/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_BITWISE.epf -i ../../../trunk/examples/svcomp/nla-digbench-scaling/cohendiv-ll_unwindbound1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 08:51:50,528 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 08:51:50,530 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 08:51:50,590 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 08:51:50,590 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 08:51:50,591 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 08:51:50,592 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 08:51:50,593 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 08:51:50,594 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 08:51:50,595 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 08:51:50,595 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 08:51:50,596 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 08:51:50,596 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 08:51:50,597 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 08:51:50,598 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 08:51:50,598 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 08:51:50,602 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 08:51:50,605 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 08:51:50,608 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 08:51:50,611 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 08:51:50,613 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 08:51:50,614 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 08:51:50,617 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 08:51:50,618 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 08:51:50,622 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 08:51:50,623 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 08:51:50,623 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 08:51:50,624 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 08:51:50,624 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 08:51:50,624 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 08:51:50,625 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 08:51:50,625 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 08:51:50,626 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 08:51:50,627 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 08:51:50,628 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 08:51:50,628 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 08:51:50,628 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 08:51:50,628 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 08:51:50,628 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 08:51:50,629 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 08:51:50,629 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 08:51:50,630 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_BITWISE.epf [2022-01-10 08:51:50,653 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 08:51:50,653 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 08:51:50,653 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 08:51:50,653 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 08:51:50,654 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 08:51:50,655 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 08:51:50,655 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 08:51:50,655 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 08:51:50,655 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 08:51:50,655 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 08:51:50,655 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 08:51:50,656 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 08:51:50,656 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 08:51:50,656 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 08:51:50,656 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 08:51:50,656 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 08:51:50,656 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 08:51:50,656 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 08:51:50,656 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 08:51:50,656 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 08:51:50,656 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 08:51:50,657 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 08:51:50,657 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 08:51:50,657 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 08:51:50,657 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 08:51:50,658 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 08:51:50,658 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 08:51:50,658 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 08:51:50,658 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 08:51:50,658 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 08:51:50,658 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 08:51:50,658 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 08:51:50,659 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 08:51:50,659 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_BITWISE WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 08:51:50,830 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 08:51:50,860 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 08:51:50,862 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 08:51:50,862 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 08:51:50,863 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 08:51:50,863 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/cohendiv-ll_unwindbound1.c [2022-01-10 08:51:50,902 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4fd68b0af/a376e5b98968489abb40cc9ca6b683d4/FLAG089688e35 [2022-01-10 08:51:51,269 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 08:51:51,269 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/cohendiv-ll_unwindbound1.c [2022-01-10 08:51:51,277 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4fd68b0af/a376e5b98968489abb40cc9ca6b683d4/FLAG089688e35 [2022-01-10 08:51:51,286 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4fd68b0af/a376e5b98968489abb40cc9ca6b683d4 [2022-01-10 08:51:51,290 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 08:51:51,292 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 08:51:51,294 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 08:51:51,294 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 08:51:51,296 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 08:51:51,297 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 08:51:51" (1/1) ... [2022-01-10 08:51:51,297 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bc4b935 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:51:51, skipping insertion in model container [2022-01-10 08:51:51,298 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 08:51:51" (1/1) ... [2022-01-10 08:51:51,301 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 08:51:51,310 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 08:51:51,440 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/cohendiv-ll_unwindbound1.c[576,589] [2022-01-10 08:51:51,456 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 08:51:51,463 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 08:51:51,472 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/cohendiv-ll_unwindbound1.c[576,589] [2022-01-10 08:51:51,491 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 08:51:51,501 INFO L208 MainTranslator]: Completed translation [2022-01-10 08:51:51,501 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:51:51 WrapperNode [2022-01-10 08:51:51,501 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 08:51:51,502 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 08:51:51,502 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 08:51:51,502 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 08:51:51,506 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:51:51" (1/1) ... [2022-01-10 08:51:51,511 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:51:51" (1/1) ... [2022-01-10 08:51:51,529 INFO L137 Inliner]: procedures = 14, calls = 15, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 99 [2022-01-10 08:51:51,529 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 