./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound10.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg --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 6d5fb336862157190b75f459fa5ac35efb8ca70e207f909b082fde37cf98e7f7 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 08:35:45,744 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 08:35:45,746 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 08:35:45,807 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 08:35:45,807 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 08:35:45,809 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 08:35:45,811 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 08:35:45,813 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 08:35:45,815 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 08:35:45,816 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 08:35:45,817 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 08:35:45,819 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 08:35:45,819 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 08:35:45,820 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 08:35:45,822 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 08:35:45,823 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 08:35:45,824 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 08:35:45,826 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 08:35:45,828 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 08:35:45,830 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 08:35:45,832 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 08:35:45,833 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 08:35:45,835 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 08:35:45,836 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 08:35:45,840 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 08:35:45,840 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 08:35:45,841 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 08:35:45,842 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 08:35:45,842 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 08:35:45,844 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 08:35:45,844 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 08:35:45,845 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 08:35:45,846 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 08:35:45,846 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 08:35:45,848 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 08:35:45,848 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 08:35:45,849 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 08:35:45,849 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 08:35:45,849 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 08:35:45,850 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 08:35:45,851 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 08:35:45,851 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-28 08:35:45,876 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 08:35:45,876 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 08:35:45,876 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 08:35:45,876 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 08:35:45,877 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 08:35:45,878 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 08:35:45,878 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 08:35:45,878 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 08:35:45,878 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 08:35:45,878 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 08:35:45,879 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 08:35:45,879 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 08:35:45,879 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 08:35:45,879 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 08:35:45,879 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 08:35:45,880 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 08:35:45,880 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 08:35:45,880 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 08:35:45,880 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 08:35:45,880 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 08:35:45,881 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 08:35:45,881 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 08:35:45,881 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 08:35:45,881 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 08:35:45,881 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 08:35:45,882 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 08:35:45,882 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 08:35:45,882 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 08:35:45,882 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 08:35:45,882 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 08:35:45,882 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 08:35:45,883 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 08:35:45,883 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_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6d5fb336862157190b75f459fa5ac35efb8ca70e207f909b082fde37cf98e7f7 [2021-10-28 08:35:46,137 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 08:35:46,167 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 08:35:46,170 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 08:35:46,172 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 08:35:46,176 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 08:35:46,178 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound10.c [2021-10-28 08:35:46,271 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/data/d94479b70/5b8ea645803d477cb3c58cb806ad6be3/FLAG46db8253a [2021-10-28 08:35:46,748 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 08:35:46,749 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound10.c [2021-10-28 08:35:46,755 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/data/d94479b70/5b8ea645803d477cb3c58cb806ad6be3/FLAG46db8253a [2021-10-28 08:35:47,234 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/data/d94479b70/5b8ea645803d477cb3c58cb806ad6be3 [2021-10-28 08:35:47,236 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 08:35:47,239 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 08:35:47,244 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 08:35:47,245 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 08:35:47,248 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 08:35:47,249 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:35:47" (1/1) ... [2021-10-28 08:35:47,250 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2dbb53fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:35:47, skipping insertion in model container [2021-10-28 08:35:47,251 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:35:47" (1/1) ... [2021-10-28 08:35:47,257 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 08:35:47,272 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 08:35:47,450 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound10.c[538,551] [2021-10-28 08:35:47,466 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:35:47,475 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 08:35:47,488 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound10.c[538,551] [2021-10-28 08:35:47,496 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:35:47,510 INFO L208 MainTranslator]: Completed translation [2021-10-28 08:35:47,510 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:35:47 WrapperNode [2021-10-28 08:35:47,510 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 08:35:47,512 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 08:35:47,512 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 08:35:47,512 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 08:35:47,519 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:35:47" (1/1) ... [2021-10-28 08:35:47,526 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:35:47" (1/1) ... [2021-10-28 08:35:47,549 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 08:35:47,550 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 08:35:47,550 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 08:35:47,550 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 08:35:47,558 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:35:47" (1/1) ... [2021-10-28 08:35:47,558 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:35:47" (1/1) ... [2021-10-28 08:35:47,560 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:35:47" (1/1) ... [2021-10-28 08:35:47,561 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:35:47" (1/1) ... [2021-10-28 08:35:47,578 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:35:47" (1/1) ... [2021-10-28 08:35:47,583 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:35:47" (1/1) ... [2021-10-28 08:35:47,584 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:35:47" (1/1) ... [2021-10-28 08:35:47,586 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 08:35:47,587 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 08:35:47,587 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 08:35:47,588 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 08:35:47,599 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:35:47" (1/1) ... [2021-10-28 08:35:47,608 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 08:35:47,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:35:47,642 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 08:35:47,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 08:35:47,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 08:35:47,698 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 08:35:47,698 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 08:35:47,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 08:35:48,025 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 08:35:48,026 INFO L299 CfgBuilder]: Removed 26 assume(true) statements. [2021-10-28 08:35:48,027 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:35:48 BoogieIcfgContainer [2021-10-28 08:35:48,028 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 08:35:48,039 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 08:35:48,039 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 08:35:48,043 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 08:35:48,043 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 08:35:47" (1/3) ... [2021-10-28 08:35:48,044 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7508b17b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 08:35:48, skipping insertion in model container [2021-10-28 08:35:48,044 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:35:47" (2/3) ... [2021-10-28 08:35:48,044 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7508b17b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 08:35:48, skipping insertion in model container [2021-10-28 08:35:48,045 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:35:48" (3/3) ... [2021-10-28 08:35:48,046 INFO L111 eAbstractionObserver]: Analyzing ICFG hard-ll_valuebound10.c [2021-10-28 08:35:48,051 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 08:35:48,052 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2021-10-28 08:35:48,115 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 08:35:48,122 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-28 08:35:48,122 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-10-28 08:35:48,138 INFO L276 IsEmpty]: Start isEmpty. Operand has 43 states, 35 states have (on average 1.6857142857142857) internal successors, (59), 42 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:35:48,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-28 08:35:48,143 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:35:48,144 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:35:48,145 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-28 08:35:48,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:35:48,150 INFO L85 PathProgramCache]: Analyzing trace with hash 330581779, now seen corresponding path program 1 times [2021-10-28 08:35:48,160 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:35:48,160 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11759247] [2021-10-28 08:35:48,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:35:48,162 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:35:48,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:35:48,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:35:48,309 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:35:48,309 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11759247] [2021-10-28 08:35:48,310 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11759247] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:35:48,310 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:35:48,311 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 08:35:48,312 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285598324] [2021-10-28 08:35:48,317 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-28 08:35:48,318 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:35:48,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-28 08:35:48,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 08:35:48,333 INFO L87 Difference]: Start difference. First operand has 43 states, 35 states have (on average 1.6857142857142857) internal successors, (59), 42 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:35:48,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:35:48,352 INFO L93 Difference]: Finished difference Result 83 states and 114 transitions. [2021-10-28 08:35:48,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 08:35:48,353 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-10-28 08:35:48,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:35:48,361 INFO L225 Difference]: With dead ends: 83 [2021-10-28 08:35:48,362 INFO L226 Difference]: Without dead ends: 39 [2021-10-28 08:35:48,364 INFO L786 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 [2021-10-28 08:35:48,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2021-10-28 08:35:48,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2021-10-28 08:35:48,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 32 states have (on average 1.28125) internal successors, (41), 38 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:35:48,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 41 transitions. [2021-10-28 08:35:48,398 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 41 transitions. Word has length 11 [2021-10-28 08:35:48,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:35:48,399 INFO L470 AbstractCegarLoop]: Abstraction has 39 states and 41 transitions. [2021-10-28 08:35:48,399 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:35:48,399 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 41 transitions. [2021-10-28 08:35:48,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-28 08:35:48,400 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:35:48,400 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:35:48,400 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 08:35:48,401 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-28 08:35:48,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:35:48,402 INFO L85 PathProgramCache]: Analyzing trace with hash -1507472743, now seen corresponding path program 1 times [2021-10-28 08:35:48,402 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:35:48,403 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210570086] [2021-10-28 08:35:48,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:35:48,403 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:35:48,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:35:48,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:35:48,530 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:35:48,531 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210570086] [2021-10-28 08:35:48,531 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210570086] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:35:48,532 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:35:48,532 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 08:35:48,532 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263217817] [2021-10-28 08:35:48,534 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 08:35:48,534 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:35:48,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 08:35:48,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 08:35:48,538 INFO L87 Difference]: Start difference. First operand 39 states and 41 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:35:48,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:35:48,648 INFO L93 Difference]: Finished difference Result 58 states and 61 transitions. [2021-10-28 08:35:48,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 08:35:48,653 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-10-28 08:35:48,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:35:48,655 INFO L225 Difference]: With dead ends: 58 [2021-10-28 08:35:48,657 INFO L226 Difference]: Without dead ends: 56 [2021-10-28 08:35:48,658 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-28 08:35:48,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2021-10-28 08:35:48,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 37. [2021-10-28 08:35:48,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 31 states have (on average 1.2580645161290323) internal successors, (39), 36 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:35:48,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 39 transitions. [2021-10-28 08:35:48,671 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 39 transitions. Word has length 11 [2021-10-28 08:35:48,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:35:48,672 INFO L470 AbstractCegarLoop]: Abstraction has 37 states and 39 transitions. [2021-10-28 08:35:48,672 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:35:48,672 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 39 transitions. [2021-10-28 08:35:48,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-28 08:35:48,674 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:35:48,674 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:35:48,675 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 08:35:48,675 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-28 08:35:48,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:35:48,678 INFO L85 PathProgramCache]: Analyzing trace with hash -1277171076, now seen corresponding path program 1 times [2021-10-28 08:35:48,679 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:35:48,680 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51773895] [2021-10-28 08:35:48,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:35:48,681 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:35:48,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:35:48,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:35:48,785 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:35:48,786 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51773895] [2021-10-28 08:35:48,786 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51773895] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:35:48,786 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:35:48,786 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 08:35:48,786 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219891269] [2021-10-28 08:35:48,787 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 08:35:48,787 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:35:48,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 08:35:48,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 08:35:48,788 INFO L87 Difference]: Start difference. First operand 37 states and 39 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:35:48,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:35:48,919 INFO L93 Difference]: Finished difference Result 56 states and 59 transitions. [2021-10-28 08:35:48,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 08:35:48,920 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-10-28 08:35:48,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:35:48,921 INFO L225 Difference]: With dead ends: 56 [2021-10-28 08:35:48,921 INFO L226 Difference]: Without dead ends: 54 [2021-10-28 08:35:48,921 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-28 08:35:48,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2021-10-28 08:35:48,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 35. [2021-10-28 08:35:48,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 30 states have (on average 1.2333333333333334) internal successors, (37), 34 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:35:48,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 