/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/pthread-wmm/safe035_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 13:46:36,185 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 13:46:36,188 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 13:46:36,226 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-23 13:46:36,227 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-23 13:46:36,228 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-23 13:46:36,230 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-23 13:46:36,232 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-23 13:46:36,235 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-23 13:46:36,236 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-23 13:46:36,237 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-23 13:46:36,239 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-23 13:46:36,239 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 13:46:36,241 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 13:46:36,242 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 13:46:36,243 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 13:46:36,244 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 13:46:36,246 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 13:46:36,248 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 13:46:36,262 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 13:46:36,264 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 13:46:36,266 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 13:46:36,267 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 13:46:36,268 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 13:46:36,271 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-23 13:46:36,272 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-23 13:46:36,272 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-23 13:46:36,273 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-23 13:46:36,274 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-23 13:46:36,275 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-23 13:46:36,275 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-23 13:46:36,276 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-23 13:46:36,277 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-23 13:46:36,278 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-23 13:46:36,279 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-23 13:46:36,280 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-23 13:46:36,281 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-23 13:46:36,281 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-23 13:46:36,282 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 13:46:36,283 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 13:46:36,283 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 13:46:36,285 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-23 13:46:36,312 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 13:46:36,312 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 13:46:36,314 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 13:46:36,314 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 13:46:36,314 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 13:46:36,315 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 13:46:36,315 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 13:46:36,315 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 13:46:36,316 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-23 13:46:36,316 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 13:46:36,316 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-23 13:46:36,316 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-23 13:46:36,317 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 13:46:36,317 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-23 13:46:36,317 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 13:46:36,318 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 13:46:36,318 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 13:46:36,318 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 13:46:36,318 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 13:46:36,318 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 13:46:36,319 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-23 13:46:36,319 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 13:46:36,319 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 13:46:36,319 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-23 13:46:36,320 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 13:46:36,320 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:/storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 13:46:36,741 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 13:46:36,772 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 13:46:36,776 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 13:46:36,778 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 13:46:36,782 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 13:46:36,783 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe035_tso.opt.i [2020-12-23 13:46:36,877 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/528fef94e/1f5c4f71216b4ae4b865603b5d7c3151/FLAGc3f0b2ec3 [2020-12-23 13:46:37,617 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 13:46:37,618 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe035_tso.opt.i [2020-12-23 13:46:37,642 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/528fef94e/1f5c4f71216b4ae4b865603b5d7c3151/FLAGc3f0b2ec3 [2020-12-23 13:46:37,875 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/528fef94e/1f5c4f71216b4ae4b865603b5d7c3151 [2020-12-23 13:46:37,879 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 13:46:37,881 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 13:46:37,886 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 13:46:37,886 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 13:46:37,890 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 13:46:37,891 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 01:46:37" (1/1) ... [2020-12-23 13:46:37,894 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60f55dfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:46:37, skipping insertion in model container [2020-12-23 13:46:37,894 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 01:46:37" (1/1) ... [2020-12-23 13:46:37,906 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 13:46:37,987 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-23 13:46:38,261 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe035_tso.opt.i[949,962] left hand side expression in assignment: lhs: VariableLHS[~y~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p0_EAX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~x~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p1_EAX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~y~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p2_EAX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main$tmp_guard0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main$tmp_guard1~0,GLOBAL] [2020-12-23 13:46:38,536 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 13:46:38,547 INFO L203 MainTranslator]: Completed pre-run [2020-12-23 13:46:38,566 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe035_tso.opt.i[949,962] left