08:51:51,529 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 08:51:51,529 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 08:51:51,529 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 08:51:51,534 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:51:51" (1/1) ... [2022-01-10 08:51:51,534 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:51:51" (1/1) ... [2022-01-10 08:51:51,543 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:51:51" (1/1) ... [2022-01-10 08:51:51,543 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:51:51" (1/1) ... [2022-01-10 08:51:51,553 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:51:51" (1/1) ... [2022-01-10 08:51:51,555 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:51:51" (1/1) ... [2022-01-10 08:51:51,556 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:51:51" (1/1) ... [2022-01-10 08:51:51,557 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 08:51:51,558 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 08:51:51,558 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 08:51:51,558 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 08:51:51,559 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:51:51" (1/1) ... [2022-01-10 08:51:51,567 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 08:51:51,574 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 08:51:51,596 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-10 08:51:51,634 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-10 08:51:51,652 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 08:51:51,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 08:51:51,652 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 08:51:51,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 08:51:51,695 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 08:51:51,696 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 08:51:52,053 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 08:51:52,057 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 08:51:52,058 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-01-10 08:51:52,059 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 08:51:52 BoogieIcfgContainer [2022-01-10 08:51:52,059 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 08:51:52,059 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 08:51:52,059 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 08:51:52,060 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 08:51:52,062 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 08:51:52" (1/1) ... [2022-01-10 08:51:52,154 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 08:51:52 BasicIcfg [2022-01-10 08:51:52,154 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 08:51:52,155 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 08:51:52,155 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 08:51:52,157 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 08:51:52,157 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 08:51:51" (1/4) ... [2022-01-10 08:51:52,157 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e78deb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 08:51:52, skipping insertion in model container [2022-01-10 08:51:52,157 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:51:51" (2/4) ... [2022-01-10 08:51:52,157 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e78deb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 08:51:52, skipping insertion in model container [2022-01-10 08:51:52,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 08:51:52" (3/4) ... [2022-01-10 08:51:52,158 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e78deb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 08:51:52, skipping insertion in model container [2022-01-10 08:51:52,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 08:51:52" (4/4) ... [2022-01-10 08:51:52,158 INFO L111 eAbstractionObserver]: Analyzing ICFG cohendiv-ll_unwindbound1.cTransformedIcfg [2022-01-10 08:51:52,161 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 08:51:52,161 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2022-01-10 08:51:52,187 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 08:51:52,191 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-10 08:51:52,191 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-01-10 08:51:52,198 INFO L276 IsEmpty]: Start isEmpty. Operand has 43 states, 35 states have (on average 1.6) internal successors, (56), 42 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:51:52,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-01-10 08:51:52,201 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 08:51:52,201 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 08:51:52,202 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-01-10 08:51:52,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 08:51:52,209 INFO L85 PathProgramCache]: Analyzing trace with hash 305617642, now seen corresponding path program 1 times [2022-01-10 08:51:52,214 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 08:51:52,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932735644] [2022-01-10 08:51:52,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 08:51:52,215 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 08:51:52,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 08:51:52,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 08:51:52,349 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 08:51:52,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932735644] [2022-01-10 08:51:52,350 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932735644] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 08:51:52,350 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 08:51:52,350 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 08:51:52,351 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261199154] [2022-01-10 08:51:52,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 08:51:52,354 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 08:51:52,354 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 08:51:52,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 08:51:52,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 08:51:52,376 INFO L87 Difference]: Start difference. First operand has 43 states, 35 states have (on average 1.6) internal successors, (56), 42 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:51:52,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 08:51:52,391 INFO L93 Difference]: Finished difference Result 83 states and 108 transitions. [2022-01-10 08:51:52,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 08:51:52,393 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-01-10 08:51:52,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 08:51:52,397 INFO L225 Difference]: With dead ends: 83 [2022-01-10 08:51:52,397 INFO L226 Difference]: Without dead ends: 39 [2022-01-10 08:51:52,399 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 08:51:52,401 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 08:51:52,402 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 08:51:52,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-01-10 08:51:52,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2022-01-10 08:51:52,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 32 states have (on average 1.3125) internal successors, (42), 38 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:51:52,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 42 transitions. [2022-01-10 08:51:52,427 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 42 transitions. Word has length 8 [2022-01-10 08:51:52,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 08:51:52,427 INFO L470 AbstractCegarLoop]: Abstraction has 39 states and 42 transitions. [2022-01-10 08:51:52,427 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:51:52,428 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 42 transitions. [2022-01-10 08:51:52,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-01-10 08:51:52,429 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 08:51:52,429 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 08:51:52,429 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 08:51:52,430 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-01-10 08:51:52,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 