37 transitions. [2021-10-28 08:35:48,930 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 37 transitions. Word has length 13 [2021-10-28 08:35:48,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:35:48,930 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 37 transitions. [2021-10-28 08:35:48,935 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:35:48,935 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2021-10-28 08:35:48,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-28 08:35:48,936 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:35:48,936 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:35:48,936 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-28 08:35:48,936 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-28 08:35:48,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:35:48,937 INFO L85 PathProgramCache]: Analyzing trace with hash 999399167, now seen corresponding path program 1 times [2021-10-28 08:35:48,937 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:35:48,938 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858299431] [2021-10-28 08:35:48,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:35:48,939 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:35:48,961 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 08:35:48,962 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1013270311] [2021-10-28 08:35:48,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:35:48,963 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:35:48,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:35:48,968 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:35:48,970 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-28 08:35:49,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:35:49,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-28 08:35:49,033 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:35:49,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:35:49,241 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:35:49,242 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858299431] [2021-10-28 08:35:49,242 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 08:35:49,242 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1013270311] [2021-10-28 08:35:49,242 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1013270311] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:35:49,242 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:35:49,243 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 08:35:49,243 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292921840] [2021-10-28 08:35:49,243 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 08:35:49,244 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:35:49,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 08:35:49,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 08:35:49,245 INFO L87 Difference]: Start difference. First operand 35 states and 37 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:35:49,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:35:49,392 INFO L93 Difference]: Finished difference Result 76 states and 82 transitions. [2021-10-28 08:35:49,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 08:35:49,393 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-10-28 08:35:49,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:35:49,394 INFO L225 Difference]: With dead ends: 76 [2021-10-28 08:35:49,394 INFO L226 Difference]: Without dead ends: 54 [2021-10-28 08:35:49,395 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-28 08:35:49,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2021-10-28 08:35:49,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 49. [2021-10-28 08:35:49,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 44 states have (on average 1.2045454545454546) internal successors, (53), 48 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:35:49,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 53 transitions. [2021-10-28 08:35:49,414 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 53 transitions. Word has length 15 [2021-10-28 08:35:49,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:35:49,415 INFO L470 AbstractCegarLoop]: Abstraction has 49 states and 53 transitions. [2021-10-28 08:35:49,415 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:35:49,415 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 53 transitions. [2021-10-28 08:35:49,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-28 08:35:49,416 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:35:49,416 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:35:49,451 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-28 08:35:49,631 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:35:49,632 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-28 08:35:49,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:35:49,633 INFO L85 PathProgramCache]: Analyzing trace with hash 392223696, now seen corresponding path program 1 times [2021-10-28 08:35:49,633 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:35:49,633 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452086253] [2021-10-28 08:35:49,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:35:49,634 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:35:49,655 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 08:35:49,662 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2792824] [2021-10-28 08:35:49,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:35:49,663 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:35:49,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:35:49,664 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:35:49,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-28 08:35:49,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:35:49,742 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-28 08:35:49,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:35:50,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:35:50,170 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:35:50,171 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452086253] [2021-10-28 08:35:50,171 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 08:35:50,171 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2792824] [2021-10-28 08:35:50,172 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2792824] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:35:50,172 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:35:50,173 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-28 08:35:50,173 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372522097] [2021-10-28 08:35:50,173 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 08:35:50,173 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:35:50,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 08:35:50,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-28 08:35:50,176 INFO L87 Difference]: Start difference. First operand 49 states and 53 transitions. Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:35:50,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:35:50,377 INFO L93 Difference]: Finished difference Result 53 states and 55 transitions. [2021-10-28 08:35:50,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 08:35:50,378 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-10-28 08:35:50,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:35:50,382 INFO L225 Difference]: With dead ends: 53 [2021-10-28 08:35:50,383 INFO L226 Difference]: Without dead ends: 42 [2021-10-28 08:35:50,384 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-10-28 08:35:50,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2021-10-28 08:35:50,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2021-10-28 08:35:50,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 37 states have (on average 1.1891891891891893) internal successors, (44), 41 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:35:50,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 44 transitions. [2021-10-28 08:35:50,402 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 44 transitions. Word has length 18 [2021-10-28 08:35:50,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:35:50,405 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 44 transitions. [2021-10-28 08:35:50,405 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:35:50,405 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 44 transitions. [2021-10-28 08:35:50,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-28 08:35:50,407 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:35:50,407 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:35:50,452 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-10-28 08:35:50,620 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:35:50,621 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-28 08:35:50,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:35:50,621 INFO L85 PathProgramCache]: Analyzing trace with hash 434992196, now seen corresponding path program 1 times [2021-10-28 08:35:50,622 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:35:50,622 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654190539] [2021-10-28 08:35:50,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:35:50,622 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:35:50,643 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 08:35:50,643 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1858997111] [2021-10-28 08:35:50,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:35:50,644 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:35:50,644 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:35:50,647 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:35:50,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-28 08:35:50,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:35:50,744 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-28 08:35:50,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:35:51,063 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:35:51,063 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:35:51,063 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654190539] [2021-10-28 08:35:51,064 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 08:35:51,064 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1858997111] [2021-10-28 08:35:51,064 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1858997111] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:35:51,064 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 08:35:51,064 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2021-10-28 08:35:51,065 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795057420] [2021-10-28 08:35:51,065 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 08:35:51,065 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:35:51,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 08:35:51,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-28 08:35:51,066 INFO L87 Difference]: Start difference. First operand 42 states and 44 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:35:51,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:35:51,380 INFO L93 Difference]: Finished difference Result 91 states and 100 transitions. [2021-10-28 08:35:51,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 08:35:51,380 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-10-28 08:35:51,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:35:51,383 INFO L225 Difference]: With dead ends: 91 [2021-10-28 08:35:51,383 INFO L226 Difference]: Without dead ends: 69 [2021-10-28 08:35:51,384 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2021-10-28 08:35:51,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2021-10-28 08:35:51,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 62. [2021-10-28 08:35:51,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 57 states have (on average 1.1929824561403508) internal successors, (68), 61 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:35:51,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 68 transitions. [2021-10-28 08:35:51,397 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 68 transitions. Word has length 22 [2021-10-28 08:35:51,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:35:51,397 INFO L470 AbstractCegarLoop]: Abstraction has 62 states and 68 transitions. [2021-10-28 08:35:51,398 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:35:51,398 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 68 transitions. [2021-10-28 08:35:51,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-28 08:35:51,399 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:35:51,399 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:35:51,439 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-28 08:35:51,619 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-10-28 08:35:51,620 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-28 08:35:51,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:35:51,620 INFO L85 PathProgramCache]: Analyzing trace with hash 941114475, now seen corresponding path program 1 times [2021-10-28 08:35:51,620 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:35:51,621 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183551074] [2021-10-28 08:35:51,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:35:51,621 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:35:51,632 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 08:35:51,632 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1750311231] [2021-10-28 08:35:51,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:35:51,633 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:35:51,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:35:51,634 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:35:51,649 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-28 08:35:51,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:35:51,764 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-28 08:35:51,766 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:35:52,403 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:35:52,404 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:35:52,404 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183551074] [2021-10-28 08:35:52,404 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 08:35:52,404 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1750311231] [2021-10-28 08:35:52,405 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1750311231] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:35:52,405 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 08:35:52,405 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2021-10-28 08:35:52,405 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937616591] [2021-10-28 08:35:52,406 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 08:35:52,406 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:35:52,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 08:35:52,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-28 08:35:52,407 INFO L87 Difference]: Start difference. First operand 62 states and 68 transitions. Second operand has 8 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:35:52,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:35:52,776 INFO L93 Difference]: Finished difference Result 73 states and 78 transitions. [2021-10-28 08:35:52,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-28 08:35:52,777 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-10-28 08:35:52,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:35:52,777 INFO L225 Difference]: With dead ends: 73 [2021-10-28 08:35:52,778 INFO L226 Difference]: Without dead ends: 62 [2021-10-28 08:35:52,778 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2021-10-28 08:35:52,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2021-10-28 08:35:52,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2021-10-28 08:35:52,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 57 states have (on average 1.1578947368421053) internal successors, (66), 61 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:35:52,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 66 transitions. [2021-10-28 08:35:52,786 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 66 transitions. Word has length 25 [2021-10-28 08:35:52,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:35:52,786 INFO L470 AbstractCegarLoop]: Abstraction has 62 states and 66 transitions. [2021-10-28 08:35:52,787 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:35:52,787 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 66 transitions. [2021-10-28 08:35:52,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-10-28 08:35:52,788 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:35:52,788 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:35:52,825 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-28 08:35:53,001 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:35:53,002 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-28 08:35:53,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:35:53,002 INFO L85 PathProgramCache]: Analyzing trace with hash -919005345, now seen corresponding path program 2 times [2021-10-28 08:35:53,002 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:35:53,002 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277762463] [2021-10-28 08:35:53,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:35:53,003 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:35:53,015 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 08:35:53,015 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1377705863] [2021-10-28 08:35:53,016 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 08:35:53,016 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:35:53,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:35:53,017 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:35:53,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-28 08:35:53,150 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 08:35:53,151 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:35:53,152 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 22 conjunts are in the unsatisfiable core [2021-10-28 08:35:53,154 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:35:53,412 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:35:53,412 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:35:53,413 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277762463] [2021-10-28 08:35:53,413 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 08:35:53,415 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1377705863] [2021-10-28 08:35:53,418 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1377705863] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:35:53,418 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 08:35:53,419 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2021-10-28 08:35:53,419 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954074776] [2021-10-28 08:35:53,419 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 08:35:53,419 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:35:53,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 08:35:53,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-28 08:35:53,421 INFO L87 Difference]: Start difference. First operand 62 states and 66 transitions. Second operand has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 7 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:35:53,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:35:53,637 INFO L93 Difference]: Finished difference Result 119 states and 133 transitions. [2021-10-28 08:35:53,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 08:35:53,638 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 7 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-10-28 08:35:53,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:35:53,639 INFO L225 Difference]: With dead ends: 119 [2021-10-28 08:35:53,639 INFO L226 Difference]: Without dead ends: 97 [2021-10-28 08:35:53,639 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-10-28 08:35:53,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2021-10-28 08:35:53,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 81. [2021-10-28 08:35:53,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 76 states have (on average 1.1842105263157894) internal successors, (90), 80 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:35:53,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 90 transitions. [2021-10-28 08:35:53,650 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 90 transitions. Word has length 29 [2021-10-28 08:35:53,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:35:53,650 INFO L470 AbstractCegarLoop]: Abstraction has 81 states and 90 transitions. [2021-10-28 08:35:53,651 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 7 