./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench/lcm2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2dfbc9a-0a2b-4133-a1de-fb86694930df/bin/uautomizer-AkOaLMaTGY/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2dfbc9a-0a2b-4133-a1de-fb86694930df/bin/uautomizer-AkOaLMaTGY/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2dfbc9a-0a2b-4133-a1de-fb86694930df/bin/uautomizer-AkOaLMaTGY/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2dfbc9a-0a2b-4133-a1de-fb86694930df/bin/uautomizer-AkOaLMaTGY/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench/lcm2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2dfbc9a-0a2b-4133-a1de-fb86694930df/bin/uautomizer-AkOaLMaTGY/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2dfbc9a-0a2b-4133-a1de-fb86694930df/bin/uautomizer-AkOaLMaTGY --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 e0d433468442fea01fd6f51a5fcaea8db7e3b564878994442665eb482321c037 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 08:34:05,999 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 08:34:06,001 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 08:34:06,062 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 08:34:06,062 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 08:34:06,068 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 08:34:06,070 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 08:34:06,075 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 08:34:06,078 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 08:34:06,085 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 08:34:06,086 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 08:34:06,088 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 08:34:06,089 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 08:34:06,092 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 08:34:06,094 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 08:34:06,100 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 08:34:06,102 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 08:34:06,104 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 08:34:06,107 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 08:34:06,116 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 08:34:06,119 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 08:34:06,121 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 08:34:06,125 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 08:34:06,127 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 08:34:06,139 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 08:34:06,139 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 08:34:06,140 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 08:34:06,142 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 08:34:06,143 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 08:34:06,145 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 08:34:06,145 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 08:34:06,147 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 08:34:06,149 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 08:34:06,151 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 08:34:06,153 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 08:34:06,153 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 08:34:06,154 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 08:34:06,154 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 08:34:06,155 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 08:34:06,156 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 08:34:06,157 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 08:34:06,158 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2dfbc9a-0a2b-4133-a1de-fb86694930df/bin/uautomizer-AkOaLMaTGY/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-07 08:34:06,210 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 08:34:06,210 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 08:34:06,211 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 08:34:06,212 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 08:34:06,213 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 08:34:06,213 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 08:34:06,214 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 08:34:06,214 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 08:34:06,214 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 08:34:06,214 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 08:34:06,216 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 08:34:06,216 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 08:34:06,216 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 08:34:06,216 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 08:34:06,217 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 08:34:06,217 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 08:34:06,217 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 08:34:06,217 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 08:34:06,218 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 08:34:06,218 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 08:34:06,218 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 08:34:06,218 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 08:34:06,219 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 08:34:06,219 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 08:34:06,219 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 08:34:06,219 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 08:34:06,220 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 08:34:06,220 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 08:34:06,220 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 08:34:06,222 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 08:34:06,222 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 08:34:06,222 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 08:34:06,223 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_b2dfbc9a-0a2b-4133-a1de-fb86694930df/bin/uautomizer-AkOaLMaTGY/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2dfbc9a-0a2b-4133-a1de-fb86694930df/bin/uautomizer-AkOaLMaTGY Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e0d433468442fea01fd6f51a5fcaea8db7e3b564878994442665eb482321c037 [2021-11-07 08:34:06,533 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 08:34:06,567 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 08:34:06,570 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 08:34:06,572 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 08:34:06,573 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 08:34:06,574 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2dfbc9a-0a2b-4133-a1de-fb86694930df/bin/uautomizer-AkOaLMaTGY/../../sv-benchmarks/c/nla-digbench/lcm2.c [2021-11-07 08:34:06,668 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2dfbc9a-0a2b-4133-a1de-fb86694930df/bin/uautomizer-AkOaLMaTGY/data/509145f1e/c599e6a9e2a0442686ad3c4920aa768f/FLAG460dbdf46 [2021-11-07 08:34:07,228 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 08:34:07,229 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2dfbc9a-0a2b-4133-a1de-fb86694930df/sv-benchmarks/c/nla-digbench/lcm2.c [2021-11-07 08:34:07,236 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2dfbc9a-0a2b-4133-a1de-fb86694930df/bin/uautomizer-AkOaLMaTGY/data/509145f1e/c599e6a9e2a0442686ad3c4920aa768f/FLAG460dbdf46 [2021-11-07 08:34:07,607 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2dfbc9a-0a2b-4133-a1de-fb86694930df/bin/uautomizer-AkOaLMaTGY/data/509145f1e/c599e6a9e2a0442686ad3c4920aa768f [2021-11-07 08:34:07,609 