08:51:52,432 INFO L85 PathProgramCache]: Analyzing trace with hash 334278571, now seen corresponding path program 1 times [2022-01-10 08:51:52,432 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 08:51:52,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577736934] [2022-01-10 08:51:52,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 08:51:52,433 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 08:51:52,476 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-10 08:51:52,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [949698278] [2022-01-10 08:51:52,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 08:51:52,477 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 08:51:52,477 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 08:51:52,479 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-10 08:51:52,516 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-10 08:51:52,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 08:51:52,552 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 7 conjunts are in the unsatisfiable core [2022-01-10 08:51:52,557 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 08:51:52,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 08:51:52,622 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 08:51:52,622 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 08:51:52,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577736934] [2022-01-10 08:51:52,623 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-10 08:51:52,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [949698278] [2022-01-10 08:51:52,626 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [949698278] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 08:51:52,626 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 08:51:52,626 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 08:51:52,627 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029640433] [2022-01-10 08:51:52,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 08:51:52,628 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 08:51:52,628 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 08:51:52,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 08:51:52,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 08:51:52,629 INFO L87 Difference]: Start difference. First operand 39 states and 42 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:51:52,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 08:51:52,765 INFO L93 Difference]: Finished difference Result 55 states and 59 transitions. [2022-01-10 08:51:52,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 08:51:52,766 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-01-10 08:51:52,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 08:51:52,766 INFO L225 Difference]: With dead ends: 55 [2022-01-10 08:51:52,766 INFO L226 Difference]: Without dead ends: 53 [2022-01-10 08:51:52,767 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 08:51:52,768 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 27 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 08:51:52,768 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 90 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 08:51:52,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-01-10 08:51:52,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 42. [2022-01-10 08:51:52,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 35 states have (on average 1.3142857142857143) internal successors, (46), 41 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:51:52,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 46 transitions. [2022-01-10 08:51:52,774 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 46 transitions. Word has length 8 [2022-01-10 08:51:52,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 08:51:52,774 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 46 transitions. [2022-01-10 08:51:52,774 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:51:52,774 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 46 transitions. [2022-01-10 08:51:52,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-01-10 08:51:52,774 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 08:51:52,775 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 08:51:52,791 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-01-10 08:51:52,975 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 08:51:52,975 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-01-10 08:51:52,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 08:51:52,976 INFO L85 PathProgramCache]: Analyzing trace with hash 1772666438, now seen corresponding path program 1 times [2022-01-10 08:51:52,976 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 08:51:52,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138357685] [2022-01-10 08:51:52,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 08:51:52,976 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 08:51:52,990 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-10 08:51:52,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [578535064] [2022-01-10 08:51:52,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 08:51:52,990 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 08:51:52,990 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 08:51:52,997 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-10 08:51:53,028 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-10 08:51:53,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 08:51:53,074 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 5 conjunts are in the unsatisfiable core [2022-01-10 08:51:53,075 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 08:51:53,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 08:51:53,160 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 08:51:53,160 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 08:51:53,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138357685] [2022-01-10 08:51:53,160 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-10 08:51:53,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [578535064] [2022-01-10 08:51:53,161 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [578535064] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 08:51:53,161 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 08:51:53,161 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 08:51:53,161 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113864127] [2022-01-10 08:51:53,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 08:51:53,161 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 08:51:53,162 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 08:51:53,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 08:51:53,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 08:51:53,163 INFO L87 Difference]: Start difference. First operand 42 states and 46 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:51:53,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 08:51:53,186 INFO L93 Difference]: Finished difference Result 46 states and 49 transitions. [2022-01-10 08:51:53,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 08:51:53,186 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-01-10 08:51:53,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 08:51:53,187 INFO L225 Difference]: With dead ends: 46 [2022-01-10 08:51:53,187 INFO L226 Difference]: Without dead ends: 42 [2022-01-10 08:51:53,188 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 08:51:53,190 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 0 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 08:51:53,190 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 113 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 08:51:53,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-01-10 08:51:53,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2022-01-10 08:51:53,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 35 states have (on average 1.2857142857142858) internal successors, (45), 41 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:51:53,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 45 transitions. [2022-01-10 08:51:53,200 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 45 transitions. Word has length 9 [2022-01-10 08:51:53,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 08:51:53,201 