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:35:53,651 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 90 transitions. [2021-10-28 08:35:53,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-28 08:35:53,652 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:35:53,652 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:35:53,689 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-10-28 08:35:53,876 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2021-10-28 08:35:53,877 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-28 08:35:53,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:35:53,877 INFO L85 PathProgramCache]: Analyzing trace with hash -36466664, now seen corresponding path program 1 times [2021-10-28 08:35:53,877 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:35:53,877 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637018581] [2021-10-28 08:35:53,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:35:53,878 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:35:53,889 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 08:35:53,890 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1163555574] [2021-10-28 08:35:53,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:35:53,890 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:35:53,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:35:53,891 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:35:53,905 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-10-28 08:35:54,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:35:54,084 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 30 conjunts are in the unsatisfiable core [2021-10-28 08:35:54,086 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:35:54,782 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:35:54,783 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:35:54,783 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637018581] [2021-10-28 08:35:54,783 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 08:35:54,783 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1163555574] [2021-10-28 08:35:54,783 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1163555574] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:35:54,783 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 08:35:54,783 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2021-10-28 08:35:54,784 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158474395] [2021-10-28 08:35:54,784 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-28 08:35:54,784 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:35:54,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-28 08:35:54,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-10-28 08:35:54,785 INFO L87 Difference]: Start difference. First operand 81 states and 90 transitions. Second operand has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:35:55,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:35:55,056 INFO L93 Difference]: Finished difference Result 92 states and 100 transitions. [2021-10-28 08:35:55,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-28 08:35:55,056 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-10-28 08:35:55,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:35:55,058 INFO L225 Difference]: With dead ends: 92 [2021-10-28 08:35:55,059 INFO L226 Difference]: Without dead ends: 90 [2021-10-28 08:35:55,059 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2021-10-28 08:35:55,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2021-10-28 08:35:55,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 83. [2021-10-28 08:35:55,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 78 states have (on average 1.1794871794871795) internal successors, (92), 82 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:35:55,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 92 transitions. [2021-10-28 08:35:55,069 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 92 transitions. Word has length 31 [2021-10-28 08:35:55,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:35:55,069 INFO L470 AbstractCegarLoop]: Abstraction has 83 states and 92 transitions. [2021-10-28 08:35:55,069 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:35:55,070 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 92 transitions. [2021-10-28 08:35:55,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-28 08:35:55,071 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:35:55,071 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:35:55,108 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-10-28 08:35:55,296 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:35:55,297 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-28 08:35:55,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:35:55,297 INFO L85 PathProgramCache]: Analyzing trace with hash -1961752720, now seen corresponding path program 2 times [2021-10-28 08:35:55,297 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:35:55,298 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385136075] [2021-10-28 08:35:55,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:35:55,298 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:35:55,309 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 08:35:55,309 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1316495280] [2021-10-28 08:35:55,310 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 08:35:55,310 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:35:55,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:35:55,311 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:35:55,325 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-10-28 08:35:55,487 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-28 08:35:55,487 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:35:55,488 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-28 08:35:55,490 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:35:55,982 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-10-28 08:35:55,983 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:35:55,983 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385136075] [2021-10-28 08:35:55,983 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 08:35:55,983 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1316495280] [2021-10-28 08:35:55,983 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1316495280] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:35:55,983 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:35:55,983 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-28 08:35:55,986 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870658880] [2021-10-28 08:35:55,986 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 08:35:55,986 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:35:55,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 08:35:55,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-10-28 08:35:55,987 INFO L87 Difference]: Start difference. First operand 83 states and 92 transitions. Second operand has 8 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:35:56,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:35:56,194 INFO L93 Difference]: Finished difference Result 114 states and 127 transitions. [2021-10-28 08:35:56,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 08:35:56,198 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2021-10-28 08:35:56,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:35:56,199 INFO L225 Difference]: With dead ends: 114 [2021-10-28 08:35:56,199 INFO L226 Difference]: Without dead ends: 103 [2021-10-28 08:35:56,200 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2021-10-28 08:35:56,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2021-10-28 08:35:56,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 97. [2021-10-28 08:35:56,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 92 states have (on average 1.173913043478261) internal successors, (108), 96 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:35:56,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 108 transitions. [2021-10-28 08:35:56,213 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 108 transitions. Word has length 32 [2021-10-28 08:35:56,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:35:56,213 INFO L470 AbstractCegarLoop]: Abstraction has 97 states and 108 transitions. [2021-10-28 08:35:56,214 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:35:56,214 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 108 transitions. [2021-10-28 08:35:56,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-10-28 08:35:56,215 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:35:56,215 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:35:56,257 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-10-28 08:35:56,440 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:35:56,441 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-28 08:35:56,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:35:56,441 INFO L85 PathProgramCache]: Analyzing trace with hash -1455744328, now seen corresponding path program 1 times [2021-10-28 08:35:56,441 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:35:56,441 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504303210] [2021-10-28 08:35:56,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:35:56,442 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:35:56,455 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 08:35:56,455 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2016954616] [2021-10-28 08:35:56,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:35:56,456 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:35:56,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:35:56,457 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:35:56,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-10-28 08:35:56,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:35:56,679 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 21 conjunts are in the unsatisfiable core [2021-10-28 08:35:56,683 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:35:57,288 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:35:57,288 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:35:57,289 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504303210] [2021-10-28 08:35:57,289 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 08:35:57,289 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2016954616] [2021-10-28 08:35:57,289 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2016954616] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:35:57,289 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 08:35:57,289 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2021-10-28 08:35:57,290 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117442139] [2021-10-28 08:35:57,291 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-28 08:35:57,291 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:35:57,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-28 08:35:57,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-10-28 08:35:57,292 INFO L87 Difference]: Start difference. First operand 97 states and 108 transitions. Second operand has 9 states, 9 states have (on average 4.0) internal successors, (36), 9 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:35:57,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:35:57,608 INFO L93 Difference]: Finished difference Result 156 states and 171 transitions. [2021-10-28 08:35:57,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-28 08:35:57,608 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.0) internal successors, (36), 9 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-10-28 08:35:57,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:35:57,609 INFO L225 Difference]: With dead ends: 156 [2021-10-28 08:35:57,610 INFO L226 Difference]: Without dead ends: 104 [2021-10-28 08:35:57,610 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2021-10-28 08:35:57,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2021-10-28 08:35:57,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 88. [2021-10-28 08:35:57,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 83 states have (on average 1.1927710843373494) internal successors, (99), 87 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:35:57,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 99 transitions. [2021-10-28 08:35:57,631 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 99 transitions. Word has length 36 [2021-10-28 08:35:57,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:35:57,631 INFO L470 AbstractCegarLoop]: Abstraction has 88 states and 99 transitions. [2021-10-28 08:35:57,631 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.0) internal successors, (36), 9 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:35:57,631 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 99 transitions. [2021-10-28 08:35:57,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-10-28 08:35:57,636 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:35:57,637 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:35:57,676 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-10-28 08:35:57,853 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-10-28 08:35:57,853 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-28 08:35:57,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:35:57,853 INFO L85 PathProgramCache]: Analyzing trace with hash -1277177884, now seen corresponding path program 3 times [2021-10-28 08:35:57,854 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:35:57,854 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826881698] [2021-10-28 08:35:57,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:35:57,854 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:35:57,876 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 08:35:57,886 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1611621508] [2021-10-28 08:35:57,886 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-28 08:35:57,887 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:35:57,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:35:57,888 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:35:57,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-10-28 08:35:58,146 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-10-28 08:35:58,146 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:35:58,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-28 08:35:58,149 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:35:58,485 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 21 proven. 1 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-10-28 08:35:58,486 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:35:58,486 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826881698] [2021-10-28 08:35:58,486 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 08:35:58,486 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1611621508] [2021-10-28 08:35:58,486 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1611621508] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:35:58,486 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 08:35:58,486 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2021-10-28 08:35:58,487 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480304359] [2021-10-28 08:35:58,488 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 08:35:58,488 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:35:58,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 08:35:58,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-28 08:35:58,489 INFO L87 Difference]: Start difference. First operand 88 states and 99 transitions. Second operand has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:36:06,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:36:06,584 INFO L93 Difference]: Finished difference Result 98 states and 106 transitions. [2021-10-28 08:36:06,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 08:36:06,584 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-10-28 08:36:06,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:36:06,585 INFO L225 Difference]: With dead ends: 98 [2021-10-28 08:36:06,585 INFO L226 Difference]: Without dead ends: 88 [2021-10-28 08:36:06,586 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-28 08:36:06,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2021-10-28 08:36:06,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 86. [2021-10-28 08:36:06,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 82 states have (on average 1.146341463414634) internal successors, (94), 85 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:36:06,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 94 transitions. [2021-10-28 08:36:06,596 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 94 transitions. Word has length 36 [2021-10-28 08:36:06,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:36:06,596 INFO L470 AbstractCegarLoop]: Abstraction has 86 states and 94 transitions. [2021-10-28 08:36:06,597 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:36:06,597 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 94 transitions. [2021-10-28 08:36:06,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-10-28 08:36:06,598 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:36:06,598 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:36:06,633 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-10-28 08:36:06,812 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-10-28 08:36:06,813 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-28 08:36:06,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:36:06,813 INFO L85 PathProgramCache]: Analyzing trace with hash -642892963, now seen corresponding path program 2 times [2021-10-28 08:36:06,813 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:36:06,813 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205487004] [2021-10-28 08:36:06,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:36:06,814 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:36:06,825 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 08:36:06,826 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [924800849] [2021-10-28 08:36:06,826 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 08:36:06,826 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:36:06,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:36:06,827 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:36:06,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-10-28 08:36:07,155 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 08:36:07,156 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:36:07,157 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 39 conjunts are in the unsatisfiable core [2021-10-28 08:36:07,159 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:36:08,193 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:36:08,193 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:36:08,194 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205487004] [2021-10-28 08:36:08,194 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 08:36:08,194 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [924800849] [2021-10-28 08:36:08,194 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [924800849] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:36:08,194 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 08:36:08,194 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2021-10-28 08:36:08,195 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095120755] [2021-10-28 08:36:08,195 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-28 08:36:08,195 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:36:08,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-28 08:36:08,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-10-28 08:36:08,197 INFO L87 Difference]: Start difference. First operand 86 states and 94 transitions. Second operand has 12 states, 12 states have (on average 3.1666666666666665) internal successors, (38), 12 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:36:09,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:36:09,082 INFO L93 Difference]: Finished difference Result 98 states and 105 transitions. [2021-10-28 08:36:09,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-28 08:36:09,082 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.1666666666666665) internal successors, (38), 12 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2021-10-28 08:36:09,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:36:09,084 INFO L225 Difference]: With dead ends: 98 [2021-10-28 08:36:09,084 INFO L226 Difference]: Without dead ends: 96 [2021-10-28 08:36:09,085 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=118, Invalid=388, Unknown=0, NotChecked=0, Total=506 [2021-10-28 08:36:09,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2021-10-28 