hand side expression in assignment: lhs: VariableLHS[~y~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p0_EAX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~x~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p1_EAX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~y~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p2_EAX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main$tmp_guard0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main$tmp_guard1~0,GLOBAL] [2020-12-23 13:46:38,639 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 13:46:38,745 INFO L208 MainTranslator]: Completed translation [2020-12-23 13:46:38,745 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:46:38 WrapperNode [2020-12-23 13:46:38,746 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 13:46:38,747 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 13:46:38,747 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 13:46:38,747 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 13:46:38,756 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:46:38" (1/1) ... [2020-12-23 13:46:38,772 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:46:38" (1/1) ... [2020-12-23 13:46:38,795 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 13:46:38,796 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 13:46:38,796 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 13:46:38,797 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 13:46:38,806 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:46:38" (1/1) ... [2020-12-23 13:46:38,807 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:46:38" (1/1) ... [2020-12-23 13:46:38,810 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:46:38" (1/1) ... [2020-12-23 13:46:38,811 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:46:38" (1/1) ... [2020-12-23 13:46:38,817 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:46:38" (1/1) ... [2020-12-23 13:46:38,820 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:46:38" (1/1) ... [2020-12-23 13:46:38,822 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:46:38" (1/1) ... [2020-12-23 13:46:38,825 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 13:46:38,827 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 13:46:38,827 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 13:46:38,827 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 13:46:38,828 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:46:38" (1/1) ... No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 13:46:38,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-23 13:46:38,930 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-12-23 13:46:38,930 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 13:46:38,930 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-23 13:46:38,930 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-12-23 13:46:38,931 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-12-23 13:46:38,931 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-12-23 13:46:38,933 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-12-23 13:46:38,933 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-12-23 13:46:38,934 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-12-23 13:46:38,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 13:46:38,937 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-12-23 13:46:38,938 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 13:46:38,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 13:46:38,940 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-12-23 13:46:39,510 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 13:46:39,511 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2020-12-23 13:46:39,513 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 01:46:39 BoogieIcfgContainer [2020-12-23 13:46:39,514 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 13:46:39,516 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 13:46:39,516 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 13:46:39,520 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 13:46:39,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 01:46:37" (1/3) ... [2020-12-23 13:46:39,521 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b1ae814 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 01:46:39, skipping insertion in model container [2020-12-23 13:46:39,522 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:46:38" (2/3) ... [2020-12-23 13:46:39,522 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b1ae814 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 01:46:39, skipping insertion in model container [2020-12-23 13:46:39,522 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 01:46:39" (3/3) ... [2020-12-23 13:46:39,524 INFO L111 eAbstractionObserver]: Analyzing ICFG safe035_tso.opt.i [2020-12-23 13:46:39,532 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-23 13:46:39,533 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 13:46:39,538 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-23 13:46:39,539 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-23 13:46:39,576 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:39,577 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:39,577 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:39,577 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:39,577 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:39,578 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:39,578 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:39,578 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:39,578 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:39,579 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:39,579 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:39,579 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:39,579 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:39,580 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:39,580 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:39,580 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:39,580 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:39,580 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:39,581 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:39,581 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:39,581 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:39,581 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:39,582 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:39,582 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:39,582 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:39,582 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:39,583 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:39,583 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:39,583 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:39,583 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:39,583 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:39,583 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:39,584 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:39,584 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:39,584 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:39,585 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:39,587 