./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_valuebound5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_ac98ae27-af4c-4743-ab50-69432312eedd/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_ac98ae27-af4c-4743-ab50-69432312eedd/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ac98ae27-af4c-4743-ab50-69432312eedd/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ac98ae27-af4c-4743-ab50-69432312eedd/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_valuebound5.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ac98ae27-af4c-4743-ab50-69432312eedd/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ac98ae27-af4c-4743-ab50-69432312eedd/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bc4d2acb145e333c6a4b88114f00bb3ad7905a78 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 00:41:18,475 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:41:18,479 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:41:18,563 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:41:18,565 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:41:18,571 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:41:18,574 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:41:18,587 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:41:18,590 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:41:18,598 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:41:18,600 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:41:18,603 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:41:18,603 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:41:18,608 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:41:18,610 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:41:18,612 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:41:18,614 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:41:18,619 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:41:18,623 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:41:18,643 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:41:18,645 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:41:18,647 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:41:18,650 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:41:18,652 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:41:18,663 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:41:18,664 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:41:18,664 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:41:18,668 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:41:18,669 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:41:18,670 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:41:18,671 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:41:18,673 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:41:18,675 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:41:18,677 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:41:18,678 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:41:18,679 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:41:18,680 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:41:18,681 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:41:18,681 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:41:18,682 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:41:18,683 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:41:18,686 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ac98ae27-af4c-4743-ab50-69432312eedd/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-30 00:41:18,739 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:41:18,739 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:41:18,742 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:41:18,743 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:41:18,743 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:41:18,743 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:41:18,743 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:41:18,744 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:41:18,744 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:41:18,744 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:41:18,746 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 00:41:18,746 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 00:41:18,747 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 00:41:18,747 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:41:18,747 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:41:18,747 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:41:18,748 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 00:41:18,748 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:41:18,748 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:41:18,749 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 00:41:18,749 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 00:41:18,749 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 00:41:18,750 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:41:18,750 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 00:41:18,750 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 00:41:18,750 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 00:41:18,751 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 00:41:18,751 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 00:41:18,751 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:41:18,752 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_ac98ae27-af4c-4743-ab50-69432312eedd/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_ac98ae27-af4c-4743-ab50-69432312eedd/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bc4d2acb145e333c6a4b88114f00bb3ad7905a78 [2020-11-30 00:41:19,166 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:41:19,204 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:41:19,208 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:41:19,212 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:41:19,213 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:41:19,215 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ac98ae27-af4c-4743-ab50-69432312eedd/bin/uautomizer/../../sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_valuebound5.c [2020-11-30 00:41:19,324 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ac98ae27-af4c-4743-ab50-69432312eedd/bin/uautomizer/data/7af154426/96168a5014f6493e9396caef857bbbef/FLAG6f6a190cd [2020-11-30 00:41:20,049 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:41:20,050 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ac98ae27-af4c-4743-ab50-69432312eedd/sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_valuebound5.c [2020-11-30 00:41:20,058 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ac98ae27-af4c-4743-ab50-69432312eedd/bin/uautomizer/data/7af154426/96168a5014f6493e9396caef857bbbef/FLAG6f6a190cd [2020-11-30 00:41:20,386 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ac98ae27-af4c-4743-ab50-69432312eedd/bin/uautomizer/data/7af154426/96168a5014f6493e9396caef857bbbef [2020-11-30 00:41:20,389 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:41:20,391 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:41:20,394 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:41:20,394 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:41:20,407 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:41:20,408 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:41:20" (1/1) ... [2020-11-30 00:41:20,410 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@773d8913 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:41:20, skipping insertion in model container [2020-11-30 00:41:20,411 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:41:20" (1/1) ... [2020-11-30 00:41:20,422 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:41:20,450 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:41:20,699 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:41:20,712 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:41:20,759 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:41:20,781 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:41:20,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:41:20 WrapperNode [2020-11-30 00:41:20,783 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:41:20,788 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:41:20,789 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:41:20,789 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:41:20,799 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:41:20" (1/1) ... [2020-11-30 00:41:20,814 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:41:20" (1/1) ... [2020-11-30 00:41:20,849 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:41:20,850 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:41:20,850 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:41:20,851 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:41:20,862 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:41:20" (1/1) ... [2020-11-30 00:41:20,863 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:41:20" (1/1) ... [2020-11-30 00:41:20,865 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:41:20" (1/1) ... [2020-11-30 00:41:20,865 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:41:20" (1/1) ... [2020-11-30 00:41:20,870 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:41:20" (1/1) ... [2020-11-30 00:41:20,876 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:41:20" (1/1) ... [2020-11-30 00:41:20,878 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:41:20" (1/1) ... [2020-11-30 00:41:20,880 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:41:20,882 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:41:20,882 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:41:20,882 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:41:20,884 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:41:20" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ac98ae27-af4c-4743-ab50-69432312eedd/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 00:41:20,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 00:41:21,000 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:41:21,000 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:41:21,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:41:21,368 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:41:21,369 INFO L298 CfgBuilder]: Removed 19 assume(true) statements. [2020-11-30 00:41:21,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:41:21 BoogieIcfgContainer [2020-11-30 00:41:21,382 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:41:21,384 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 00:41:21,391 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 00:41:21,396 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 00:41:21,397 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 12:41:20" (1/3) ... [2020-11-30 00:41:21,398 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c6f62bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:41:21, skipping insertion in model container [2020-11-30 00:41:21,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:41:20" (2/3) ... [2020-11-30 00:41:21,399 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c6f62bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:41:21, skipping insertion in model container [2020-11-30 00:41:21,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:41:21" (3/3) ... [2020-11-30 00:41:21,401 INFO L111 eAbstractionObserver]: Analyzing ICFG prodbin-ll_valuebound5.c [2020-11-30 00:41:21,415 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 00:41:21,427 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-11-30 00:41:21,467 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-11-30 00:41:21,512 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 00:41:21,514 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 00:41:21,515 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 00:41:21,515 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:41:21,516 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:41:21,516 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 00:41:21,516 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:41:21,517 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 00:41:21,544 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2020-11-30 00:41:21,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-30 00:41:21,552 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:41:21,554 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:41:21,555 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:41:21,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:41:21,564 INFO L82 PathProgramCache]: Analyzing trace with hash 330581779, now seen corresponding path program 1 times [2020-11-30 00:41:21,577 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:41:21,578 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422612840] [2020-11-30 00:41:21,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:41:21,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:41:21,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:41:21,770 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422612840] [2020-11-30 00:41:21,771 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:41:21,772 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 00:41:21,773 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186513748] [2020-11-30 00:41:21,778 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-30 00:41:21,779 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:41:21,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-30 00:41:21,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 00:41:21,799 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 2 states. [2020-11-30 00:41:21,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:41:21,820 INFO L93 Difference]: Finished difference Result 43 states and 58 transitions. [2020-11-30 00:41:21,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 00:41:21,822 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-11-30 00:41:21,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:41:21,832 INFO L225 Difference]: With dead ends: 43 [2020-11-30 00:41:21,833 INFO L226 Difference]: Without dead ends: 19 [2020-11-30 00:41:21,836 INFO L677 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 [2020-11-30 00:41:21,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-11-30 00:41:21,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2020-11-30 00:41:21,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-11-30 00:41:21,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2020-11-30 00:41:21,877 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 11 [2020-11-30 00:41:21,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:41:21,878 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2020-11-30 00:41:21,878 