08:36:09,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 88. [2021-10-28 08:36:09,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 84 states have (on average 1.130952380952381) internal successors, (95), 87 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:36:09,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 95 transitions. [2021-10-28 08:36:09,096 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 95 transitions. Word has length 38 [2021-10-28 08:36:09,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:36:09,097 INFO L470 AbstractCegarLoop]: Abstraction has 88 states and 95 transitions. [2021-10-28 08:36:09,097 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.1666666666666665) internal successors, (38), 12 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:36:09,097 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 95 transitions. [2021-10-28 08:36:09,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-10-28 08:36:09,098 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:36:09,098 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:36:09,140 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-10-28 08:36:09,324 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-10-28 08:36:09,325 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-28 08:36:09,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:36:09,325 INFO L85 PathProgramCache]: Analyzing trace with hash -1707275894, now seen corresponding path program 3 times [2021-10-28 08:36:09,325 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:36:09,325 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138287020] [2021-10-28 08:36:09,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:36:09,326 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:36:09,342 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 08:36:09,347 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2014075440] [2021-10-28 08:36:09,348 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-28 08:36:09,348 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:36:09,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:36:09,349 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:36:09,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-10-28 08:36:09,776 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-10-28 08:36:09,776 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:36:09,778 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 54 conjunts are in the unsatisfiable core [2021-10-28 08:36:09,780 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:36:11,345 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:36:11,345 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:36:11,345 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138287020] [2021-10-28 08:36:11,346 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 08:36:11,346 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2014075440] [2021-10-28 08:36:11,346 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2014075440] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:36:11,346 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 08:36:11,346 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2021-10-28 08:36:11,346 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350741995] [2021-10-28 08:36:11,347 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-10-28 08:36:11,347 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:36:11,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-10-28 08:36:11,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2021-10-28 08:36:11,348 INFO L87 Difference]: Start difference. First operand 88 states and 95 transitions. Second operand has 16 states, 16 states have (on average 2.75) internal successors, (44), 16 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:36:12,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:36:12,605 INFO L93 Difference]: Finished difference Result 100 states and 104 transitions. [2021-10-28 08:36:12,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-28 08:36:12,606 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.75) internal successors, (44), 16 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2021-10-28 08:36:12,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:36:12,607 INFO L225 Difference]: With dead ends: 100 [2021-10-28 08:36:12,607 INFO L226 Difference]: Without dead ends: 89 [2021-10-28 08:36:12,607 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=198, Invalid=672, Unknown=0, NotChecked=0, Total=870 [2021-10-28 08:36:12,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2021-10-28 08:36:12,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 86. [2021-10-28 08:36:12,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 82 states have (on average 1.1097560975609757) internal successors, (91), 85 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:36:12,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 91 transitions. [2021-10-28 08:36:12,617 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 91 transitions. Word has length 44 [2021-10-28 08:36:12,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:36:12,617 INFO L470 AbstractCegarLoop]: Abstraction has 86 states and 91 transitions. [2021-10-28 08:36:12,618 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.75) internal successors, (44), 16 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:36:12,618 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 91 transitions. [2021-10-28 08:36:12,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-10-28 08:36:12,619 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:36:12,619 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:36:12,655 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2021-10-28 08:36:12,836 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-10-28 08:36:12,837 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-28 08:36:12,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:36:12,837 INFO L85 PathProgramCache]: Analyzing trace with hash 1027491960, now seen corresponding path program 4 times [2021-10-28 08:36:12,837 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:36:12,837 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063206122] [2021-10-28 08:36:12,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:36:12,838 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:36:12,850 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 08:36:12,850 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [725697182] [2021-10-28 08:36:12,850 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-28 08:36:12,850 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:36:12,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:36:12,852 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:36:12,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-10-28 08:36:13,289 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-28 08:36:13,290 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:36:13,291 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 34 conjunts are in the unsatisfiable core [2021-10-28 08:36:13,293 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:36:14,340 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:36:14,341 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:36:14,341 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063206122] [2021-10-28 08:36:14,341 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 08:36:14,341 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [725697182] [2021-10-28 08:36:14,341 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [725697182] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:36:14,341 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 08:36:14,341 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2021-10-28 08:36:14,341 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276454004] [2021-10-28 08:36:14,342 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 08:36:14,342 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:36:14,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 08:36:14,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-10-28 08:36:14,343 INFO L87 Difference]: Start difference. First operand 86 states and 91 transitions. Second operand has 10 states, 10 states have (on average 4.5) internal successors, (45), 10 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:36:15,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:36:15,081 INFO L93 Difference]: Finished difference Result 125 states and 134 transitions. [2021-10-28 08:36:15,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-28 08:36:15,082 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.5) internal successors, (45), 10 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2021-10-28 08:36:15,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:36:15,083 INFO L225 Difference]: With dead ends: 125 [2021-10-28 08:36:15,083 INFO L226 Difference]: Without dead ends: 123 [2021-10-28 08:36:15,083 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2021-10-28 08:36:15,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2021-10-28 08:36:15,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 110. [2021-10-28 08:36:15,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 106 states have (on average 1.1320754716981132) internal successors, (120), 109 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:36:15,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 120 transitions. [2021-10-28 08:36:15,108 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 120 transitions. Word has length 45 [2021-10-28 08:36:15,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:36:15,108 INFO L470 AbstractCegarLoop]: Abstraction has 110 states and 120 transitions. [2021-10-28 08:36:15,109 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.5) internal successors, (45), 10 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:36:15,109 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 120 transitions. [2021-10-28 08:36:15,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-10-28 08:36:15,110 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:36:15,110 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:36:15,138 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2021-10-28 08:36:15,320 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-10-28 08:36:15,321 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-28 08:36:15,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:36:15,321 INFO L85 PathProgramCache]: Analyzing trace with hash -1554139002, now seen corresponding path program 2 times [2021-10-28 08:36:15,321 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:36:15,321 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865318718] [2021-10-28 08:36:15,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:36:15,322 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:36:15,332 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 08:36:15,332 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [527961904] [2021-10-28 08:36:15,332 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 08:36:15,332 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:36:15,333 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:36:15,333 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:36:15,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-10-28 08:36:15,740 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-28 08:36:15,740 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:36:15,741 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-28 08:36:15,743 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:36:38,586 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-10-28 08:36:38,586 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:36:38,586 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865318718] [2021-10-28 08:36:38,586 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 08:36:38,586 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [527961904] [2021-10-28 08:36:38,586 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [527961904] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:36:38,587 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:36:38,587 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-28 08:36:38,587 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914773539] [2021-10-28 08:36:38,587 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 08:36:38,587 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:36:38,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 08:36:38,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=40, Unknown=3, NotChecked=0, Total=56 [2021-10-28 08:36:38,588 INFO L87 Difference]: Start difference. First operand 110 states and 120 transitions. Second operand has 8 states, 8 states have (on average 3.75) internal successors, (30), 8 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:36:53,159 WARN L207 SmtUtils]: Spent 14.54 s on a formula simplification. DAG size of input: 44 DAG size of output: 34 [2021-10-28 08:37:07,651 WARN L207 SmtUtils]: Spent 14.47 s on a formula simplification. DAG size of input: 34 DAG size of output: 30 [2021-10-28 08:37:22,323 WARN L207 SmtUtils]: Spent 14.46 s on a formula simplification. DAG size of input: 41 DAG size of output: 32 [2021-10-28 08:37:36,523 WARN L207 SmtUtils]: Spent 14.14 s on a formula simplification. DAG size of input: 31 DAG size of output: 26 [2021-10-28 08:37:57,333 WARN L207 SmtUtils]: Spent 20.65 s on a formula simplification. DAG size of input: 46 DAG size of output: 29 [2021-10-28 08:38:34,511 WARN L207 SmtUtils]: Spent 14.29 s on a formula simplification. DAG size of input: 39 DAG size of output: 34 [2021-10-28 08:38:51,186 WARN L207 SmtUtils]: Spent 16.62 s on a formula simplification. DAG size of input: 49 DAG size of output: 33 [2021-10-28 08:39:05,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:39:05,279 INFO L93 Difference]: Finished difference Result 114 states and 124 transitions. [2021-10-28 08:39:05,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-28 08:39:05,279 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.75) internal successors, (30), 8 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2021-10-28 08:39:05,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:39:05,281 INFO L225 Difference]: With dead ends: 114 [2021-10-28 08:39:05,281 INFO L226 Difference]: Without dead ends: 91 [2021-10-28 08:39:05,281 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 131.7s TimeCoverageRelationStatistics Valid=75, Invalid=155, Unknown=10, NotChecked=0, Total=240 [2021-10-28 08:39:05,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2021-10-28 08:39:05,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 79. [2021-10-28 08:39:05,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 76 states have (on average 1.0921052631578947) internal successors, (83), 78 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:39:05,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 83 transitions. [2021-10-28 08:39:05,294 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 83 transitions. Word has length 49 [2021-10-28 08:39:05,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:39:05,295 INFO L470 AbstractCegarLoop]: Abstraction has 79 states and 83 transitions. [2021-10-28 08:39:05,295 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.75) internal successors, (30), 8 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:39:05,295 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 83 transitions. [2021-10-28 08:39:05,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-10-28 08:39:05,296 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:39:05,296 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:39:05,324 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2021-10-28 08:39:05,504 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:39:05,505 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-28 08:39:05,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:39:05,505 INFO L85 PathProgramCache]: Analyzing trace with hash 1461163621, now seen corresponding path program 5 times [2021-10-28 08:39:05,505 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:39:05,505 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276408069] [2021-10-28 08:39:05,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:39:05,506 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:39:05,523 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 08:39:05,523 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [821104457] [2021-10-28 08:39:05,523 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-28 08:39:05,524 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:39:05,524 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:39:05,533 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:39:05,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-10-28 08:39:06,133 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-10-28 08:39:06,133 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:39:06,135 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 57 conjunts are in the unsatisfiable core [2021-10-28 08:39:06,137 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:39:07,918 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:39:07,918 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:39:07,918 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276408069] [2021-10-28 08:39:07,919 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 08:39:07,919 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [821104457] [2021-10-28 08:39:07,919 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [821104457] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:39:07,919 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 08:39:07,919 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2021-10-28 08:39:07,920 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786750025] [2021-10-28 08:39:07,921 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-10-28 08:39:07,921 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:39:07,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-10-28 08:39:07,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2021-10-28 08:39:07,923 INFO L87 Difference]: Start difference. First operand 79 states and 83 transitions. Second operand has 16 states, 16 states have (on average 3.1875) internal successors, (51), 16 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:39:08,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:39:08,872 INFO L93 Difference]: Finished difference Result 118 states and 126 transitions. [2021-10-28 08:39:08,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-28 08:39:08,873 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.1875) internal successors, (51), 16 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2021-10-28 08:39:08,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:39:08,874 INFO L225 Difference]: With dead ends: 118 [2021-10-28 08:39:08,874 INFO L226 Difference]: Without dead ends: 108 [2021-10-28 08:39:08,875 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=109, Invalid=541, Unknown=0, NotChecked=0, Total=650 [2021-10-28 08:39:08,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2021-10-28 08:39:08,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 88. [2021-10-28 08:39:08,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 85 states have (on average 1.0941176470588236) internal successors, (93), 87 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:39:08,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 93 transitions. [2021-10-28 08:39:08,890 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 93 transitions. Word has length 51 [2021-10-28 08:39:08,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:39:08,891 INFO L470 AbstractCegarLoop]: Abstraction has 88 states and 93 transitions. [2021-10-28 08:39:08,891 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.1875) internal successors, (51), 16 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:39:08,891 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 93 transitions. [2021-10-28 08:39:08,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-10-28 08:39:08,892 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:39:08,892 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:39:08,924 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-10-28 08:39:09,112 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-10-28 08:39:09,113 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-28 08:39:09,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:39:09,113 INFO L85 PathProgramCache]: Analyzing trace with hash 464869117, now seen corresponding path program 6 times [2021-10-28 08:39:09,114 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:39:09,114 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203198917] [2021-10-28 08:39:09,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:39:09,114 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:39:09,128 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 08:39:09,128 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1703506631] [2021-10-28 08:39:09,128 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-28 08:39:09,128 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:39:09,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:39:09,130 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:39:09,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-10-28 08:39:09,775 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2021-10-28 08:39:09,775 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:39:09,777 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 30 conjunts are in the unsatisfiable core [2021-10-28 08:39:09,778 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:39:28,975 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 21 proven. 