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 45 transitions. [2022-01-10 08:51:53,201 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:51:53,201 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 45 transitions. [2022-01-10 08:51:53,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-01-10 08:51:53,201 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 08:51:53,202 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 08:51:53,219 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-01-10 08:51:53,417 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-01-10 08:51:53,418 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-01-10 08:51:53,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 08:51:53,418 INFO L85 PathProgramCache]: Analyzing trace with hash -880803985, now seen corresponding path program 1 times [2022-01-10 08:51:53,419 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 08:51:53,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770402924] [2022-01-10 08:51:53,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 08:51:53,419 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 08:51:53,450 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-10 08:51:53,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2038867478] [2022-01-10 08:51:53,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 08:51:53,451 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 08:51:53,452 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 08:51:53,453 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) [2022-01-10 08:51:53,454 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-01-10 08:51:53,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 08:51:53,517 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 9 conjunts are in the unsatisfiable core [2022-01-10 08:51:53,520 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 08:51:53,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 08:51:53,847 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 08:51:53,847 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 08:51:53,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770402924] [2022-01-10 08:51:53,847 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-10 08:51:53,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2038867478] [2022-01-10 08:51:53,847 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2038867478] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 08:51:53,847 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 08:51:53,847 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 08:51:53,847 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976665452] [2022-01-10 08:51:53,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 08:51:53,848 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 08:51:53,848 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 08:51:53,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 08:51:53,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 08:51:53,849 INFO L87 Difference]: Start difference. First operand 42 states and 45 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:51:54,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 08:51:54,116 INFO L93 Difference]: Finished difference Result 72 states and 77 transitions. [2022-01-10 08:51:54,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 08:51:54,117 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-01-10 08:51:54,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 08:51:54,118 INFO L225 Difference]: With dead ends: 72 [2022-01-10 08:51:54,118 INFO L226 Difference]: Without dead ends: 64 [2022-01-10 08:51:54,118 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 08:51:54,118 INFO L933 BasicCegarLoop]: 33 mSDtfsCounter, 41 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 08:51:54,119 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [41 Valid, 76 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-10 08:51:54,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2022-01-10 08:51:54,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 57. [2022-01-10 08:51:54,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 50 states have (on average 1.3) internal successors, (65), 56 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:51:54,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 65 transitions. [2022-01-10 08:51:54,123 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 65 transitions. Word has length 10 [2022-01-10 08:51:54,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 08:51:54,123 INFO L470 AbstractCegarLoop]: Abstraction has 57 states and 65 transitions. [2022-01-10 08:51:54,123 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:51:54,123 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 65 transitions. [2022-01-10 08:51:54,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-01-10 08:51:54,123 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 08:51:54,124 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 08:51:54,129 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-01-10 08:51:54,324 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 08:51:54,326 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-01-10 08:51:54,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 08:51:54,327 INFO L85 PathProgramCache]: Analyzing trace with hash -1371418543, now seen corresponding path program 1 times [2022-01-10 08:51:54,327 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 08:51:54,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508174875] [2022-01-10 08:51:54,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 08:51:54,327 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 08:51:54,346 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-10 08:51:54,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1370136233] [2022-01-10 08:51:54,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 08:51:54,346 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 08:51:54,346 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 08:51:54,349 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) [2022-01-10 08:51:54,350 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-01-10 08:51:54,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 08:51:54,449 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 9 conjunts are in the unsatisfiable core [2022-01-10 08:51:54,449 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 08:51:54,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 08:51:54,594 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 08:51:54,594 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 08:51:54,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508174875] [2022-01-10 08:51:54,594 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-10 08:51:54,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1370136233] [2022-01-10 08:51:54,594 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1370136233] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 08:51:54,594 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 08:51:54,594 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 08:51:54,595 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291348659] [2022-01-10 08:51:54,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 08:51:54,595 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 08:51:54,595 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 08:51:54,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 08:51:54,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 08:51:54,596 INFO L87 Difference]: Start difference. First operand 57 states and 65 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:51:54,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 08:51:54,619 INFO L93 Difference]: Finished difference Result 94 states and 106 transitions. [2022-01-10 08:51:54,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 08:51:54,619 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-01-10 08:51:54,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 08:51:54,621 INFO L225 Difference]: With dead ends: 94 [2022-01-10 08:51:54,622 INFO L226 Difference]: Without dead ends: 48 [2022-01-10 08:51:54,622 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 08:51:54,623 INFO L933 BasicCegarLoop]: 39 mSDtfsCounter, 0 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 