06 13:00:01,637 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-04-06 13:00:01,768 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2022-04-06 13:00:01,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-04-06 13:00:01,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443192040]
[2022-04-06 13:00:01,768 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2022-04-06 13:00:01,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1028803641]
[2022-04-06 13:00:01,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1028803641] provided 0 perfect and 2 imperfect interpolant sequences
[2022-04-06 13:00:01,769 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2022-04-06 13:00:01,769 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 10
[2022-04-06 13:00:01,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579396616]
[2022-04-06 13:00:01,769 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2022-04-06 13:00:01,770 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2022-04-06 13:00:01,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-04-06 13:00:01,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2022-04-06 13:00:01,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90
[2022-04-06 13:00:01,771 INFO L87 Difference]: Start difference. First operand 32 states and 36 transitions. Second operand has 10 states, 9 states have (on average 2.111111111111111) internal successors, (19), 7 states have internal predecessors, (19), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5)
[2022-04-06 13:00:01,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-06 13:00:01,852 INFO L93 Difference]: Finished difference Result 39 states and 42 transitions.
[2022-04-06 13:00:01,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-04-06 13:00:01,852 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.111111111111111) internal successors, (19), 7 states have internal predecessors, (19), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) Word has length 29
[2022-04-06 13:00:01,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-04-06 13:00:01,854 INFO L225 Difference]: With dead ends: 39
[2022-04-06 13:00:01,854 INFO L226 Difference]: Without dead ends: 34
[2022-04-06 13:00:01,855 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 48 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156
[2022-04-06 13:00:01,856 INFO L913 BasicCegarLoop]: 21 mSDtfsCounter, 25 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-04-06 13:00:01,856 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [25 Valid, 104 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-04-06 13:00:01,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states.
[2022-04-06 13:00:01,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 29.
[2022-04-06 13:00:01,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 19 states have (on average 1.105263157894737) internal successors, (21), 19 states have internal predecessors, (21), 6 states have call successors, (6), 5 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2022-04-06 13:00:01,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 31 transitions.
[2022-04-06 13:00:01,862 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 31 transitions. Word has length 29
[2022-04-06 13:00:01,862 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-04-06 13:00:01,862 INFO L478 AbstractCegarLoop]: Abstraction has 29 states and 31 transitions.
[2022-04-06 13:00:01,862 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.111111111111111) internal successors, (19), 7 states have internal predecessors, (19), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5)
[2022-04-06 13:00:01,863 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions.
[2022-04-06 13:00:01,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33
[2022-04-06 13:00:01,863 INFO L491 BasicCegarLoop]: Found error trace
[2022-04-06 13:00:01,863 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-04-06 13:00:01,894 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2022-04-06 13:00:02,078 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-04-06 13:00:02,079 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-04-06 13:00:02,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-04-06 13:00:02,079 INFO L85 PathProgramCache]: Analyzing trace with hash 1668946595, now seen corresponding path program 1 times
[2022-04-06 13:00:02,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-04-06 13:00:02,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940304572]
[2022-04-06 13:00:02,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-06 13:00:02,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-04-06 13:00:02,090 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2022-04-06 13:00:02,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [189408058]
[2022-04-06 13:00:02,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-06 13:00:02,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-04-06 13:00:02,091 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-04-06 13:00:02,092 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)
[2022-04-06 13:00:02,107 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2022-04-06 13:00:02,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-06 13:00:02,138 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 7 conjunts are in the unsatisfiable core
[2022-04-06 13:00:02,140 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-04-06 13:00:02,218 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2022-04-06 13:00:02,218 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-04-06 13:00:02,311 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2022-04-06 13:00:02,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-04-06 13:00:02,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940304572]
[2022-04-06 13:00:02,312 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2022-04-06 13:00:02,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [189408058]
[2022-04-06 13:00:02,312 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [189408058] provided 0 perfect and 2 imperfect interpolant sequences
[2022-04-06 13:00:02,312 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2022-04-06 13:00:02,312 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8
[2022-04-06 13:00:02,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592009087]
[2022-04-06 13:00:02,313 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2022-04-06 13:00:02,313 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-04-06 13:00:02,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-04-06 13:00:02,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-04-06 13:00:02,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56
[2022-04-06 13:00:02,314 INFO L87 Difference]: Start difference. First operand 29 states and 31 transitions. Second operand has 8 states, 8 states have (on average 4.375) internal successors, (35), 8 states have internal predecessors, (35), 6 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (8), 4 states have call predecessors, (8), 5 states have call successors, (8)
[2022-04-06 13:00:02,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-06 13:00:02,364 INFO L93 Difference]: Finished difference Result 61 states and 68 transitions.