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 08:34:07,611 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 08:34:07,617 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 08:34:07,618 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 08:34:07,622 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 08:34:07,623 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:34:07" (1/1) ... [2021-11-07 08:34:07,624 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b9f6915 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:34:07, skipping insertion in model container [2021-11-07 08:34:07,624 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:34:07" (1/1) ... [2021-11-07 08:34:07,632 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 08:34:07,650 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 08:34:07,864 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_b2dfbc9a-0a2b-4133-a1de-fb86694930df/sv-benchmarks/c/nla-digbench/lcm2.c[537,550] [2021-11-07 08:34:07,883 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 08:34:07,894 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 08:34:07,910 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_b2dfbc9a-0a2b-4133-a1de-fb86694930df/sv-benchmarks/c/nla-digbench/lcm2.c[537,550] [2021-11-07 08:34:07,918 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 08:34:07,933 INFO L208 MainTranslator]: Completed translation [2021-11-07 08:34:07,934 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:34:07 WrapperNode [2021-11-07 08:34:07,934 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 08:34:07,936 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 08:34:07,936 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 08:34:07,936 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 08:34:07,945 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:34:07" (1/1) ... [2021-11-07 08:34:07,952 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:34:07" (1/1) ... [2021-11-07 08:34:07,974 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 08:34:07,974 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 08:34:07,975 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 08:34:07,975 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 08:34:07,983 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:34:07" (1/1) ... [2021-11-07 08:34:07,983 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:34:07" (1/1) ... [2021-11-07 08:34:07,985 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:34:07" (1/1) ... [2021-11-07 08:34:07,985 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:34:07" (1/1) ... [2021-11-07 08:34:07,990 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:34:07" (1/1) ... [2021-11-07 08:34:07,995 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:34:07" (1/1) ... [2021-11-07 08:34:07,996 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:34:07" (1/1) ... [2021-11-07 08:34:08,002 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 08:34:08,003 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 08:34:08,003 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 08:34:08,003 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 08:34:08,010 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:34:07" (1/1) ... [2021-11-07 08:34:08,019 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 08:34:08,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2dfbc9a-0a2b-4133-a1de-fb86694930df/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:34:08,050 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2dfbc9a-0a2b-4133-a1de-fb86694930df/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 08:34:08,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2dfbc9a-0a2b-4133-a1de-fb86694930df/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 08:34:08,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 08:34:08,098 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 08:34:08,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 08:34:08,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 08:34:08,327 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 08:34:08,328 INFO L299 CfgBuilder]: Removed 17 assume(true) statements. [2021-11-07 08:34:08,329 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:34:08 BoogieIcfgContainer [2021-11-07 08:34:08,330 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 08:34:08,331 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 08:34:08,332 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 08:34:08,335 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 08:34:08,335 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 08:34:07" (1/3) ... [2021-11-07 08:34:08,336 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@241e2340 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:34:08, skipping insertion in model container [2021-11-07 08:34:08,336 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:34:07" (2/3) ... [2021-11-07 08:34:08,336 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@241e2340 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:34:08, skipping insertion in model container [2021-11-07 08:34:08,336 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:34:08" (3/3) ... [2021-11-07 08:34:08,338 INFO L111 eAbstractionObserver]: Analyzing ICFG lcm2.c [2021-11-07 08:34:08,343 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 08:34:08,343 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-07 08:34:08,390 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 08:34:08,397 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 [2021-11-07 08:34:08,397 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-07 08:34:08,411 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 21 states have (on average 1.5714285714285714) internal successors, (33), 23 states have internal predecessors, (33), 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) [2021-11-07 08:34:08,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-07 08:34:08,416 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:34:08,417 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:34:08,418 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 08:34:08,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:34:08,423 INFO L85 PathProgramCache]: Analyzing trace with hash -144177098, now seen corresponding path program 1 times [2021-11-07 08:34:08,431 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:34:08,432 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548775523] [2021-11-07 08:34:08,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:34:08,433 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:34:08,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:34:08,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:34:08,668 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:34:08,669 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548775523] [2021-11-07 08:34:08,669 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548775523] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:34:08,670 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:34:08,670 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 08:34:08,672 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798164333] [2021-11-07 08:34:08,685 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 08:34:08,685 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:34:08,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 08:34:08,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 08:34:08,708 INFO L87 Difference]: Start difference. First operand has 24 states, 21 states have (on average 1.5714285714285714) internal successors, (33), 23 states have