08:51:54,623 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 149 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 08:51:54,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2022-01-10 08:51:54,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2022-01-10 08:51:54,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 41 states have (on average 1.2439024390243902) internal successors, (51), 47 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:51:54,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 51 transitions. [2022-01-10 08:51:54,633 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 51 transitions. Word has length 15 [2022-01-10 08:51:54,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 08:51:54,634 INFO L470 AbstractCegarLoop]: Abstraction has 48 states and 51 transitions. [2022-01-10 08:51:54,635 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:51:54,635 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 51 transitions. [2022-01-10 08:51:54,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-01-10 08:51:54,635 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 08:51:54,635 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 08:51:54,640 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-01-10 08:51:54,839 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 08:51:54,840 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-01-10 08:51:54,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 08:51:54,840 INFO L85 PathProgramCache]: Analyzing trace with hash 2061915033, now seen corresponding path program 1 times [2022-01-10 08:51:54,840 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 08:51:54,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156780257] [2022-01-10 08:51:54,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 08:51:54,841 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 08:51:54,868 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-10 08:51:54,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [874421036] [2022-01-10 08:51:54,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 08:51:54,869 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 08:51:54,869 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 08:51:54,870 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) [2022-01-10 08:51:54,871 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-01-10 08:51:55,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 08:51:55,052 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 16 conjunts are in the unsatisfiable core [2022-01-10 08:51:55,053 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 08:51:55,453 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 08:51:55,453 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 08:51:55,707 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 08:51:55,707 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 08:51:55,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156780257] [2022-01-10 08:51:55,707 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-10 08:51:55,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [874421036] [2022-01-10 08:51:55,707 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [874421036] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 08:51:55,707 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-10 08:51:55,707 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2022-01-10 08:51:55,708 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666055723] [2022-01-10 08:51:55,708 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-10 08:51:55,708 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-10 08:51:55,708 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 08:51:55,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-10 08:51:55,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2022-01-10 08:51:55,708 INFO L87 Difference]: Start difference. First operand 48 states and 51 transitions. Second operand has 12 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 11 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:51:55,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 08:51:55,795 INFO L93 Difference]: Finished difference Result 55 states and 58 transitions. [2022-01-10 08:51:55,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 08:51:55,796 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 11 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-01-10 08:51:55,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 08:51:55,796 INFO L225 Difference]: With dead ends: 55 [2022-01-10 08:51:55,796 INFO L226 Difference]: Without dead ends: 20 [2022-01-10 08:51:55,796 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2022-01-10 08:51:55,797 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 24 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 4 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 08:51:55,797 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 63 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 19 Invalid, 0 Unknown, 4 Unchecked, 0.0s Time] [2022-01-10 08:51:55,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-01-10 08:51:55,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2022-01-10 08:51:55,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.0) internal successors, (19), 19 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:51:55,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 19 transitions. [2022-01-10 08:51:55,799 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 19 transitions. Word has length 18 [2022-01-10 08:51:55,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 08:51:55,799 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 19 transitions. [2022-01-10 08:51:55,799 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 11 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:51:55,799 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 19 transitions. [2022-01-10 08:51:55,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-01-10 08:51:55,800 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 08:51:55,800 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 08:51:55,810 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-01-10 08:51:56,003 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 08:51:56,004 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-01-10 08:51:56,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 08:51:56,004 INFO L85 PathProgramCache]: Analyzing trace with hash -505178088, now seen corresponding path program 1 times [2022-01-10 08:51:56,004 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 08:51:56,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535344482] [2022-01-10 08:51:56,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 08:51:56,004 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 08:51:56,016 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-10 08:51:56,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1684743201] [2022-01-10 08:51:56,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 08:51:56,016 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 08:51:56,016 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 08:51:56,017 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) [2022-01-10 08:51:56,018 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-01-10 08:51:56,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 08:51:56,218 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 29 conjunts are in the unsatisfiable core [2022-01-10 08:51:56,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 08:52:01,188 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 08:52:01,188 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 08:52:12,004 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 2 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 08:52:12,005 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 08:52:12,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535344482] [2022-01-10 08:52:12,005 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-10 08:52:12,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1684743201] [2022-01-10 08:52:12,005 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1684743201] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 08:52:12,005 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-10 08:52:12,005 