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:39,587 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:39,588 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:39,588 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:39,593 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:39,593 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:39,594 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:39,594 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:39,596 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:39,597 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:39,597 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:39,597 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:46:39,600 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-12-23 13:46:39,622 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-12-23 13:46:39,647 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 13:46:39,647 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 13:46:39,647 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 13:46:39,648 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 13:46:39,648 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 13:46:39,648 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 13:46:39,648 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 13:46:39,648 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 13:46:39,661 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-12-23 13:46:39,663 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 83 places, 75 transitions, 165 flow [2020-12-23 13:46:39,667 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 83 places, 75 transitions, 165 flow [2020-12-23 13:46:39,668 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 83 places, 75 transitions, 165 flow [2020-12-23 13:46:39,712 INFO L129 PetriNetUnfolder]: 2/72 cut-off events. [2020-12-23 13:46:39,712 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-12-23 13:46:39,717 INFO L84 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 72 events. 2/72 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 54 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2020-12-23 13:46:39,720 INFO L116 LiptonReduction]: Number of co-enabled transitions 1296 [2020-12-23 13:46:41,696 WARN L197 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2020-12-23 13:46:41,841 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2020-12-23 13:46:42,599 WARN L197 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2020-12-23 13:46:42,703 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-12-23 13:46:42,941 WARN L197 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2020-12-23 13:46:43,060 INFO L131 LiptonReduction]: Checked pairs total: 2511 [2020-12-23 13:46:43,060 INFO L133 LiptonReduction]: Total number of compositions: 63 [2020-12-23 13:46:43,068 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-12-23 13:46:43,098 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-12-23 13:46:43,100 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-12-23 13:46:43,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-23 13:46:43,108 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:46:43,109 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:46:43,110 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:46:43,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:46:43,116 INFO L82 PathProgramCache]: Analyzing trace with hash -1857977145, now seen corresponding path program 1 times [2020-12-23 13:46:43,127 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:46:43,128 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131230886] [2020-12-23 13:46:43,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:46:43,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:46:43,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:46:43,317 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131230886] [2020-12-23 13:46:43,318 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:46:43,318 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 13:46:43,319 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516689745] [2020-12-23 13:46:43,325 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-23 13:46:43,325 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:46:43,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-23 13:46:43,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-23 13:46:43,346 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-12-23 13:46:43,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:46:43,390 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-12-23 13:46:43,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-23 13:46:43,392 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-12-23 13:46:43,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:46:43,423 INFO L225 Difference]: With dead ends: 362 [2020-12-23 13:46:43,424 INFO L226 Difference]: Without dead ends: 298 [2020-12-23 13:46:43,429 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-23 13:46:43,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-12-23 13:46:43,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-12-23 13:46:43,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-12-23 13:46:43,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-12-23 13:46:43,564 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-12-23 13:46:43,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:46:43,565 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-12-23 13:46:43,565 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-23 13:46:43,566 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-12-23 13:46:43,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-23 13:46:43,567 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:46:43,567 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:46:43,568 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 13:46:43,568 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:46:43,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:46:43,569 INFO L82 PathProgramCache]: Analyzing trace with hash -1762722497, now seen corresponding path program 1 times [2020-12-23 13:46:43,569 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:46:43,569 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424846431] [2020-12-23 13:46:43,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:46:43,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:46:43,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:46:43,792 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424846431] [2020-12-23 13:46:43,793 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:46:43,793 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 13:46:43,793 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765643037] [2020-12-23 13:46:43,795 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 13:46:43,795 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:46:43,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 13:46:43,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 13:46:43,797 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 4 states. [2020-12-23 13:46:43,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:46:43,871 INFO L93 Difference]: Finished difference Result 552 states and 1504 transitions. [2020-12-23 13:46:43,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 13:46:43,872 