[2022-04-06 13:00:02,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2022-04-06 13:00:02,365 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.375) internal successors, (35), 8 states have internal predecessors, (35), 6 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (8), 4 states have call predecessors, (8), 5 states have call successors, (8) Word has length 32
[2022-04-06 13:00:02,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-04-06 13:00:02,366 INFO L225 Difference]: With dead ends: 61
[2022-04-06 13:00:02,366 INFO L226 Difference]: Without dead ends: 56
[2022-04-06 13:00:02,366 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110
[2022-04-06 13:00:02,367 INFO L913 BasicCegarLoop]: 29 mSDtfsCounter, 32 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-04-06 13:00:02,367 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 94 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-04-06 13:00:02,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states.
[2022-04-06 13:00:02,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56.
[2022-04-06 13:00:02,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 40 states have (on average 1.125) internal successors, (45), 40 states have internal predecessors, (45), 9 states have call successors, (9), 8 states have call predecessors, (9), 6 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7)
[2022-04-06 13:00:02,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 61 transitions.
[2022-04-06 13:00:02,375 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 61 transitions. Word has length 32
[2022-04-06 13:00:02,375 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-04-06 13:00:02,376 INFO L478 AbstractCegarLoop]: Abstraction has 56 states and 61 transitions.
[2022-04-06 13:00:02,376 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.375) internal successors, (35), 8 states have internal predecessors, (35), 6 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (8), 4 states have call predecessors, (8), 5 states have call successors, (8)
[2022-04-06 13:00:02,376 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 61 transitions.
[2022-04-06 13:00:02,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60
[2022-04-06 13:00:02,377 INFO L491 BasicCegarLoop]: Found error trace
[2022-04-06 13:00:02,377 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-04-06 13:00:02,405 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0
[2022-04-06 13:00:02,591 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-04-06 13:00:02,592 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-04-06 13:00:02,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-04-06 13:00:02,595 INFO L85 PathProgramCache]: Analyzing trace with hash -906969448, now seen corresponding path program 2 times
[2022-04-06 13:00:02,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-04-06 13:00:02,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134197580]
[2022-04-06 13:00:02,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-06 13:00:02,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-04-06 13:00:02,607 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2022-04-06 13:00:02,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [432448992]
[2022-04-06 13:00:02,607 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2022-04-06 13:00:02,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-04-06 13:00:02,608 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-04-06 13:00:02,608 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)
[2022-04-06 13:00:02,640 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2022-04-06 13:00:02,665 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2022-04-06 13:00:02,665 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2022-04-06 13:00:02,666 INFO L263 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 13 conjunts are in the unsatisfiable core
[2022-04-06 13:00:02,668 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-04-06 13:00:02,812 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 8 proven. 62 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2022-04-06 13:00:02,812 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-04-06 13:00:02,938 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 8 proven. 38 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked.