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6] total 11 [2022-01-10 08:52:12,005 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549873085] [2022-01-10 08:52:12,005 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-10 08:52:12,005 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-10 08:52:12,006 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 08:52:12,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-10 08:52:12,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=79, Unknown=1, NotChecked=0, Total=110 [2022-01-10 08:52:12,008 INFO L87 Difference]: Start difference. First operand 20 states and 19 transitions. Second operand has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 11 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:52:14,123 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-10 08:52:14,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 08:52:14,728 INFO L93 Difference]: Finished difference Result 20 states and 19 transitions. [2022-01-10 08:52:14,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 08:52:14,728 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 11 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-01-10 08:52:14,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 08:52:14,729 INFO L225 Difference]: With dead ends: 20 [2022-01-10 08:52:14,729 INFO L226 Difference]: Without dead ends: 0 [2022-01-10 08:52:14,729 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=68, Invalid=171, Unknown=1, NotChecked=0, Total=240 [2022-01-10 08:52:14,729 INFO L933 BasicCegarLoop]: 10 mSDtfsCounter, 33 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 14 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-01-10 08:52:14,730 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 37 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 30 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-01-10 08:52:14,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-10 08:52:14,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-10 08:52:14,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:52:14,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-10 08:52:14,730 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2022-01-10 08:52:14,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 08:52:14,730 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-10 08:52:14,731 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 11 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:52:14,731 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-10 08:52:14,731 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-10 08:52:14,732 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION (6 of 7 remaining) [2022-01-10 08:52:14,733 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2022-01-10 08:52:14,733 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (4 of 7 remaining) [2022-01-10 08:52:14,733 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (3 of 7 remaining) [2022-01-10 08:52:14,733 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (2 of 7 remaining) [2022-01-10 08:52:14,733 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (1 of 7 remaining) [2022-01-10 08:52:14,733 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2022-01-10 08:52:14,739 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-01-10 08:52:14,933 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 08:52:14,935 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-01-10 08:52:16,563 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-01-10 08:52:16,563 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-01-10 08:52:16,563 INFO L858 garLoopResultBuilder]: For program point L12(line 12) no Hoare annotation was computed. [2022-01-10 08:52:16,563 INFO L858 garLoopResultBuilder]: For program point L11(lines 11 13) no Hoare annotation was computed. [2022-01-10 08:52:16,564 INFO L854 garLoopResultBuilder]: At program point L37-3(lines 37 61) the Hoare annotation is: (let ((.cse6 (mod (div |ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int| 2147483648) 2))) (let ((.cse3 (* 18446744069414584320 .cse6))) (let ((.cse0 (<= 0 ~counter~0Int)) (.cse1 (<= 0 |ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int|)) (.cse4 (< |ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int| 4294967296)) (.cse10 (+ .cse3 |ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int|)) (.cse9 (<= 0 |ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int|)) (.cse11 (<= (+ |ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int| 1) (* (mod |ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int| 2147483648) 2)))) (or (let ((.cse2 (mod (div |ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int| 2147483648) 2))) (let ((.cse5 (* 18446744069414584320 .cse2))) (and .cse0 .cse1 (< ~counter~0Int 4294967296) (<= 1 |ULTIMATE.start_ULTIMATE.start___VERIFIER_assert_~cond#1Int|) (= (mod (+ (mod (+ (* .cse2 4294967296) (* 18446744073709551615 |ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int|)) 18446744073709551616) .cse3 |ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int|) 18446744073709551616) |ULTIMATE.start_ULTIMATE.start_main_~r~0#1Int|) .cse4 (<= (+ (* (mod (+ |ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int| (* .cse2 9223372032559808512)) 9223372036854775808) 2) .cse3 |ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int|) (+ |ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int| .cse5 (* 2 (mod (+ |ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int| (* 9223372032559808512 .cse6)) 9223372036854775808)))) (exists ((|aux_div_v_ULTIMATE.start_ULTIMATE.start_main_#t~post7#1Int_2_77| Int)) (let ((.cse7 (* |aux_div_v_ULTIMATE.start_ULTIMATE.start_main_#t~post7#1Int_2_77| 4294967296))) (let ((.cse8 (+ .cse7 ~counter~0Int))) (and (<= (div (+ (- 2) .cse7 ~counter~0Int) (- 4294967296)) (div (+ (* |aux_div_v_ULTIMATE.start_ULTIMATE.start_main_#t~post7#1Int_2_77| (- 4294967296)) (* (- 1) ~counter~0Int) 2) 4294967296)) (<= 1 .cse8) (not (< (* 2 (mod (+ 2147483647 ~counter~0Int) 2147483648)) .cse8)))))) (= |ULTIMATE.start_ULTIMATE.start_main_~q~0#1Int| 1) .cse9 (= .cse10 (mod (+ (mod (* (+ |ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int| .cse5) (mod (+ |ULTIMATE.start_ULTIMATE.start_main_~q~0#1Int| |ULTIMATE.start_ULTIMATE.start_main_~a~0#1Int|) 18446744073709551616)) 18446744073709551616) (mod (+ |ULTIMATE.start_ULTIMATE.start_main_~r~0#1Int| (mod (* 18446744073709551615 |ULTIMATE.start_ULTIMATE.start_main_~b~0#1Int|) 18446744073709551616)) 18446744073709551616)) 18446744073709551616)) .cse11))) (and .cse0 .cse1 (= |ULTIMATE.start_ULTIMATE.start_main_~a~0#1Int| 0) (= |ULTIMATE.start_ULTIMATE.start_main_~b~0#1Int| 0) .cse4 (= |ULTIMATE.start_ULTIMATE.start_main_~r~0#1Int| .cse10) (<= |ULTIMATE.start_ULTIMATE.start_assume_abort_if_not_~cond#1Int| 1) (<= 0 |ULTIMATE.start_ULTIMATE.start_assume_abort_if_not_~cond#1Int|) (<= ~counter~0Int 0) .cse9 (= |ULTIMATE.start_ULTIMATE.start_main_~q~0#1Int| 0) .cse11))))) [2022-01-10 08:52:16,564 INFO L858 garLoopResultBuilder]: For program point L37-4(lines 37 61) no Hoare annotation was computed. [2022-01-10 08:52:16,564 INFO L858 garLoopResultBuilder]: For program point L37-1(lines 37 61) no Hoare annotation was computed. [2022-01-10 08:52:16,564 INFO L858 garLoopResultBuilder]: For program point L15-18(lines 15 18) no Hoare annotation was computed. [2022-01-10 08:52:16,564 INFO L858 garLoopResultBuilder]: For program point L15(lines 15 18) no Hoare annotation was computed. [2022-01-10 08:52:16,564 INFO L858 garLoopResultBuilder]: For program point L16-6(lines 16 17) no Hoare annotation was computed. [2022-01-10 08:52:16,564 INFO L861 garLoopResultBuilder]: At program point L15-20(lines 14 20) the Hoare annotation is: true [2022-01-10 08:52:16,564 INFO L858 garLoopResultBuilder]: For program point L16(lines 16 17) no Hoare annotation was computed. [2022-01-10 08:52:16,564 INFO L854 garLoopResultBuilder]: At program point L15-2(lines 14 20) the Hoare annotation is: (and (<= 0 ~counter~0Int) (<= 0 |ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int|) (< ~counter~0Int 4294967296) (<= 1 |ULTIMATE.start_ULTIMATE.start___VERIFIER_assert_~cond#1Int|) (<= (div (+ (- 1) ~counter~0Int) (- 4294967296)) (div (+ (* (- 1) ~counter~0Int) 1) 4294967296)) (< |ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int| 4294967296) (= |ULTIMATE.start_ULTIMATE.start_main_~r~0#1Int| (+ (* 