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-30 00:41:21,879 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2020-11-30 00:41:21,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-30 00:41:21,879 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:41:21,880 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:41:21,880 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 00:41:21,880 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:41:21,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:41:21,882 INFO L82 PathProgramCache]: Analyzing trace with hash -1507472743, now seen corresponding path program 1 times [2020-11-30 00:41:21,882 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:41:21,883 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962564821] [2020-11-30 00:41:21,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:41:21,912 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-30 00:41:21,913 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1580473159] [2020-11-30 00:41:21,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ac98ae27-af4c-4743-ab50-69432312eedd/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:41:22,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:41:22,071 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-30 00:41:22,077 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:41:22,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:41:22,215 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962564821] [2020-11-30 00:41:22,216 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 00:41:22,216 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1580473159] [2020-11-30 00:41:22,217 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:41:22,217 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 00:41:22,217 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276494036] [2020-11-30 00:41:22,223 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:41:22,224 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:41:22,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:41:22,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:41:22,227 INFO L87 Difference]: Start difference. First operand 19 states and 20 transitions. Second operand 4 states. [2020-11-30 00:41:22,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:41:22,394 INFO L93 Difference]: Finished difference Result 32 states and 34 transitions. [2020-11-30 00:41:22,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 00:41:22,396 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-11-30 00:41:22,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:41:22,397 INFO L225 Difference]: With dead ends: 32 [2020-11-30 00:41:22,398 INFO L226 Difference]: Without dead ends: 30 [2020-11-30 00:41:22,399 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:41:22,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-11-30 00:41:22,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 21. [2020-11-30 00:41:22,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-11-30 00:41:22,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2020-11-30 00:41:22,409 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 11 [2020-11-30 00:41:22,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:41:22,411 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2020-11-30 00:41:22,411 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:41:22,411 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2020-11-30 00:41:22,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-30 00:41:22,413 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:41:22,414 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:41:22,619 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-11-30 00:41:22,620 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:41:22,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:41:22,621 INFO L82 PathProgramCache]: Analyzing trace with hash -936571807, now seen corresponding path program 1 times [2020-11-30 00:41:22,623 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:41:22,624 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076686546] [2020-11-30 00:41:22,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:41:22,678 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-30 00:41:22,683 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1719736265] [2020-11-30 00:41:22,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ac98ae27-af4c-4743-ab50-69432312eedd/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:41:22,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:41:22,754 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-30 00:41:22,756 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:41:22,816 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-11-30 00:41:22,817 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:41:22,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:41:22,886 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076686546] [2020-11-30 00:41:22,886 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 00:41:22,886 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1719736265] [2020-11-30 00:41:22,887 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:41:22,887 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-30 00:41:22,887 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819341788] [2020-11-30 00:41:22,887 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-30 00:41:22,888 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:41:22,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 00:41:22,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:41:22,890 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 5 states. [2020-11-30 00:41:23,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:41:23,032 INFO L93 Difference]: Finished difference Result 28 states and 30 transitions. [2020-11-30 00:41:23,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 00:41:23,033 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-11-30 00:41:23,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:41:23,034 INFO L225 Difference]: With dead ends: 28 [2020-11-30 00:41:23,034 INFO L226 Difference]: Without dead ends: 24 [2020-11-30 00:41:23,035 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-30 00:41:23,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2020-11-30 00:41:23,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 22. [2020-11-30 00:41:23,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-11-30 00:41:23,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2020-11-30 00:41:23,041 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 14 [2020-11-30 00:41:23,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:41:23,041 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2020-11-30 00:41:23,041 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-30 00:41:23,041 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2020-11-30 00:41:23,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-30 00:41:23,042 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:41:23,042 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:41:23,243 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:41:23,244 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:41:23,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:41:23,245 INFO L82 PathProgramCache]: Analyzing trace with hash 1947257600, now seen corresponding path program 1 times [2020-11-30 00:41:23,245 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:41:23,245 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005270286] [2020-11-30 00:41:23,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:41:23,280 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-30 00:41:23,281 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1690983974] [2020-11-30 00:41:23,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ac98ae27-af4c-4743-ab50-69432312eedd/bin/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:41:23,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:41:23,353 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 28 conjunts are in the unsatisfiable core [2020-11-30 00:41:23,355 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:41:23,686 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:41:23,728 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:41:23,752 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:41:59,478 WARN L193 SmtUtils]: Spent 35.69 s on a formula simplification. DAG size of input: 26 DAG size of output: 25 [2020-11-30 00:42:03,892 WARN L193 SmtUtils]: Spent 4.41 s on a formula simplification. DAG size of input: 25 DAG size of output: 24 [2020-11-30 00:42:06,273 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:42:06,273 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005270286] [2020-11-30 00:42:06,274 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 00:42:06,274 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1690983974] [2020-11-30 00:42:06,274 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-30 00:42:06,274 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-11-30 00:42:06,275 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705908955] [2020-11-30 00:42:06,275 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-30 00:42:06,275 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:42:06,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-30 00:42:06,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-30 00:42:06,277 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand 8 states. [2020-11-30 00:42:06,688 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2020-11-30 00:42:07,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:42:07,259 INFO L93 Difference]: Finished difference Result 38 states and 41 transitions. [2020-11-30 00:42:07,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-30 00:42:07,264 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 16 [2020-11-30 00:42:07,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:42:07,265 INFO L225 Difference]: With dead ends: 38 [2020-11-30 00:42:07,265 INFO L226 Difference]: Without dead ends: 36 [2020-11-30 00:42:07,266 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-11-30 00:42:07,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-11-30 00:42:07,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 26. [2020-11-30 00:42:07,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-11-30 00:42:07,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions. [2020-11-30 00:42:07,283 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 28 transitions. Word has length 16 [2020-11-30 00:42:07,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:42:07,284 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 28 transitions. [2020-11-30 00:42:07,284 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-30 00:42:07,285 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2020-11-30 00:42:07,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-30 00:42:07,287 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:42:07,287 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:42:07,503 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:42:07,503 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:42:07,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:42:07,504 INFO L82 PathProgramCache]: Analyzing trace with hash 1949104642, now seen corresponding path program 1 times [2020-11-30 00:42:07,504 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:42:07,504 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852831867] [2020-11-30 00:42:07,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:42:07,527 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-30 00:42:07,528 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [452484304] [2020-11-30 00:42:07,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ac98ae27-af4c-4743-ab50-69432312eedd/bin/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:42:07,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:42:07,583 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 24 conjunts are in the unsatisfiable core [2020-11-30 00:42:07,585 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:42:07,645 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 1] term [2020-11-30 00:42:07,646 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:42:07,943 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2020-11-30 00:42:07,947 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-11-30 00:42:07,947 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:42:08,196 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2020-11-30 00:42:08,709 WARN L193 SmtUtils]: Spent 425.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 21 [2020-11-30 00:42:08,954 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 20 [2020-11-30 00:42:08,981 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:42:08,999 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-30 00:42:09,268 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 17 [2020-11-30 00:42:09,441 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 1 [2020-11-30 00:42:09,490 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:42:09,491 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852831867] [2020-11-30 00:42:09,491 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 00:42:09,491 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [452484304] [2020-11-30 00:42:09,491 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-30 00:42:09,491 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-11-30 00:42:09,492 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734909545] [2020-11-30 00:42:09,492 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-30 00:42:09,492 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:42:09,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-30 00:42:09,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-11-30 00:42:09,494 INFO L87 Difference]: Start difference. First operand 26 states and 28 transitions. Second operand 10 states. [2020-11-30 00:42:10,064 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 19 [2020-11-30 00:42:10,644 WARN L193 SmtUtils]: Spent 434.