30 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-10-28 08:39:28,975 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:39:28,977 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203198917] [2021-10-28 08:39:28,977 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 08:39:28,977 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1703506631] [2021-10-28 08:39:28,977 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1703506631] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:39:28,977 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 08:39:28,978 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2021-10-28 08:39:28,978 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798445953] [2021-10-28 08:39:28,978 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-28 08:39:28,978 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:39:28,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-28 08:39:28,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-10-28 08:39:28,980 INFO L87 Difference]: Start difference. First operand 88 states and 93 transitions. Second operand has 11 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 11 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:39:43,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:39:43,910 INFO L93 Difference]: Finished difference Result 104 states and 109 transitions. [2021-10-28 08:39:43,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-28 08:39:43,911 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 11 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2021-10-28 08:39:43,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:39:43,911 INFO L225 Difference]: With dead ends: 104 [2021-10-28 08:39:43,912 INFO L226 Difference]: Without dead ends: 102 [2021-10-28 08:39:43,912 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 18.2s TimeCoverageRelationStatistics Valid=67, Invalid=203, Unknown=2, NotChecked=0, Total=272 [2021-10-28 08:39:43,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2021-10-28 08:39:43,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 88. [2021-10-28 08:39:43,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 85 states have (on average 1.0823529411764705) internal successors, (92), 87 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:39:43,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 92 transitions. [2021-10-28 08:39:43,934 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 92 transitions. Word has length 52 [2021-10-28 08:39:43,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:39:43,934 INFO L470 AbstractCegarLoop]: Abstraction has 88 states and 92 transitions. [2021-10-28 08:39:43,935 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 11 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:39:43,935 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 92 transitions. [2021-10-28 08:39:43,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-28 08:39:43,935 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:39:43,936 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:39:43,966 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-10-28 08:39:44,160 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-10-28 08:39:44,161 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-28 08:39:44,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:39:44,161 INFO L85 PathProgramCache]: Analyzing trace with hash -275908280, now seen corresponding path program 1 times [2021-10-28 08:39:44,161 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:39:44,161 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033298462] [2021-10-28 08:39:44,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:39:44,161 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:39:44,171 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 08:39:44,171 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2036462032] [2021-10-28 08:39:44,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:39:44,171 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:39:44,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:39:44,176 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:39:44,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-10-28 08:39:44,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:39:44,780 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 38 conjunts are in the unsatisfiable core [2021-10-28 08:39:44,782 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:39:46,048 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:39:46,048 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:39:46,049 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033298462] [2021-10-28 08:39:46,049 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 08:39:46,049 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2036462032] [2021-10-28 08:39:46,049 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2036462032] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:39:46,049 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 08:39:46,050 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2021-10-28 08:39:46,050 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633994657] [2021-10-28 08:39:46,052 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-28 08:39:46,052 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:39:46,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-28 08:39:46,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2021-10-28 08:39:46,053 INFO L87 Difference]: Start difference. First operand 88 states and 92 transitions. Second operand has 14 states, 14 states have (on average 3.7857142857142856) internal successors, (53), 14 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:39:47,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:39:47,151 INFO L93 Difference]: Finished difference Result 126 states and 136 transitions. [2021-10-28 08:39:47,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-10-28 08:39:47,152 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.7857142857142856) internal successors, (53), 14 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-10-28 08:39:47,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:39:47,153 INFO L225 Difference]: With dead ends: 126 [2021-10-28 08:39:47,153 INFO L226 Difference]: Without dead ends: 99 [2021-10-28 08:39:47,154 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=159, Invalid=897, Unknown=0, NotChecked=0, Total=1056 [2021-10-28 08:39:47,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2021-10-28 08:39:47,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 91. [2021-10-28 08:39:47,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 88 states have (on average 1.0795454545454546) internal successors, (95), 90 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:39:47,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 95 transitions. [2021-10-28 08:39:47,172 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 95 transitions. Word has length 53 [2021-10-28 08:39:47,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:39:47,173 INFO L470 AbstractCegarLoop]: Abstraction has 91 states and 95 transitions. [2021-10-28 08:39:47,173 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.7857142857142856) internal successors, (53), 14 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:39:47,173 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 95 transitions. [2021-10-28 08:39:47,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-10-28 08:39:47,174 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:39:47,174 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:39:47,214 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-10-28 08:39:47,388 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:39:47,389 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-28 08:39:47,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:39:47,389 INFO L85 PathProgramCache]: Analyzing trace with hash 589823634, now seen corresponding path program 7 times [2021-10-28 08:39:47,389 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:39:47,389 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980506505] [2021-10-28 08:39:47,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:39:47,389 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:39:47,400 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 08:39:47,401 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1474313341] [2021-10-28 08:39:47,401 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-28 08:39:47,401 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:39:47,401 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:39:47,404 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:39:47,409 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-10-28 08:39:48,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:39:48,065 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 60 conjunts are in the unsatisfiable core [2021-10-28 08:39:48,066 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:39:50,134 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:39:50,134 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:39:50,134 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980506505] [2021-10-28 08:39:50,134 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 08:39:50,134 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1474313341] [2021-10-28 08:39:50,134 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1474313341] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:39:50,135 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 08:39:50,135 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2021-10-28 08:39:50,135 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487269693] [2021-10-28 08:39:50,135 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-28 08:39:50,135 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:39:50,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-28 08:39:50,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2021-10-28 08:39:50,136 INFO L87 Difference]: Start difference. First operand 91 states and 95 transitions. Second operand has 17 states, 17 states have (on average 3.3529411764705883) internal successors, (57), 17 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:39:51,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:39:51,200 INFO L93 Difference]: Finished difference Result 102 states and 105 transitions. [2021-10-28 08:39:51,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-28 08:39:51,201 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.3529411764705883) internal successors, (57), 17 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2021-10-28 08:39:51,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:39:51,202 INFO L225 Difference]: With dead ends: 102 [2021-10-28 08:39:51,202 INFO L226 Difference]: Without dead ends: 92 [2021-10-28 08:39:51,203 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=120, Invalid=692, Unknown=0, NotChecked=0, Total=812 [2021-10-28 08:39:51,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2021-10-28 08:39:51,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 91. [2021-10-28 08:39:51,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 88 states have (on average 1.0681818181818181) internal successors, (94), 90 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:39:51,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 94 transitions. [2021-10-28 08:39:51,218 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 94 transitions. Word has length 57 [2021-10-28 08:39:51,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:39:51,218 INFO L470 AbstractCegarLoop]: Abstraction has 91 states and 94 transitions. [2021-10-28 08:39:51,219 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.3529411764705883) internal successors, (57), 17 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:39:51,219 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 94 transitions. [2021-10-28 08:39:51,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-10-28 08:39:51,220 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:39:51,220 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:39:51,273 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2021-10-28 08:39:51,444 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:39:51,445 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-28 08:39:51,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:39:51,445 INFO L85 PathProgramCache]: Analyzing trace with hash 196796624, now seen corresponding path program 1 times [2021-10-28 08:39:51,445 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:39:51,445 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082570557] [2021-10-28 08:39:51,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:39:51,445 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:39:51,459 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 08:39:51,460 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2044188101] [2021-10-28 08:39:51,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:39:51,460 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:39:51,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:39:51,461 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:39:51,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-10-28 08:39:52,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:39:52,221 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 56 conjunts are in the unsatisfiable core [2021-10-28 08:39:52,223 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:39:53,972 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:39:53,973 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:39:53,973 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082570557] [2021-10-28 08:39:53,973 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 08:39:53,973 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2044188101] [2021-10-28 08:39:53,973 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2044188101] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:39:53,974 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 08:39:53,974 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2021-10-28 08:39:53,974 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027467862] [2021-10-28 08:39:53,975 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-10-28 08:39:53,975 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:39:53,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-10-28 08:39:53,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2021-10-28 08:39:53,977 INFO L87 Difference]: Start difference. First operand 91 states and 94 transitions. Second operand has 16 states, 16 states have (on average 3.5625) internal successors, (57), 16 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:39:54,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:39:54,975 INFO L93 Difference]: Finished difference Result 94 states and 96 transitions. [2021-10-28 08:39:54,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-28 08:39:54,976 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.5625) internal successors, (57), 16 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2021-10-28 08:39:54,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:39:54,976 INFO L225 Difference]: With dead ends: 94 [2021-10-28 08:39:54,977 INFO L226 Difference]: Without dead ends: 72 [2021-10-28 08:39:54,977 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=85, Invalid=565, Unknown=0, NotChecked=0, Total=650 [2021-10-28 08:39:54,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2021-10-28 08:39:54,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 71. [2021-10-28 08:39:54,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 68 states have (on average 1.0735294117647058) internal successors, (73), 70 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:39:54,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 73 transitions. [2021-10-28 08:39:54,991 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 73 transitions. Word has length 57 [2021-10-28 08:39:54,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:39:54,992 INFO L470 AbstractCegarLoop]: Abstraction has 71 states and 73 transitions. [2021-10-28 08:39:54,992 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.5625) internal successors, (57), 16 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:39:54,992 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 73 transitions. [2021-10-28 08:39:54,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-10-28 08:39:54,993 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:39:54,993 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:39:55,041 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2021-10-28 08:39:55,218 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:39:55,218 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-28 08:39:55,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:39:55,219 INFO L85 PathProgramCache]: Analyzing trace with hash 1395191082, now seen corresponding path program 8 times [2021-10-28 08:39:55,219 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:39:55,219 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016749410] [2021-10-28 08:39:55,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:39:55,220 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:39:55,251 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 08:39:55,253 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1523576119] [2021-10-28 08:39:55,253 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 08:39:55,253 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:39:55,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:39:55,255 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:39:55,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2021-10-28 08:39:56,155 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 08:39:56,155 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:39:56,157 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 23 conjunts are in the unsatisfiable core [2021-10-28 08:39:56,159 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:39:57,836 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 74 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:39:57,836 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:39:57,837 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016749410] [2021-10-28 08:39:57,837 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 08:39:57,837 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1523576119] [2021-10-28 08:39:57,837 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1523576119] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:39:57,837 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 08:39:57,838 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2021-10-28 08:39:57,838 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398898969] [2021-10-28 08:39:57,838 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-28 08:39:57,838 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:39:57,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-28 08:39:57,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2021-10-28 08:39:57,840 INFO L87 Difference]: Start difference. First operand 71 states and 73 transitions. Second operand has 14 states, 14 states have (on average 4.142857142857143) internal successors, (58), 14 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:39:59,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:39:59,183 INFO L93 Difference]: Finished difference Result 163 states and 170 transitions. [2021-10-28 08:39:59,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-28 08:39:59,184 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.142857142857143) internal successors, (58), 14 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-10-28 08:39:59,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:39:59,185 INFO L225 Difference]: With dead ends: 163 [2021-10-28 08:39:59,185 INFO L226 Difference]: Without dead ends: 