[2022-04-06 13:00:02,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-04-06 13:00:02,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134197580]
[2022-04-06 13:00:02,939 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2022-04-06 13:00:02,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [432448992]
[2022-04-06 13:00:02,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [432448992] provided 0 perfect and 2 imperfect interpolant sequences
[2022-04-06 13:00:02,939 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2022-04-06 13:00:02,939 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8
[2022-04-06 13:00:02,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185751395]
[2022-04-06 13:00:02,940 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2022-04-06 13:00:02,941 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-04-06 13:00:02,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-04-06 13:00:02,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-04-06 13:00:02,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2022-04-06 13:00:02,942 INFO L87 Difference]: Start difference. First operand 56 states and 61 transitions. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 7 states have call successors, (15), 7 states have call predecessors, (15), 6 states have return successors, (13), 5 states have call predecessors, (13), 6 states have call successors, (13)
[2022-04-06 13:00:03,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-06 13:00:03,018 INFO L93 Difference]: Finished difference Result 70 states and 76 transitions.
[2022-04-06 13:00:03,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2022-04-06 13:00:03,020 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 7 states have call successors, (15), 7 states have call predecessors, (15), 6 states have return successors, (13), 5 states have call predecessors, (13), 6 states have call successors, (13) Word has length 59
[2022-04-06 13:00:03,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-04-06 13:00:03,023 INFO L225 Difference]: With dead ends: 70
[2022-04-06 13:00:03,023 INFO L226 Difference]: Without dead ends: 65
[2022-04-06 13:00:03,024 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 110 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=51, Invalid=81, Unknown=0, NotChecked=0, Total=132
[2022-04-06 13:00:03,026 INFO L913 BasicCegarLoop]: 30 mSDtfsCounter, 18 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-04-06 13:00:03,026 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 102 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-04-06 13:00:03,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states.
[2022-04-06 13:00:03,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65.
[2022-04-06 13:00:03,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 47 states have (on average 1.127659574468085) internal successors, (53), 47 states have internal predecessors, (53), 10 states have call successors, (10), 9 states have call predecessors, (10), 7 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8)
[2022-04-06 13:00:03,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 71 transitions.
[2022-04-06 13:00:03,046 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 71 transitions. Word has length 59
[2022-04-06 13:00:03,046 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-04-06 13:00:03,046 INFO L478 AbstractCegarLoop]: Abstraction has 65 states and 71 transitions.
[2022-04-06 13:00:03,047 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 7 states have call successors, (15), 7 states have call predecessors, (15), 6 states have return successors, (13), 5 states have call predecessors, (13), 6 states have call successors, (13)
[2022-04-06 13:00:03,047 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 71 transitions.
[2022-04-06 13:00:03,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69
[2022-04-06 13:00:03,055 INFO L491 BasicCegarLoop]: Found error trace
[2022-04-06 13:00:03,055 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-04-06 13:00:03,078 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0
[2022-04-06 13:00:03,255 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-04-06 13:00:03,256 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-04-06 13:00:03,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-04-06 13:00:03,256 INFO L85 PathProgramCache]: Analyzing trace with hash 1572135395, now seen corresponding path program 3 times
[2022-04-06 13:00:03,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-04-06 13:00:03,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828071023]
[2022-04-06 13:00:03,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-06 13:00:03,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-04-06 13:00:03,291 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2022-04-06 13:00:03,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [755644637]
[2022-04-06 13:00:03,291 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2022-04-06 13:00:03,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-04-06 13:00:03,291 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-04-06 13:00:03,294 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-04-06 13:00:03,325 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2022-04-06 13:00:03,355 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s)
[2022-04-06 13:00:03,356 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat
[2022-04-06 13:00:03,356 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2022-04-06 13:00:03,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-04-06 13:00:03,406 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2022-04-06 13:00:03,406 INFO L618 BasicCegarLoop]: Counterexample is feasible
[2022-04-06 13:00:03,419 INFO L788 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2022-04-06 13:00:03,445 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0
[2022-04-06 13:00:03,639 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-04-06 13:00:03,642 INFO L719 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1]
[2022-04-06 13:00:03,644 INFO L178 ceAbstractionStarter]: Computing trace abstraction results
[2022-04-06 13:00:03,677 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.04 01:00:03 BasicIcfg
[2022-04-06 13:00:03,677 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2022-04-06 13:00:03,678 INFO L158 Benchmark]: Toolchain (without parser) took 4131.23ms. Allocated memory was 199.2MB in the beginning and 260.0MB in the end (delta: 60.8MB). Free memory was 138.7MB in the beginning and 227.7MB in the end (delta: -89.0MB). There was no memory consumed. Max. memory is 8.0GB.