internal predecessors, (33), 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 6.5) internal successors, (13), 2 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) [2021-11-07 08:34:08,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:34:08,726 INFO L93 Difference]: Finished difference Result 45 states and 62 transitions. [2021-11-07 08:34:08,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 08:34:08,728 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 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 [2021-11-07 08:34:08,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:34:08,738 INFO L225 Difference]: With dead ends: 45 [2021-11-07 08:34:08,738 INFO L226 Difference]: Without dead ends: 20 [2021-11-07 08:34:08,742 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 [2021-11-07 08:34:08,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2021-11-07 08:34:08,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2021-11-07 08:34:08,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 19 states have internal predecessors, (21), 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) [2021-11-07 08:34:08,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2021-11-07 08:34:08,779 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 13 [2021-11-07 08:34:08,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:34:08,781 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2021-11-07 08:34:08,782 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 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) [2021-11-07 08:34:08,782 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2021-11-07 08:34:08,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-07 08:34:08,784 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:34:08,784 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:34:08,785 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 08:34:08,786 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 08:34:08,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:34:08,789 INFO L85 PathProgramCache]: Analyzing trace with hash -1281167042, now seen corresponding path program 1 times [2021-11-07 08:34:08,789 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:34:08,790 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933171777] [2021-11-07 08:34:08,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:34:08,790 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:34:08,846 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 08:34:08,846 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1725249465] [2021-11-07 08:34:08,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:34:08,847 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 08:34:08,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2dfbc9a-0a2b-4133-a1de-fb86694930df/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:34:08,853 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2dfbc9a-0a2b-4133-a1de-fb86694930df/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 08:34:08,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2dfbc9a-0a2b-4133-a1de-fb86694930df/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-07 08:34:08,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:34:08,947 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-07 08:34:08,953 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:34:09,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:34:09,218 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:34:09,219 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933171777] [2021-11-07 08:34:09,219 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 08:34:09,219 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1725249465] [2021-11-07 08:34:09,220 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1725249465] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:34:09,220 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:34:09,220 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 08:34:09,221 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335149182] [2021-11-07 08:34:09,223 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 08:34:09,223 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:34:09,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 08:34:09,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 08:34:09,227 INFO L87 Difference]: Start difference. First operand 20 states and 21 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) [2021-11-07 08:34:09,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:34:09,347 INFO L93 Difference]: Finished difference Result 31 states and 33 transitions. [2021-11-07 08:34:09,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 08:34:09,349 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 [2021-11-07 08:34:09,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:34:09,350 INFO L225 Difference]: With dead ends: 31 [2021-11-07 08:34:09,350 INFO L226 Difference]: Without dead ends: 25 [2021-11-07 08:34:09,352 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 08:34:09,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2021-11-07 08:34:09,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 23. [2021-11-07 08:34:09,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 21 states have (on average 1.1428571428571428) internal successors, (24), 22 states have internal predecessors, (24), 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) [2021-11-07 08:34:09,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2021-11-07 08:34:09,365 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 13 [2021-11-07 08:34:09,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:34:09,366 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2021-11-07 08:34:09,366 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) [2021-11-07 08:34:09,367 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2021-11-07 08:34:09,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-07 08:34:09,368 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:34:09,369 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:34:09,408 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2dfbc9a-0a2b-4133-a1de-fb86694930df/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-07 08:34:09,580 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2dfbc9a-0a2b-4133-a1de-fb86694930df/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 08:34:09,581 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 08:34:09,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:34:09,581 INFO L85 PathProgramCache]: Analyzing trace with hash 1666959667, now seen corresponding path program 1 times [2021-11-07 08:34:09,582 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:34:09,582 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435296792] [2021-11-07 08:34:09,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:34:09,582 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:34:09,609 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 08:34:09,610 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [662571331] [2021-11-07 08:34:09,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:34:09,610 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 08:34:09,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2dfbc9a-0a2b-4133-a1de-fb86694930df/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:34:09,612 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2dfbc9a-0a2b-4133-a1de-fb86694930df/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 08:34:09,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2dfbc9a-0a2b-4133-a1de-fb86694930df/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process