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 23 [2020-11-30 00:42:11,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:42:11,319 INFO L93 Difference]: Finished difference Result 40 states and 43 transitions. [2020-11-30 00:42:11,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-30 00:42:11,320 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2020-11-30 00:42:11,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:42:11,321 INFO L225 Difference]: With dead ends: 40 [2020-11-30 00:42:11,322 INFO L226 Difference]: Without dead ends: 38 [2020-11-30 00:42:11,323 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2020-11-30 00:42:11,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-11-30 00:42:11,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 26. [2020-11-30 00:42:11,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-11-30 00:42:11,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions. [2020-11-30 00:42:11,330 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 28 transitions. Word has length 16 [2020-11-30 00:42:11,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:42:11,330 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 28 transitions. [2020-11-30 00:42:11,331 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-30 00:42:11,331 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2020-11-30 00:42:11,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-30 00:42:11,332 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:42:11,332 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:42:11,532 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:42:11,533 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:42:11,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:42:11,534 INFO L82 PathProgramCache]: Analyzing trace with hash -1366237542, now seen corresponding path program 1 times [2020-11-30 00:42:11,534 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:42:11,535 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480982266] [2020-11-30 00:42:11,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:42:11,568 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-30 00:42:11,568 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2059184896] [2020-11-30 00:42:11,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ac98ae27-af4c-4743-ab50-69432312eedd/bin/uautomizer/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:42:11,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:42:11,647 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 10 conjunts are in the unsatisfiable core [2020-11-30 00:42:11,651 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:42:12,440 WARN L193 SmtUtils]: Spent 765.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 22 [2020-11-30 00:42:12,444 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 2, 1] term [2020-11-30 00:42:12,444 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:42:12,745 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2020-11-30 00:42:13,011 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-30 00:42:13,011 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480982266] [2020-11-30 00:42:13,012 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 00:42:13,012 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2059184896] [2020-11-30 00:42:13,012 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:42:13,012 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-30 00:42:13,012 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179668871] [2020-11-30 00:42:13,013 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-30 00:42:13,013 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:42:13,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 00:42:13,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-30 00:42:13,014 INFO L87 Difference]: Start difference. First operand 26 states and 28 transitions. Second operand 6 states. [2020-11-30 00:42:19,363 WARN L193 SmtUtils]: Spent 2.75 s on a formula simplification. DAG size of input: 24 DAG size of output: 20 [2020-11-30 00:42:20,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:42:20,928 INFO L93 Difference]: Finished difference Result 28 states and 30 transitions. [2020-11-30 00:42:20,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 00:42:20,929 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2020-11-30 00:42:20,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:42:20,930 INFO L225 Difference]: With dead ends: 28 [2020-11-30 00:42:20,930 INFO L226 Difference]: Without dead ends: 24 [2020-11-30 00:42:20,931 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-30 00:42:20,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2020-11-30 00:42:20,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 22. [2020-11-30 00:42:20,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-11-30 00:42:20,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 24 transitions. [2020-11-30 00:42:20,940 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 24 transitions. Word has length 19 [2020-11-30 00:42:20,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:42:20,941 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 24 transitions. [2020-11-30 00:42:20,941 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-30 00:42:20,941 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2020-11-30 00:42:20,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-30 00:42:20,942 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:42:20,943 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:42:21,143 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2020-11-30 00:42:21,143 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:42:21,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:42:21,144 INFO L82 PathProgramCache]: Analyzing trace with hash 1355346681, now seen corresponding path program 2 times [2020-11-30 00:42:21,144 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:42:21,144 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157345492] [2020-11-30 00:42:21,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:42:21,159 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-30 00:42:21,159 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [254062474] [2020-11-30 00:42:21,160 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ac98ae27-af4c-4743-ab50-69432312eedd/bin/uautomizer/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:42:21,225 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-30 00:42:21,225 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-30 00:42:21,227 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 46 conjunts are in the unsatisfiable core [2020-11-30 00:42:21,229 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:42:21,252 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 1] term [2020-11-30 00:42:21,253 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:42:21,339 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-11-30 00:42:21,339 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:42:21,717 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 17 [2020-11-30 00:42:21,972 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 20 [2020-11-30 00:42:24,960 WARN L193 SmtUtils]: Spent 2.13 s on a formula simplification. DAG size of input: 32 DAG size of output: 22 [2020-11-30 00:42:25,628 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 24 [2020-11-30 00:42:25,958 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 28 [2020-11-30 00:42:26,010 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-30 00:42:26,044 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-30 00:42:26,100 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-30 00:42:26,275 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:42:26,277 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157345492] [2020-11-30 00:42:26,278 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 00:42:26,278 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [254062474] [2020-11-30 00:42:26,279 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-30 00:42:26,279 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-11-30 00:42:26,279 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135213822] [2020-11-30 00:42:26,280 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-11-30 00:42:26,280 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:42:26,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-11-30 00:42:26,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2020-11-30 00:42:26,282 INFO L87 Difference]: Start difference. First operand 22 states and 24 transitions. Second operand 14 states. [2020-11-30 00:42:27,532 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 21 [2020-11-30 00:42:27,872 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 24 [2020-11-30 00:42:29,242 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 24 [2020-11-30 00:42:29,623 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 27 [2020-11-30 00:42:30,033 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 28 [2020-11-30 00:42:30,433 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 32 [2020-11-30 00:42:30,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:42:30,547 INFO L93 Difference]: Finished difference Result 40 states and 45 transitions. [2020-11-30 00:42:30,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-11-30 00:42:30,552 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 21 [2020-11-30 00:42:30,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:42:30,552 INFO L225 Difference]: With dead ends: 40 [2020-11-30 00:42:30,553 INFO L226 Difference]: Without dead ends: 29 [2020-11-30 00:42:30,554 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 7.3s TimeCoverageRelationStatistics Valid=157, Invalid=443, Unknown=0, NotChecked=0, Total=600 [2020-11-30 00:42:30,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-11-30 00:42:30,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 27. [2020-11-30 00:42:30,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-11-30 00:42:30,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 29 transitions. [2020-11-30 00:42:30,561 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 29 transitions. Word has length 21 [2020-11-30 00:42:30,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:42:30,561 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 29 transitions. [2020-11-30 00:42:30,561 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-11-30 00:42:30,561 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions. [2020-11-30 00:42:30,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-30 00:42:30,562 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:42:30,563 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:42:30,763 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:42:30,763 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:42:30,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:42:30,764 INFO L82 PathProgramCache]: Analyzing trace with hash 1357193723, now seen corresponding path program 1 times [2020-11-30 00:42:30,764 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:42:30,764 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867587984] [2020-11-30 00:42:30,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:42:30,784 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-30 00:42:30,784 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [79380047] [2020-11-30 00:42:30,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ac98ae27-af4c-4743-ab50-69432312eedd/bin/uautomizer/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:42:30,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:42:30,860 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 40 conjunts are in the unsatisfiable core [2020-11-30 00:42:30,864 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:42:30,939 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 1] term [2020-11-30 00:42:30,939 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:42:30,978 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 1] term [2020-11-30 00:42:30,978 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:42:31,465 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 18 [2020-11-30 00:42:31,819 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 21 [2020-11-30 00:42:32,266 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2020-11-30 00:42:32,269 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-11-30 00:42:32,270 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:42:32,851 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2020-11-30 00:42:33,361 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2020-11-30 00:42:34,272 WARN L193 SmtUtils]: Spent 681.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 29 [2020-11-30 00:42:34,997 WARN L193 SmtUtils]: Spent 434.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 32 [2020-11-30 00:42:35,038 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:42:35,048 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-30 00:42:35,072 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-30 00:42:35,083 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-30 00:42:35,247 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 34 [2020-11-30 00:42:35,341 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:42:35,342 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867587984] [2020-11-30 00:42:35,342 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 00:42:35,342 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [79380047] [2020-11-30 00:42:35,342 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-30 00:42:35,343 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-11-30 00:42:35,343 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249993768] [2020-11-30 00:42:35,344 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-11-30 00:42:35,344 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:42:35,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-11-30 00:42:35,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2020-11-30 00:42:35,345 INFO L87 Difference]: Start difference. First operand 27 states and 29 transitions. Second operand 16 states. [2020-11-30 00:42:36,595 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 28 [2020-11-30 00:42:37,336 WARN L193 SmtUtils]: Spent 462.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 30 [2020-11-30 00:42:38,248 WARN L193 SmtUtils]: Spent 720.