[2022-04-06 13:00:03,678 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 199.2MB. Free memory was 154.9MB in the beginning and 154.8MB in the end (delta: 83.2kB). There was no memory consumed. Max. memory is 8.0GB.
[2022-04-06 13:00:03,678 INFO L158 Benchmark]: CACSL2BoogieTranslator took 193.44ms. Allocated memory is still 199.2MB. Free memory was 138.6MB in the beginning and 168.9MB in the end (delta: -30.3MB). Peak memory consumption was 12.8MB. Max. memory is 8.0GB.
[2022-04-06 13:00:03,678 INFO L158 Benchmark]: Boogie Preprocessor took 31.39ms. Allocated memory is still 199.2MB. Free memory was 168.9MB in the beginning and 167.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
[2022-04-06 13:00:03,679 INFO L158 Benchmark]: RCFGBuilder took 237.48ms. Allocated memory is still 199.2MB. Free memory was 167.4MB in the beginning and 157.5MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB.
[2022-04-06 13:00:03,679 INFO L158 Benchmark]: IcfgTransformer took 17.02ms. Allocated memory is still 199.2MB. Free memory was 157.5MB in the beginning and 156.2MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB.
[2022-04-06 13:00:03,679 INFO L158 Benchmark]: TraceAbstraction took 3644.80ms. Allocated memory was 199.2MB in the beginning and 260.0MB in the end (delta: 60.8MB). Free memory was 155.7MB in the beginning and 227.7MB in the end (delta: -72.0MB). There was no memory consumed. Max. memory is 8.0GB.
[2022-04-06 13:00:03,680 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.10ms. Allocated memory is still 199.2MB. Free memory was 154.9MB in the beginning and 154.8MB in the end (delta: 83.2kB). There was no memory consumed. Max. memory is 8.0GB.
* CACSL2BoogieTranslator took 193.44ms. Allocated memory is still 199.2MB. Free memory was 138.6MB in the beginning and 168.9MB in the end (delta: -30.3MB). Peak memory consumption was 12.8MB. Max. memory is 8.0GB.
* Boogie Preprocessor took 31.39ms. Allocated memory is still 199.2MB. Free memory was 168.9MB in the beginning and 167.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
* RCFGBuilder took 237.48ms. Allocated memory is still 199.2MB. Free memory was 167.4MB in the beginning and 157.5MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB.
* IcfgTransformer took 17.02ms. Allocated memory is still 199.2MB. Free memory was 157.5MB in the beginning and 156.2MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB.