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-12-23 13:46:43,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:46:43,876 INFO L225 Difference]: With dead ends: 552 [2020-12-23 13:46:43,876 INFO L226 Difference]: Without dead ends: 382 [2020-12-23 13:46:43,877 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 13:46:43,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2020-12-23 13:46:43,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 298. [2020-12-23 13:46:43,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-12-23 13:46:43,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 792 transitions. [2020-12-23 13:46:43,899 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 792 transitions. Word has length 9 [2020-12-23 13:46:43,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:46:43,899 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 792 transitions. [2020-12-23 13:46:43,899 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 13:46:43,900 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 792 transitions. [2020-12-23 13:46:43,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-23 13:46:43,901 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:46:43,902 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:46:43,902 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-23 13:46:43,902 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:46:43,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:46:43,903 INFO L82 PathProgramCache]: Analyzing trace with hash 1189149087, now seen corresponding path program 1 times [2020-12-23 13:46:43,903 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:46:43,904 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984882391] [2020-12-23 13:46:43,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:46:43,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:46:44,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:46:44,041 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984882391] [2020-12-23 13:46:44,042 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:46:44,042 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 13:46:44,042 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617915253] [2020-12-23 13:46:44,043 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 13:46:44,043 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:46:44,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 13:46:44,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-23 13:46:44,045 INFO L87 Difference]: Start difference. First operand 298 states and 792 transitions. Second operand 5 states. [2020-12-23 13:46:44,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:46:44,097 INFO L93 Difference]: Finished difference Result 338 states and 836 transitions. [2020-12-23 13:46:44,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-23 13:46:44,098 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-12-23 13:46:44,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:46:44,100 INFO L225 Difference]: With dead ends: 338 [2020-12-23 13:46:44,100 INFO L226 Difference]: Without dead ends: 222 [2020-12-23 13:46:44,101 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-12-23 13:46:44,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2020-12-23 13:46:44,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 182. [2020-12-23 13:46:44,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2020-12-23 13:46:44,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 468 transitions. [2020-12-23 13:46:44,110 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 468 transitions. Word has length 10 [2020-12-23 13:46:44,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:46:44,110 INFO L481 AbstractCegarLoop]: Abstraction has 182 states and 468 transitions. [2020-12-23 13:46:44,110 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 13:46:44,110 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 468 transitions. [2020-12-23 13:46:44,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-23 13:46:44,112 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:46:44,112 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:46:44,112 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-23 13:46:44,113 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:46:44,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:46:44,113 INFO L82 PathProgramCache]: Analyzing trace with hash 681758540, now seen corresponding path program 1 times [2020-12-23 13:46:44,114 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:46:44,114 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241543140] [2020-12-23 13:46:44,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:46:44,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:46:44,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:46:44,213 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241543140] [2020-12-23 13:46:44,213 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:46:44,213 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 13:46:44,213 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932416466] [2020-12-23 13:46:44,214 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 13:46:44,214 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:46:44,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 13:46:44,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 13:46:44,218 INFO L87 Difference]: Start difference. First operand 182 states and 468 transitions. Second operand 3 states. [2020-12-23 13:46:44,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:46:44,227 INFO L93 Difference]: Finished difference Result 146 states and 331 transitions. [2020-12-23 13:46:44,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 13:46:44,228 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-12-23 13:46:44,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:46:44,229 INFO L225 Difference]: With dead ends: 146 [2020-12-23 13:46:44,229 INFO L226 Difference]: Without dead ends: 146 [2020-12-23 13:46:44,230 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 13:46:44,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-12-23 13:46:44,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2020-12-23 13:46:44,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-12-23 13:46:44,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 331 transitions. [2020-12-23 13:46:44,235 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 331 transitions. Word has length 12 [2020-12-23 13:46:44,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:46:44,235 INFO L481 AbstractCegarLoop]: Abstraction has 146 states and 331 transitions. [2020-12-23 13:46:44,236 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 13:46:44,236 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 331 transitions. [2020-12-23 13:46:44,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-23 13:46:44,237 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:46:44,237 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:46:44,238 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-23 13:46:44,238 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:46:44,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:46:44,239 INFO L82 PathProgramCache]: Analyzing trace with hash -2034044923, now seen corresponding path program 1 times [2020-12-23 13:46:44,239 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:46:44,239 