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 31 [2020-11-30 00:42:38,772 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 34 [2020-11-30 00:42:39,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:42:39,155 INFO L93 Difference]: Finished difference Result 41 states and 46 transitions. [2020-11-30 00:42:39,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-11-30 00:42:39,166 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 21 [2020-11-30 00:42:39,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:42:39,167 INFO L225 Difference]: With dead ends: 41 [2020-11-30 00:42:39,167 INFO L226 Difference]: Without dead ends: 34 [2020-11-30 00:42:39,169 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=113, Invalid=393, Unknown=0, NotChecked=0, Total=506 [2020-11-30 00:42:39,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-11-30 00:42:39,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 32. [2020-11-30 00:42:39,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-11-30 00:42:39,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 34 transitions. [2020-11-30 00:42:39,200 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 34 transitions. Word has length 21 [2020-11-30 00:42:39,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:42:39,202 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 34 transitions. [2020-11-30 00:42:39,202 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-11-30 00:42:39,202 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 34 transitions. [2020-11-30 00:42:39,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-30 00:42:39,203 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:42:39,204 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:42:39,423 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:42:39,423 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:42:39,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:42:39,424 INFO L82 PathProgramCache]: Analyzing trace with hash 962319671, now seen corresponding path program 2 times [2020-11-30 00:42:39,424 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:42:39,425 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879938838] [2020-11-30 00:42:39,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:42:39,439 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-30 00:42:39,439 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [870474183] [2020-11-30 00:42:39,439 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ac98ae27-af4c-4743-ab50-69432312eedd/bin/uautomizer/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:42:39,509 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-30 00:42:39,509 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-30 00:42:39,510 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 36 conjunts are in the unsatisfiable core [2020-11-30 00:42:39,512 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:42:39,531 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 1] term [2020-11-30 00:42:39,531 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:42:39,581 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-11-30 00:42:39,581 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:42:39,935 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 18 [2020-11-30 00:42:40,203 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 20 [2020-11-30 00:42:40,752 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 22 [2020-11-30 00:42:41,071 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 25 [2020-11-30 00:42:41,108 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:42:41,116 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-30 00:42:41,161 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-30 00:42:41,181 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-30 00:42:41,452 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 32 [2020-11-30 00:42:41,567 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:42:41,568 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879938838] [2020-11-30 00:42:41,568 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 00:42:41,568 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [870474183] [2020-11-30 00:42:41,569 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-30 00:42:41,569 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-11-30 00:42:41,569 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750810935] [2020-11-30 00:42:41,570 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-11-30 00:42:41,570 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:42:41,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-11-30 00:42:41,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2020-11-30 00:42:41,573 INFO L87 Difference]: Start difference. First operand 32 states and 34 transitions. Second operand 12 states. [2020-11-30 00:42:42,741 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 22 [2020-11-30 00:42:42,992 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 24 [2020-11-30 00:42:44,816 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 26 [2020-11-30 00:42:45,095 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 29 [2020-11-30 00:42:45,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:42:45,253 INFO L93 Difference]: Finished difference Result 47 states and 52 transitions. [2020-11-30 00:42:45,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-30 00:42:45,264 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 21 [2020-11-30 00:42:45,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:42:45,265 INFO L225 Difference]: With dead ends: 47 [2020-11-30 00:42:45,265 INFO L226 Difference]: Without dead ends: 36 [2020-11-30 00:42:45,266 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=122, Invalid=298, Unknown=0, NotChecked=0, Total=420 [2020-11-30 00:42:45,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-11-30 00:42:45,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 34. [2020-11-30 00:42:45,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-11-30 00:42:45,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 36 transitions. [2020-11-30 00:42:45,274 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 36 transitions. Word has length 21 [2020-11-30 00:42:45,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:42:45,275 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 36 transitions. [2020-11-30 00:42:45,275 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-11-30 00:42:45,275 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 36 transitions. [2020-11-30 00:42:45,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-30 00:42:45,276 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:42:45,277 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:42:45,479 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2020-11-30 00:42:45,479 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:42:45,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:42:45,483 INFO L82 PathProgramCache]: Analyzing trace with hash 964166713, now seen corresponding path program 2 times [2020-11-30 00:42:45,483 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:42:45,483 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601019681] [2020-11-30 00:42:45,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:42:45,518 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-30 00:42:45,518 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1536714394] [2020-11-30 00:42:45,519 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ac98ae27-af4c-4743-ab50-69432312eedd/bin/uautomizer/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:42:45,579 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-30 00:42:45,579 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-30 00:42:45,581 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 31 conjunts are in the unsatisfiable core [2020-11-30 00:42:45,583 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:42:45,621 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 1] term [2020-11-30 00:42:45,621 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:42:45,668 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-11-30 00:42:45,669 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:42:45,965 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 18 [2020-11-30 00:42:46,200 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 20 [2020-11-30 00:42:46,531 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 23 [2020-11-30 00:42:46,813 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 25 [2020-11-30 00:42:46,838 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:42:46,844 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-30 00:42:46,856 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-30 00:42:46,868 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-30 00:42:46,879 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-30 00:42:46,893 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-30 00:42:46,904 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-30 00:42:46,916 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-30 00:42:46,927 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-30 00:42:47,119 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 29 [2020-11-30 00:42:47,262 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:42:47,263 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601019681] [2020-11-30 00:42:47,263 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 00:42:47,263 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1536714394] [2020-11-30 00:42:47,263 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-30 00:42:47,263 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-11-30 00:42:47,263 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665628308] [2020-11-30 00:42:47,265 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-11-30 00:42:47,265 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:42:47,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-11-30 00:42:47,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2020-11-30 00:42:47,266 INFO L87 Difference]: Start difference. First operand 34 states and 36 transitions. Second operand 12 states. [2020-11-30 00:42:48,388 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 22 [2020-11-30 00:42:48,668 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 24 [2020-11-30 00:42:49,795 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 27 [2020-11-30 00:42:50,075 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 29 [2020-11-30 00:42:50,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:42:50,176 INFO L93 Difference]: Finished difference Result 48 states and 53 transitions. [2020-11-30 00:42:50,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-30 00:42:50,182 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 21 [2020-11-30 00:42:50,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:42:50,183 INFO L225 Difference]: With dead ends: 48 [2020-11-30 00:42:50,183 INFO L226 Difference]: Without dead ends: 41 [2020-11-30 00:42:50,184 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=125, Invalid=295, Unknown=0, NotChecked=0, Total=420 [2020-11-30 00:42:50,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-11-30 00:42:50,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 29. [2020-11-30 00:42:50,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-11-30 00:42:50,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 31 transitions. [2020-11-30 00:42:50,189 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 31 transitions. Word has length 21 [2020-11-30 00:42:50,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:42:50,190 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 31 transitions. [2020-11-30 00:42:50,190 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-11-30 00:42:50,190 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2020-11-30 00:42:50,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-11-30 00:42:50,191 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:42:50,191 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:42:50,407 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:42:50,407 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:42:50,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:42:50,408 INFO L82 PathProgramCache]: Analyzing trace with hash -980762402, now seen corresponding path program 3 times [2020-11-30 00:42:50,408 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:42:50,408 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789442446] [2020-11-30 00:42:50,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:42:50,423 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-30 00:42:50,424 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [97965784] [2020-11-30 00:42:50,424 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ac98ae27-af4c-4743-ab50-69432312eedd/bin/uautomizer/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:42:50,527 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2020-11-30 00:42:50,527 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-30 00:42:50,528 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 24 conjunts are in the unsatisfiable core [2020-11-30 00:42:50,531 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:42:50,655 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:42:50,660 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:42:50,663 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-30 00:42:50,721 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-30 00:42:50,756 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:42:50,762 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-30 00:42:51,131 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 5 [2020-11-30 00:42:51,601 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2020-11-30 00:42:51,604 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-11-30 00:42:51,605 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:42:53,605 WARN L193 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 22 DAG size of output: 20 [2020-11-30 00:42:53,621 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-30 00:42:53,625 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-30 00:43:03,918 WARN L193 SmtUtils]: Spent 5.32 s on a formula simplification. DAG size of input: 106 DAG size of output: 49 [2020-11-30 00:43:03,942 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:43:03,984 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-11-30 00:44:11,671 WARN L193 SmtUtils]: Spent 1.13 m on a formula simplification. DAG size of input: 47 DAG size of output: 46 [2020-11-30 00:44:53,724 WARN L193 SmtUtils]: Spent 42.04 s on a formula simplification. DAG size of input: 35 DAG size of output: 32 [2020-11-30 00:45:00,043 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse6 (<= 1 c_ULTIMATE.start___VERIFIER_assert_~cond))) (or (and (exists ((aux_div_v_ULTIMATE.start_main_~y~0_30_43 Int) (ULTIMATE.start_main_~a~0 Int) (ULTIMATE.start_main_~b~0 Int) (ULTIMATE.start_main_~z~0 Int) (ULTIMATE.start_main_~y~0 Int) (aux_div_aux_div_ULTIMATE.start_main_~x~0_36_65 Int)) (let ((.cse4 (* ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~b~0))) (let ((.cse0 (div (+ (* 4 ULTIMATE.start_main_~y~0 aux_div_aux_div_ULTIMATE.start_main_~x~0_36_65) .cse4 (* (- 1) ULTIMATE.start_main_~z~0)) (* aux_div_aux_div_ULTIMATE.start_main_~x~0_36_65 (- 2)))) (.cse1 (* 2 ULTIMATE.start_main_~y~0))) (let ((.cse3 (* 2 aux_div_v_ULTIMATE.start_main_~y~0_30_43)) (.cse2 (+ .cse0 .cse1))) (and (not (= 0 (* 2 aux_div_aux_div_ULTIMATE.start_main_~x~0_36_65))) (<= 0 (+ .cse0 .cse1 1)) (< .cse2 (+ .cse3 1)) (< .cse0 2) (not (= (+ (* 4 (* ULTIMATE.start_main_~y~0 aux_div_aux_div_ULTIMATE.start_main_~x~0_36_65)) .cse4) ULTIMATE.start_main_~z~0)) (= (let ((.cse5 (div (* aux_div_aux_div_ULTIMATE.start_main_~x~0_36_65 4) (- 2)))) (mod (+ (* (- 2) .cse5 ULTIMATE.start_main_~y~0) (* ULTIMATE.start_main_~z~0 (- 1)) .cse4) .cse5)) 0) (<= 0 .cse0) (<= .cse3 .cse2)))))) (<= 0 c_ULTIMATE.start___VERIFIER_assert_~cond)) .cse6 (and (exists ((aux_div_v_ULTIMATE.start_main_~y~0_30_43 Int) (ULTIMATE.start_main_~y~0 