* TraceAbstraction took 3644.80ms. Allocated memory was 199.2MB in the beginning and 260.0MB in the end (delta: 60.8MB). Free memory was 155.7MB in the beginning and 227.7MB in the end (delta: -72.0MB). There was no memory consumed. Max. memory is 8.0GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: ErrorAutomatonStatistics
NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
- CounterExampleResult [Line: 18]: a call to reach_error is reachable
a call to reach_error is reachable
We found a FailurePath:
[L22] int counter = 0;
VAL [\old(counter)=7, counter=0]
[L24] int x1, x2;
[L25] int y1, y2, y3;
[L26] x1 = __VERIFIER_nondet_int()
[L27] x2 = __VERIFIER_nondet_int()
[L29] CALL assume_abort_if_not(x1 >= 0)
VAL [\old(cond)=1, \old(counter)=0, counter=0]
[L13] COND FALSE !(!cond)
VAL [\old(cond)=1, \old(counter)=0, cond=1, counter=0]
[L29] RET assume_abort_if_not(x1 >= 0)
VAL [\old(counter)=0, counter=0, x1=6, x2=1]
[L30] CALL assume_abort_if_not(x2 != 0)
VAL [\old(cond)=1, \old(counter)=0, counter=0]
[L13] COND FALSE !(!cond)
VAL [\old(cond)=1, \old(counter)=0, cond=1, counter=0]
[L30] RET assume_abort_if_not(x2 != 0)
VAL [\old(counter)=0, counter=0, x1=6, x2=1]
[L32] y1 = 0
[L33] y2 = 0
[L34] y3 = x1
VAL [\old(counter)=0, counter=0, x1=6, x2=1, y1=0, y2=0, y3=6]
[L36] EXPR counter++
VAL [\old(counter)=0, counter=1, counter++=0, x1=6, x2=1, y1=0, y2=0, y3=6]
[L36] COND TRUE counter++<5
[L37] CALL __VERIFIER_assert(y1*x2 + y2 + y3 == x1)
VAL [\old(cond)=1, \old(counter)=0, counter=1]
[L16] COND FALSE !(!(cond))
VAL [\old(cond)=1, \old(counter)=0, cond=1, counter=1]
[L37] RET __VERIFIER_assert(y1*x2 + y2 + y3 == x1)
VAL [\old(counter)=0, counter=1, x1=6, x2=1, y1=0, y2=0, y3=6]
[L39] COND FALSE !(!(y3 != 0))
VAL [\old(counter)=0, counter=1, x1=6, x2=1, y1=0, y2=0, y3=6]
[L41] COND TRUE y2 + 1 == x2
[L42] y1 = y1 + 1
[L43] y2 = 0
[L44] y3 = y3 - 1
VAL [\old(counter)=0, counter=1, x1=6, x2=1, y1=1, y2=0, y3=5]
[L36] EXPR counter++
VAL [\old(counter)=0, counter=2, counter++=1, x1=6, x2=1, y1=1, y2=0, y3=5]
[L36] COND TRUE counter++<5
[L37] CALL __VERIFIER_assert(y1*x2 + y2 + y3 == x1)
VAL [\old(cond)=1, \old(counter)=0, counter=2]
[L16] COND FALSE !(!(cond))
VAL [\old(cond)=1, \old(counter)=0, cond=1, counter=2]
[L37] RET __VERIFIER_assert(y1*x2 + y2 + y3 == x1)
VAL [\old(counter)=0, counter=2, x1=6, x2=1, y1=1, y2=0, y3=5]
[L39] COND FALSE !(!(y3 != 0))
VAL [\old(counter)=0, counter=2, x1=6, x2=1, y1=1, y2=0, y3=5]
[L41] COND TRUE y2 + 1 == x2
[L42] y1 = y1 + 1
[L43] y2 = 0
[L44] y3 = y3 - 1
VAL [\old(counter)=0, counter=2, x1=6, x2=1, y1=2, y2=0, y3=4]
[L36] EXPR counter++
VAL [\old(counter)=0, counter=3, counter++=2, x1=6, x2=1, y1=2, y2=0, y3=4]
[L36] COND TRUE counter++<5
[L37] CALL __VERIFIER_assert(y1*x2 + y2 + y3 == x1)
VAL [\old(cond)=1, \old(counter)=0, counter=3]
[L16] COND FALSE !(!(cond))
VAL [\old(cond)=1, \old(counter)=0, cond=1, counter=3]
[L37] RET __VERIFIER_assert(y1*x2 + y2 + y3 == x1)
VAL [\old(counter)=0, counter=3, x1=6, x2=1, y1=2, y2=0, y3=4]
[L39] COND FALSE !(!(y3 != 0))
VAL [\old(counter)=0, counter=3, x1=6, x2=1, y1=2, y2=0, y3=4]
[L41] COND TRUE y2 + 1 == x2