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386230189] [2020-12-23 13:46:44,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:46:44,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:46:44,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:46:44,293 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386230189] [2020-12-23 13:46:44,293 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:46:44,294 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 13:46:44,294 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238354149] [2020-12-23 13:46:44,294 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 13:46:44,294 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:46:44,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 13:46:44,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-23 13:46:44,295 INFO L87 Difference]: Start difference. First operand 146 states and 331 transitions. Second operand 4 states. [2020-12-23 13:46:44,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:46:44,313 INFO L93 Difference]: Finished difference Result 101 states and 200 transitions. [2020-12-23 13:46:44,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 13:46:44,313 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-12-23 13:46:44,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:46:44,314 INFO L225 Difference]: With dead ends: 101 [2020-12-23 13:46:44,315 INFO L226 Difference]: Without dead ends: 101 [2020-12-23 13:46:44,315 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-23 13:46:44,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2020-12-23 13:46:44,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 97. [2020-12-23 13:46:44,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-12-23 13:46:44,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 190 transitions. [2020-12-23 13:46:44,319 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 190 transitions. Word has length 13 [2020-12-23 13:46:44,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:46:44,319 INFO L481 AbstractCegarLoop]: Abstraction has 97 states and 190 transitions. [2020-12-23 13:46:44,319 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 13:46:44,319 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 190 transitions. [2020-12-23 13:46:44,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-23 13:46:44,320 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:46:44,320 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:46:44,321 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-23 13:46:44,321 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:46:44,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:46:44,321 INFO L82 PathProgramCache]: Analyzing trace with hash -666358640, now seen corresponding path program 1 times [2020-12-23 13:46:44,322 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:46:44,322 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516618895] [2020-12-23 13:46:44,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:46:44,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:46:44,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:46:44,401 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516618895] [2020-12-23 13:46:44,401 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:46:44,401 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 13:46:44,401 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455804350] [2020-12-23 13:46:44,402 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 13:46:44,402 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:46:44,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 13:46:44,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 13:46:44,404 INFO L87 Difference]: Start difference. First operand 97 states and 190 transitions. Second operand 5 states. [2020-12-23 13:46:44,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:46:44,451 INFO L93 Difference]: Finished difference Result 181 states and 338 transitions. [2020-12-23 13:46:44,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 13:46:44,451 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-12-23 13:46:44,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:46:44,453 INFO L225 Difference]: With dead ends: 181 [2020-12-23 13:46:44,453 INFO L226 Difference]: Without dead ends: 140 [2020-12-23 13:46:44,453 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-23 13:46:44,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-12-23 13:46:44,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 97. [2020-12-23 13:46:44,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-12-23 13:46:44,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 186 transitions. [2020-12-23 13:46:44,457 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 186 transitions. Word has length 15 [2020-12-23 13:46:44,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:46:44,458 INFO L481 AbstractCegarLoop]: Abstraction has 97 states and 186 transitions. [2020-12-23 13:46:44,458 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 13:46:44,458 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 186 transitions. [2020-12-23 13:46:44,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-23 13:46:44,459 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:46:44,459 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:46:44,459 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-23 13:46:44,459 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:46:44,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:46:44,460 INFO L82 PathProgramCache]: Analyzing trace with hash -574188510, now seen corresponding path program 2 times [2020-12-23 13:46:44,460 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:46:44,460 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753131221] [2020-12-23 13:46:44,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:46:44,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:46:44,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:46:44,507 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753131221] [2020-12-23 13:46:44,507 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:46:44,507 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 13:46:44,507 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227755508] [2020-12-23 13:46:44,508 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 13:46:44,508 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:46:44,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 13:46:44,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-23 13:46:44,509 INFO L87 Difference]: Start difference. First operand 97 states and 186 transitions. Second operand 5 states. [2020-12-23 13:46:44,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:46:44,529 INFO L93 Difference]: Finished difference Result 77 states and 147 transitions. [2020-12-23 13:46:44,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 13:46:44,530 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-12-23 13:46:44,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:46:44,531 INFO L225 Difference]: With dead ends: 77 [2020-12-23 13:46:44,531 INFO L226 Difference]: Without dead ends: 69 [2020-12-23 13:46:44,531 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-23 13:46:44,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-12-23 13:46:44,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 