Int) (aux_div_aux_div_ULTIMATE.start_main_~x~0_36_65 Int)) (let ((.cse10 (div 0 (* aux_div_aux_div_ULTIMATE.start_main_~x~0_36_65 (- 2)))) (.cse11 (* 2 ULTIMATE.start_main_~y~0))) (let ((.cse8 (+ .cse10 .cse11 1)) (.cse9 (* 2 aux_div_v_ULTIMATE.start_main_~y~0_30_43))) (and (= (let ((.cse7 (div (* aux_div_aux_div_ULTIMATE.start_main_~x~0_36_65 4) (- 2)))) (mod (+ (* (- 2) .cse7 ULTIMATE.start_main_~y~0) (* (* 4 ULTIMATE.start_main_~y~0 aux_div_aux_div_ULTIMATE.start_main_~x~0_36_65) (- 1))) .cse7)) 0) (not (= 0 (* 2 aux_div_aux_div_ULTIMATE.start_main_~x~0_36_65))) (<= 0 .cse8) (<= .cse9 .cse8) (< (+ .cse10 .cse11) (+ .cse9 1)))))) .cse6))) is different from false [2020-11-30 00:45:02,271 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-11-30 00:45:12,767 WARN L838 $PredicateComparison]: unable to prove that (exists ((aux_div_v_ULTIMATE.start_main_~y~0_30_43 Int) (ULTIMATE.start_main_~a~0 Int) (ULTIMATE.start_main_~b~0 Int) (ULTIMATE.start_main_~z~0 Int) (ULTIMATE.start_main_~y~0 Int) (aux_div_aux_div_ULTIMATE.start_main_~x~0_36_65 Int)) (let ((.cse4 (* ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~b~0))) (let ((.cse0 (div (+ (* 4 ULTIMATE.start_main_~y~0 aux_div_aux_div_ULTIMATE.start_main_~x~0_36_65) .cse4 (* (- 1) ULTIMATE.start_main_~z~0)) (* aux_div_aux_div_ULTIMATE.start_main_~x~0_36_65 (- 2)))) (.cse1 (* 2 ULTIMATE.start_main_~y~0))) (let ((.cse3 (* 2 aux_div_v_ULTIMATE.start_main_~y~0_30_43)) (.cse2 (+ .cse0 .cse1))) (and (not (= 0 (* 2 aux_div_aux_div_ULTIMATE.start_main_~x~0_36_65))) (<= 0 (+ .cse0 .cse1 1)) (< .cse2 (+ .cse3 1)) (< .cse0 2) (not (= (+ (* 4 (* ULTIMATE.start_main_~y~0 aux_div_aux_div_ULTIMATE.start_main_~x~0_36_65)) .cse4) ULTIMATE.start_main_~z~0)) (= (let ((.cse5 (div (* aux_div_aux_div_ULTIMATE.start_main_~x~0_36_65 4) (- 2)))) (mod (+ (* (- 2) .cse5 ULTIMATE.start_main_~y~0) (* ULTIMATE.start_main_~z~0 (- 1)) .cse4) .cse5)) 0) (<= 0 .cse0) (<= .cse3 .cse2)))))) is different from false [2020-11-30 00:45:14,796 WARN L860 $PredicateComparison]: unable to prove that (exists ((aux_div_v_ULTIMATE.start_main_~y~0_30_43 Int) (ULTIMATE.start_main_~a~0 Int) (ULTIMATE.start_main_~b~0 Int) (ULTIMATE.start_main_~z~0 Int) (ULTIMATE.start_main_~y~0 Int) (aux_div_aux_div_ULTIMATE.start_main_~x~0_36_65 Int)) (let ((.cse4 (* ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~b~0))) (let ((.cse0 (div (+ (* 4 ULTIMATE.start_main_~y~0 aux_div_aux_div_ULTIMATE.start_main_~x~0_36_65) .cse4 (* (- 1) ULTIMATE.start_main_~z~0)) (* aux_div_aux_div_ULTIMATE.start_main_~x~0_36_65 (- 2)))) (.cse1 (* 2 ULTIMATE.start_main_~y~0))) (let ((.cse3 (* 2 aux_div_v_ULTIMATE.start_main_~y~0_30_43)) (.cse2 (+ .cse0 .cse1))) (and (not (= 0 (* 2 aux_div_aux_div_ULTIMATE.start_main_~x~0_36_65))) (<= 0 (+ .cse0 .cse1 1)) (< .cse2 (+ .cse3 1)) (< .cse0 2) (not (= (+ (* 4 (* ULTIMATE.start_main_~y~0 aux_div_aux_div_ULTIMATE.start_main_~x~0_36_65)) .cse4) ULTIMATE.start_main_~z~0)) (= (let ((.cse5 (div (* aux_div_aux_div_ULTIMATE.start_main_~x~0_36_65 4) (- 2)))) (mod (+ (* (- 2) .cse5 ULTIMATE.start_main_~y~0) (* ULTIMATE.start_main_~z~0 (- 1)) .cse4) .cse5)) 0) (<= 0 .cse0) (<= .cse3 .cse2)))))) is different from true [2020-11-30 00:45:14,800 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 1 not checked. [2020-11-30 00:45:14,801 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789442446] [2020-11-30 00:45:14,801 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 00:45:14,801 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [97965784] [2020-11-30 00:45:14,801 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-30 00:45:14,801 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-11-30 00:45:14,802 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137257847] [2020-11-30 00:45:14,802 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-30 00:45:14,802 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:45:14,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-30 00:45:14,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=36, Unknown=5, NotChecked=26, Total=90 [2020-11-30 00:45:14,804 INFO L87 Difference]: Start difference. First operand 29 states and 31 transitions. Second operand 10 states. [2020-11-30 00:45:20,337 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 17 [2020-11-30 00:45:25,747 WARN L193 SmtUtils]: Spent 2.25 s on a formula simplification. DAG size of input: 28 DAG size of output: 23 [2020-11-30 00:45:46,932 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse1 (* c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~b~0)) (.cse2 (div (* c_ULTIMATE.start_main_~x~0 (- 1)) (- 2)))) (and (= (mod c_ULTIMATE.start_main_~x~0 (- 2)) 0) (let ((.cse0 (= .cse2 0))) (or (and .cse0 (= .cse1 (+ (* 2 (* .cse2 c_ULTIMATE.start_main_~y~0)) c_ULTIMATE.start_main_~z~0))) (let ((.cse8 (* (- 2) .cse2 c_ULTIMATE.start_main_~y~0))) (let ((.cse9 (div (+ .cse1 .cse8 (* (- 1) c_ULTIMATE.start_main_~z~0)) .cse2))) (and (exists ((aux_div_v_ULTIMATE.start_main_~y~0_30_43 Int)) (let ((.cse5 (let ((.cse7 (div (* c_ULTIMATE.start_main_~x~0 (- 1)) (- 2)))) (div (+ (* c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~b~0) (* (- 2) .cse7 c_ULTIMATE.start_main_~y~0) (* (- 1) c_ULTIMATE.start_main_~z~0)) .cse7))) (.cse6 (* 2 c_ULTIMATE.start_main_~y~0))) (let ((.cse4 (+ .cse5 .cse6)) (.cse3 (* 2 aux_div_v_ULTIMATE.start_main_~y~0_30_43))) (and (<= .cse3 .cse4) (< .cse4 (+ .cse3 1)) (<= .cse3 (+ .cse5 .cse6 1)))))) (= (mod (+ (* c_ULTIMATE.start_main_~z~0 (- 1)) .cse8 .cse1) .cse2) 0) (< .cse9 2) (not .cse0) (<= 0 (+ .cse9 (* 2 c_ULTIMATE.start_main_~y~0) 1)) (<= 0 .cse9)))))) (let ((.cse10 (= (+ c_ULTIMATE.start_main_~z~0 (* c_ULTIMATE.start_main_~x~0 c_ULTIMATE.start_main_~y~0)) .cse1))) (or (and (= 1 c_ULTIMATE.start___VERIFIER_assert_~cond) .cse10) (and (= 0 c_ULTIMATE.start___VERIFIER_assert_~cond) (not .cse10)))) (let ((.cse17 (<= 1 c_ULTIMATE.start___VERIFIER_assert_~cond))) (or (and (exists ((aux_div_v_ULTIMATE.start_main_~y~0_30_43 Int) (ULTIMATE.start_main_~a~0 Int) (ULTIMATE.start_main_~b~0 Int) (ULTIMATE.start_main_~z~0 Int) (ULTIMATE.start_main_~y~0 Int) (aux_div_aux_div_ULTIMATE.start_main_~x~0_36_65 Int)) (let ((.cse15 (* ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~b~0))) (let ((.cse11 (div (+ (* 4 ULTIMATE.start_main_~y~0 aux_div_aux_div_ULTIMATE.start_main_~x~0_36_65) .cse15 (* (- 1) ULTIMATE.start_main_~z~0)) (* aux_div_aux_div_ULTIMATE.start_main_~x~0_36_65 (- 2)))) (.cse12 (* 2 ULTIMATE.start_main_~y~0))) (let ((.cse14 (* 2 aux_div_v_ULTIMATE.start_main_~y~0_30_43)) (.cse13 (+ .cse11 .cse12))) (and (not (= 0 (* 2 aux_div_aux_div_ULTIMATE.start_main_~x~0_36_65))) (<= 0 (+ .cse11 .cse12 1)) (< .cse13 (+ .cse14 1)) (< .cse11 2) (not (= (+ (* 4 (* ULTIMATE.start_main_~y~0 aux_div_aux_div_ULTIMATE.start_main_~x~0_36_65)) .cse15) ULTIMATE.start_main_~z~0)) (= (let ((.cse16 (div (* aux_div_aux_div_ULTIMATE.start_main_~x~0_36_65 4) (- 2)))) (mod (+ (* (- 2) .cse16 ULTIMATE.start_main_~y~0) (* ULTIMATE.start_main_~z~0 (- 1)) .cse15) .cse16)) 0) (<= 0 .cse11) (<= .cse14 .cse13)))))) (<= 0 c_ULTIMATE.start___VERIFIER_assert_~cond)) .cse17 (and (exists ((aux_div_v_ULTIMATE.start_main_~y~0_30_43 Int) (ULTIMATE.start_main_~y~0 Int) (aux_div_aux_div_ULTIMATE.start_main_~x~0_36_65 Int)) (let ((.cse21 (div 0 (* aux_div_aux_div_ULTIMATE.start_main_~x~0_36_65 (- 2)))) (.cse22 (* 2 ULTIMATE.start_main_~y~0))) (let ((.cse19 (+ .cse21 .cse22 1)) (.cse20 (* 2 aux_div_v_ULTIMATE.start_main_~y~0_30_43))) (and (= (let ((.cse18 (div (* aux_div_aux_div_ULTIMATE.start_main_~x~0_36_65 4) (- 2)))) (mod (+ (* (- 2) .cse18 ULTIMATE.start_main_~y~0) (* (* 4 ULTIMATE.start_main_~y~0 aux_div_aux_div_ULTIMATE.start_main_~x~0_36_65) (- 1))) .cse18)) 0) (not (= 0 (* 2 aux_div_aux_div_ULTIMATE.start_main_~x~0_36_65))) (<= 0 .cse19) (<= .cse20 .cse19) (< (+ .cse21 .cse22) (+ .cse20 1)))))) .cse17))) (= (mod .cse2 (- 2)) 0))) is different from false [2020-11-30 00:45:53,430 WARN L193 SmtUtils]: Spent 1.91 s on a formula simplification that was a NOOP. DAG size: 21 [2020-11-30 00:45:57,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:45:57,984 INFO L93 Difference]: Finished difference Result 37 states and 40 transitions. [2020-11-30 00:45:58,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-30 00:45:58,008 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 26 [2020-11-30 00:45:58,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:45:58,009 INFO L225 Difference]: With dead ends: 37 [2020-11-30 00:45:58,009 INFO L226 Difference]: Without dead ends: 35 [2020-11-30 00:45:58,010 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 30.6s TimeCoverageRelationStatistics Valid=44, Invalid=71, Unknown=7, NotChecked=60, Total=182 [2020-11-30 00:45:58,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-11-30 00:45:58,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 32. [2020-11-30 00:45:58,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-11-30 00:45:58,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 34 transitions. [2020-11-30 00:45:58,020 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 34 transitions. Word has length 26 [2020-11-30 00:45:58,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:45:58,021 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 34 transitions. [2020-11-30 00:45:58,021 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-30 00:45:58,021 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 34 transitions. [2020-11-30 00:45:58,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-11-30 00:45:58,023 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:45:58,028 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:45:58,235 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:45:58,236 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:45:58,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:45:58,236 INFO L82 PathProgramCache]: Analyzing trace with hash -1859115299, now seen corresponding path program 4 times [2020-11-30 00:45:58,236 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:45:58,236 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881111495] [2020-11-30 00:45:58,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:45:58,269 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-30 00:45:58,274 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2016526838] [2020-11-30 00:45:58,274 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ac98ae27-af4c-4743-ab50-69432312eedd/bin/uautomizer/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:45:58,377 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-11-30 00:45:58,378 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-30 00:45:58,379 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 31 conjunts are in the unsatisfiable core [2020-11-30 00:45:58,382 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:45:58,983 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 14 [2020-11-30 00:45:58,990 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:45:58,993 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-30 00:46:04,377 WARN L193 SmtUtils]: Spent 3.35 s on a formula simplification. DAG size of input: 42 DAG size of output: 26 [2020-11-30 00:46:04,380 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-11-30 00:46:04,380 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:46:05,621 WARN L193 SmtUtils]: Spent 386.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2020-11-30 00:46:07,613 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 22 [2020-11-30 00:46:07,626 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-30 00:46:07,630 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-30 00:46:44,441 WARN L193 SmtUtils]: Spent 32.94 s on a formula simplification. DAG size of input: 118 DAG size of output: 53 [2020-11-30 00:46:44,470 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:46:45,292 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:46:45,293 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881111495] [2020-11-30 00:46:45,293 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 00:46:45,294 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2016526838] [2020-11-30 00:46:45,294 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-30 00:46:45,294 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-11-30 00:46:45,294 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317887153] [2020-11-30 00:46:45,295 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-11-30 00:46:45,295 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:46:45,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-11-30 00:46:45,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=149, Unknown=1, NotChecked=0, Total=182 [2020-11-30 00:46:45,297 INFO L87 Difference]: Start difference. First operand 32 states and 34 transitions. Second operand 14 states. [2020-11-30 00:47:23,584 WARN L193 SmtUtils]: Spent 620.