[L42] y1 = y1 + 1
[L43] y2 = 0
[L44] y3 = y3 - 1
VAL [\old(counter)=0, counter=3, x1=6, x2=1, y1=3, y2=0, y3=3]
[L36] EXPR counter++
VAL [\old(counter)=0, counter=4, counter++=3, x1=6, x2=1, y1=3, y2=0, y3=3]
[L36] COND TRUE counter++<5
[L37] CALL __VERIFIER_assert(y1*x2 + y2 + y3 == x1)
VAL [\old(cond)=1, \old(counter)=0, counter=4]
[L16] COND FALSE !(!(cond))
VAL [\old(cond)=1, \old(counter)=0, cond=1, counter=4]
[L37] RET __VERIFIER_assert(y1*x2 + y2 + y3 == x1)
VAL [\old(counter)=0, counter=4, x1=6, x2=1, y1=3, y2=0, y3=3]
[L39] COND FALSE !(!(y3 != 0))
VAL [\old(counter)=0, counter=4, x1=6, x2=1, y1=3, y2=0, y3=3]
[L41] COND TRUE y2 + 1 == x2
[L42] y1 = y1 + 1
[L43] y2 = 0
[L44] y3 = y3 - 1
VAL [\old(counter)=0, counter=4, x1=6, x2=1, y1=4, y2=0, y3=2]
[L36] EXPR counter++
VAL [\old(counter)=0, counter=5, counter++=4, x1=6, x2=1, y1=4, y2=0, y3=2]
[L36] COND TRUE counter++<5
[L37] CALL __VERIFIER_assert(y1*x2 + y2 + y3 == x1)
VAL [\old(cond)=1, \old(counter)=0, counter=5]
[L16] COND FALSE !(!(cond))
VAL [\old(cond)=1, \old(counter)=0, cond=1, counter=5]
[L37] RET __VERIFIER_assert(y1*x2 + y2 + y3 == x1)
VAL [\old(counter)=0, counter=5, x1=6, x2=1, y1=4, y2=0, y3=2]
[L39] COND FALSE !(!(y3 != 0))
VAL [\old(counter)=0, counter=5, x1=6, x2=1, y1=4, y2=0, y3=2]
[L41] COND TRUE y2 + 1 == x2
[L42] y1 = y1 + 1
[L43] y2 = 0
[L44] y3 = y3 - 1
VAL [\old(counter)=0, counter=5, x1=6, x2=1, y1=5, y2=0, y3=1]
[L36] EXPR counter++
VAL [\old(counter)=0, counter=6, counter++=5, x1=6, x2=1, y1=5, y2=0, y3=1]
[L36] COND FALSE !(counter++<5)
[L50] CALL __VERIFIER_assert(y1*x2 + y2 == x1)
VAL [\old(cond)=0, \old(counter)=0, counter=6]
[L16] COND TRUE !(cond)
VAL [\old(cond)=0, \old(counter)=0, cond=0, counter=6]
[L18] reach_error()
VAL [\old(cond)=0, \old(counter)=0, cond=0, counter=6]
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 5 procedures, 30 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.5s, OverallIterations: 7, TraceHistogramMax: 6, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 108 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 104 mSDsluCounter, 510 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 352 mSDsCounter, 50 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 210 IncrementalHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 50 mSolverCounterUnsat, 158 mSDtfsCounter, 210 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 303 GetRequests, 260 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=65occurred in iteration=6, InterpolantAutomatonStates: 45, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 9 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 256 NumberOfCodeBlocks, 256 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 299 ConstructedInterpolants, 0 QuantifiedInterpolants, 699 SizeOfPredicates, 18 NumberOfNonLiveVariables, 591 ConjunctsInSsa, 49 ConjunctsInUnsatCore, 9 InterpolantComputations, 3 PerfectInterpolantSequences, 82/188 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate proved your program to be incorrect!
[2022-04-06 13:00:03,710 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...