65. [2020-12-23 13:46:44,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-12-23 13:46:44,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 123 transitions. [2020-12-23 13:46:44,534 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 123 transitions. Word has length 15 [2020-12-23 13:46:44,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:46:44,535 INFO L481 AbstractCegarLoop]: Abstraction has 65 states and 123 transitions. [2020-12-23 13:46:44,535 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 13:46:44,535 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 123 transitions. [2020-12-23 13:46:44,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-23 13:46:44,535 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:46:44,536 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:46:44,536 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-23 13:46:44,536 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:46:44,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:46:44,536 INFO L82 PathProgramCache]: Analyzing trace with hash -681441042, now seen corresponding path program 1 times [2020-12-23 13:46:44,537 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:46:44,537 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821179907] [2020-12-23 13:46:44,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:46:44,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:46:44,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:46:44,625 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821179907] [2020-12-23 13:46:44,625 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:46:44,625 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 13:46:44,626 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611056031] [2020-12-23 13:46:44,627 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 13:46:44,627 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:46:44,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 13:46:44,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-23 13:46:44,628 INFO L87 Difference]: Start difference. First operand 65 states and 123 transitions. Second operand 6 states. [2020-12-23 13:46:44,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:46:44,696 INFO L93 Difference]: Finished difference Result 129 states and 226 transitions. [2020-12-23 13:46:44,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-23 13:46:44,696 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2020-12-23 13:46:44,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:46:44,697 INFO L225 Difference]: With dead ends: 129 [2020-12-23 13:46:44,697 INFO L226 Difference]: Without dead ends: 51 [2020-12-23 13:46:44,698 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2020-12-23 13:46:44,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-12-23 13:46:44,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 47. [2020-12-23 13:46:44,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-12-23 13:46:44,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 76 transitions. [2020-12-23 13:46:44,700 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 76 transitions. Word has length 18 [2020-12-23 13:46:44,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:46:44,701 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 76 transitions. [2020-12-23 13:46:44,701 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 13:46:44,701 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 76 transitions. [2020-12-23 13:46:44,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-23 13:46:44,701 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:46:44,702 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:46:44,702 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-23 13:46:44,702 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:46:44,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:46:44,702 INFO L82 PathProgramCache]: Analyzing trace with hash 1665896384, now seen corresponding path program 2 times [2020-12-23 13:46:44,703 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:46:44,703 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41669347] [2020-12-23 13:46:44,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:46:44,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:46:44,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:46:44,806 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41669347] [2020-12-23 13:46:44,807 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:46:44,807 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 13:46:44,807 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189194502] [2020-12-23 13:46:44,807 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 13:46:44,807 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:46:44,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 13:46:44,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-23 13:46:44,808 INFO L87 Difference]: Start difference. First operand 47 states and 76 transitions. Second operand 6 states. [2020-12-23 13:46:44,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:46:44,855 INFO L93 Difference]: Finished difference Result 61 states and 98 transitions. [2020-12-23 13:46:44,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 13:46:44,855 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2020-12-23 13:46:44,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:46:44,856 INFO L225 Difference]: With dead ends: 61 [2020-12-23 13:46:44,856 INFO L226 Difference]: Without dead ends: 37 [2020-12-23 13:46:44,857 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-23 13:46:44,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-12-23 13:46:44,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-12-23 13:46:44,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-12-23 13:46:44,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 57 transitions. [2020-12-23 13:46:44,859 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 57 transitions. Word has length 18 [2020-12-23 13:46:44,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:46:44,859 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 57 transitions. [2020-12-23 13:46:44,859 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 13:46:44,859 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 57 transitions. [2020-12-23 13:46:44,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-23 13:46:44,860 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:46:44,860 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:46:44,860 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-23 13:46:44,860 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:46:44,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:46:44,861 INFO L82 PathProgramCache]: Analyzing trace with hash -1696595058, now seen corresponding path program 3 times [2020-12-23 13:46:44,861 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:46:44,861 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268894959] [2020-12-23 13:46:44,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:46:44,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:46:44,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:46:44,973 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268894959] [2020-12-23 13:46:44,973 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:46:44,973 