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 24 [2020-11-30 00:47:26,673 WARN L838 $PredicateComparison]: unable to prove that (and (= c_ULTIMATE.start_main_~x~0 (* 16 c_ULTIMATE.start_main_~a~0)) (<= 1 c_ULTIMATE.start___VERIFIER_assert_~cond) (let ((.cse7 (* c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~b~0)) (.cse6 (* (- 16) c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~y~0))) (let ((.cse0 (= (mod (+ (* c_ULTIMATE.start_main_~z~0 7) .cse7 .cse6) 8) 0)) (.cse2 (= c_ULTIMATE.start_main_~a~0 0)) (.cse1 (div (+ .cse7 .cse6 (* (- 1) c_ULTIMATE.start_main_~z~0)) 8))) (or (and .cse0 (= .cse1 0) .cse2) (let ((.cse3 (div .cse1 c_ULTIMATE.start_main_~a~0))) (and (<= 0 .cse3) .cse0 (exists ((aux_div_v_ULTIMATE.start_main_~y~0_33_37 Int)) (let ((.cse4 (+ (div (div (+ (* c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~b~0) (* (- 16) c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~y~0) (* (- 1) c_ULTIMATE.start_main_~z~0)) 8) c_ULTIMATE.start_main_~a~0) (* 2 c_ULTIMATE.start_main_~y~0))) (.cse5 (* 2 aux_div_v_ULTIMATE.start_main_~y~0_33_37))) (and (< .cse4 (+ .cse5 2)) (<= .cse5 .cse4) (not (= .cse4 (+ .cse5 1)))))) (not .cse2) (< 0 (+ (* 2 .cse3) (* 4 c_ULTIMATE.start_main_~y~0) 2)) (= (mod (div (+ (* c_ULTIMATE.start_main_~z~0 (- 1)) .cse6 .cse7) 8) c_ULTIMATE.start_main_~a~0) 0) (< .cse3 2))))))) is different from false [2020-11-30 00:47:28,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:47:28,356 INFO L93 Difference]: Finished difference Result 50 states and 54 transitions. [2020-11-30 00:47:28,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-11-30 00:47:28,357 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 31 [2020-11-30 00:47:28,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:47:28,359 INFO L225 Difference]: With dead ends: 50 [2020-11-30 00:47:28,359 INFO L226 Difference]: Without dead ends: 48 [2020-11-30 00:47:28,360 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 55.2s TimeCoverageRelationStatistics Valid=54, Invalid=218, Unknown=4, NotChecked=30, Total=306 [2020-11-30 00:47:28,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-11-30 00:47:28,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 37. [2020-11-30 00:47:28,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-11-30 00:47:28,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 40 transitions. [2020-11-30 00:47:28,375 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 40 transitions. Word has length 31 [2020-11-30 00:47:28,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:47:28,375 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 40 transitions. [2020-11-30 00:47:28,376 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-11-30 00:47:28,376 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 40 transitions. [2020-11-30 00:47:28,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-11-30 00:47:28,377 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:47:28,378 INFO L422 BasicCegarLoop]: trace histogram [6, 5, 5, 5, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:47:28,587 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2020-11-30 00:47:28,587 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:47:28,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:47:28,588 INFO L82 PathProgramCache]: Analyzing trace with hash 1756546560, now seen corresponding path program 5 times [2020-11-30 00:47:28,588 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:47:28,588 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884559664] [2020-11-30 00:47:28,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:47:28,603 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-30 00:47:28,603 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1255951682] [2020-11-30 00:47:28,603 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ac98ae27-af4c-4743-ab50-69432312eedd/bin/uautomizer/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:47:28,663 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2020-11-30 00:47:28,663 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-30 00:47:28,665 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 25 conjunts are in the unsatisfiable core [2020-11-30 00:47:28,668 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:47:28,697 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 1] term [2020-11-30 00:47:28,698 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:47:29,072 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 11 [2020-11-30 00:47:29,082 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-30 00:47:29,084 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-30 00:47:29,273 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-30 00:47:29,278 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-30 00:47:29,297 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-30 00:47:31,324 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 31 DAG size of output: 26 [2020-11-30 00:47:31,341 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-30 00:47:31,382 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-11-30 00:47:31,433 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-11-30 00:47:32,873 WARN L193 SmtUtils]: Spent 996.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 12 [2020-11-30 00:47:33,122 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 48 proven. 9 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-30 00:47:33,123 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884559664] [2020-11-30 00:47:33,123 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 00:47:33,123 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1255951682] [2020-11-30 00:47:33,124 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-30 00:47:33,124 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-11-30 00:47:33,124 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287891507] [2020-11-30 00:47:33,125 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-11-30 00:47:33,125 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:47:33,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-11-30 00:47:33,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2020-11-30 00:47:33,127 INFO L87 Difference]: Start difference. First operand 37 states and 40 transitions. Second operand 13 states. [2020-11-30 00:47:33,683 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2020-11-30 00:47:34,325 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 16 [2020-11-30 00:47:35,065 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2020-11-30 00:47:35,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:47:35,207 INFO L93 Difference]: Finished difference Result 61 states and 66 transitions. [2020-11-30 00:47:35,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-30 00:47:35,213 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 36 [2020-11-30 00:47:35,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:47:35,214 INFO L225 Difference]: With dead ends: 61 [2020-11-30 00:47:35,214 INFO L226 Difference]: Without dead ends: 0 [2020-11-30 00:47:35,215 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=107, Invalid=313, Unknown=0, NotChecked=0, Total=420 [2020-11-30 00:47:35,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-30 00:47:35,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-30 00:47:35,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-30 00:47:35,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-30 00:47:35,216 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 36 [2020-11-30 00:47:35,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:47:35,216 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 00:47:35,216 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-11-30 00:47:35,216 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-30 00:47:35,216 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 00:47:35,431 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2020-11-30 00:47:35,434 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-30 00:47:35,631 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 227 DAG size of output: 219 [2020-11-30 00:49:16,520 WARN L193 SmtUtils]: Spent 1.68 m on a formula simplification. DAG size of input: 222 DAG size of output: 135 [2020-11-30 00:50:22,241 WARN L193 SmtUtils]: Spent 1.10 m on a formula simplification. DAG size of input: 137 DAG size of output: 77 [2020-11-30 00:50:22,244 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2020-11-30 00:50:22,244 INFO L277 CegarLoopResult]: At program point L48(lines 20 49) the Hoare annotation is: true [2020-11-30 00:50:22,245 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-30 00:50:22,245 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-30 00:50:22,245 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-30 00:50:22,245 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2020-11-30 00:50:22,245 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-30 00:50:22,245 INFO L274 CegarLoopResult]: For program point L13(lines 13 16) no Hoare annotation was computed. [2020-11-30 00:50:22,245 INFO L270 CegarLoopResult]: At program point L13-1(lines 36 37) the Hoare annotation is: (let ((.cse3 (* ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~b~0)) (.cse11 (* 2 ULTIMATE.start_main_~y~0))) (let ((.cse10 (<= 0 (+ .cse11 1))) (.cse4 (* ULTIMATE.start_main_~a~0 2)) (.cse0 (<= ULTIMATE.start_main_~b~0 5)) (.cse1 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse7 (<= 0 ULTIMATE.start_main_~a~0)) (.cse8 (<= ULTIMATE.start_main_~a~0 5)) (.cse9 (= (+ ULTIMATE.start_main_~z~0 (* ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~y~0)) .cse3)) (.cse5 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse6 (<= 1 ULTIMATE.start_main_~b~0))) (or (let ((.cse2 (div (+ ULTIMATE.start_main_~b~0 (- 1)) 2))) (and .cse0 .cse1 (= ULTIMATE.start_main_~y~0 (div (+ .cse2 (- 1)) 2)) (= ULTIMATE.start_main_~z~0 .cse3) (= (* ULTIMATE.start_main_~z~0 2) (+ .cse4 ULTIMATE.start_main_~x~0)) .cse5 (= ULTIMATE.start_main_~z~0 (* ULTIMATE.start_main_~a~0 3)) .cse6 (<= 1 (mod .cse2 2)))) (and .cse0 .cse1 (= (* ULTIMATE.start_main_~a~0 8) ULTIMATE.start_main_~x~0) .cse7 .cse8 .cse9 .cse10 .cse5 (<= .cse11 4) .cse6) (and (= (mod ULTIMATE.start_main_~x~0 (- 2)) 0) .cse0 .cse1 .cse7 .cse8 .cse9 .cse10 .cse5 .cse6 (exists ((aux_mod_v_ULTIMATE.start_main_~y~0_36_37 Int) (aux_div_v_ULTIMATE.start_main_~y~0_36_37 Int)) (let ((.cse12 (* 2 aux_mod_v_ULTIMATE.start_main_~y~0_36_37)) (.cse13 (* 4 aux_div_v_ULTIMATE.start_main_~y~0_36_37))) (and (< aux_mod_v_ULTIMATE.start_main_~y~0_36_37 2) (<= 0 aux_mod_v_ULTIMATE.start_main_~y~0_36_37) (<= (+ .cse12 .cse13) 4) (<= 0 (+ aux_mod_v_ULTIMATE.start_main_~y~0_36_37 (* 2 aux_div_v_ULTIMATE.start_main_~y~0_36_37))) (<= 0 (+ .cse12 .cse13 1)) (<= ULTIMATE.start_main_~y~0 aux_div_v_ULTIMATE.start_main_~y~0_36_37))))) (and (= ULTIMATE.start_main_~x~0 .cse4) .cse0 .cse1 .cse7 .cse8 .cse9 .cse5 (= (div ULTIMATE.start_main_~b~0 2) ULTIMATE.start_main_~y~0) .cse6) (and (<= ULTIMATE.start_main_~y~0 5) .cse1 .cse7 .cse8 .cse9 .cse5 (= ULTIMATE.start_main_~z~0 0) (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0) .cse6)))) [2020-11-30 00:50:22,246 INFO L274 CegarLoopResult]: For program point L13-2(lines 13 16) no Hoare annotation was computed. [2020-11-30 00:50:22,246 INFO L277 CegarLoopResult]: At program point L13-3(lines 12 18) the Hoare annotation is: true [2020-11-30 00:50:22,246 INFO L274 CegarLoopResult]: For program point L9(lines 9 11) no Hoare annotation was computed. [2020-11-30 00:50:22,246 INFO L274 CegarLoopResult]: For program point L9-1(lines 9 11) no Hoare annotation was computed. [2020-11-30 00:50:22,246 INFO L274 CegarLoopResult]: For program point L9-2(lines 9 11) no Hoare annotation was computed. [2020-11-30 00:50:22,247 INFO L270 CegarLoopResult]: At program point L34-2(lines 34 45) the Hoare annotation is: (let ((.cse13 (* 2 ULTIMATE.start_main_~y~0)) (.cse2 (* ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~b~0)) (.cse15 (div (* ULTIMATE.start_main_~x~0 (- 1)) (- 2))) (.cse12 (mod ULTIMATE.start_main_~b~0 2))) (let ((.cse10 (* ULTIMATE.start_main_~z~0 2)) (.cse8 (div (+ ULTIMATE.start_main_~b~0 (- 1)) 2)) (.cse7 (<= 1 .cse12)) (.cse11 (* ULTIMATE.start_main_~a~0 2)) (.cse4 (= ULTIMATE.start_main_~z~0 0)) (.cse6 (<= ULTIMATE.start_main_~b~0 5)) (.cse9 (<= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse0 (<= 0 ULTIMATE.start_main_~a~0)) (.cse1 (<= ULTIMATE.start_main_~a~0 5)) (.cse3 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse14 (let ((.cse22 (= .cse15 0))) (or (and (= .cse2 (+ ULTIMATE.start_main_~z~0 (* (* .cse15 ULTIMATE.start_main_~y~0) 2))) .cse22) (let ((.cse28 (* (- 2) .cse15 ULTIMATE.start_main_~y~0))) (let ((.cse29 (div (+ .cse2 .cse28 (* (- 1) ULTIMATE.start_main_~z~0)) .cse15))) (and (exists ((aux_div_v_ULTIMATE.start_main_~y~0_30_43 Int)) (let ((.cse25 (let ((.cse27 (div (* ULTIMATE.start_main_~x~0 (- 1)) (- 2)))) (div (+ (* ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~b~0) (* (- 2) .cse27 ULTIMATE.start_main_~y~0) (* (- 1) ULTIMATE.start_main_~z~0)) .cse27))) (.cse26 (* 2 ULTIMATE.start_main_~y~0))) (let ((.cse24 (+ .cse25 .cse26)) (.cse23 (* 2 aux_div_v_ULTIMATE.start_main_~y~0_30_43))) (and (<= .cse23 .cse24) (< .cse24 (+ .cse23 1)) (<= .cse23 (+ .cse25 .cse26 1)))))) (= (mod (+ (* ULTIMATE.start_main_~z~0 (- 1)) .cse28 .cse2) .cse15) 0) (< .cse29 2) (not .cse22) (<= 0 (+ .cse29 .cse13 1)) (<= 0 .cse29))))))) (.cse5 (<= 1 ULTIMATE.start_main_~b~0))) (or (and (<= ULTIMATE.start_main_~y~0 5) .cse0 .cse1 (= (+ ULTIMATE.start_main_~z~0 (* ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~y~0)) .cse2) .cse3 .cse4 (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0) .cse5) (and .cse6 .cse7 (= ULTIMATE.start_main_~y~0 (div (+ .cse8 (- 1)) 2)) .cse9 (= .cse10 (+ .cse11 ULTIMATE.start_main_~x~0)) .cse3 (= ULTIMATE.start_main_~z~0 (* ULTIMATE.start_main_~a~0 3)) .cse5 (<= 1 (mod .cse8 2))) (and (or (and (= ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~z~0) (= ULTIMATE.start_main_~x~0 .cse10) (= ULTIMATE.start_main_~y~0 .cse8) .cse6 .cse7 .cse9) (and (= ULTIMATE.start_main_~x~0 .cse11) .cse6 .cse9 .cse4 (= (div ULTIMATE.start_main_~b~0 2) ULTIMATE.start_main_~y~0) (not (= .cse12 1)))) .cse0 .cse1 .cse3 .cse5) (and (= (mod ULTIMATE.start_main_~x~0 (- 2)) 0) .cse6 .cse9 .cse0 .cse1 .cse3 (<= 0 (+ .cse13 1)) .cse14 .cse5 (= (mod .cse15 (- 2)) 0) (exists ((aux_mod_v_ULTIMATE.start_main_~y~0_36_37 Int) (aux_div_v_ULTIMATE.start_main_~y~0_36_37 Int)) (let ((.cse16 (* 2 aux_mod_v_ULTIMATE.start_main_~y~0_36_37)) (.cse17 (* 4 aux_div_v_ULTIMATE.start_main_~y~0_36_37))) (and (< aux_mod_v_ULTIMATE.start_main_~y~0_36_37 2) (<= 0 aux_mod_v_ULTIMATE.start_main_~y~0_36_37) (<= (+ .cse16 .cse17) 4) (<= 0 (+ aux_mod_v_ULTIMATE.start_main_~y~0_36_37 (* 2 aux_div_v_ULTIMATE.start_main_~y~0_36_37))) (<= 0 (+ .cse16 .cse17 1)) (<= ULTIMATE.start_main_~y~0 aux_div_v_ULTIMATE.start_main_~y~0_36_37))))) (and (exists ((aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0_32_43_105 Int) (aux_div_v_ULTIMATE.start_main_~y~0_32_43 Int)) (let ((.cse21 (* 2 ULTIMATE.start_main_~y~0))) (let ((.cse19 (+ aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0_32_43_105 .cse21)) (.cse20 (* 2 aux_div_v_ULTIMATE.start_main_~y~0_32_43)) (.cse18 (+ aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0_32_43_105 .cse21 1))) (and (<= 0 .cse18) (< .cse19 (+ .cse20 1)) (<= 0 aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0_32_43_105) (<= .cse20 .cse19) (<= 0 .cse19) (<= .cse20 .cse18) (< aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0_32_43_105 2))))) .cse6 (= (* ULTIMATE.start_main_~a~0 8) ULTIMATE.start_main_~x~0) .cse9 .cse0 .cse1 .cse3 .cse14 (<= .cse13 4) .cse5)))) [2020-11-30 00:50:22,247 INFO L274 CegarLoopResult]: For program point L34-3(lines 34 45) no Hoare annotation was computed. [2020-11-30 00:50:22,247 INFO L274 CegarLoopResult]: For program point L14(lines 14 15) no Hoare annotation was computed. [2020-11-30 00:50:22,247 INFO L274 CegarLoopResult]: For program point L14-1(lines 14 15) no Hoare annotation was computed. [2020-11-30 00:50:22,247 INFO L274 CegarLoopResult]: For program point L10(line 10) no Hoare annotation was computed. [2020-11-30 00:50:22,247 INFO L274 CegarLoopResult]: For program point L10-2(line 10) no Hoare annotation was computed. [2020-11-30 00:50:22,247 INFO L274 CegarLoopResult]: For program point L39(lines 39 42) no Hoare annotation was computed. [2020-11-30 00:50:22,247 INFO L274 CegarLoopResult]: For program point L10-4(line 10) no Hoare annotation was computed. [2020-11-30 00:50:22,247 INFO L274 CegarLoopResult]: For program point L39-2(lines 39 42) no Hoare annotation was computed. [2020-11-30 00:50:22,261 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_30_43,QUANTIFIED] [2020-11-30 00:50:22,262 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_30_43,QUANTIFIED] [2020-11-30 00:50:22,262 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_30_43,QUANTIFIED] [2020-11-30 00:50:22,263 