18446744069414584320 (mod (div |ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int| 2147483648) 2)) |ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int|)) (<= 0 |ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int|) (= |ULTIMATE.start_ULTIMATE.start_main_~q~0#1Int| 0) (<= (+ |ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int| 1) (* (mod |ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int| 2147483648) 2))) [2022-01-10 08:52:16,564 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2022-01-10 08:52:16,564 INFO L861 garLoopResultBuilder]: At program point L64(lines 23 65) the Hoare annotation is: true [2022-01-10 08:52:16,564 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2022-01-10 08:52:16,564 INFO L858 garLoopResultBuilder]: For program point L15-3(lines 15 18) no Hoare annotation was computed. [2022-01-10 08:52:16,564 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-01-10 08:52:16,564 INFO L858 garLoopResultBuilder]: For program point L16-1(lines 16 17) no Hoare annotation was computed. [2022-01-10 08:52:16,565 INFO L854 garLoopResultBuilder]: At program point L15-5(lines 14 20) the Hoare annotation is: (and (<= 0 ~counter~0Int) (<= 0 |ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int|) (< ~counter~0Int 4294967296) (<= 1 |ULTIMATE.start_ULTIMATE.start___VERIFIER_assert_~cond#1Int|) (<= (div (+ (- 1) ~counter~0Int) (- 4294967296)) (div (+ (* (- 1) ~counter~0Int) 1) 4294967296)) (< |ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int| 4294967296) (= |ULTIMATE.start_ULTIMATE.start_main_~r~0#1Int| (+ (* 18446744069414584320 (mod (div |ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int| 2147483648) 2)) |ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int|)) (<= 0 |ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int|) (= |ULTIMATE.start_ULTIMATE.start_main_~q~0#1Int| 0) (<= (+ |ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int| 1) (* (mod |ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int| 2147483648) 2))) [2022-01-10 08:52:16,565 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-01-10 08:52:16,565 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2022-01-10 08:52:16,565 INFO L858 garLoopResultBuilder]: For program point L41(lines 41 42) no Hoare annotation was computed. [2022-01-10 08:52:16,565 INFO L854 garLoopResultBuilder]: At program point L46-3(lines 46 58) the Hoare annotation is: (let ((.cse1 (mod (div |ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int| 2147483648) 2))) (let ((.cse0 (* 18446744069414584320 .cse1))) (and (<= 0 ~counter~0Int) (<= 0 |ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int|) (< ~counter~0Int 4294967296) (<= 1 |ULTIMATE.start_ULTIMATE.start___VERIFIER_assert_~cond#1Int|) (<= (div (+ (- 1) ~counter~0Int) (- 4294967296)) (div (+ (* (- 1) ~counter~0Int) 1) 4294967296)) (< |ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int| 4294967296) (= |ULTIMATE.start_ULTIMATE.start_main_~r~0#1Int| (+ (* 18446744069414584320 (mod (div |ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int| 2147483648) 2)) |ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int|)) (= (+ |ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int| .cse0) |ULTIMATE.start_ULTIMATE.start_main_~b~0#1Int|) (= |ULTIMATE.start_ULTIMATE.start_main_~a~0#1Int| 1) (<= 0 |ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int|) (= |ULTIMATE.start_ULTIMATE.start_main_~q~0#1Int| 0) (<= (+ (* (mod (+ |ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int| (* .cse1 9223372032559808512)) 9223372036854775808) 2) |ULTIMATE.start_ULTIMATE.start_main_~r~0#1Int|) (+ |ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int| (* 2 (mod |ULTIMATE.start_ULTIMATE.start_main_~r~0#1Int| 9223372036854775808)) .cse0)) (<= (+ |ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int| 1) (* (mod |ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int| 2147483648) 2))))) [2022-01-10 08:52:16,565 INFO L858 garLoopResultBuilder]: For program point L46-4(lines 46 58) no Hoare annotation was computed. [2022-01-10 08:52:16,565 INFO L858 garLoopResultBuilder]: For program point L46-1(lines 46 58) no Hoare annotation was computed. [2022-01-10 08:52:16,565 INFO L858 garLoopResultBuilder]: For program point L15-6(lines 15 18) no Hoare annotation was computed. [2022-01-10 08:52:16,565 INFO L858 garLoopResultBuilder]: For program point L16-2(lines 16 17) no Hoare annotation was computed. [2022-01-10 08:52:16,565 INFO L854 garLoopResultBuilder]: At program point L15-8(lines 14 20) the Hoare annotation is: false [2022-01-10 08:52:16,565 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2022-01-10 08:52:16,565 INFO L858 garLoopResultBuilder]: For program point L15-9(lines 15 18) no Hoare annotation was computed. [2022-01-10 08:52:16,565 INFO L858 garLoopResultBuilder]: For program point L16-3(lines 16 17) no Hoare annotation was computed. [2022-01-10 08:52:16,565 INFO L854 garLoopResultBuilder]: At program point L15-11(lines 14 20) the Hoare annotation is: false [2022-01-10 08:52:16,565 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2022-01-10 08:52:16,565 INFO L858 garLoopResultBuilder]: For program point L15-12(lines 15 18) no Hoare annotation was computed. [2022-01-10 08:52:16,565 INFO L858 garLoopResultBuilder]: For program point L16-4(lines 16 17) no Hoare annotation was computed. [2022-01-10 08:52:16,566 INFO L854 garLoopResultBuilder]: At program point L15-14(lines 14 20) the Hoare annotation is: false [2022-01-10 08:52:16,566 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2022-01-10 08:52:16,566 INFO L858 garLoopResultBuilder]: For program point L51(lines 51 52) no Hoare annotation was computed. [2022-01-10 08:52:16,566 INFO L858 garLoopResultBuilder]: For program point L15-15(lines 15 18) no Hoare annotation was computed. [2022-01-10 08:52:16,566 INFO L858 garLoopResultBuilder]: For program point L16-5(lines 16 17) no Hoare annotation was computed. [2022-01-10 08:52:16,566 INFO L854 garLoopResultBuilder]: At program point L15-17(lines 14 20) the Hoare annotation is: false [2022-01-10 08:52:16,566 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2022-01-10 08:52:16,568 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-01-10 08:52:16,569 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-10 08:52:16,602 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: Cannot translate AuxVars back to Bitvector Sort |aux_div_v_ULTIMATE.start_ULTIMATE.start_main_#t~post7#1Int_2_77| at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.bvinttranslation.IntToBvBackTranslation.convert(IntToBvBackTranslation.java:88) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.cacheConvert(TermTransformer.java:131) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$Convert.walk(TermTransformer.java:79) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:272) at de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation.IcfgTransformationObserver.lambda$0(IcfgTransformationObserver.java:355) at de.uni_freiburg.informatik.ultimate.icfgtransformer.IcfgTransformationBacktranslator.translateExpression(IcfgTransformationBacktranslator.java:113) at de.uni_freiburg.informatik.ultimate.icfgtransformer.IcfgTransformationBacktranslator.translateExpression(IcfgTransformationBacktranslator.java:1) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpression(ModelTranslationContainer.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpressionToString(ModelTranslationContainer.java:89) at de.uni_freiburg.informatik.ultimate.core.lib.results.InvariantResult.getLongDescription(InvariantResult.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:86) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResultReporter.reportResult(CegarLoopResultReporter.java:141) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.createInvariantResults(TraceAbstractionStarter.java:453) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:192) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-01-10 08:52:16,604 INFO L158 Benchmark]: Toolchain (without parser) took 25311.61ms. Allocated memory was 257.9MB in the beginning and 486.5MB in the end (delta: 228.6MB). Free memory was 199.5MB in the beginning and 393.7MB in the end (delta: -194.3MB). Peak memory consumption was 35.7MB. Max. memory is 8.0GB. [2022-01-10 08:52:16,604 INFO L158 Benchmark]: CDTParser took 0.08ms. Allocated memory is still 257.9MB. Free memory is still 216.2MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-10 08:52:16,604 INFO L158 Benchmark]: CACSL2BoogieTranslator took 206.77ms. Allocated memory was 257.9MB in the beginning and 404.8MB in the end (delta: 146.8MB). Free memory was 199.3MB in the beginning and 373.7MB in the end (delta: -174.4MB). Peak memory consumption was 6.9MB. Max. memory is 8.0GB. [2022-01-10 08:52:16,604 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.24ms. Allocated memory is still 404.8MB. Free memory was 373.1MB in the beginning and 371.6MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-10 08:52:16,604 INFO L158 Benchmark]: Boogie Preprocessor took 27.89ms. Allocated memory is still 404.8MB. Free memory was 371.6MB in the beginning and 370.