128 [2021-10-28 08:39:59,186 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=179, Invalid=373, Unknown=0, NotChecked=0, Total=552 [2021-10-28 08:39:59,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2021-10-28 08:39:59,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 73. [2021-10-28 08:39:59,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 70 states have (on average 1.0714285714285714) internal successors, (75), 72 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:39:59,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 75 transitions. [2021-10-28 08:39:59,201 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 75 transitions. Word has length 58 [2021-10-28 08:39:59,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:39:59,202 INFO L470 AbstractCegarLoop]: Abstraction has 73 states and 75 transitions. [2021-10-28 08:39:59,202 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.142857142857143) internal successors, (58), 14 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:39:59,202 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 75 transitions. [2021-10-28 08:39:59,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-10-28 08:39:59,203 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:39:59,203 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:39:59,249 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2021-10-28 08:39:59,408 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2021-10-28 08:39:59,409 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-28 08:39:59,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:39:59,409 INFO L85 PathProgramCache]: Analyzing trace with hash 251811542, now seen corresponding path program 1 times [2021-10-28 08:39:59,409 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:39:59,409 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184118935] [2021-10-28 08:39:59,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:39:59,410 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:39:59,453 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 08:39:59,454 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1816107971] [2021-10-28 08:39:59,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:39:59,454 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:39:59,454 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:39:59,455 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:39:59,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2021-10-28 08:40:00,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:40:00,395 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-28 08:40:00,396 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:40:00,860 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 70 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:40:00,861 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:40:00,861 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184118935] [2021-10-28 08:40:00,861 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 08:40:00,861 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1816107971] [2021-10-28 08:40:00,861 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1816107971] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:40:00,861 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 08:40:00,862 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2021-10-28 08:40:00,862 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104916879] [2021-10-28 08:40:00,862 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 08:40:00,863 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:40:00,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 08:40:00,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-10-28 08:40:00,864 INFO L87 Difference]: Start difference. First operand 73 states and 75 transitions. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:40:00,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:40:00,949 INFO L93 Difference]: Finished difference Result 98 states and 102 transitions. [2021-10-28 08:40:00,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 08:40:00,950 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2021-10-28 08:40:00,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:40:00,951 INFO L225 Difference]: With dead ends: 98 [2021-10-28 08:40:00,951 INFO L226 Difference]: Without dead ends: 92 [2021-10-28 08:40:00,952 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 52 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-10-28 08:40:00,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2021-10-28 08:40:00,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 86. [2021-10-28 08:40:00,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 83 states have (on average 1.0963855421686748) internal successors, (91), 85 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:40:00,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 91 transitions. [2021-10-28 08:40:00,969 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 91 transitions. Word has length 59 [2021-10-28 08:40:00,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:40:00,970 INFO L470 AbstractCegarLoop]: Abstraction has 86 states and 91 transitions. [2021-10-28 08:40:00,970 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:40:00,971 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 91 transitions. [2021-10-28 08:40:00,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-10-28 08:40:00,971 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:40:00,971 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:40:01,044 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:01,187 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2021-10-28 08:40:01,188 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-28 08:40:01,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:01,188 INFO L85 PathProgramCache]: Analyzing trace with hash 806249483, now seen corresponding path program 1 times [2021-10-28 08:40:01,188 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:40:01,188 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803672198] [2021-10-28 08:40:01,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:40:01,188 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:40:01,206 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 08:40:01,207 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [472452976] [2021-10-28 08:40:01,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:40:01,207 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:40:01,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:01,208 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:40:01,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2021-10-28 08:40:02,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:40:02,102 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 42 conjunts are in the unsatisfiable core [2021-10-28 08:40:02,104 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:40:03,724 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:40:03,725 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:40:03,725 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803672198] [2021-10-28 08:40:03,725 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 08:40:03,726 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [472452976] [2021-10-28 08:40:03,726 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [472452976] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:40:03,726 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 08:40:03,726 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2021-10-28 08:40:03,727 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513013638] [2021-10-28 08:40:03,727 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-28 08:40:03,727 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:40:03,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-28 08:40:03,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2021-10-28 08:40:03,729 INFO L87 Difference]: Start difference. First operand 86 states and 91 transitions. Second operand has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:40:05,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:40:05,114 INFO L93 Difference]: Finished difference Result 102 states and 109 transitions. [2021-10-28 08:40:05,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-28 08:40:05,115 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-10-28 08:40:05,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:40:05,116 INFO L225 Difference]: With dead ends: 102 [2021-10-28 08:40:05,116 INFO L226 Difference]: Without dead ends: 75 [2021-10-28 08:40:05,117 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=138, Invalid=854, Unknown=0, NotChecked=0, Total=992 [2021-10-28 08:40:05,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2021-10-28 08:40:05,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 73. [2021-10-28 08:40:05,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 72 states have (on average 1.0277777777777777) internal successors, (74), 72 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:40:05,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 74 transitions. [2021-10-28 08:40:05,132 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 74 transitions. Word has length 60 [2021-10-28 08:40:05,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:40:05,132 INFO L470 AbstractCegarLoop]: Abstraction has 73 states and 74 transitions. [2021-10-28 08:40:05,133 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:40:05,133 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 74 transitions. [2021-10-28 08:40:05,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-10-28 08:40:05,134 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:40:05,134 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:40:05,171 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2021-10-28 08:40:05,350 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:40:05,350 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-28 08:40:05,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:05,351 INFO L85 PathProgramCache]: Analyzing trace with hash 69160917, now seen corresponding path program 2 times [2021-10-28 08:40:05,351 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:40:05,351 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659478729] [2021-10-28 08:40:05,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:40:05,351 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:40:05,366 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 08:40:05,366 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1053404509] [2021-10-28 08:40:05,367 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 08:40:05,367 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:40:05,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:05,369 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:40:05,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2021-10-28 08:40:06,453 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 08:40:06,453 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:40:06,456 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 70 conjunts are in the unsatisfiable core [2021-10-28 08:40:06,457 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:40:09,054 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 94 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:40:09,054 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:40:09,054 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659478729] [2021-10-28 08:40:09,054 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 08:40:09,055 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1053404509] [2021-10-28 08:40:09,055 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1053404509] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:40:09,055 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 08:40:09,055 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2021-10-28 08:40:09,055 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572660294] [2021-10-28 08:40:09,056 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-28 08:40:09,056 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:40:09,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-28 08:40:09,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=276, Unknown=0, NotChecked=0, Total=342 [2021-10-28 08:40:09,057 INFO L87 Difference]: Start difference. First operand 73 states and 74 transitions. Second operand has 19 states, 19 states have (on average 3.3684210526315788) internal successors, (64), 19 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:40:10,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:40:10,910 INFO L93 Difference]: Finished difference Result 80 states and 80 transitions. [2021-10-28 08:40:10,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-28 08:40:10,911 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.3684210526315788) internal successors, (64), 19 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2021-10-28 08:40:10,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:40:10,912 INFO L225 Difference]: With dead ends: 80 [2021-10-28 08:40:10,912 INFO L226 Difference]: Without dead ends: 78 [2021-10-28 08:40:10,913 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 45 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=232, Invalid=958, Unknown=0, NotChecked=0, Total=1190 [2021-10-28 08:40:10,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2021-10-28 08:40:10,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 71. [2021-10-28 08:40:10,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 70 states have (on average 1.0142857142857142) internal successors, (71), 70 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:40:10,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 71 transitions. [2021-10-28 08:40:10,929 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 71 transitions. Word has length 64 [2021-10-28 08:40:10,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:40:10,929 INFO L470 AbstractCegarLoop]: Abstraction has 71 states and 71 transitions. [2021-10-28 08:40:10,929 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.3684210526315788) internal successors, (64), 19 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:40:10,930 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 71 transitions. [2021-10-28 08:40:10,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-10-28 08:40:10,931 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:40:10,931 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:40:10,962 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:11,140 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2021-10-28 08:40:11,141 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-28 08:40:11,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:11,141 INFO L85 PathProgramCache]: Analyzing trace with hash 880468994, now seen corresponding path program 3 times [2021-10-28 08:40:11,141 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:40:11,141 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136040532] [2021-10-28 08:40:11,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:40:11,141 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:40:11,155 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 08:40:11,155 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1383140022] [2021-10-28 08:40:11,155 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-28 08:40:11,155 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:40:11,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:11,157 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:40:11,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2021-10-28 08:40:12,674 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-10-28 08:40:12,674 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:40:12,676 INFO L263 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 84 conjunts are in the unsatisfiable core [2021-10-28 08:40:12,678 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:40:16,629 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 8 proven. 106 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:40:16,629 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:40:16,629 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136040532] [2021-10-28 08:40:16,629 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 08:40:16,629 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1383140022] [2021-10-28 08:40:16,629 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1383140022] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:40:16,629 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 08:40:16,629 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2021-10-28 08:40:16,630 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257099665] [2021-10-28 08:40:16,630 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-10-28 08:40:16,630 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:40:16,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-10-28 08:40:16,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=379, Unknown=0, NotChecked=0, Total=462 [2021-10-28 08:40:16,632 INFO L87 Difference]: Start difference. First operand 71 states and 71 transitions. Second operand has 22 states, 22 states have (on average 3.1818181818181817) internal successors, (70), 22 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:40:19,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:40:19,638 INFO L93 Difference]: Finished difference Result 81 states and 80 transitions. [2021-10-28 08:40:19,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-28 08:40:19,639 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 3.1818181818181817) internal successors, (70), 22 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2021-10-28 08:40:19,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:40:19,639 INFO L225 Difference]: With dead ends: 81 [2021-10-28 08:40:19,639 INFO L226 Difference]: Without dead ends: 71 [2021-10-28 08:40:19,640 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 226 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=242, Invalid=1240, Unknown=0, NotChecked=0, Total=1482 [2021-10-28 08:40:19,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2021-10-28 08:40:19,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2021-10-28 08:40:19,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 70 states have (on average 1.0) internal successors, (70), 70 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:40:19,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 70 transitions. [2021-10-28 08:40:19,651 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 70 transitions. Word has length 70 [2021-10-28 08:40:19,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:40:19,651 INFO L470 AbstractCegarLoop]: Abstraction has 71 states and 70 transitions. [2021-10-28 08:40:19,652 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 3.1818181818181817) internal successors, (70), 22 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:40:19,652 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 70 transitions. [2021-10-28 08:40:19,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-10-28 08:40:19,652 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:40:19,653 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:40:19,680 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:19,853 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2021-10-28 08:40:19,853 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-28 08:40:19,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:19,854 INFO L85 PathProgramCache]: Analyzing trace with hash 487441984, now seen corresponding path program 4 times [2021-10-28 08:40:19,854 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:40:19,854 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326996253] [2021-10-28 08:40:19,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:40:19,854 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:40:19,871 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 08:40:19,872 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [278975421] [2021-10-28 08:40:19,872 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-28 08:40:19,872 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:40:19,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:19,873 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:40:19,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2021-10-28 08:40:21,145 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-28 08:40:21,145 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:40:21,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 65 conjunts are in the unsatisfiable core [2021-10-28 08:40:21,149 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:40:24,111 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 114 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:40:24,111 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:40:24,111 