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] [2020-11-30 00:50:22,263 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] [2020-11-30 00:50:22,263 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] [2020-11-30 00:50:22,264 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] [2020-11-30 00:50:22,264 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] [2020-11-30 00:50:22,264 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] [2020-11-30 00:50:22,264 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] [2020-11-30 00:50:22,265 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] [2020-11-30 00:50:22,265 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] [2020-11-30 00:50:22,265 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0_32_43_105,QUANTIFIED] [2020-11-30 00:50:22,265 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0_32_43_105,QUANTIFIED] [2020-11-30 00:50:22,266 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_32_43,QUANTIFIED] [2020-11-30 00:50:22,266 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0_32_43_105,QUANTIFIED] [2020-11-30 00:50:22,266 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_32_43,QUANTIFIED] [2020-11-30 00:50:22,267 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0_32_43_105,QUANTIFIED] [2020-11-30 00:50:22,267 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0_32_43_105,QUANTIFIED] [2020-11-30 00:50:22,267 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_32_43,QUANTIFIED] [2020-11-30 00:50:22,268 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0_32_43_105,QUANTIFIED] [2020-11-30 00:50:22,268 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0_32_43_105,QUANTIFIED] [2020-11-30 00:50:22,268 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_30_43,QUANTIFIED] [2020-11-30 00:50:22,269 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_30_43,QUANTIFIED] [2020-11-30 00:50:22,269 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_30_43,QUANTIFIED] [2020-11-30 00:50:22,288 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_30_43,QUANTIFIED] [2020-11-30 00:50:22,288 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_30_43,QUANTIFIED] [2020-11-30 00:50:22,288 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_30_43,QUANTIFIED] [2020-11-30 00:50:22,289 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] [2020-11-30 00:50:22,289 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] [2020-11-30 00:50:22,289 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] [2020-11-30 00:50:22,290 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] [2020-11-30 00:50:22,290 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] [2020-11-30 00:50:22,290 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] [2020-11-30 00:50:22,290 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] [2020-11-30 00:50:22,291 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] [2020-11-30 00:50:22,291 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] [2020-11-30 00:50:22,291 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0_32_43_105,QUANTIFIED] [2020-11-30 00:50:22,292 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0_32_43_105,QUANTIFIED] [2020-11-30 00:50:22,292 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_32_43,QUANTIFIED] [2020-11-30 00:50:22,292 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0_32_43_105,QUANTIFIED] [2020-11-30 00:50:22,292 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_32_43,QUANTIFIED] [2020-11-30 00:50:22,293 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0_32_43_105,QUANTIFIED] [2020-11-30 00:50:22,293 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0_32_43_105,QUANTIFIED] [2020-11-30 00:50:22,293 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_32_43,QUANTIFIED] [2020-11-30 00:50:22,294 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0_32_43_105,QUANTIFIED] [2020-11-30 00:50:22,294 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0_32_43_105,QUANTIFIED] [2020-11-30 00:50:22,294 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_30_43,QUANTIFIED] [2020-11-30 00:50:22,295 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_30_43,QUANTIFIED] [2020-11-30 00:50:22,295 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_30_43,QUANTIFIED] [2020-11-30 00:50:22,306 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] [2020-11-30 00:50:22,306 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] [2020-11-30 00:50:22,306 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] [2020-11-30 00:50:22,307 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] [2020-11-30 00:50:22,307 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] [2020-11-30 00:50:22,307 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] [2020-11-30 00:50:22,308 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] [2020-11-30 00:50:22,308 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] [2020-11-30 00:50:22,308 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] [2020-11-30 00:50:22,311 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] [2020-11-30 00:50:22,311 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] [2020-11-30 00:50:22,311 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] [2020-11-30 00:50:22,311 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] [2020-11-30 00:50:22,312 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] [2020-11-30 00:50:22,312 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] [2020-11-30 00:50:22,312 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] [2020-11-30 00:50:22,312 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] [2020-11-30 00:50:22,313 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] [2020-11-30 00:50:22,317 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 12:50:22 BoogieIcfgContainer [2020-11-30 00:50:22,317 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 00:50:22,318 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:50:22,318 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:50:22,319 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:50:22,319 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:41:21" (3/4) ... [2020-11-30 00:50:22,323 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 00:50:22,336 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2020-11-30 00:50:22,336 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-30 00:50:22,337 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 00:50:22,337 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 00:50:22,368 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((y <= 5 && 0 <= a) && a <= 5) && z + x * y == a * b) && cond == 1) && z == 0) && b == y) && 1 <= b) || ((((((((b <= 5 && 1 <= b % 2) && y == ((b + -1) / 2 + -1) / 2) && 1 <= cond) && z * 2 == a * 2 + x) && cond == 1) && z == a * 3) && 1 <= b) && 1 <= (b + -1) / 2 % 2)) || ((((((((((a == z && x == z * 2) && y == (b + -1) / 2) && b <= 5) && 1 <= b % 2) && 1 <= cond) || (((((x == a * 2 && b <= 5) && 1 <= cond) && z == 0) && b / 2 == y) && !(b % 2 == 1))) && 0 <= a) && a <= 5) && cond == 1) && 1 <= b)) || ((((((((((x % -2 == 0 && b <= 5) && 1 <= cond) && 0 <= a) && a <= 5) && cond == 1) && 0 <= 2 * y + 1) && ((a * b == z + x * -1 / -2 * y * 2 && x * -1 / -2 == 0) || ((((((\exists aux_div_v_ULTIMATE.start_main_~y~0_30_43 : int :: (2 * aux_div_v_ULTIMATE.start_main_~y~0_30_43 <= (a * b + -2 * (x * -1 / -2) * y + -1 * z) / (x * -1 / -2) + 2 * y && (a * b + -2 * (x * -1 / -2) * y + -1 * z) / (x * -1 / -2) + 2 * y < 2 * aux_div_v_ULTIMATE.start_main_~y~0_30_43 + 1) && 2 * aux_div_v_ULTIMATE.start_main_~y~0_30_43 <= (a * b + -2 * (x * -1 / -2) * y + -1 * z) / (x * -1 / -2) + 2 * y + 1) && (z * -1 + -2 * (x * -1 / -2) * y + a * b) % (x * -1 / -2) == 0) && (a * b + -2 * (x * -1 / -2) * y + -1 * z) / (x * -1 / -2) < 2) && !(x * -1 / -2 == 0)) && 0 <= (a * b + -2 * (x * -1 / -2) * y + -1 * z) / (x * -1 / -2) + 2 * y + 1) && 0 <= (a * b + -2 * (x * -1 / -2) * y + -1 * z) / (x * -1 / -2)))) && 1 <= b) && x * -1 / -2 % -2 == 0) && (\exists aux_mod_v_ULTIMATE.start_main_~y~0_36_37 : int, aux_div_v_ULTIMATE.start_main_~y~0_36_37 : int :: ((((aux_mod_v_ULTIMATE.start_main_~y~0_36_37 < 2 && 0 <= aux_mod_v_ULTIMATE.start_main_~y~0_36_37) && 2 * aux_mod_v_ULTIMATE.start_main_~y~0_36_37 + 4 * aux_div_v_ULTIMATE.start_main_~y~0_36_37 <= 4) && 0 <= aux_mod_v_ULTIMATE.start_main_~y~0_36_37 + 2 * aux_div_v_ULTIMATE.start_main_~y~0_36_37) && 0 <= 2 * aux_mod_v_ULTIMATE.start_main_~y~0_36_37 + 4 * aux_div_v_ULTIMATE.start_main_~y~0_36_37 + 1) && y <= aux_div_v_ULTIMATE.start_main_~y~0_36_37))) || ((((((((((\exists aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0_32_43_105 : int, aux_div_v_ULTIMATE.start_main_~y~0_32_43 : int :: (((((0 <= aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0_32_43_105 + 2 * y + 1 && aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0_32_43_105 + 2 * y < 2 * aux_div_v_ULTIMATE.start_main_~y~0_32_43 + 1) && 0 <= aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0_32_43_105) && 2 * aux_div_v_ULTIMATE.start_main_~y~0_32_43 <= aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0_32_43_105 + 2 * y) && 0 <= aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0_32_43_105 + 2 * y) && 2 * aux_div_v_ULTIMATE.start_main_~y~0_32_43 <= aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0_32_43_105 + 2 * y + 1) && aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0_32_43_105 < 2) && b <= 5) && a * 8 == x) && 1 <= cond) && 0 <= a) && a <= 5) && cond == 1) && ((a * b == z + x * -1 / -2 * y * 2 && x * -1 / -2 == 0) || ((((((\exists aux_div_v_ULTIMATE.start_main_~y~0_30_43 : int :: (2 * aux_div_v_ULTIMATE.start_main_~y~0_30_43 <= (a * b + -2 * (x * -1 / -2) * y + -1 * z) / (x * -1 / -2) + 2 * y && (a * b + -2 * (x * -1 / -2) * y + -1 * z) / (x * -1 / -2) + 2 * y < 2 * aux_div_v_ULTIMATE.start_main_~y~0_30_43 + 1) && 2 * aux_div_v_ULTIMATE.start_main_~y~0_30_43 <= (a * b + -2 * (x * -1 / -2) * y + -1 * z) / (x * -1 / -2) + 2 * y + 1) && (z * -1 + -2 * (x * -1 / -2) * y + a * b) % (x * -1 / -2) == 0) && (a * b + -2 * (x * -1 / -2) * y + -1 * z) / (x * -1 / -2) < 2) && !(x * -1 / -2 == 0)) && 0 <= (a * b + -2 * (x * -1 / -2) * y + -1 * z) / (x * -1 / -2) + 2 * y + 1) && 0 <= (a * b + -2 * (x * -1 / -2) * y + -1 * z) / (x * -1 / -2)))) && 2 * y <= 4) && 1 <= b) [2020-11-30 00:50:22,368 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((b <= 5 && 1 == cond) && y == ((b + -1) / 2 + -1) / 2) && z == a * b) && z * 2 == a * 2 + x) && cond == 1) && z == a * 3) && 1 <= b) && 1 <= (b + -1) / 2 % 2) || (((((((((b <= 5 && 1 == cond) && a * 8 == x) && 0 <= a) && a <= 5) && z + x * y == a * b) && 0 <= 2 * y + 1) && cond == 1) && 2 * y <= 4) && 1 <= b)) || (((((((((x % -2 == 0 && b <= 5) && 1 == cond) && 0 <= a) && a <= 5) && z + x * y == a * b) && 0 <= 2 * y + 1) && cond == 1) && 1 <= b) && (\exists aux_mod_v_ULTIMATE.start_main_~y~0_36_37 : int, aux_div_v_ULTIMATE.start_main_~y~0_36_37 : int :: ((((aux_mod_v_ULTIMATE.start_main_~y~0_36_37 < 2 && 0 <= aux_mod_v_ULTIMATE.start_main_~y~0_36_37) && 2 * aux_mod_v_ULTIMATE.start_main_~y~0_36_37 + 4 * aux_div_v_ULTIMATE.start_main_~y~0_36_37 <= 4) && 0 <= aux_mod_v_ULTIMATE.start_main_~y~0_36_37 + 2 * aux_div_v_ULTIMATE.start_main_~y~0_36_37) && 0 <= 2 * aux_mod_v_ULTIMATE.start_main_~y~0_36_37 + 4 * aux_div_v_ULTIMATE.start_main_~y~0_36_37 + 1) && y <= aux_div_v_ULTIMATE.start_main_~y~0_36_37))) || ((((((((x == a * 2 && b <= 5) && 1 == cond) && 0 <= a) && a <= 5) && z + x * y == a * b) && cond == 1) && b / 2 == y) && 1 <= b)) || ((((((((y <= 5 && 1 == cond) && 0 <= a) && a <= 5) && z + x * y == a * b) && cond == 1) && z == 0) && b == y) && 1 <= b) [2020-11-30 00:50:22,383 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_ac98ae27-af4c-4743-ab50-69432312eedd/bin/uautomizer/witness.graphml [2020-11-30 00:50:22,383 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:50:22,385 INFO L168 Benchmark]: Toolchain (without parser) took 541992.98 ms. Allocated memory was 92.3 MB in the beginning and 115.3 MB in the end (delta: 23.1 MB). Free memory was 57.9 MB in the beginning and 72.8 MB in the end (delta: -14.9 MB). Peak memory consumption was 8.7 MB. Max. memory is 16.1 GB. [2020-11-30 00:50:22,385 INFO L168 Benchmark]: CDTParser took 0.41 ms. Allocated memory is still 92.3 MB. Free memory was 64.6 MB in the beginning and 64.6 MB in the end (delta: 25.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:50:22,386 INFO L168 Benchmark]: CACSL2BoogieTranslator took 390.13 ms. Allocated memory is still 92.3 MB. Free memory was 57.7 MB in the beginning and 69.3 MB in the end (delta: -11.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 00:50:22,386 INFO L168 Benchmark]: Boogie Procedure Inliner took 61.14 ms. Allocated memory is still 92.3 MB. Free memory was 69.3 MB in the beginning and 68.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:50:22,387 INFO L168 Benchmark]: Boogie Preprocessor took 30.67 ms. Allocated memory is still 92.3 MB. Free memory was 67.5 MB in the beginning and 66.7 MB in the end (delta: 871.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:50:22,387 INFO L168 Benchmark]: RCFGBuilder took 500.18 ms. Allocated memory is still 92.3 MB. Free memory was 66.7 MB in the beginning and 53.8 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-30 00:50:22,388 INFO L168 Benchmark]: TraceAbstraction took 540933.47 ms. Allocated memory was 92.3 MB in the beginning and 115.3 MB in the end (delta: 23.1 MB). Free memory was 53.4 MB in the beginning and 76.0 MB in the end (delta: -22.6 MB). Peak memory consumption was 53.5 MB. Max. memory is 16.1 GB. [2020-11-30 00:50:22,388 INFO L168 Benchmark]: Witness Printer took 65.57 ms. Allocated memory is still 115.3 MB. Free memory was 76.0 MB in the beginning and 72.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 00:50:22,391 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41 ms. Allocated memory is still 92.3 MB. Free memory was 64.6 MB in the beginning and 64.6 MB in the end (delta: 25.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 390.13 ms. Allocated memory is still 92.3 MB. Free memory was 57.7 MB in the beginning and 69.3 MB in the end (delta: -11.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 61.14 ms. Allocated memory is still 92.3 MB. Free memory was 69.3 MB in the beginning and 68.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 30.67 ms. Allocated memory is still 92.3 MB. Free memory was 67.5 MB in the beginning and 66.7 MB in the end (delta: 871.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 500.18 ms. Allocated memory is still 92.3 MB. Free memory was 66.7 MB in the beginning and 53.8 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 540933.47 ms. Allocated memory was 92.3 MB in the beginning and 115.3 MB in the end (delta: 23.1 MB). Free memory was 53.4 MB in the beginning and 76.0 MB in the end (delta: -22.6 MB). Peak memory consumption was 53.5 MB. Max. memory is 16.1 GB. * Witness Printer took 65.57 ms. Allocated memory is still 115.3 MB. Free memory was 76.0 MB in the beginning and 72.