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-10 08:52:16,605 INFO L158 Benchmark]: RCFGBuilder took 501.25ms. Allocated memory is still 404.8MB. Free memory was 370.0MB in the beginning and 357.9MB in the end (delta: 12.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-01-10 08:52:16,605 INFO L158 Benchmark]: IcfgTransformer took 94.49ms. Allocated memory is still 404.8MB. Free memory was 357.9MB in the beginning and 349.0MB in the end (delta: 8.9MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-01-10 08:52:16,605 INFO L158 Benchmark]: TraceAbstraction took 24448.50ms. Allocated memory was 404.8MB in the beginning and 486.5MB in the end (delta: 81.8MB). Free memory was 348.5MB in the beginning and 393.7MB in the end (delta: -45.2MB). Peak memory consumption was 38.1MB. Max. memory is 8.0GB. [2022-01-10 08:52:16,606 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.08ms. Allocated memory is still 257.9MB. Free memory is still 216.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 206.77ms. Allocated memory was 257.9MB in the beginning and 404.8MB in the end (delta: 146.8MB). Free memory was 199.3MB in the beginning and 373.7MB in the end (delta: -174.4MB). Peak memory consumption was 6.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 27.24ms. Allocated memory is still 404.8MB. Free memory was 373.1MB in the beginning and 371.6MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 27.89ms. Allocated memory is still 404.8MB. Free memory was 371.6MB in the beginning and 370.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 501.25ms. Allocated memory is still 404.8MB. Free memory was 370.0MB in the beginning and 357.9MB in the end (delta: 12.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * IcfgTransformer took 94.49ms. Allocated memory is still 404.8MB. Free memory was 357.9MB in the beginning and 349.0MB in the end (delta: 8.9MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 24448.50ms. Allocated memory was 404.8MB in the beginning and 486.5MB in the end (delta: 81.8MB). Free memory was 348.5MB in the beginning and 393.7MB in the end (delta: -45.2MB). Peak memory consumption was 38.1MB. 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 - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 43 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 24.4s, OverallIterations: 7, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.6s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 1 mSolverCounterUnknown, 125 SdHoareTripleChecker+Valid, 2.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 125 mSDsluCounter, 574 SdHoareTripleChecker+Invalid, 2.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 4 IncrementalHoareTripleChecker+Unchecked, 348 mSDsCounter, 51 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 134 IncrementalHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 51 mSolverCounterUnsat, 226 mSDtfsCounter, 134 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 118 GetRequests, 81 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 3.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=57occurred in iteration=4, InterpolantAutomatonStates: 37, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 18 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 10 PreInvPairs, 17 NumberOfFragments, 450 HoareAnnotationTreeSize, 10 FomulaSimplifications, 40 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 82 FormulaSimplificationTreeSizeReductionInter, 1.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 17.1s InterpolantComputationTime, 87 NumberOfCodeBlocks, 87 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 115 ConstructedInterpolants, 3 QuantifiedInterpolants, 2877 SizeOfPredicates, 21 NumberOfNonLiveVariables, 894 ConjunctsInSsa, 75 ConjunctsInUnsatCore, 9 InterpolantComputations, 5 PerfectInterpolantSequences, 2/10 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 - AllSpecificationsHoldResult: All specifications hold 7 specifications checked. All of them hold - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 46]: Loop Invariant Derived loop invariant: (((((((((((~bvule32(1bv32, cond) && ~bvsle33((if !(0bv33 == ~bvurem33(~bvadd16(8589934591bv33, ~zero_extendFrom32To33(counter)), 4294967296bv33)) then (if ~bvadd16(8589934591bv33, ~zero_extendFrom32To33(counter))[32:32] == 1bv1 then ~bvadd16(~bvsdiv33(~bvadd16(8589934591bv33, ~zero_extendFrom32To33(counter)), 4294967296bv33), 1bv33) else ~bvsdiv33(~bvadd16(8589934591bv33, ~zero_extendFrom32To33(counter)), 4294967296bv33)) else ~bvsdiv33(~bvadd16(8589934591bv33, ~zero_extendFrom32To33(counter)), 4294967296bv33)), ~bvadd16(~sign_extendFrom8To32(~bvmul32(18446744073709551615bv64, ~zero_extendFrom32To64(counter))), 1bv65)[64:32])) && ~bvule32(0bv32, counter)) && a == 1bv64) && ~zero_extendFrom64To129(b) == ~bvadd16(~zero_extendFrom32To129(y), ~zero_extendFrom128To129(~bvmul32(18446744069414584320bv128, ~zero_extendFrom1To128(y[31:31][0:0]))))) && ~bvule33(~bvadd16(~zero_extendFrom32To33(y), 1bv33), ~zero_extendFrom32To33(y[30:0] ++ 0bv1))) && ~bvule32(0bv32, x)) && ~bvult64(~zero_extendFrom32To33(x), 4294967296bv33)) && ~bvule32(0bv32, y)) && q == 0bv64) && ~bvadd16(~zero_extendFrom128To129(~bvmul32(18446744069414584320bv128, ~zero_extendFrom1To128(x[31:31][0:0]))), ~zero_extendFrom32To129(x)) == ~zero_extendFrom64To129(r)) && ~bvult64(~zero_extendFrom32To33(counter), 4294967296bv33)) && ~bvule129(~zero_extendFrom65To129(~bvadd16(~zero_extendFrom64To65(~bvadd16(~zero_extendFrom32To127(y), ~zero_extendFrom126To127(~bvmul32(~zero_extendFrom1To126(y[31:31][0:0]), 9223372032559808512bv126)))[62:0] ++ 0bv1), ~zero_extendFrom64To65(r))), ~bvadd16(~bvadd16(~zero_extendFrom32To129(y), ~zero_extendFrom64To129(~bvmul32(~zero_extendFrom63To64(r[62:0]), 2bv64))), ~zero_extendFrom128To129(~bvmul32(18446744069414584320bv128, ~zero_extendFrom1To128(y[31:31][0:0]))))) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: ((((((((~bvule32(1bv32, cond) && ~bvsle33((if !(0bv33 == ~bvurem33(~bvadd16(8589934591bv33, ~zero_extendFrom32To33(counter)), 4294967296bv33)) then (if ~bvadd16(8589934591bv33, ~zero_extendFrom32To33(counter))[32:32] == 1bv1 then ~bvadd16(~bvsdiv33(~bvadd16(8589934591bv33, ~zero_extendFrom32To33(counter)), 4294967296bv33), 1bv33) else ~bvsdiv33(~bvadd16(8589934591bv33, ~zero_extendFrom32To33(counter)), 4294967296bv33)) else ~bvsdiv33(~bvadd16(8589934591bv33, ~zero_extendFrom32To33(counter)), 4294967296bv33)), ~bvadd16(~sign_extendFrom8To32(~bvmul32(18446744073709551615bv64, ~zero_extendFrom32To64(counter))), 1bv65)[64:32])) && ~bvule32(0bv32, counter)) && ~bvule33(~bvadd16(~zero_extendFrom32To33(y), 1bv33), ~zero_extendFrom32To33(y[30:0] ++ 0bv1))) && ~bvule32(0bv32, x)) && ~bvult64(~zero_extendFrom32To33(x), 4294967296bv33)) && ~bvule32(0bv32, y)) && q == 0bv64) && ~bvadd16(~zero_extendFrom128To129(~bvmul32(18446744069414584320bv128, ~zero_extendFrom1To128(x[31:31][0:0]))), ~zero_extendFrom32To129(x)) == ~zero_extendFrom64To129(r)) && ~bvult64(~zero_extendFrom32To33(counter), 4294967296bv33) - ExceptionOrErrorResult: UnsupportedOperationException: Cannot translate AuxVars back to Bitvector Sort |aux_div_v_ULTIMATE.start_ULTIMATE.start_main_#t~post7#1Int_2_77| de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Cannot translate AuxVars back to Bitvector Sort |aux_div_v_ULTIMATE.start_ULTIMATE.start_main_#t~post7#1Int_2_77|: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.bvinttranslation.IntToBvBackTranslation.convert(IntToBvBackTranslation.java:88) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-01-10 08:52:16,665 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...