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326996253] [2021-10-28 08:40:24,111 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 08:40:24,111 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [278975421] [2021-10-28 08:40:24,111 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [278975421] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:40:24,111 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 08:40:24,111 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2021-10-28 08:40:24,112 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408716848] [2021-10-28 08:40:24,112 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-10-28 08:40:24,112 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:40:24,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-10-28 08:40:24,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2021-10-28 08:40:24,113 INFO L87 Difference]: Start difference. First operand 71 states and 70 transitions. Second operand has 18 states, 18 states have (on average 3.888888888888889) internal successors, (70), 18 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:40:25,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:40:25,377 INFO L93 Difference]: Finished difference Result 71 states and 70 transitions. [2021-10-28 08:40:25,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-28 08:40:25,378 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.888888888888889) internal successors, (70), 18 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2021-10-28 08:40:25,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:40:25,378 INFO L225 Difference]: With dead ends: 71 [2021-10-28 08:40:25,378 INFO L226 Difference]: Without dead ends: 0 [2021-10-28 08:40:25,379 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 52 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=124, Invalid=868, Unknown=0, NotChecked=0, Total=992 [2021-10-28 08:40:25,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-28 08:40:25,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-28 08:40:25,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:40:25,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-28 08:40:25,380 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 70 [2021-10-28 08:40:25,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:40:25,380 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 08:40:25,380 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.888888888888889) internal successors, (70), 18 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:40:25,380 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-28 08:40:25,381 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-28 08:40:25,383 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 08:40:25,383 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 08:40:25,384 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 08:40:25,384 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 08:40:25,384 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 08:40:25,384 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 08:40:25,384 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 08:40:25,414 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:25,585 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2021-10-28 08:40:25,586 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-28 08:40:25,590 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:40:25,676 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:40:25,897 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:40:25,898 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:40:26,133 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:40:26,169 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:40:26,170 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:40:26,206 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:40:26,241 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:40:32,455 WARN L207 SmtUtils]: Spent 5.29 s on a formula simplification. DAG size of input: 223 DAG size of output: 120 [2021-10-28 08:40:43,105 WARN L207 SmtUtils]: Spent 10.65 s on a formula simplification. DAG size of input: 255 DAG size of output: 117 [2021-10-28 08:40:53,897 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-28 08:40:53,897 INFO L857 garLoopResultBuilder]: For program point L11(lines 11 13) no Hoare annotation was computed. [2021-10-28 08:40:53,897 INFO L857 garLoopResultBuilder]: For program point L11-1(lines 11 13) no Hoare annotation was computed. [2021-10-28 08:40:53,897 INFO L857 garLoopResultBuilder]: For program point L11-2(lines 11 13) no Hoare annotation was computed. [2021-10-28 08:40:53,898 INFO L853 garLoopResultBuilder]: At program point L36-2(lines 36 44) the Hoare annotation is: (let ((.cse15 (div (* ULTIMATE.start_main_~d~0 (- 1)) (- 2))) (.cse14 (mod ULTIMATE.start_main_~A~0 4294967296)) (.cse10 (mod ULTIMATE.start_main_~B~0 4294967296))) (let ((.cse1 (* 2 .cse10)) (.cse3 (= (+ ULTIMATE.start_main_~r~0 (* ULTIMATE.start_main_~q~0 .cse10)) .cse14)) (.cse11 (<= 0 .cse15)) (.cse12 (<= .cse15 ULTIMATE.start_main_~r~0)) (.cse0 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse13 (= ULTIMATE.start_main_~d~0 (* 2 (* (div (* ULTIMATE.start_main_~p~0 (- 1)) (- 2)) .cse10)))) (.cse8 (<= .cse10 10)) (.cse2 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse4 (<= 1 .cse10)) (.cse5 (<= (div ULTIMATE.start_main_~r~0 (- 4294967296)) (div (+ (* ULTIMATE.start_main_~r~0 (- 1)) 10) 4294967296))) (.cse9 (= ULTIMATE.start_main_~q~0 0)) (.cse6 (= ULTIMATE.start_main_~r~0 .cse14)) (.cse7 (= (* .cse10 ULTIMATE.start_main_~p~0) ULTIMATE.start_main_~d~0))) (or (and .cse0 (<= .cse1 ULTIMATE.start_main_~r~0) (= ULTIMATE.start_main_~p~0 4) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7) (and .cse0 .cse8 .cse4 .cse5 .cse9 (<= 1 ULTIMATE.start_main_~p~0) .cse6 (<= ULTIMATE.start_main_~d~0 .cse10) .cse7) (and .cse11 .cse12 .cse0 .cse13 .cse8 .cse2 (= ULTIMATE.start_main_~p~0 16) .cse4 .cse5 .cse9 .cse6) (and .cse12 .cse0 (= .cse1 ULTIMATE.start_main_~d~0) .cse2 .cse3 .cse5 (< (div (div (+ ULTIMATE.start_main_~d~0 (- 2)) 2) (- 4294967296)) 1) .cse6 (= ULTIMATE.start_main_~p~0 2)) (and .cse11 .cse12 .cse0 .cse13 .cse8 .cse2 .cse4 .cse5 .cse9 .cse6 (= ULTIMATE.start_main_~d~0 (* 8 .cse10)) .cse7)))) [2021-10-28 08:40:53,898 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-28 08:40:53,898 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-28 08:40:53,898 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-28 08:40:53,899 INFO L857 garLoopResultBuilder]: For program point L12(line 12) no Hoare annotation was computed. [2021-10-28 08:40:53,899 INFO L857 garLoopResultBuilder]: For program point L12-2(line 12) no Hoare annotation was computed. [2021-10-28 08:40:53,899 INFO L857 garLoopResultBuilder]: For program point L12-4(line 12) no Hoare annotation was computed. [2021-10-28 08:40:53,899 INFO L860 garLoopResultBuilder]: At program point L62(lines 22 63) the Hoare annotation is: true [2021-10-28 08:40:53,899 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-28 08:40:53,900 INFO L857 garLoopResultBuilder]: For program point L54(lines 54 57) no Hoare annotation was computed. [2021-10-28 08:40:53,900 INFO L857 garLoopResultBuilder]: For program point L54-2(lines 22 63) no Hoare annotation was computed. [2021-10-28 08:40:53,900 INFO L857 garLoopResultBuilder]: For program point L46-1(lines 46 58) no Hoare annotation was computed. [2021-10-28 08:40:53,900 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-28 08:40:53,900 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-28 08:40:53,901 INFO L857 garLoopResultBuilder]: For program point L15(lines 15 18) no Hoare annotation was computed. [2021-10-28 08:40:53,901 INFO L853 garLoopResultBuilder]: At program point L15-2(lines 14 20) the Hoare annotation is: (let ((.cse3 (mod ULTIMATE.start_main_~B~0 4294967296))) (let ((.cse6 (* 8 .cse3)) (.cse9 (div (* ULTIMATE.start_main_~d~0 (- 1)) (- 2))) (.cse0 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse10 (* 2 .cse3)) (.cse1 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse8 (<= 1 .cse3)) (.cse2 (<= (div ULTIMATE.start_main_~r~0 (- 4294967296)) (div (+ (* ULTIMATE.start_main_~r~0 (- 1)) 10) 4294967296))) (.cse4 (= ULTIMATE.start_main_~q~0 0)) (.cse5 (= ULTIMATE.start_main_~r~0 (mod ULTIMATE.start_main_~A~0 4294967296))) (.cse7 (= (* .cse3 ULTIMATE.start_main_~p~0) ULTIMATE.start_main_~d~0))) (or (and .cse0 .cse1 .cse2 (<= (* 4 .cse3) ULTIMATE.start_main_~r~0) .cse4 (< (div (div (div (div (+ ULTIMATE.start_main_~d~0 (- 8)) 2) 2) 2) (- 4294967296)) 1) .cse5 (= ULTIMATE.start_main_~d~0 .cse6) .cse7) (and .cse0 (<= .cse3 10) .cse1 .cse8 .cse2 .cse4 (<= 1 ULTIMATE.start_main_~p~0) .cse5 (<= ULTIMATE.start_main_~d~0 .cse3) .cse7) (and .cse0 .cse1 (= ULTIMATE.start_main_~p~0 16) .cse2 (< (div (div (div (div (+ .cse9 (- 8)) 2) 2) 2) (- 4294967296)) 1) .cse4 .cse5 (<= .cse6 ULTIMATE.start_main_~r~0) .cse7) (and (<= .cse9 ULTIMATE.start_main_~r~0) .cse0 (= .cse10 ULTIMATE.start_main_~d~0) .cse1 .cse2 .cse4 (< (div (div (+ ULTIMATE.start_main_~d~0 (- 2)) 2) (- 4294967296)) 1) .cse5 (= ULTIMATE.start_main_~p~0 2)) (and .cse0 (<= .cse10 ULTIMATE.start_main_~r~0) (= ULTIMATE.start_main_~p~0 4) .cse1 .cse8 .cse2 .cse4 .cse5 .cse7)))) [2021-10-28 08:40:53,901 INFO L857 garLoopResultBuilder]: For program point L15-3(lines 15 18) no Hoare annotation was computed. [2021-10-28 08:40:53,902 INFO L853 garLoopResultBuilder]: At program point L15-5(lines 14 20) the Hoare annotation is: (let ((.cse3 (mod ULTIMATE.start_main_~B~0 4294967296))) (let ((.cse6 (* 8 .cse3)) (.cse9 (div (* ULTIMATE.start_main_~d~0 (- 1)) (- 2))) (.cse0 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse10 (* 2 .cse3)) (.cse1 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse8 (<= 1 .cse3)) (.cse2 (<= (div ULTIMATE.start_main_~r~0 (- 4294967296)) (div (+ (* ULTIMATE.start_main_~r~0 (- 1)) 10) 4294967296))) (.cse4 (= ULTIMATE.start_main_~q~0 0)) (.cse5 (= ULTIMATE.start_main_~r~0 (mod ULTIMATE.start_main_~A~0 4294967296))) (.cse7 (= (* .cse3 ULTIMATE.start_main_~p~0) ULTIMATE.start_main_~d~0))) (or (and .cse0 .cse1 .cse2 (<= (* 4 .cse3) ULTIMATE.start_main_~r~0) .cse4 (< (div (div (div (div (+ ULTIMATE.start_main_~d~0 (- 8)) 2) 2) 2) (- 4294967296)) 1) .cse5 (= ULTIMATE.start_main_~d~0 .cse6) .cse7) (and .cse0 (<= .cse3 10) .cse1 .cse8 .cse2 .cse4 (<= 1 ULTIMATE.start_main_~p~0) .cse5 (<= ULTIMATE.start_main_~d~0 .cse3) .cse7) (and .cse0 .cse1 (= ULTIMATE.start_main_~p~0 16) .cse2 (< (div (div (div (div (+ .cse9 (- 8)) 2) 2) 2) (- 4294967296)) 1) .cse4 .cse5 (<= .cse6 ULTIMATE.start_main_~r~0) .cse7) (and (<= .cse9 ULTIMATE.start_main_~r~0) .cse0 (= .cse10 ULTIMATE.start_main_~d~0) .cse1 .cse2 .cse4 (< (div (div (+ ULTIMATE.start_main_~d~0 (- 2)) 2) (- 4294967296)) 1) .cse5 (= ULTIMATE.start_main_~p~0 2)) (and .cse0 (<= .cse10 ULTIMATE.start_main_~r~0) (= ULTIMATE.start_main_~p~0 4) .cse1 .cse8 .cse2 .cse4 .cse5 .cse7)))) [2021-10-28 08:40:53,902 INFO L857 garLoopResultBuilder]: For program point L15-6(lines 15 18) no Hoare annotation was computed. [2021-10-28 08:40:53,902 INFO L853 garLoopResultBuilder]: At program point L15-8(line 40) the Hoare annotation is: (let ((.cse3 (mod ULTIMATE.start_main_~B~0 4294967296))) (let ((.cse9 (div (* ULTIMATE.start_main_~d~0 (- 1)) (- 2))) (.cse6 (* 8 .cse3)) (.cse0 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse1 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse8 (<= 1 .cse3)) (.cse2 (<= (div ULTIMATE.start_main_~r~0 (- 4294967296)) (div (+ (* ULTIMATE.start_main_~r~0 (- 1)) 10) 4294967296))) (.cse4 (= ULTIMATE.start_main_~q~0 0)) (.cse5 (= ULTIMATE.start_main_~r~0 (mod ULTIMATE.start_main_~A~0 4294967296))) (.cse7 (= (* .cse3 ULTIMATE.start_main_~p~0) ULTIMATE.start_main_~d~0))) (or (and .cse0 .cse1 .cse2 (<= (* 4 .cse3) ULTIMATE.start_main_~r~0) .cse4 (< (div (div (div (div (+ ULTIMATE.start_main_~d~0 (- 8)) 2) 2) 2) (- 4294967296)) 1) .cse5 (= ULTIMATE.start_main_~d~0 .cse6) .cse7) (and .cse0 (<= .cse3 10) .cse1 .cse8 .cse2 .cse4 (<= 1 ULTIMATE.start_main_~p~0) .cse5 (<= ULTIMATE.start_main_~d~0 .cse3) .cse7) (and (<= .cse9 ULTIMATE.start_main_~r~0) .cse0 .cse1 .cse2 .cse4 (< (div (div (+ ULTIMATE.start_main_~d~0 (- 2)) 2) (- 4294967296)) 1) .cse5 .cse7 (= ULTIMATE.start_main_~p~0 2)) (and .cse0 .cse1 (= ULTIMATE.start_main_~p~0 16) .cse2 (< (div (div (div (div (+ .cse9 (- 8)) 2) 2) 2) (- 4294967296)) 1) .cse4 .cse5 (<= .cse6 ULTIMATE.start_main_~r~0) .cse7) (and .cse0 (<= (* 2 .cse3) ULTIMATE.start_main_~r~0) (= ULTIMATE.start_main_~p~0 4) .cse1 .cse8 .cse2 .cse4 .cse5 .cse7)))) [2021-10-28 08:40:53,902 INFO L857 garLoopResultBuilder]: For program point L15-9(lines 15 18) no Hoare annotation was computed. [2021-10-28 08:40:53,903 INFO L853 garLoopResultBuilder]: At program point L15-11(lines 14 20) the Hoare annotation is: (let ((.cse30 (mod ULTIMATE.start_main_~B~0 4294967296))) (let ((.cse2 (* 2 .cse30)) (.cse33 (* ULTIMATE.start_main_~r~0 (- 1))) (.cse10 (mod ULTIMATE.start_main_~A~0 4294967296))) (let ((.cse25 (= (div (+ .cse33 .cse10) 2) ULTIMATE.start_main_~d~0)) (.cse0 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse32 (* ULTIMATE.start_main_~d~0 (- 1))) (.cse21 (= .cse2 ULTIMATE.start_main_~d~0)) (.cse4 (<= .cse30 10)) (.cse5 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse14 (= (+ ULTIMATE.start_main_~r~0 (* ULTIMATE.start_main_~q~0 .cse30)) .cse10)) (.cse22 (<= 1 .cse30)) (.cse16 (<= 0 ULTIMATE.start_main_~r~0)) (.cse1 (* 4 .cse30)) (.cse11 (* 8 .cse30))) (let ((.cse3 (= ULTIMATE.start_main_~p~0 4)) (.cse23 (= ULTIMATE.start_main_~q~0 8)) (.cse24 (<= .cse11 .cse10)) (.cse28 (div (+ .cse33 10) 4294967296)) (.cse9 (or (and .cse0 .cse21 .cse5 .cse14 .cse16 .cse25) (and .cse0 (< 0 (+ (div (+ .cse32 (* .cse30 (- 4)) 10) 4294967296) 1)) .cse21 .cse4 .cse5 .cse14 .cse22 .cse16 (< ULTIMATE.start_main_~r~0 .cse1)))) (.cse26 (< .cse10 .cse1)) (.cse13 (<= .cse10 10)) (.cse29 (= ULTIMATE.start_main_~d~0 .cse11)) (.cse15 (= ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~p~0)) (.cse27 (<= .cse2 .cse10)) (.cse17 (+ ULTIMATE.start_main_~d~0 ULTIMATE.start_main_~r~0)) (.cse18 (= (* .cse30 ULTIMATE.start_main_~p~0) ULTIMATE.start_main_~d~0)) (.cse31 (<= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse19 (= ULTIMATE.start_main_~p~0 1)) (.cse20 (= ULTIMATE.start_main_~d~0 .cse30)) (.cse6 (= ULTIMATE.start_main_~q~0 0)) (.cse7 (= ULTIMATE.start_main_~r~0 .cse10)) (.cse8 (< ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~d~0)) (.cse12 (= ULTIMATE.start_main_~p~0 2))) (or (and .cse0 (= .cse1 ULTIMATE.start_main_~d~0) (<= .cse2 ULTIMATE.start_main_~r~0) .cse3 .cse4 .cse5 .cse6 .cse7 .cse8) (and .cse9 (< .cse10 .cse11) (= (+ .cse1 ULTIMATE.start_main_~d~0 ULTIMATE.start_main_~r~0) .cse10) .cse12) (and .cse0 .cse3 .cse5 .cse13 .cse14 .cse15 .cse16 (< .cse17 .cse11) .cse18) (and .cse0 (= .cse17 .cse10) .cse19 .cse4 .cse15 .cse16 .cse20 .cse8 (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond))) (and (or (and .cse0 .cse21 .cse4 .cse5 .cse13 .cse14 .cse22 .cse16 (= ULTIMATE.start_main_~q~0 10)) (and .cse0 .cse21 .cse4 .cse5 .cse13 .cse14 .cse23 .cse22 .cse24)) .cse8 .cse12) (and .cse0 .cse3 .cse4 .cse5 .cse13 .cse14 .cse23 .cse22 .cse24 .cse25) (and .cse0 .cse26 .cse19 .cse4 .cse5 .cse14 .cse20 (= ULTIMATE.start_main_~q~0 3) .cse27) (and .cse0 .cse5 (= ULTIMATE.start_main_~p~0 16) (<= (div ULTIMATE.start_main_~r~0 (- 4294967296)) .cse28) .cse6 .cse7 (<= .cse11 ULTIMATE.start_main_~r~0) .cse8 .cse18) (and .cse0 .cse5 .cse13 .cse14 .cse15 .cse29 .cse18 .cse24 (< .cse17 (* 16 .cse30))) (and (< 0 (+ .cse28 1)) .cse0 .cse19 .cse4 .cse5 .cse13 .cse14 .cse22 .cse20) (and (= ULTIMATE.start_main_~q~0 4) .cse9 .cse13 .cse8 .cse12) (and .cse0 (= (+ .cse2 ULTIMATE.start_main_~r~0) .cse10) .cse31 (= ULTIMATE.start_main_~q~0 2) .cse26 .cse19 .cse4 .cse27 .cse25) (and .cse0 .cse31 .cse19 .cse4 .cse22 .cse20 .cse6 .cse7) (and .cse0 .cse5 .cse13 (<= .cse1 ULTIMATE.start_main_~r~0) .cse6 .cse7 .cse29 .cse8 .cse18) (and .cse0 .cse4 .cse5 .cse14 .cse15 .cse27 (< .cse17 .cse1) .cse18 .cse12) (and .cse31 .cse19 .cse4 .cse20 .cse6 .cse7 (< ULTIMATE.start_main_~r~0 .cse30)) (and (<= (div .cse32 (- 2)) ULTIMATE.start_main_~r~0) .cse0 .cse21 .cse4 .cse5 .cse6 .cse7 .cse8 .cse12)))))) [2021-10-28 08:40:53,903 INFO L857 garLoopResultBuilder]: For program point L15-12(lines 15 18) no Hoare annotation was computed. [2021-10-28 08:40:53,904 INFO L853 garLoopResultBuilder]: At program point L15-14(line 50) the Hoare annotation is: (let ((.cse32 (* ULTIMATE.start_main_~r~0 (- 1))) (.cse9 (mod ULTIMATE.start_main_~A~0 4294967296)) (.cse30 (mod ULTIMATE.start_main_~B~0 4294967296))) (let ((.cse2 (* 2 .cse30)) (.cse10 (* 8 .cse30)) (.cse24 (= (div (+ .cse32 .cse9) 2) ULTIMATE.start_main_~d~0)) (.cse0 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse31 (* ULTIMATE.start_main_~d~0 (- 1))) (.cse4 (<= .cse30 10)) (.cse5 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse13 (<= .cse9 10)) (.cse14 (= (+ ULTIMATE.start_main_~r~0 (* ULTIMATE.start_main_~q~0 .cse30)) .cse9)) (.cse16 (<= 1 .cse30)) (.cse26 (<= 0 ULTIMATE.start_main_~r~0)) (.cse1 (* 4 .cse30)) (.cse18 (= (* .cse30 ULTIMATE.start_main_~p~0) ULTIMATE.start_main_~d~0))) (let ((.cse11 (or (and .cse0 .cse4 .cse5 .cse13 .cse14 .cse16 .cse26 .cse18 .cse24) (and .cse0 (< 0 (+ (div (+ .cse31 (* .cse30 (- 4)) 10) 4294967296) 1)) .cse4 .cse5 .cse13 .cse14 .cse16 .cse26 (< ULTIMATE.start_main_~r~0 .cse1) .cse18))) (.cse20 (div (+ .cse32 10) 4294967296)) (.cse25 (= ULTIMATE.start_main_~q~0 8)) (.cse19 (<= .cse10 .cse9)) (.cse22 (< .cse9 .cse1)) (.cse3 (= ULTIMATE.start_main_~p~0 4)) (.cse17 (= ULTIMATE.start_main_~d~0 .cse10)) (.cse15 (= ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~p~0)) (.cse23 (<= .cse2 .cse9)) (.cse28 (+ ULTIMATE.start_main_~d~0 ULTIMATE.start_main_~r~0)) (.cse27 (<= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse29 (= ULTIMATE.start_main_~p~0 1)) (.cse21 (= ULTIMATE.start_main_~d~0 .cse30)) (.cse6 (= ULTIMATE.start_main_~q~0 0)) (.cse7 (= ULTIMATE.start_main_~r~0 .cse9)) (.cse8 (< ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~d~0)) (.cse12 (= ULTIMATE.start_main_~p~0 2))) (or (and .cse0 (= .cse1 ULTIMATE.start_main_~d~0) (<= .cse2 ULTIMATE.start_main_~r~0) .cse3 .cse4 .cse5 .cse6 .cse7 .cse8) (and (< .cse9 .cse10) (= (+ .cse1 ULTIMATE.start_main_~d~0 ULTIMATE.start_main_~r~0) .cse9) .cse11 .cse12) (and (= ULTIMATE.start_main_~q~0 4) .cse8 .cse11 .cse12) (and .cse0 .cse4 .cse5 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19) (and (< 0 (+ .cse20 1)) .cse0 .cse4 .cse5 .cse13 .cse14 .cse16 .cse21 .cse18) (and .cse0 .cse5 (= ULTIMATE.start_main_~p~0 16) (<= (div ULTIMATE.start_main_~r~0 (- 4294967296)) .cse20) .cse6 .cse7 (<= .cse10 ULTIMATE.start_main_~r~0) .cse8 .cse18) (and .cse0 (= (+ .cse2 ULTIMATE.start_main_~r~0) .cse9) (= ULTIMATE.start_main_~q~0 2) .cse22 .cse4 .cse5 .cse23 .cse18 .cse24) (and .cse8 (or (and .cse0 .cse4 .cse5 .cse13 .cse14 .cse25 .cse16 .cse18 .cse19) (and .cse0 .cse4 .cse5 .cse13 .cse14 .cse16 .cse26 (= ULTIMATE.start_main_~q~0 10) .cse18)) .cse12) (and .cse0 .cse27 (= .cse28 .cse9) .cse29 .cse4 .cse15 .cse26 .cse21 .cse8) (and .cse0 .cse27 .cse29 .cse4 .cse16 .cse21 .cse6 .cse7) (and .cse0 .cse4 .cse5 .cse13 .cse14 .cse25 .cse16 .cse18 .cse19 .cse24) (and .cse0 .cse22 .cse4 .cse5 .cse14 .cse21 (= ULTIMATE.start_main_~q~0 3) .cse23 .cse18) (and .cse0 .cse3 (<= .cse1 .cse9) .cse4 .cse5 .cse13 .cse14 .cse15 .cse16 (< .cse28 .cse10) .cse18) (and .cse0 .cse5 .cse13 (<= .cse1 ULTIMATE.start_main_~r~0) .cse6 .cse7 .cse17 .cse8 .cse18) (and .cse0 .cse4 .cse5 .cse14 .cse15 .cse23 (< .cse28 .cse1) .cse18 .cse12) (and .cse27 .cse29 .cse4 .cse21 .cse6 .cse7 (< ULTIMATE.start_main_~r~0 .cse30)) (and (<= (div .cse31 (- 2)) ULTIMATE.start_main_~r~0) .cse0 (= .cse2 ULTIMATE.start_main_~d~0) .cse4 .cse5 .cse6 .cse7 .cse8 .cse12))))) [2021-10-28 08:40:53,904 INFO L857 garLoopResultBuilder]: For program point L15-15(lines 15 18) no Hoare annotation was computed. [2021-10-28 08:40:53,904 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-28 08:40:53,904 INFO L853 garLoopResultBuilder]: At program point L15-17(lines 14 20) the Hoare annotation is: (and (= ULTIMATE.start_main_~p~0 1) (= ULTIMATE.start_main_~d~0 (mod ULTIMATE.start_main_~B~0 4294967296)) (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond))) [2021-10-28 08:40:53,904 INFO L857 garLoopResultBuilder]: For program point L15-18(lines 15 18) no Hoare annotation was computed. [2021-10-28 08:40:53,905 INFO L860 garLoopResultBuilder]: At program point L15-20(lines 14 20) the Hoare annotation is: true [2021-10-28 08:40:53,905 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-28 08:40:53,905 INFO L857 garLoopResultBuilder]: For program point L16(lines 16 17) no Hoare annotation was computed. [2021-10-28 08:40:53,905 INFO L857 garLoopResultBuilder]: For program point L16-1(lines 16 17) no Hoare annotation was computed. [2021-10-28 08:40:53,905 INFO L857 garLoopResultBuilder]: For program point L16-2(lines 16 17) no Hoare annotation was computed. [2021-10-28 08:40:53,906 INFO L857 garLoopResultBuilder]: For program point L16-3(lines 16 17) no Hoare annotation was computed. [2021-10-28 08:40:53,906 INFO L857 garLoopResultBuilder]: For program point L16-4(lines 16 17) no Hoare annotation was computed. [2021-10-28 08:40:53,906 INFO L857 garLoopResultBuilder]: For program point L16-5(lines 16 17) no Hoare annotation was computed. [2021-10-28 08:40:53,906 INFO L857 garLoopResultBuilder]: For program point L16-6(lines 16 17) no Hoare annotation was computed. [2021-10-28 08:40:53,906 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-28 08:40:53,907 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-28 08:40:53,911 INFO L731 BasicCegarLoop]: Path program histogram: [8, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:40:53,913 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 08:40:53,997 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 08:40:53 BoogieIcfgContainer [2021-10-28 08:40:53,998 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 08:40:53,998 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 08:40:53,998 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 08:40:53,999 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 08:40:53,999 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:35:48" (3/4) ... [2021-10-28 08:40:54,003 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-28 08:40:54,033 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2021-10-28 08:40:54,034 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-28 08:40:54,034 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 08:40:54,034 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 08:40:54,101 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/witness.graphml [2021-10-28 08:40:54,101 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 08:40:54,103 INFO L168 Benchmark]: Toolchain (without parser) took 306862.91 ms. Allocated memory was 117.4 MB in the beginning and 299.9 MB in the end (delta: 182.5 MB). Free memory was 79.8 MB in the beginning and 87.8 MB in the end (delta: -7.9 MB). Peak memory consumption was 174.5 MB. Max. memory is 16.1 GB. [2021-10-28 08:40:54,103 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 117.4 MB. Free memory is still 96.