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_30_43,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_30_43,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_30_43,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0_32_43_105,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0_32_43_105,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_32_43,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0_32_43_105,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_32_43,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0_32_43_105,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0_32_43_105,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_32_43,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0_32_43_105,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0_32_43_105,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_30_43,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_30_43,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_30_43,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_30_43,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_30_43,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_30_43,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0_32_43_105,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0_32_43_105,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_32_43,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0_32_43_105,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_32_43,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0_32_43_105,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0_32_43_105,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_32_43,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0_32_43_105,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0_32_43_105,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_30_43,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_30_43,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_30_43,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 6]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 6]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 12]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 34]: Loop Invariant [2020-11-30 00:50:22,408 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_30_43,QUANTIFIED] [2020-11-30 00:50:22,409 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_30_43,QUANTIFIED] [2020-11-30 00:50:22,409 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_30_43,QUANTIFIED] [2020-11-30 00:50:22,409 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] [2020-11-30 00:50:22,409 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] [2020-11-30 00:50:22,410 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] [2020-11-30 00:50:22,410 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] [2020-11-30 00:50:22,410 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] [2020-11-30 00:50:22,410 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] [2020-11-30 00:50:22,410 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] [2020-11-30 00:50:22,411 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] [2020-11-30 00:50:22,411 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] [2020-11-30 00:50:22,411 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0_32_43_105,QUANTIFIED] [2020-11-30 00:50:22,411 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0_32_43_105,QUANTIFIED] [2020-11-30 00:50:22,412 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_32_43,QUANTIFIED] [2020-11-30 00:50:22,412 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0_32_43_105,QUANTIFIED] [2020-11-30 00:50:22,412 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_32_43,QUANTIFIED] [2020-11-30 00:50:22,412 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0_32_43_105,QUANTIFIED] [2020-11-30 00:50:22,413 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0_32_43_105,QUANTIFIED] [2020-11-30 00:50:22,413 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_32_43,QUANTIFIED] [2020-11-30 00:50:22,413 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0_32_43_105,QUANTIFIED] [2020-11-30 00:50:22,413 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0_32_43_105,QUANTIFIED] [2020-11-30 00:50:22,414 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_30_43,QUANTIFIED] [2020-11-30 00:50:22,414 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_30_43,QUANTIFIED] [2020-11-30 00:50:22,414 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_30_43,QUANTIFIED] [2020-11-30 00:50:22,418 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_30_43,QUANTIFIED] [2020-11-30 00:50:22,418 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_30_43,QUANTIFIED] [2020-11-30 00:50:22,418 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_30_43,QUANTIFIED] [2020-11-30 00:50:22,419 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] [2020-11-30 00:50:22,419 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] [2020-11-30 00:50:22,419 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] [2020-11-30 00:50:22,419 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] [2020-11-30 00:50:22,419 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] [2020-11-30 00:50:22,420 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] [2020-11-30 00:50:22,420 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] [2020-11-30 00:50:22,420 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] [2020-11-30 00:50:22,420 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] [2020-11-30 00:50:22,420 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0_32_43_105,QUANTIFIED] [2020-11-30 00:50:22,421 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0_32_43_105,QUANTIFIED] [2020-11-30 00:50:22,421 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_32_43,QUANTIFIED] [2020-11-30 00:50:22,421 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0_32_43_105,QUANTIFIED] [2020-11-30 00:50:22,422 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_32_43,QUANTIFIED] [2020-11-30 00:50:22,422 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0_32_43_105,QUANTIFIED] [2020-11-30 00:50:22,422 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0_32_43_105,QUANTIFIED] [2020-11-30 00:50:22,422 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_32_43,QUANTIFIED] [2020-11-30 00:50:22,423 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0_32_43_105,QUANTIFIED] [2020-11-30 00:50:22,423 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0_32_43_105,QUANTIFIED] [2020-11-30 00:50:22,423 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_30_43,QUANTIFIED] [2020-11-30 00:50:22,423 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_30_43,QUANTIFIED] [2020-11-30 00:50:22,424 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_30_43,QUANTIFIED] Derived loop invariant: ((((((((((y <= 5 && 0 <= a) && a <= 5) && z + x * y == a * b) && cond == 1) && z == 0) && b == y) && 1 <= b) || ((((((((b <= 5 && 1 <= b % 2) && y == ((b + -1) / 2 + -1) / 2) && 1 <= cond) && z * 2 == a * 2 + x) && cond == 1) && z == a * 3) && 1 <= b) && 1 <= (b + -1) / 2 % 2)) || ((((((((((a == z && x == z * 2) && y == (b + -1) / 2) && b <= 5) && 1 <= b % 2) && 1 <= cond) || (((((x == a * 2 && b <= 5) && 1 <= cond) && z == 0) && b / 2 == y) && !(b % 2 == 1))) && 0 <= a) && a <= 5) && cond == 1) && 1 <= b)) || ((((((((((x % -2 == 0 && b <= 5) && 1 <= cond) && 0 <= a) && a <= 5) && cond == 1) && 0 <= 2 * y + 1) && ((a * b == z + x * -1 / -2 * y * 2 && x * -1 / -2 == 0) || ((((((\exists aux_div_v_ULTIMATE.start_main_~y~0_30_43 : int :: (2 * aux_div_v_ULTIMATE.start_main_~y~0_30_43 <= (a * b + -2 * (x * -1 / -2) * y + -1 * z) / (x * -1 / -2) + 2 * y && (a * b + -2 * (x * -1 / -2) * y + -1 * z) / (x * -1 / -2) + 2 * y < 2 * aux_div_v_ULTIMATE.start_main_~y~0_30_43 + 1) && 2 * aux_div_v_ULTIMATE.start_main_~y~0_30_43 <= (a * b + -2 * (x * -1 / -2) * y + -1 * z) / (x * -1 / -2) + 2 * y + 1) && (z * -1 + -2 * (x * -1 / -2) * y + a * b) % (x * -1 / -2) == 0) && (a * b + -2 * (x * -1 / -2) * y + -1 * z) / (x * -1 / -2) < 2) && !(x * -1 / -2 == 0)) && 0 <= (a * b + -2 * (x * -1 / -2) * y + -1 * z) / (x * -1 / -2) + 2 * y + 1) && 0 <= (a * b + -2 * (x * -1 / -2) * y + -1 * z) / (x * -1 / -2)))) && 1 <= b) && x * -1 / -2 % -2 == 0) && (\exists aux_mod_v_ULTIMATE.start_main_~y~0_36_37 : int, aux_div_v_ULTIMATE.start_main_~y~0_36_37 : int :: ((((aux_mod_v_ULTIMATE.start_main_~y~0_36_37 < 2 && 0 <= aux_mod_v_ULTIMATE.start_main_~y~0_36_37) && 2 * aux_mod_v_ULTIMATE.start_main_~y~0_36_37 + 4 * aux_div_v_ULTIMATE.start_main_~y~0_36_37 <= 4) && 0 <= aux_mod_v_ULTIMATE.start_main_~y~0_36_37 + 2 * aux_div_v_ULTIMATE.start_main_~y~0_36_37) && 0 <= 2 * aux_mod_v_ULTIMATE.start_main_~y~0_36_37 + 4 * aux_div_v_ULTIMATE.start_main_~y~0_36_37 + 1) && y <= aux_div_v_ULTIMATE.start_main_~y~0_36_37))) || ((((((((((\exists aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0_32_43_105 : int, aux_div_v_ULTIMATE.start_main_~y~0_32_43 : int :: (((((0 <= aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0_32_43_105 + 2 * y + 1 && aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0_32_43_105 + 2 * y < 2 * aux_div_v_ULTIMATE.start_main_~y~0_32_43 + 1) && 0 <= aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0_32_43_105) && 2 * aux_div_v_ULTIMATE.start_main_~y~0_32_43 <= aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0_32_43_105 + 2 * y) && 0 <= aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0_32_43_105 + 2 * y) && 2 * aux_div_v_ULTIMATE.start_main_~y~0_32_43 <= aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0_32_43_105 + 2 * y + 1) && aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0_32_43_105 < 2) && b <= 5) && a * 8 == x) && 1 <= cond) && 0 <= a) && a <= 5) && cond == 1) && ((a * b == z + x * -1 / -2 * y * 2 && x * -1 / -2 == 0) || ((((((\exists aux_div_v_ULTIMATE.start_main_~y~0_30_43 : int :: (2 * aux_div_v_ULTIMATE.start_main_~y~0_30_43 <= (a * b + -2 * (x * -1 / -2) * y + -1 * z) / (x * -1 / -2) + 2 * y && (a * b + -2 * (x * -1 / -2) * y + -1 * z) / (x * -1 / -2) + 2 * y < 2 * aux_div_v_ULTIMATE.start_main_~y~0_30_43 + 1) && 2 * aux_div_v_ULTIMATE.start_main_~y~0_30_43 <= (a * b + -2 * (x * -1 / -2) * y + -1 * z) / (x * -1 / -2) + 2 * y + 1) && (z * -1 + -2 * (x * -1 / -2) * y + a * b) % (x * -1 / -2) == 0) && (a * b + -2 * (x * -1 / -2) * y + -1 * z) / (x * -1 / -2) < 2) && !(x * -1 / -2 == 0)) && 0 <= (a * b + -2 * (x * -1 / -2) * y + -1 * z) / (x * -1 / -2) + 2 * y + 1) && 0 <= (a * b + -2 * (x * -1 / -2) * y + -1 * z) / (x * -1 / -2)))) && 2 * y <= 4) && 1 <= b) - InvariantResult [Line: 36]: Loop Invariant [2020-11-30 00:50:22,426 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] [2020-11-30 00:50:22,427 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] [2020-11-30 00:50:22,427 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] [2020-11-30 00:50:22,427 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] [2020-11-30 00:50:22,427 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] [2020-11-30 00:50:22,428 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] [2020-11-30 00:50:22,428 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] [2020-11-30 00:50:22,428 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] [2020-11-30 00:50:22,428 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] [2020-11-30 00:50:22,429 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] [2020-11-30 00:50:22,430 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] [2020-11-30 00:50:22,430 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] [2020-11-30 00:50:22,430 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] [2020-11-30 00:50:22,430 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] [2020-11-30 00:50:22,431 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] [2020-11-30 00:50:22,431 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] [2020-11-30 00:50:22,431 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] [2020-11-30 00:50:22,431 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~y~0_36_37,QUANTIFIED] Derived loop invariant: (((((((((((b <= 5 && 1 == cond) && y == ((b + -1) / 2 + -1) / 2) && z == a * b) && z * 2 == a * 2 + x) && cond == 1) && z == a * 3) && 1 <= b) && 1 <= (b + -1) / 2 % 2) || (((((((((b <= 5 && 1 == cond) && a * 8 == x) && 0 <= a) && a <= 5) && z + x * y == a * b) && 0 <= 2 * y + 1) && cond == 1) && 2 * y <= 4) && 1 <= b)) || (((((((((x % -2 == 0 && b <= 5) && 1 == cond) && 0 <= a) && a <= 5) && z + x * y == a * b) && 0 <= 2 * y + 1) && cond == 1) && 1 <= b) && (\exists aux_mod_v_ULTIMATE.start_main_~y~0_36_37 : int, aux_div_v_ULTIMATE.start_main_~y~0_36_37 : int :: ((((aux_mod_v_ULTIMATE.start_main_~y~0_36_37 < 2 && 0 <= aux_mod_v_ULTIMATE.start_main_~y~0_36_37) && 2 * aux_mod_v_ULTIMATE.start_main_~y~0_36_37 + 4 * aux_div_v_ULTIMATE.start_main_~y~0_36_37 <= 4) && 0 <= aux_mod_v_ULTIMATE.start_main_~y~0_36_37 + 2 * aux_div_v_ULTIMATE.start_main_~y~0_36_37) && 0 <= 2 * aux_mod_v_ULTIMATE.start_main_~y~0_36_37 + 4 * aux_div_v_ULTIMATE.start_main_~y~0_36_37 + 1) && y <= aux_div_v_ULTIMATE.start_main_~y~0_36_37))) || ((((((((x == a * 2 && b <= 5) && 1 == cond) && 0 <= a) && a <= 5) && z + x * y == a * b) && cond == 1) && b / 2 == y) && 1 <= b)) || ((((((((y <= 5 && 1 == cond) && 0 <= a) && a <= 5) && z + x * y == a * b) && cond == 1) && z == 0) && b == y) && 1 <= b) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 23 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 373.9s, OverallIterations: 13, TraceHistogramMax: 6, AutomataDifference: 114.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 166.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 157 SDtfs, 426 SDslu, 452 SDs, 0 SdLazy, 1181 SolverSat, 140 SolverUnsat, 22 SolverUnknown, 0 SolverNotchecked, 75.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 309 GetRequests, 142 SyntacticMatches, 2 SemanticMatches, 165 ConstructedPredicates, 4 IntricatePredicates, 1 DeprecatedPredicates, 344 ImplicationChecksByTransitivity, 118.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 13 MinimizatonAttempts, 67 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 28 NumberOfFragments, 1003 HoareAnnotationTreeSize, 4 FomulaSimplifications, 3310 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 4 FomulaSimplificationsInter, 2641 FormulaSimplificationTreeSizeReductionInter, 166.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 255.4s InterpolantComputationTime, 264 NumberOfCodeBlocks, 256 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 251 ConstructedInterpolants, 11 QuantifiedInterpolants, 83127 SizeOfPredicates, 110 NumberOfNonLiveVariables, 1075 ConjunctsInSsa, 313 ConjunctsInUnsatCore, 13 InterpolantComputations, 4 PerfectInterpolantSequences, 74/162 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...