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 13:46:44,974 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663917289] [2020-12-23 13:46:44,974 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 13:46:44,974 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:46:44,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 13:46:44,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 13:46:44,975 INFO L87 Difference]: Start difference. First operand 37 states and 57 transitions. Second operand 5 states. [2020-12-23 13:46:45,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:46:45,013 INFO L93 Difference]: Finished difference Result 36 states and 56 transitions. [2020-12-23 13:46:45,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 13:46:45,013 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-12-23 13:46:45,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:46:45,013 INFO L225 Difference]: With dead ends: 36 [2020-12-23 13:46:45,014 INFO L226 Difference]: Without dead ends: 0 [2020-12-23 13:46:45,014 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-23 13:46:45,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-23 13:46:45,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-23 13:46:45,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-23 13:46:45,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-23 13:46:45,015 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-12-23 13:46:45,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:46:45,017 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-23 13:46:45,017 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 13:46:45,017 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-23 13:46:45,017 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-23 13:46:45,017 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-23 13:46:45,021 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.12 01:46:45 BasicIcfg [2020-12-23 13:46:45,021 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-23 13:46:45,022 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-23 13:46:45,022 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-23 13:46:45,022 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-23 13:46:45,023 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 01:46:39" (3/4) ... [2020-12-23 13:46:45,027 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-23 13:46:45,035 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-12-23 13:46:45,036 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-12-23 13:46:45,036 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2020-12-23 13:46:45,043 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2020-12-23 13:46:45,043 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-23 13:46:45,043 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-23 13:46:45,043 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-23 13:46:45,110 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/pthread-wmm/safe035_tso.opt.i-witness.graphml [2020-12-23 13:46:45,111 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-23 13:46:45,112 INFO L168 Benchmark]: Toolchain (without parser) took 7230.51 ms. Allocated memory was 151.0 MB in the beginning and 219.2 MB in the end (delta: 68.2 MB). Free memory was 125.3 MB in the beginning and 166.6 MB in the end (delta: -41.3 MB). Peak memory consumption was 27.9 MB. Max. memory is 8.0 GB. [2020-12-23 13:46:45,113 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 151.0 MB. Free memory is still 123.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-23 13:46:45,113 INFO L168 Benchmark]: CACSL2BoogieTranslator took 860.47 ms. Allocated memory is still 151.0 MB. Free memory was 125.1 MB in the beginning and 130.2 MB in the end (delta: -5.1 MB). Peak memory consumption was 32.3 MB. Max. memory is 8.0 GB. [2020-12-23 13:46:45,114 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.71 ms. Allocated memory is still 151.0 MB. Free memory was 130.2 MB in the beginning and 128.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-23 13:46:45,114 INFO L168 Benchmark]: Boogie Preprocessor took 29.56 ms. Allocated memory is still 151.0 MB. Free memory was 128.6 MB in the beginning and 127.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-23 13:46:45,115 INFO L168 Benchmark]: RCFGBuilder took 687.19 ms. Allocated memory is still 151.0 MB. Free memory was 127.1 MB in the beginning and 104.5 MB in the end (delta: 22.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. [2020-12-23 13:46:45,115 INFO L168 Benchmark]: TraceAbstraction took 5505.51 ms. Allocated memory was 151.0 MB in the beginning and 219.2 MB in the end (delta: 68.2 MB). Free memory was 104.5 MB in the beginning and 169.8 MB in the end (delta: -65.3 MB). Peak memory consumption was 2.9 MB. Max. memory is 8.0 GB. [2020-12-23 13:46:45,116 INFO L168 Benchmark]: Witness Printer took 88.94 ms. Allocated memory is still 219.2 MB. Free memory was 169.8 MB in the beginning and 166.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-12-23 13:46:45,119 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 151.0 MB. Free memory is still 123.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 860.47 ms. Allocated memory is still 151.0 MB. Free memory was 125.1 MB in the beginning and 130.2 MB in the end (delta: -5.1 MB). Peak memory consumption was 32.3 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 48.71 ms. Allocated memory is still 151.0 MB. Free memory was 130.2 MB in the beginning and 128.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 29.56 ms. Allocated memory is still 151.0 MB. Free memory was 128.6 MB in the beginning and 127.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 687.19 ms. Allocated memory is still 151.0 MB. Free memory was 127.1 MB in the beginning and 104.5 MB in the end (delta: 22.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 5505.51 ms. Allocated memory was 151.0 MB in the beginning and 219.2 MB in the end (delta: 68.2 MB). Free memory was 104.5 MB in the beginning and 169.8 MB in the end (delta: -65.3 MB). Peak memory consumption was 2.9 MB. Max. memory is 8.0 GB. * Witness Printer took 88.94 ms. Allocated memory is still 219.2 MB. Free memory was 169.8 MB in the beginning and 166.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 845 VarBasedMoverChecksPositive, 39 VarBasedMoverChecksNegative, 7 SemBasedMoverChecksPositive, 32 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 68 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.3s, 83 PlacesBefore, 32 PlacesAfterwards, 75 TransitionsBefore, 23 TransitionsAfterwards, 1296 CoEnabledTransitionPairs, 5 FixpointIterations, 18 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 1 ChoiceCompositions, 63 TotalNumberOfCompositions, 2511 MoverChecksTotal - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 74 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.3s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.4s, HoareTripleCheckerStatistics: 209 SDtfs, 192 SDslu, 317 SDs, 0 SdLazy, 140 SolverSat, 37 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 49 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 179 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 136 NumberOfCodeBlocks, 136 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 126 ConstructedInterpolants, 0 QuantifiedInterpolants, 7590 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...