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:40:54,104 INFO L168 Benchmark]: CACSL2BoogieTranslator took 266.59 ms. Allocated memory is still 117.4 MB. Free memory was 79.6 MB in the beginning and 91.3 MB in the end (delta: -11.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 08:40:54,104 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.59 ms. Allocated memory is still 117.4 MB. Free memory was 91.3 MB in the beginning and 89.8 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:40:54,105 INFO L168 Benchmark]: Boogie Preprocessor took 36.81 ms. Allocated memory is still 117.4 MB. Free memory was 89.8 MB in the beginning and 88.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 08:40:54,105 INFO L168 Benchmark]: RCFGBuilder took 440.48 ms. Allocated memory is still 117.4 MB. Free memory was 88.1 MB in the beginning and 77.2 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 08:40:54,106 INFO L168 Benchmark]: TraceAbstraction took 305958.67 ms. Allocated memory was 117.4 MB in the beginning and 299.9 MB in the end (delta: 182.5 MB). Free memory was 76.7 MB in the beginning and 93.0 MB in the end (delta: -16.3 MB). Peak memory consumption was 217.1 MB. Max. memory is 16.1 GB. [2021-10-28 08:40:54,106 INFO L168 Benchmark]: Witness Printer took 103.33 ms. Allocated memory is still 299.9 MB. Free memory was 93.0 MB in the beginning and 87.8 MB in the end (delta: 5.2 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-28 08:40:54,109 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 117.4 MB. Free memory is still 96.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 266.59 ms. Allocated memory is still 117.4 MB. Free memory was 79.6 MB in the beginning and 91.3 MB in the end (delta: -11.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 37.59 ms. Allocated memory is still 117.4 MB. Free memory was 91.3 MB in the beginning and 89.8 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 36.81 ms. Allocated memory is still 117.4 MB. Free memory was 89.8 MB in the beginning and 88.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 440.48 ms. Allocated memory is still 117.4 MB. Free memory was 88.1 MB in the beginning and 77.2 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 305958.67 ms. Allocated memory was 117.4 MB in the beginning and 299.9 MB in the end (delta: 182.5 MB). Free memory was 76.7 MB in the beginning and 93.0 MB in the end (delta: -16.3 MB). Peak memory consumption was 217.1 MB. Max. memory is 16.1 GB. * Witness Printer took 103.33 ms. Allocated memory is still 299.9 MB. Free memory was 93.0 MB in the beginning and 87.8 MB in the end (delta: 5.2 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 43 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 305.7s, OverallIterations: 27, TraceHistogramMax: 5, PathProgramHistogramMax: 8, EmptinessCheckTime: 0.0s, AutomataDifference: 188.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 28.3s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 694 SDtfs, 2380 SDslu, 2575 SDs, 0 SdLazy, 7627 SolverSat, 1037 SolverUnsat, 10 SolverUnknown, 0 SolverNotchecked, 36.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1272 GetRequests, 823 SyntacticMatches, 3 SemanticMatches, 446 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1767 ImplicationChecksByTransitivity, 167.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=110occurred in iteration=15, InterpolantAutomatonStates: 346, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 27 MinimizatonAttempts, 247 StatesRemovedByMinimization, 22 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 9 PreInvPairs, 75 NumberOfFragments, 3206 HoareAnnotationTreeSize, 9 FomulaSimplifications, 144925 FormulaSimplificationTreeSizeReduction, 0.7s HoareSimplificationTime, 9 FomulaSimplificationsInter, 61692 FormulaSimplificationTreeSizeReductionInter, 27.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.7s SatisfiabilityAnalysisTime, 70.0s InterpolantComputationTime, 1106 NumberOfCodeBlocks, 1038 NumberOfCodeBlocksAsserted, 45 NumberOfCheckSat, 1079 ConstructedInterpolants, 0 QuantifiedInterpolants, 21264 SizeOfPredicates, 219 NumberOfNonLiveVariables, 3647 ConjunctsInSsa, 837 ConjunctsInUnsatCore, 27 InterpolantComputations, 7 PerfectInterpolantSequences, 290/1121 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 7 specifications checked. All of them hold - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((cond == 1 && 4 * (B % 4294967296) == d) && 2 * (B % 4294967296) <= r) && p == 4) && B % 4294967296 <= 10) && 1 == cond) && q == 0) && r == A % 4294967296) && r < d) || (((((((((cond == 1 && 2 * (B % 4294967296) == d) && 1 == cond) && r + q * (B % 4294967296) == A % 4294967296) && 0 <= r) && (r * -1 + A % 4294967296) / 2 == d) || ((((((((cond == 1 && 0 < (d * -1 + B % 4294967296 * -4 + 10) / 4294967296 + 1) && 2 * (B % 4294967296) == d) && B % 4294967296 <= 10) && 1 == cond) && r + q * (B % 4294967296) == A % 4294967296) && 1 <= B % 4294967296) && 0 <= r) && r < 4 * (B % 4294967296))) && A % 4294967296 < 8 * (B % 4294967296)) && 4 * (B % 4294967296) + d + r == A % 4294967296) && p == 2)) || ((((((((cond == 1 && p == 4) && 1 == cond) && A % 4294967296 <= 10) && r + q * (B % 4294967296) == A % 4294967296) && q == p) && 0 <= r) && d + r < 8 * (B % 4294967296)) && B % 4294967296 * p == d)) || ((((((((cond == 1 && d + r == A % 4294967296) && p == 1) && B % 4294967296 <= 10) && q == p) && 0 <= r) && d == B % 4294967296) && r < d) && !(0 == cond))) || (((((((((((cond == 1 && 2 * (B % 4294967296) == d) && B % 4294967296 <= 10) && 1 == cond) && A % 4294967296 <= 10) && r + q * (B % 4294967296) == A % 4294967296) && 1 <= B % 4294967296) && 0 <= r) && q == 10) || ((((((((cond == 1 && 2 * (B % 4294967296) == d) && B % 4294967296 <= 10) && 1 == cond) && A % 4294967296 <= 10) && r + q * (B % 4294967296) == A % 4294967296) && q == 8) && 1 <= B % 4294967296) && 8 * (B % 4294967296) <= A % 4294967296)) && r < d) && p == 2)) || (((((((((cond == 1 && p == 4) && B % 4294967296 <= 10) && 1 == cond) && A % 4294967296 <= 10) && r + q * (B % 4294967296) == A % 4294967296) && q == 8) && 1 <= B % 4294967296) && 8 * (B % 4294967296) <= A % 4294967296) && (r * -1 + A % 4294967296) / 2 == d)) || ((((((((cond == 1 && A % 4294967296 < 4 * (B % 4294967296)) && p == 1) && B % 4294967296 <= 10) && 1 == cond) && r + q * (B % 4294967296) == A % 4294967296) && d == B % 4294967296) && q == 3) && 2 * (B % 4294967296) <= A % 4294967296)) || ((((((((cond == 1 && 1 == cond) && p == 16) && r / -4294967296 <= (r * -1 + 10) / 4294967296) && q == 0) && r == A % 4294967296) && 8 * (B % 4294967296) <= r) && r < d) && B % 4294967296 * p == d)) || ((((((((cond == 1 && 1 == cond) && A % 4294967296 <= 10) && r + q * (B % 4294967296) == A % 4294967296) && q == p) && d == 8 * (B % 4294967296)) && B % 4294967296 * p == d) && 8 * (B % 4294967296) <= A % 4294967296) && d + r < 16 * (B % 4294967296))) || ((((((((0 < (r * -1 + 10) / 4294967296 + 1 && cond == 1) && p == 1) && B % 4294967296 <= 10) && 1 == cond) && A % 4294967296 <= 10) && r + q * (B % 4294967296) == A % 4294967296) && 1 <= B % 4294967296) && d == B % 4294967296)) || ((((q == 4 && ((((((cond == 1 && 2 * (B % 4294967296) == d) && 1 == cond) && r + q * (B % 4294967296) == A % 4294967296) && 0 <= r) && (r * -1 + A % 4294967296) / 2 == d) || ((((((((cond == 1 && 0 < (d * -1 + B % 4294967296 * -4 + 10) / 4294967296 + 1) && 2 * (B % 4294967296) == d) && B % 4294967296 <= 10) && 1 == cond) && r + q * (B % 4294967296) == A % 4294967296) && 1 <= B % 4294967296) && 0 <= r) && r < 4 * (B % 4294967296)))) && A % 4294967296 <= 10) && r < d) && p == 2)) || ((((((((cond == 1 && 2 * (B % 4294967296) + r == A % 4294967296) && 1 <= cond) && q == 2) && A % 4294967296 < 4 * (B % 4294967296)) && p == 1) && B % 4294967296 <= 10) && 2 * (B % 4294967296) <= A % 4294967296) && (r * -1 + A % 4294967296) / 2 == d)) || (((((((cond == 1 && 1 <= cond) && p == 1) && B % 4294967296 <= 10) && 1 <= B % 4294967296) && d == B % 4294967296) && q == 0) && r == A % 4294967296)) || ((((((((cond == 1 && 1 == cond) && A % 4294967296 <= 10) && 4 * (B % 4294967296) <= r) && q == 0) && r == A % 4294967296) && d == 8 * (B % 4294967296)) && r < d) && B % 4294967296 * p == d)) || ((((((((cond == 1 && B % 4294967296 <= 10) && 1 == cond) && r + q * (B % 4294967296) == A % 4294967296) && q == p) && 2 * (B % 4294967296) <= A % 4294967296) && d + r < 4 * (B % 4294967296)) && B % 4294967296 * p == d) && p == 2)) || ((((((1 <= cond && p == 1) && B % 4294967296 <= 10) && d == B % 4294967296) && q == 0) && r == A % 4294967296) && r < B % 4294967296)) || ((((((((d * -1 / -2 <= r && cond == 1) && 2 * (B % 4294967296) == d) && B % 4294967296 <= 10) && 1 == cond) && q == 0) && r == A % 4294967296) && r < d) && p == 2) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: (p == 1 && d == B % 4294967296) && !(0 == cond) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((cond == 1 && 4 * (B % 4294967296) == d) && 2 * (B % 4294967296) <= r) && p == 4) && B % 4294967296 <= 10) && 1 == cond) && q == 0) && r == A % 4294967296) && r < d) || (((A % 4294967296 < 8 * (B % 4294967296) && 4 * (B % 4294967296) + d + r == A % 4294967296) && (((((((((cond == 1 && B % 4294967296 <= 10) && 1 == cond) && A % 4294967296 <= 10) && r + q * (B % 4294967296) == A % 4294967296) && 1 <= B % 4294967296) && 0 <= r) && B % 4294967296 * p == d) && (r * -1 + A % 4294967296) / 2 == d) || (((((((((cond == 1 && 0 < (d * -1 + B % 4294967296 * -4 + 10) / 4294967296 + 1) && B % 4294967296 <= 10) && 1 == cond) && A % 4294967296 <= 10) && r + q * (B % 4294967296) == A % 4294967296) && 1 <= B % 4294967296) && 0 <= r) && r < 4 * (B % 4294967296)) && B % 4294967296 * p == d))) && p == 2)) || (((q == 4 && r < d) && (((((((((cond == 1 && B % 4294967296 <= 10) && 1 == cond) && A % 4294967296 <= 10) && r + q * (B % 4294967296) == A % 4294967296) && 1 <= B % 4294967296) && 0 <= r) && B % 4294967296 * p == d) && (r * -1 + A % 4294967296) / 2 == d) || (((((((((cond == 1 && 0 < (d * -1 + B % 4294967296 * -4 + 10) / 4294967296 + 1) && B % 4294967296 <= 10) && 1 == cond) && A % 4294967296 <= 10) && r + q * (B % 4294967296) == A % 4294967296) && 1 <= B % 4294967296) && 0 <= r) && r < 4 * (B % 4294967296)) && B % 4294967296 * p == d))) && p == 2)) || (((((((((cond == 1 && B % 4294967296 <= 10) && 1 == cond) && A % 4294967296 <= 10) && r + q * (B % 4294967296) == A % 4294967296) && q == p) && 1 <= B % 4294967296) && d == 8 * (B % 4294967296)) && B % 4294967296 * p == d) && 8 * (B % 4294967296) <= A % 4294967296)) || ((((((((0 < (r * -1 + 10) / 4294967296 + 1 && cond == 1) && B % 4294967296 <= 10) && 1 == cond) && A % 4294967296 <= 10) && r + q * (B % 4294967296) == A % 4294967296) && 1 <= B % 4294967296) && d == B % 4294967296) && B % 4294967296 * p == d)) || ((((((((cond == 1 && 1 == cond) && p == 16) && r / -4294967296 <= (r * -1 + 10) / 4294967296) && q == 0) && r == A % 4294967296) && 8 * (B % 4294967296) <= r) && r < d) && B % 4294967296 * p == d)) || ((((((((cond == 1 && 2 * (B % 4294967296) + r == A % 4294967296) && q == 2) && A % 4294967296 < 4 * (B % 4294967296)) && B % 4294967296 <= 10) && 1 == cond) && 2 * (B % 4294967296) <= A % 4294967296) && B % 4294967296 * p == d) && (r * -1 + A % 4294967296) / 2 == d)) || ((r < d && (((((((((cond == 1 && B % 4294967296 <= 10) && 1 == cond) && A % 4294967296 <= 10) && r + q * (B % 4294967296) == A % 4294967296) && q == 8) && 1 <= B % 4294967296) && B % 4294967296 * p == d) && 8 * (B % 4294967296) <= A % 4294967296) || ((((((((cond == 1 && B % 4294967296 <= 10) && 1 == cond) && A % 4294967296 <= 10) && r + q * (B % 4294967296) == A % 4294967296) && 1 <= B % 4294967296) && 0 <= r) && q == 10) && B % 4294967296 * p == d))) && p == 2)) || ((((((((cond == 1 && 1 <= cond) && d + r == A % 4294967296) && p == 1) && B % 4294967296 <= 10) && q == p) && 0 <= r) && d == B % 4294967296) && r < d)) || (((((((cond == 1 && 1 <= cond) && p == 1) && B % 4294967296 <= 10) && 1 <= B % 4294967296) && d == B % 4294967296) && q == 0) && r == A % 4294967296)) || (((((((((cond == 1 && B % 4294967296 <= 10) && 1 == cond) && A % 4294967296 <= 10) && r + q * (B % 4294967296) == A % 4294967296) && q == 8) && 1 <= B % 4294967296) && B % 4294967296 * p == d) && 8 * (B % 4294967296) <= A % 4294967296) && (r * -1 + A % 4294967296) / 2 == d)) || ((((((((cond == 1 && A % 4294967296 < 4 * (B % 4294967296)) && B % 4294967296 <= 10) && 1 == cond) && r + q * (B % 4294967296) == A % 4294967296) && d == B % 4294967296) && q == 3) && 2 * (B % 4294967296) <= A % 4294967296) && B % 4294967296 * p == d)) || ((((((((((cond == 1 && p == 4) && 4 * (B % 4294967296) <= A % 4294967296) && B % 4294967296 <= 10) && 1 == cond) && A % 4294967296 <= 10) && r + q * (B % 4294967296) == A % 4294967296) && q == p) && 1 <= B % 4294967296) && d + r < 8 * (B % 4294967296)) && B % 4294967296 * p == d)) || ((((((((cond == 1 && 1 == cond) && A % 4294967296 <= 10) && 4 * (B % 4294967296) <= r) && q == 0) && r == A % 4294967296) && d == 8 * (B % 4294967296)) && r < d) && B % 4294967296 * p == d)) || ((((((((cond == 1 && B % 4294967296 <= 10) && 1 == cond) && r + q * (B % 4294967296) == A % 4294967296) && q == p) && 2 * (B % 4294967296) <= A % 4294967296) && d + r < 4 * (B % 4294967296)) && B % 4294967296 * p == d) && p == 2)) || ((((((1 <= cond && p == 1) && B % 4294967296 <= 10) && d == B % 4294967296) && q == 0) && r == A % 4294967296) && r < B % 4294967296)) || ((((((((d * -1 / -2 <= r && cond == 1) && 2 * (B % 4294967296) == d) && B % 4294967296 <= 10) && 1 == cond) && q == 0) && r == A % 4294967296) && r < d) && p == 2) - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: (((((((((((cond == 1 && 1 == cond) && r / -4294967296 <= (r * -1 + 10) / 4294967296) && 4 * (B % 4294967296) <= r) && q == 0) && (d + -8) / 2 / 2 / 2 / -4294967296 < 1) && r == A % 4294967296) && d == 8 * (B % 4294967296)) && B % 4294967296 * p == d) || (((((((((cond == 1 && B % 4294967296 <= 10) && 1 == cond) && 1 <= B % 4294967296) && r / -4294967296 <= (r * -1 + 10) / 4294967296) && q == 0) && 1 <= p) && r == A % 4294967296) && d <= B % 4294967296) && B % 4294967296 * p == d)) || ((((((((d * -1 / -2 <= r && cond == 1) && 1 == cond) && r / -4294967296 <= (r * -1 + 10) / 4294967296) && q == 0) && (d + -2) / 2 / -4294967296 < 1) && r == A % 4294967296) && B % 4294967296 * p == d) && p == 2)) || ((((((((cond == 1 && 1 == cond) && p == 16) && r / -4294967296 <= (r * -1 + 10) / 4294967296) && (d * -1 / -2 + -8) / 2 / 2 / 2 / -4294967296 < 1) && q == 0) && r == A % 4294967296) && 8 * (B % 4294967296) <= r) && B % 4294967296 * p == d)) || ((((((((cond == 1 && 2 * (B % 4294967296) <= r) && p == 4) && 1 == cond) && 1 <= B % 4294967296) && r / -4294967296 <= (r * -1 + 10) / 4294967296) && q == 0) && r == A % 4294967296) && B % 4294967296 * p == d) - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: (((((((((((cond == 1 && 1 == cond) && r / -4294967296 <= (r * -1 + 10) / 4294967296) && 4 * (B % 4294967296) <= r) && q == 0) && (d + -8) / 2 / 2 / 2 / -4294967296 < 1) && r == A % 4294967296) && d == 8 * (B % 4294967296)) && B % 4294967296 * p == d) || (((((((((cond == 1 && B % 4294967296 <= 10) && 1 == cond) && 1 <= B % 4294967296) && r / -4294967296 <= (r * -1 + 10) / 4294967296) && q == 0) && 1 <= p) && r == A % 4294967296) && d <= B % 4294967296) && B % 4294967296 * p == d)) || ((((((((cond == 1 && 1 == cond) && p == 16) && r / -4294967296 <= (r * -1 + 10) / 4294967296) && (d * -1 / -2 + -8) / 2 / 2 / 2 / -4294967296 < 1) && q == 0) && r == A % 4294967296) && 8 * (B % 4294967296) <= r) && B % 4294967296 * p == d)) || ((((((((d * -1 / -2 <= r && cond == 1) && 2 * (B % 4294967296) == d) && 1 == cond) && r / -4294967296 <= (r * -1 + 10) / 4294967296) && q == 0) && (d + -2) / 2 / -4294967296 < 1) && r == A % 4294967296) && p == 2)) || ((((((((cond == 1 && 2 * (B % 4294967296) <= r) && p == 4) && 1 == cond) && 1 <= B % 4294967296) && r / -4294967296 <= (r * -1 + 10) / 4294967296) && q == 0) && r == A % 4294967296) && B % 4294967296 * p == d) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: (((((((((((cond == 1 && 1 == cond) && r / -4294967296 <= (r * -1 + 10) / 4294967296) && 4 * (B % 4294967296) <= r) && q == 0) && (d + -8) / 2 / 2 / 2 / -4294967296 < 1) && r == A % 4294967296) && d == 8 * (B % 4294967296)) && B % 4294967296 * p == d) || (((((((((cond == 1 && B % 4294967296 <= 10) && 1 == cond) && 1 <= B % 4294967296) && r / -4294967296 <= (r * -1 + 10) / 4294967296) && q == 0) && 1 <= p) && r == A % 4294967296) && d <= B % 4294967296) && B % 4294967296 * p == d)) || ((((((((cond == 1 && 1 == cond) && p == 16) && r / -4294967296 <= (r * -1 + 10) / 4294967296) && (d * -1 / -2 + -8) / 2 / 2 / 2 / -4294967296 < 1) && q == 0) && r == A % 4294967296) && 8 * (B % 4294967296) <= r) && B % 4294967296 * p == d)) || ((((((((d * -1 / -2 <= r && cond == 1) && 2 * (B % 4294967296) == d) && 1 == cond) && r / -4294967296 <= (r * -1 + 10) / 4294967296) && q == 0) && (d + -2) / 2 / -4294967296 < 1) && r == A % 4294967296) && p == 2)) || ((((((((cond == 1 && 2 * (B % 4294967296) <= r) && p == 4) && 1 == cond) && 1 <= B % 4294967296) && r / -4294967296 <= (r * -1 + 10) / 4294967296) && q == 0) && r == A % 4294967296) && B % 4294967296 * p == d) - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: (((((((((((cond == 1 && 2 * (B % 4294967296) <= r) && p == 4) && 1 == cond) && r + q * (B % 4294967296) == A % 4294967296) && 1 <= B % 4294967296) && r / -4294967296 <= (r * -1 + 10) / 4294967296) && r == A % 4294967296) && B % 4294967296 * p == d) || ((((((((cond == 1 && B % 4294967296 <= 10) && 1 <= B % 4294967296) && r / -4294967296 <= (r * -1 + 10) / 4294967296) && q == 0) && 1 <= p) && r == A % 4294967296) && d <= B % 4294967296) && B % 4294967296 * p == d)) || ((((((((((0 <= d * -1 / -2 && d * -1 / -2 <= r) && cond == 1) && d == 2 * (p * -1 / -2 * (B % 4294967296))) && B % 4294967296 <= 10) && 1 == cond) && p == 16) && 1 <= B % 4294967296) && r / -4294967296 <= (r * -1 + 10) / 4294967296) && q == 0) && r == A % 4294967296)) || ((((((((d * -1 / -2 <= r && cond == 1) && 2 * (B % 4294967296) == d) && 1 == cond) && r + q * (B % 4294967296) == A % 4294967296) && r / -4294967296 <= (r * -1 + 10) / 4294967296) && (d + -2) / 2 / -4294967296 < 1) && r == A % 4294967296) && p == 2)) || (((((((((((0 <= d * -1 / -2 && d * -1 / -2 <= r) && cond == 1) && d == 2 * (p * -1 / -2 * (B % 4294967296))) && B % 4294967296 <= 10) && 1 == cond) && 1 <= B % 4294967296) && r / -4294967296 <= (r * -1 + 10) / 4294967296) && q == 0) && r == A % 4294967296) && d == 8 * (B % 4294967296)) && B % 4294967296 * p == d) RESULT: Ultimate proved your program to be correct! [2021-10-28 08:40:54,316 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7396c7e7-6833-4f07-a7d8-e36daf27fbc0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...